Fabrication and Machining aspects in NGRP Composite …
Transcript of Fabrication and Machining aspects in NGRP Composite …
International Journal of Applied Engineering Research ISSN 0973-4562 Volume 14, Number 2, 2019 (Special Issue) © Research India Publications. http://www.ripublication.com
Fabrication and Machining aspects in NGRP Composite Materials
Vikas Kumar
Mechanical Engineering Department
Madan Mohan Malaviya University of
Technology
Gorakhpur 273010, India.
Prakhar Kumar Kharwar Mechanical Engineering Department
Madan Mohan Malaviya University of
Technology
Gorakhpur 273010, India.
Dr. Rajesh Kumar Verma Mechanical Engineering Department
Madan Mohan Malaviya University of
Technology
Gorakhpur 273010, India.
Abstract— The Natural Graphite Reinforced Polymer
(NGRP) composites is extensively used in the aerospace
industry, locomotive and electronic insulator due to its
engineering properties such as High thermal conductivity,
strength to weight proportion. Hand lay-up method is used to
make graphite-based polymer composite. The main intention to
produce the multi-phase polymer matrix when combining the
polymer resin and filler is to increase to the asset of polymer
compound. XRD, FE-SEM & HR-SEM has been used to find
out the building as well as morphology of prolonged graphite
compound. Basically there are four types of modification of
graphite namely graphene oxide, graphite intercalation
compound, expanded graphite & graphene. The intention of
increasing the percentage of expanded graphite is due to the
enhanced thermal stability of epoxy. The graphite nanoparticle
is majorly used because it increases the mechanical, thermal,
electrical effect during the fabrication of composite polymer. In
this paper an attempt has been made to identify the various
mechanical properties, fabrication and machining aspects of
NGRP composites and previous research done by the pioneer
researchers.
Keywords— Natural graphite, Epoxy, Extended graphite,
Nano- particle graphite.
I. INTRODUCTION
Now-a-days, fiber-strengthened polymer mixtures are used
in areas of manufacturing and aerospace application as well
as in locomotive quantities and microelectronic insulator.
So, fiber strengthened polymer synthesis need a specific in
height for execution [1-4]. Fiber strengthened polymer
mixtures are identified through strong ability weak definite
heaviness, high biochemical confrontation alongside erosion
[5-7]. A polymer resin presently needed in matrix material
for fiber reinforced composites is epoxy resins; the reason
being they have outstanding mechanical possessions, scrape
fighting and organic confrontation and also broadly
requiring a different use like glues, coverings, as well as in
shields [8-10]. Normal graphite chips are found in plenty in
environment as well have low cost, easily deform in two
dimensional constituents through great power, great
modulus standards, small deformability on high
temperature, small thermal growth coefficient, in addition to
great aspect ratio [11-16].
So, NGFs show great thermal conductivity, outstanding
thermal shockwave in addition to great rupture durability.
Graphite is in the form of natural flake to consume merit
towards linkage of interface using polymer matrix taking
place to the fabrications of compounds.
Graphite in the form of flakes has been distributed in a
solution of resin as it advances the mechanical properties of
interface of the specimen to strand strengthened mixtures.
Natural graphite flake was attractive material in areas of
great temperature application [17-20].
A three period of natural graphite strip/basal fiber/epoxy
mixtures were made since combination of basal fiber with
natural-strengthened epoxy gums can produce a broader
synergetic consequence happening on the warm air and
powered merits.
The composite made with naturally available graphite has
better design aspect as well as provides improved
mechanical power and thermal possessions at very small
expense.
To find out the direct connection to the thermal conductivity
as well as with crack stiffness through the external energy of
the compounds results into the synergetic influence of the
naturally obtained graphite.
II. PRODUCTION OF NATURAL GRAPHITE FLAKES/BASAL
FIBRES/EPOXY COMPOSITE
Fig.1. shows the fabrication process of NGFs/BFs/Epoxy
composite. NGFs/BFs/Epoxy composite has been used for
manufacturing by taking 70g epoxy resin along with the
naturally obtained graphite substance by varying weight
percentage at 10%, 20%, 30% & 40%. The epoxy resin has
been stabilized at 60˚C for 30minutes.
Fig. 1. Arrangements of Natural graphite strip/Basal fiber/Epoxy
compounds [21]
After the resin and natural graphite has been stirred in the
form of planetary combination intended used for three
minute and also the bubble has been escaped to an
emptiness furnace used for one hour.
Hand-lay-up method is used for the impregnated 35g of BFs
with epoxy and NGF. The laminated plate is hot pressed
(3MPa, 170˚c, 200min), which makes the final specimen
hard. The specimens have been named as NGB10, NGB20,
NGB30, NGB40, simultaneously.
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A. Effect of surface properties and interfacial effects of the
composite
The NGFs and matrix, composite surface is measured with a
RAME-Hart goniometer. Those value are calculated to
establish the interaction position among the watery and
compact to the recognized superficial free energy standards
and to gain detail along with exact surface energy evidence
designed for the compounds. Essential calculation designed
for thermal conductivity
k= (1)
Model of the thermal conductivity is denoted by k,
thermally diffuse of model has been represented with α
whereas ρ shows the concentration of the material with the
specific heat of the material being Cp. The specific heat has
been determined by DSC and the density has been measured
through densimetre and the diffusivity of material is
obtained by the Equation:
(2)
Where “L” is the wideness of the sample and “t” being the
time [22]. The conductivity of sample has thermally been
influenced through the graphite flakes assembled inside the
medium, along with the packing, thermal confrontation has
also been distributed on the boundary among the natural
graphite and resin medium. The thermal conductivity values
have been increased along with growing natural graphite
flake substance. It has stated that capable transmission
systems have systematically been influenced via natural
graphite substance because of great feature-relation natural
graphite elements make a thermal of pathway [23-25].
Therefore, natural graphite flake is used as putties donated
to the composites which is thermally conductive in nature
for the reason that of tremendous thermal possessions of
composite.
The updraft steadiness of natural graphite/basal fiber/epoxy
resin combinations is better by growing natural graphite
substance. Composite materials which are thermally
decomposed are extra tough owing to the warmth
confrontation of the natural graphite. The mechanical
interfacial goods of the natural graphite /basal fiber /epoxy
compounds rendering to the substance of natural graphite is
study by splintering robustness dimensions to survey crash
progress confrontation. Rupture hardness has powerfully
connected interfacial powers among stuffing and medium.
[25, 22, 27].
Calculations for Critical stress intensity factor ( ) has
computed after that calculation used for rupture strength
limit through critical strain energy release rate [53-56]:
Where,
Y= (3)
(4)
III. CHARACTERISATION REVIEW OF COMPOSITE POLYMER
A composite has a phenomenon to show the thermal
conductivity and also it is used to measure extra than three
intervals taking a thermally conductivity analyzer (LFA 447
Nano Flash® Nederland, Germany). The size of the sample
is 2mm×10 mm×10 mm and is layered through spray. An
ultraviolet updraft camera is used to portion of the heat
absorption ability to the produce sample.
New temperature limit has stabilized on 30°C aimed at 30
minutes under the atmosphere of nitrogen also the decline of
weight by means of growing temperature has been analyzed
during sustaining of heating system rate at 10 °C per minute.
Conferring to a three-point bending check used to identify
the rupture durability of compound through a universal
tensile machine tester (Lloyd LR5k) of critical stress
intensity factor associated with American standard of testing
machine (ASTM E399). The size of the model is in the
limits of 5mm×10 mm×50mm and the notch depth is partial
to the thickness and also the crosshead quickness is about 10
mm/min. A rupture flat of testing compounds is platinum-
covered also the great-determination of look over to the
electron microscope is used to detect the profile of the
rupture flat. (a)
(b) Fig.2. shows the graph of natural graphite/basal fiber/epoxy
compounds such as a utility of natural graphite substance:
(a) graph of sample which are thermally conductive in
nature (b) Change of temperature distribution related to the
time [28]
The RAME-Hart goniometer (Phoenix 300 Plus, SEO Co.)
of sessile drop technique is used to detect the angle of
contact. There are basically three ways of soaking water to
execute dimensions; purified liquid, diode methane &
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ethylene glycol. The volume of droplet to all regular soaking
water has been determined up to 5 micro-liters.
IV. IMPROVE THE PROPERTIES OF COMPOSITE USING
EXTENDED GRAPHITE AS A FILLER
A solution of mixing method is used to make the reinforced
for epoxy composite of expanded graphite. Polymer resin
and filler are combined to increase the assets of matrix
compound and produce multi-phase polymer matrix
composite. We can say that different type of filler is used to
advance the physical possessions of compounds. In the
region of composite, the field emission electron Microscopy
(FE-SEM), high resolution transmission of electron
microscopy (HR-TEM) and also X-ray diffraction (XRD) is
used to find out the building as well as morphology of
prolonged graphite/epoxy compound. Various studies are
done on conducting filler like carbon nanotube and graphite
is the main reason to improve their skill towards progress of
the thermal, electrical and mechanical possessions to natural
polymer. Conductive polymer is either essentially
conductive in nature or protecting polymer compound
through the conductive filler. Composites are applied in
bright producing equipment, sets, electromagnetic protecting
and additional application [29-31]. Conductive stuffing for
example carbon black, carbon nanotube and natural graphite
is efficiently find out. This type of filler is applied to
efficiently advance the electrical conductivity of the
polymers. When we find out relation among the carbon
nanotube, graphite continues to evoke significant
observation for the reason that of their mechanical and
electrical belongings, little compactness, informal
dispensation also small price [32-37].
Chen et al. [38] measured the stretchable power of the
expanded graphite/polystyrene compound and also found its
stretchy power which were slightly advanced compared to
the unadulterated polystyrene.
Kim et al. [39] equated to the updraft possessions of unused
polylactic acid through the expanded graphite compounds
also establish the updraft constancy for the developments
rise through the substance of expanded graphite.
The updraft possessions of compound based on the
graphite/polystyrene as well as the compound of updraft
humiliation temperature at 20ºC advanced compared to the
pure polystyrene has been stated by Xiao et al [40]. Now the
current learning, the spreading of expanded graphite in
epoxy medium to make expanded graphite has been
examined to disclose the situation to influence the properties
of expanded graphite/epoxy compounds.
A. Modernisation of graphite
There are four basic modification of graphite namely
graphene oxide, graphite intercalation compound, expanded
graphite and graphene. Graphite material forms in layer for
the effective use of natural graphite by means of a putty in a
polymer compound and coatings of compound have
different and distributed whole polymeric medium. Nano
graphite platelet is the elementary component found through
exfoliation of the natural chipped carbon based material also
taking a platelet breadth must be varied up to fewer than
0.34 to 100 nm, was hopeful at small price also light weight
substitute to metallic then carbon created electrically leading
to make strength aimed at leading polymer compounds [41-
42-43]. In the natural form or normal form there is not any
responsive charges collections present into the coatings and
as an outcome, material does not have the capability to
introduce single unit into the graphite arcades via charge
conversation responses such as remains conceivable aimed
at the coated silicates. Though, carbon based material stands
willingly introduced also container congregation for several
atoms, particles, metallic developments also salts among the
prolonged carbon based sheets to make carbon based
intercalation composites
B. Specification of graphene oxide, graphite based
intercalation compound, extended graphite
Graphene oxide have property to be recognized as oxide of
graphite, graphitic or graphitic acid; has generally ready via
the dealing chips of graphite with reacting mediators
therefore tropical collections have presented happening into
the graphite layer in that way wide the inter-sheet
arrangement of the graphene plates [44]. Oxide based
graphene was ready through Brodie in 1859 which naturally
includes the response of the chips of graphite via fuming of
nitric acid and potassium chlorate [45]. A quicker and
harmless technique to prepare graphene oxide via
responding without water in sulphuric acid, sodium nitrate
as well as potassium permanganate established by Hummers
and offeman and broadly tracked even at present time
[46].Graphite intercalation compounds have been formed
through the addition of microscopic sheets of diverse
biological type among the outer surface of the carbon based
congregation frame [47, 48].
Fig. 3. Groundwork of GNPs of graphite precipitate using midway
GIC step.
Fig.4 Polymerization of graphite based intercalation compound is not
dissolving in hydrocarbon. Character revised through authorization from
reference [52].
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When carbon based material like graphite (usually graphite
bisulphate was applied, though in the standard of some
graphite intercalation compound to be able to used) was
warmed previously a precarious high temperature or visible
to warm through energy also a big growth of flecks of
graphite happen beside c-alignment into the in-plane way,
starting caterpillar-like consensus charges through little
compactness and also great temperature confrontation also
this winded out manufactured goods are recognized as
prolonged graphite [49-51].
While graphene has been deliberated since 60 years,
theoretically it indicates a fresh lesson of material
specifically one particle is heavy therefore has a fast fame in
the ground of constituents’ science and Nano electronics
[53-55]. Five ways have been obtained & planned for the
grounding of graphene.
The involvement of chemical vapour admission of single
coating of graphite happening to the conversion of metal
surfaces [56, 57]. The route of subsequent layer into the
micro-mechanical graphite exfoliation and involved
cracking of the graphene after graphite by “Scotch”
adhesive tape [58]. The “Scotch” adhesive friction tape was
immersed into acetone toward discharge graphene and are
successively taken in a silicon cracker by silicon dioxide
coating on upper surface. The development of graphite has
been settled and also substrates electrically in protecting
similar to the silicon carbide [59].
V. CHARACTERISATION TECHNIQUES OF GRAPHITE
PLATELET/EPOXY COMPOSITE
A. Broad viewpoint of X-ray spreading
Broad viewpoint of x-ray spreading has been applied to
settle the building of the compound. Broad viewpoint of x-
ray spreading has been performed on a Rigaku spread
pattern using Cu Ka energy (lZ1.541 A°) employed on 40
kV and20 mA. The perusing variety have 4˚ to 60˚ by a
perusing rapidity of 0.5 ˚/min.
B. Mechanical analysis
Stretchy checks are made on an Instron 8500servo hydraulic
analysis of machine on the crosshead proportion is 0.25
mm/minute and also is equal towards the straining
proportion is in the form of 0.01 percent (%) per second.
Strain gages is used to note the straining rate. Through the
all cases only six check have been accepted.
C. Development of updraft factor
Epoxy resin have the capability to grow the thermal
coefficients and its compounds have been considered by a
strain equipment method. The thermal strain of slope against
temperature graph identifies thermal expansion coefficient
of the compound.
The updraft straining rate has been recorded on great
temperature strain devices. The devices have been joined on
the sample of following surface for Micro Measurements,
Combined standard techniques. Strain gauge interpretations
have been regulated by model of titanium silicate and also
the error owing to the decently rise of thermal production of
straining device has occupied in the account and also for
modification.
D. Composite based on nano graphite
Graphite Nanoparticles were used as strengthening in
fabrication of polymer composites to increase mechanical,
electrical and updraft effects [60]. Certain researchers
verified the mechanical properties polyethylene which have
a great concentration Nano composites reinforced through
expanded graphite [61-64]. They established that the tensile
strength increased to 18.7% when 40% expanded graphite
has been added, and the young’s modulus improved with
growth in graphite content [65]. Some researchers operated
on blending of PA6/HDPE (polyamide 6/high density
polyethylene) through changing configurations. They
described that the composition PA6/HDPE (2%) have
increased modulus, hardness and strength. [66] Since PA’s
have great attraction near water, researchers mixed
polypropylene by varying composition (0%, 10%, 20%,
30%) with carbon fiber as reinforcement. they settled that
liquid immersion & also width of enlargement reduced as
polypropylene content has been enhanced. The final stretchy
strength also elastic modulus (after saturation) in the range
of 10%, 20%, 30% PP are higher than neat PA.
Zhou et.al [67] planned the PA6 / PPS-CF (carbon fibers)
composites and stated that increase in totaling of carbon
fiber (CF) content in PA6 / PPS composite loses the impact
strength.
Li et.al [68] examined the mechanical assets of PA6-
Polyurethane (PU) slab co-polymer strengthened in a small
beaker fibers and determined that impact strength reduced
through the addition of SGF. It has been found that a lot of
work have been done on expansion of compounds polymer,
but slight work had been performed taking place the
development of the graphite reinforced polymer composite
designed for structural and bearing applications.
The objective of the research work must develop graphite
/PP66 composites and designed for tensile, impact and
ductility behavior.
E. Development and optimization of restraining
The impartial of designing composite structures with better
or optimized damping features has led to the growth of
mechanical philosophies for showing of composite damping
at the micromechanical and macro mechanical levels. Better
damping of composite materials combined with high
stiffness and strength can be understood through control of
the geometrical and mechanical properties at several levels.
1) Damping at the macro mechanical level
Macro mechanical developments in damping
consequence from changes in geometrical and/or
material properties at or above the lamina level in
composites but do not contain changes at the basic
material level.
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2) Effect of inter-laminar stress and the lamina
orientation on damping
Inter-laminar pressures generally arise on the plate
borders close to open boundaries into the
composite covers. These inter-laminar tensions
mean that the portion of the entire energy scattering
into the plate owing to inter-laminar checking.
3) Damping improvement through coupling effect
Shaking link happening in compounds is
influenced by constraints such as per fibre
alignment, loading order also shaking styles of
attention. There are two type of the main link styles
in composite laminates remain the bending twisting
link in symmetric laminates also the bending-
extensional link in anti-symmetric laminates [69].
Pratt et al. [70] has examined ordered thread
movement of designs in compounds such as
inducing extra restraining owing to pressure link
belongings. This research complicated the usage of
viscoelastic coatings which were preserved through
surrounded among fibres.
F. Combination of expanded graphite
Expanded graphite/epoxy compound has synthesized to
become dissimilar substances of expanded graphite
(3weightt%, 6weightt%, and 9weightt% to the foundation of
the weight of epoxy) over a combination of mixing
technique. To compute the quantity of epoxy and expanded
graphite have separately scattered in deionise liquid next to
ambient temperature through rousing designed for half an
hour. Expanded graphite holds-up is added to the epoxy
mixture and stirring has to be sustained for 3 hours. The
subsequent mixture has been centrifuged aimed at 15 minute
and also the subsequent model has dehydrated happening
into the furnace at 50ºC. The filled explanation of artificial
procedure has given below in Fig 5.
G. Review on milling machine operation
In milling process in which the work piece is fed past a
revolving cylindrical tool along with multiple cutter edge.
The alignment of tool has been vertical to the feed way. The
tool has been named as milling cutter and on the other hand
cutting edges has been named as teeth. Generally, surface of
plane is created by milling operation. Milling is a machining
operation which is used to machine plane, curled.
Basically the milling machines have been categorized such
as perpendicular or uneven sides through nourishing the
work piece counter to a revolving flat. Milling machine have
been also classified such as knee-type and cutter covering a
number of cutting limits. The accuracy of the milling
machine is better as compared to the parent machining
operation.
The milling machine with several cutters has been attached
on the arbor at the same time, hence growing the metal
removal rate plus permitting numerous sides to be machined
at the equivalent period as well as confirms the machining
precision. During milling operation, it has produced the
large number of operation and in this process removal of
material takes when the work has been fed preceding a
rotating cutter.
H. Process of milling operation
Milling process has a metal removal operation in which a
metal detaches through a revolving multipoint cutter which
has been mounted on the arbor of the milling machine. The
shape of the structure has been obtained through milling
operation and the unwanted materials have been removed.
Milling machine has certain main constituents, which have
been used such as column, saddle, its Base, table, knee,
arbour, over-arm and spindle. In milling operation, the
certain properties of surface have been improved such as
corrosion resistance, fatigue strength as well as creep life.
During milling operation, the surface roughness disturbs a
number of functional features of portions, like, rubbing
among two contacted portions, wearing of portion,
reflection, conduction of heat, dispensing capability and also
holding a lubrication oil, load bearing capacity, fatigue
resisting etc. Hence, the designated procedures have to be
accurate through the process and also the preferred complete
exterior has been specified.
I. Development of milling operation
It has been conceived to classify dual phases of growth of
milling machine tools and also machine centers [71]. Once the
investment has been determined to proceed benefit of the
remove non-creative period owing to statistical control and
concurrently when uprising in control of machine and structure
of machine has been perceived [72]. Afterwards in 1980,
while machining midpoints concentrated on decreasing the
lengthy arrangement and also tool alteration periods related
along with the milling procedure.
In 1980, development has been founded on the three paths that
is development of apparatuses along with additional gradations
of liberty in their gestures and also growth of manufacturing
association and also in enhancement of the goods of acerbic
ends.
Though computer aided manufacturing organizations may be
able to mechanically deliver tool routes, and also the cutting
circumstances conferring to work-part constituents, cutting
processes and cutting kinds. Though, it has been problematic to
copycat the knowledge and also abilities of operators in
choosing apparatuses, cutting circumstances.
J. Literature review in milling operation
Nitin B. Katrodiya et al. [73] provides an evidence around
the surface roughness which lies on numerous constraint
such as depth of cut (D), feed rate, speed of spindle (S) as
well as acerbic route which has been monitored through
device of tool.
The pioneer researchers are working in the area of
improving the surface rougness which occurs during the
milling operation. Now, various acerbic pathway has unique
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indicator and twisting has been measured by way of reaper
route plans.
The planning of cutter path strategies has been effected to
the external texture of the labour portions.
Kannan.S et al. [74] provide the concept of work which has
enlighten the limit effect happening in material removal rate
(MRR) as well as in surface Roughness of aluminum.
To improve in productivity and quality of portion,
considering the process of milling parameter like feed rate,
speed of spindle as well as in depth of cut. In face milling
the association among the input plus output response
constituent has been aimed to enhance the performance of
milling operation.
VI. DISCUSSION
A. Surface possessions of NG/Epoxy compound
Surface properties of compound material has been observed
through the use of Rame-Hart goniometer. The values
obtained from the use of Rame-Hart goniometer has been
used to compute based on the contact angle among the
liquid as well as in solid for well-known standards of
surface free energy and it has been used to get the full
features and the accurate information of surface energy.
B. Mechanical and Thermal solidity based on the natural
graphite/epoxy content of compound
The mechanical interfacial goods of the natural graphite
compounds rendering to the substance of natural graphite is
study via splintering robustness dimensions to survey crack
development of confrontation.
When the content of natural graphite has increased, the
thermal stability of NG/Epoxy compound have enhanced.
Due to the confrontation of heat, the thermal decomposition
of natural graphite/epoxy compound material is difficult.
C. Effect of thermal conductivity of the NG/Epoxy
composite
The thermal conductivity of natural graphite and epoxy
compound has been achieved with the use of advanced laser
flash technique.
Laser flash technique has been used to determine the
thermal conductivity of material through the multiplication
of specific heat as well as density, through determining the
thermal diffusivity of the model.
D. Preparation of expanded graphite/Epoxy compound
Expanded graphite/epoxy compound has synthesized to
become dissimilar substances of expanded graphite (3
weight%, 6 weight%, and 9 weight% to the foundation of
the weight of epoxy) over a combination of mixing
technique.
To compute the quantity of epoxy and expanded graphite
have separately scatter in deionize liquid next to ambient
temperature through rousing designed for half an hour.
Expanded graphite hold-up is add to the epoxy mixture and
stirring has sustained for 3 hour.
The subsequent mixture has been centrifuged aimed at 15
minute and also the subsequent model has dehydrated
happening into the furnace at 50ºC. The filled explanation of
artificial procedure has given below in Fig.5.
Dry, 24 h H2SO4+HNO3
Graphite Anhydrous Functionalized
Graphite stirring, 24 h Graphite
Heat, 900˚c
(1 minute)
Epoxy/expanded graphite Expanded graphite
Nano composite
Fig.5 Sequence of making the expanded graphite/epoxy compound.
VII. CONCLUSION
In this paper the study has been made to enhance the
mechanical as well as thermal properties with the use of
natural graphite as well as in epoxy compound which is
familiar to environment.
• The survey reveals that very small quantity of work has
been performed on graphite composites and the area
still lacks the various machining sector.
• Moreover, the Graphite composites exhibits better
machining characteristics as compared to other
traditional materials and it can be seen from the
previous state of art.
• Heat resistance is the main reason to enhance the
thermal stability of natural graphite and it has a great
thermal stability as compared to the epoxy composite.
• Mixing method is used to prepare the solution of
expanded graphite and epoxy composite and to find out
the intercalation of expanded graphite with epoxy
matrix. • Increasing the expanded graphite content; the
properties of epoxy such as thermal, electrical and
mechanical are enhanced. As we keep on increasing the
percentage of expanded graphite the thermal stability of
epoxy also starts to improve.
• The strong interfacial adhesion of the expanded
graphite along with epoxy medium has been used to
enhance the mechanical as well as thermal properties.
• The expanded graphite sheet spread over the epoxy
matrix to convert the epoxy resin into the electrically
conductive materials. Graphite nanoparticle has been
used to strengthen the fabrication of composite polymer
to increase the updraft, mechanical and electrical effect
of compound.
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REFERENCES
[1] Song SH, Park KH, Kim BH, Choi YW, Jun GH, Lee DJ,
Jeon S. Enhanced thermal conductivity of epoxy–graphene
composites by using non‐oxidized graphene flakes with
non‐covalent functionalization. Adv Mater 2013; 25:732-737.
[2] Yu A, Ramesh P, Sun X, Bekyarova E, Itkis ME, Haddon RC.
Enhanced thermal conductivity in a hybrid graphite Nano
platelet–carbon nanotube filler for epoxy composites. Adv
Mater 2008; 20:4740-4744.
[3] Kwon DJ, Shin PS, Kim JH, Baek YM, Park HS, DeVries
KL, Park JM. Interfacial properties and thermal aging of glass
fibre/epoxy composites reinforced with SiC and SiO2
nanoparticles. Compos B Eng 2017;130:46-53.
[4] Mittal G, Rhee KY, Mišković-Stanković V, Hui D.
Reinforcements in multi-scale polymer composites:
Processing, properties, and applications. Compos B Eng 2017.
[5] Borrego LP, Costa JDM, Ferreira JAM, Silva H. Fatigue
behaviour of glass fibre reinforced epoxy composites
enhanced with nanoparticles. Compos B Eng 2014; 62:65-72.
[6] Guan FL, Gui CX, Zhang HB, Jiang ZG, Jiang Y, Yu ZZ.
Enhanced thermal conductivity and satisfactory flame
retardancy of epoxy/alumina composites by combination with
graphene nanoplatelets and magnesium hydroxide. Compos B
Eng 2016; 98:134-140.
[7] Xu Y, Van Hoa S. Mechanical properties of carbon fiber
reinforced epoxy/clay Nano composites. Compos Sci Technol
338 2008;68:854-861.
[8] Park SJ, Seok SJ, Min BG. Thermal and mechanical
properties of epoxy/polyurethane blend system initiated by
cationic latent thermal catalyst. Solid State Phenom
2007;119:215-218.
[9] Nagai Y, Lai GC. Thermal conductivity of epoxy resin filled
with particulate aluminium nitride powder. J Ceram Soc Jpn
1997;105:197-200.
[10] May C. Epoxy resins: chemistry and technology. 1987.
[11] Zhou S, Chiang S, Xu J, Du H, Li B, Xu C, Kang F. Modeling
the in-plane thermal conductivity of a graphite/polymer
composite sheet with a very high content of natural flake
graphite. Carbon 2012;50:5052-5061.
[12] Su J, Zhang J. Improvement of mechanical and dielectrical
properties of ethylene propylene diene monomer
(EPDM)/barium titanate (BaTiO3) by layered mica and
graphite flakes. Compos B Eng 2017;112: 148-157.
[13] Xue C, Bai H, Tao PF, Jiang N, Wang SL. Analysis on
thermal 374 conductivity of graphite/Al composite by
experimental and modeling study. J Mater Eng Perform
2017;26:327-334.
[14] Liu X, Wang W, Wang D, Xiao B, Ni D, Chen L. Effect of
graphite flake size on the strength and thermal conductivity of
graphite flakes/Al composites. Acta Metall Sin 2017;53:869-
878.
[15] Ahmad H, Fan M, Hui D. Graphene oxide incorporated
functional materials: A review. Compos B Eng 2018.
[16] Kim KS, Rhee KY, Lee KH, Byun JH, Park SJ. Rheological
behaviors and mechanical properties of graphite
nanoplate/carbon nanotube-filled epoxy nanocomposites. J
Ind Eng Chem 2010;16:572-576.
[17] Zhou S, Chen Y, Zou H, Liang M. Thermally conductive
composites obtained by flake graphite filling immiscible
polyamide 6/polycarbonate blends. Thermochim Acta
2013;566:84-91.
[18] Su Z, Wang H, Tian K, Huang W, Guo Y, He J, Tian X.
Multifunctional anisotropic flexible cycloaliphatic epoxy resin
nanocomposites reinforced by aligned graphite flake with
non-covalent biomimetic functionalization. Compos A Appl
Sci Manuf 2018;109:472-480.
[19] Zhou C, Huang W, Chen Z, Ji G, Wang ML, Chen D, Wang
HW. 392 In-plane thermal enhancement behaviors of Al
matrix composites with oriented graphite flake alignment.
Compos B Eng 2015;70:256-262.
[20] Sun K, Qiu Y, Zhang L. Preserving flake size in an african
flake graphite ore beneficiation using a modified grinding and
pre-screening process. Minerals 2017;7:115.
[21] Song SH, Park KH, Kim BH, Choi YW, Jun GH, Lee DJ,
Jeon S. Enhanced thermal conductivity of epoxy–graphene
composites by using non‐oxidized graphene flakes with
non‐covalent functionalization. Adv Mater 2013; 25:732-737.
[22] Choi JR, Lee YS, Park SJ. Influence of electro less Ni-plated
MWCNTs on thermal conductivity and fracture toughness of
MWCNTs/Al2O3/epoxy 428 composites. Polym Korea
2013;37:449-454.
[23] Liu Z, Guo Q, Shi J, Zhai G, Liu L. Graphite blocks with high
thermal conductivity derived from natural graphite flake.
Carbon 2008;46:414-421.
[24] Mu Q, Feng S. Thermal conductivity of graphite/silicone
rubber prepared by solution intercalation. Thermochim Acta
2007;462:70-75.
[25] Zhang XH, Wang Z, Hu P, Han WB, Hong CQ. Mechanical
properties and thermal shock resistance of ZrB2–SiC ceramic
toughened with graphite flake and SiC whiskers. Scr Mater
2009;61: 809-812.
[26] Subagia IA, Tijing LD, Kim Y, Kim CS, Vista IVFP, Shon
HK. Mechanical performance of multiscale basalt fiber–epoxy
laminates containing tourmaline micro/nanoparticles. Compos
B Eng 2014;58:611-617.
[27] Yim YJ. Rhee KY, Park SJ. Influence of electroless nickel-
plating on fracture toughness of pitch-based carbon fibre
reinforced composites. Compos B Eng 2015;76:286-291.
[28] Liu X, Wang W, Wang D, Xiao B, Ni D, Chen L. Effect of
graphite flake size on the strength and thermal conductivity of
graphite flakes/Al composites. Acta Metall Sin 2017;53:869-
878.
[29] Ishigure Y, Iijima S, Ito H, et al. Electrical and elastic
properties of conductor –polymer composites [J]. J Mater Sci,
1999, 34: 2979-2985.
[30] Pinto G, Martin A J. Conducting aluminium-filled nylon 6
composites [J]. Polym Compos, 2001, 22: 65-70.
[31] Roldughin V I, Vysotskii V V. Percolation properties of
metal–filled polymer films,structure and mechanisms of
conductivity [J]. Prog Org Coat, 2000, 39: 81-100.
[32] Gabriel P, Cipriano L G, Ana J M. Polymer composites
prepared by compression molding of a mixture of carbon
Page 298 of 300
International Journal of Applied Engineering Research ISSN 0973-4562 Volume 14, Number 2, 2019 (Special Issue) © Research India Publications. http://www.ripublication.com
black and nylon 6 powder[J]. Polym Comp, 1999, 20: 804-
808.
[33] Du F, Scogna R C, Zhou W, et al. Nanotube networks in
polymer Nano composites: Rheology and electrical
conductivity [J]. Macromolecules, 2004, 37: 9048-9055.
[34] EI-Tantawy F, Abdel-Aal N, Al-Hajry A, et al. New antistatic
charge and electromagnetic shielding effectiveness from
conductive epoxy resin/plasticized carbon black composites
[J]. Polym Compos, 2008, 29: 125-132.EI-Tantawy F.
[35] Plasticized/graphite reinforced phenolic resin composites and
their application potential [J]. J Appl Polym Sci, 2007, 104:
697-709.
[36] EI-Tantawy F. Development of novel functional conducting
elastomer blends containing butyl rubber and low-density
polyethylene for current switching, temperature sensor, and
EMI shielding effectiveness applications [J]. J Appl Polym
Sci, 2005, 97: 1125-1138.
[37] Chen G, Weng W, Wu D, et al. Preparation and
characterization of graphite nanosheets from ultrasonic
powdering technique [J]. Carbon, 2004, 42:753-759.
[38] Chen G H, Wu D J, Weng W G, et al. Preparation of
polystyrene–graphite conducting nanocomposites via
intercalation polymerization [J]. Polym Int, 2001, 50: 980-
985.
[39] Kim I H, Jeong Y G. Polylactide/exfoliated graphite
nanocomposites with enhanced thermal stability, mechanical
modulus, and electrical conductivity [J]. J Polym Sci: Part B
Phys, 2010, 48: 850-858.
[40] Xiao M, Sun L, Liu J, et al. Synthesis and properties of
polystyrene/graphite nanocomposites [J]. Polymer, 2002, 43:
2245-2248.
[41] Jang BZ, Zhamu A. Processing of nanographene platelets
(NGPs) and NGP nanocomposites: a review. J Mater Sci
2008;43:5092–101.
[42] George JJ, Bhadra S, Bhowmick AK. Influence of carbon-
based nanofillers on the electrical and dielectric properties of
ethylenevinyl acetate nanocomposites. Polym Compos
2010;31:218–25.
[43] Steurer P, Wissert R, Thomann R, Mulhaupt R.
Functionalizedgraphenes and thermoplastic nanocomposites
basedupon expanded graphite oxide. Macromol Rapid
Commun 2009;30:316–27.
[44] George JJ, Bandyopadhyay A, Bhowmick AK. New
generation layered nanocomposites derived from ethylene-co-
vinyl acetate and naturally occurring graphite. J Appl Polym
Sci 2008;108:1603–16.
[45] Brodie BC. On the atomic weight of graphite. Phil Trans R
Soc LondSer A 1859;149:249–59.
[46] Hummers WS, Offeman RE. Preparation of graphitic oxide. J
Am Chem Soc 1958;80:1339–1339.
[47] Boehm H-P, Setton R, Stumpp E. Nomenclature and
terminology of graphite intercalation compounds. Pure Appl
Chem1994;66:1893–901.
[48] Dresselhaus MS, Dresselhaus G. Intercalation compounds of
graphite. Adv Phys 2002;51:1–186.
[49] Stevens RE, Ross S, Wesson SP. Exfoliated graphite from the
intercalate with ferric chloride. Carbon 1973;11:525–30.
[50] Yoshida A, Hishiyama Y, Inagaki M. Exfoliated graphite
from various intercalation compounds. Carbon 1991;29:1227–
31.
[51] Chen G-H, Wu D-J, Weng W-G, He B, Yan W. Preparation of
polystyrene–graphite conducting nanocomposites via
intercalation polymerization. Polym Int 2001;50:980–5.
[52] Shioyama H. The interactions of two chemical species in the
interlayer spacing of graphite. Synth Met 2000;114:1–15.
[53] Geim AK, Novoselov KS. The rise of graphene. Nat Mater
2007;6:183–91.
[54] Park S, Ruoff RS. Chemical methods for the production of
graphenes.Nat Nanotech 2009;4:217–24.
[55] Rafiee MA, Rafiee J, Wang Z, Song H, Yu Z-Z, Koratkar N.
Enhanced mechanical properties of nanocomposites at low
graphene content. ACS Nano 2009;3:3884–90.
[56] Eizenberg M, Blakely JM. Carbon monolayer phase
condensation on Ni (1 1 1). Surf Sci 1979;82:228–36.
[57] Aizawa T, Souda R, Otani S, Ishizawa Y, Oshima C.
Anomalous bond of monolayer graphite on transition-metal
carbide surfaces. PhysRev Lett 1990;64:768–71.
[58] Novoselov KS, Geim AK, Morozov SV, Jiang D, Zhang Y,
DubonosSV, Grigorieva IV, Firsov AA. Electric field effect in
atomically thin carbon films. Science 2004;306:666–9.
[59] Berger C, Song Z, Li X,WuX, Brown N, Naud C, Mayou D,
Li T, Hass J,Marchenkov AN, Conrad EH, First PN, de Heer
WA. Electronic confinementand coherence in patterned
epitaxial graphene. Science2006;312:1191–6.
[60] S. A. Razavi Alavi, M. Torabi Angaji, and Z. Gholami,
“Twin-Screw Extruder and Effective Parameters on the HDPE
Extrusion Process”, World Academy of Science, Engineering
and Technology, vol. 6, pp 204-207, 2009.
[61] M.D. Wakeman, P.O. Hagstrand, F. Bonjour, P.E. Bourban.J,
A.E. Manson, “Robotic tow placement for local reinforcement
of glass mat thermoplastics (GMTs)”, Composites: Part A,
vol. 33, pp 1199–1208, 2002.
[62] Mazumdar, Sanjay K, “Composites manufacturing: materials,
product, and process engineering”, Manufacturing techniques,
pp 114-247, 2002.
[63] Z.J. Yang, E. Harkin-Jones, G.H. Menary, C.G. Armstrong,
“Coupled temperature–displacement modelling of injection
stretch-blow moulding of PET bottles using Buckley model”,
Journal of Materials Processing Technology, vol. 154, pp 20–
27, 2004.
[64] Du-Xin Li, Xin Deng, Jin Wang, Jun Yang, Xiangxiang Li,
“Mechanical and tribological properties of polyamide 6–
polyurethane block copolymer reinforced with short glass
fibers”, Wear, vol. 269, pp 262–268, 2010.
[65] Guilei Sun, Xiaojie Li, Yandong Qu, Xiaohong Wang,
Honghao Yan, Yueju Zhang, “Preparation and
characterization of graphite nanosheets from detonation
technique”, Materials Letters 62, pp 703-706, 2008.
[66] Asma Yasmin, Jyi-Jiin Luo, Isaac M. Daniel, “Processing of
expanded graphite reinforced polymer nanocomposites”,
Composites Science and Technology, vol. 66, pp 1179–1186,
2006.
[67] Shaofeng Zhou, Qiaoxin Zhang, Chaoqun Wua, Jin Huang,
“Effect of carbon fiber reinforcement on the mechanical and
Page 299 of 300
International Journal of Applied Engineering Research ISSN 0973-4562 Volume 14, Number 2, 2019 (Special Issue) © Research India Publications. http://www.ripublication.com
tribological properties of polyamide6 / polyphenylene sulfide
composites”, Materials and Design, vol. 44, pp 493–499,
2013.
[68] Du-Xin Li, Xin Deng, Jin Wang, Jun Yang, Xiangxiang Li,
“Mechanical and tribological properties of polyamide 6–
polyurethane block copolymer reinforced with short glass
fibers”, Wear, vol. 269, pp 262–268, 2010.
[69] Hwang SJ, Gibson RF. The use of strain energy-based finite
element techniques in the analysis of various aspects of
damping of composite materials and structures, Journal of
Composite Materials 1992; 26:2585-2605.
[70] Pratt WF, Rotz CA, Jensen CG. Improved damping and
stiffness in composite structures using geometric fibre wave
patterns. In: Proc. ASME Noise Control and Acoustics
Division, Vol. 2, Advanced Materials for Vibroacoustic
Applications. New York: American Society for Mechanical
Engineers, 1996:3743.
[71] J. Wang, Multiple-objective optimization of machining
operations based on neural networks, Int. J. Adv. Mfg
Technol., 8, 1993, 235-243.
[72] M. S. Chua, M. Rahman, Y. S. Wong and H. T. Loh,
Determination of optimal cutting conditions using designof
experiments and optimization techniques, Int. J. Mach. Tools
Manufact., 33 (2), 1993, 297-30.
[73] Nitin B. Katrodiya and Harshad D. Patel, “Investigation of the
Effect of Cutting Parameter by Using Different Cutting Path
for End Milling Operation on Surface Roughness”, IJSRD -
International Journal for Scientific Research & Development,
Vol. 2, Issue 03, 2014.
[74] Kannan. S, Baskar. N, “Modeling and Optimization of Face
Milling Operation Based on Response Surface Methodology
and Genetic Algorithm”, International Journal of Engineering
and Technology (IJET), Vol5 Oct-Nov 2013.
Page 300 of 300