Nano Technology Presentation
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Transcript of Nano Technology Presentation
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Nano techno logy in Text i le
Industry
---------------------- predicted as the second
industrial evolution in the world
Small thing can create big business
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Nano is the word derived from the Greeklanguage that means drawf and is usedas a prefix in a system of Units denotinga factor of 10-9.1nanometer (nm) equals to 10-9 meters,or the length of one millionth of amillimeter.
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Nanotechnology
R
eflectedLight
Transmit
tedLight
70 nm particles of silver and
gold contained within the glass
Unusual optical effect
Fourth century AD
THE
BRITISHMUSEUM
LYCRUGUS CUP
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Richard P. Feynman
There's Plenty of Room at the Bottom
Gravity would become less important
Surface tension would become more important
Van der waals attraction would become important
December 29th 1959
Manipulation of Atoms and Molecules
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Professor Norio TaniguchiTokyo Science University, Japan
'Nano-technology' is a Production Technology
Top Down Approach
Processing of materials
separation,
consolidation and
deformation of by one atom or one
molecule
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Advantages
Nano-particles have small sizes(1-100 nm) Provide large surface area
Small amount material consumption will
help saving energy and environment The numerous employment opportunities
and splendid production volume for both
service and goods Novel properties improve the quality of
humans life
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Nanotechnology
As size approaches to nano scaleelectrons exhibit extraordinary
behavior due to
Strong attractive forcesQuantum effects
High surface-to-Volume ratios
High surfaceto-bulk ratios
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Application areas -textileindustry
High Tech fibers
Antibacterial
Antistatic
Flame retardant
Protecting UV radiation
Phase change material Polymer dispersion
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Application of
Nanotechnology in Textiles
Nanoparticles,46%
Nanocomposites,14%
Nanofibres,12%
Nanocapsule,10%
Nanostructure,10%
Nanoemulsion,4%
Nanofiltration,2%
Nanosphere,2%
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Nano-CareThe first technology. Uses
whisker-shaped 10nm
molecules that bind withcotton
Nano-PelNano-Pel is similar to
Nano-Care, for wool andmultiple layer fabrics
Nano-DryCreates a net-like
structure that bonds with
synthetic material, that
wick away perspiration
Nano-TouchIt uses nanofibres to bond
a cotton-like wrap around a
synthetic core. To impart
Cotton finish
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WATER REPELLANT FABRIC
The first technology that used whisker
shaped 10 nm molecules of fluorinated
monomer that is co-polymerised with
carboxylic acid oligomer and converted to
anhydride that reacts with the fibre
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Nano Whiskers
Whisker-shaped 10 nm molecules
Nano-Care
Polymeric Nano-Spheres
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Ultrahydrophobic Fibres : Lotus ApproachGrafted PolymerLayer
ReactivePolymer
Nanoparticle
PET fabric
covered with
nanoparticles
grafted layer
combination
Droplet of
water
Igor LuzinovClemson University
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SoftSegment
HardSegment
HardSegment
SoftSegment
-CH2- CH2-CH2-
H O
-N C O C -
COOH
STEP I : PREPARATION OF POLYURETHANE PREPOLYMER
STEP II : DISPERSION PROCEDURE
PU Particle
Repulsion
Electrical Double Layer
COOH or COO-NH+(Et)3
SoftSegment
HardSegment
HardSegment
SoftSegment
-CH2- CH2-CH2-
H O
-N C O C -
COOH
STEP I : PREPARATION OF POLYURETHANE PREPOLYMER
STEP II : DISPERSION PROCEDURE
PU Particle
Repulsion
Electrical Double Layer
COOH or COO-NH+(Et)3
Poly
mericNano-Sphere
s
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UV PROTECTIVE CLOTHING
The use of TiO2 nanoparticles (approx. 500nmdiameters) is done for coating textile fibres
These materials absorb light and scatter much
less than larger particles. Also use for sunprotective clothing.
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Flame Retardant
Fire resistant polyurethane resin improvesfire resistance
Free of halogens. The polyurethane has a repeating unit whichcontains bisphenol molecular structure withalkyl group at ortho position. Intumescent flame retardant- montmorilonitesynergism in polypropelene- layered silicatenanocomposite
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Nanocomposite Coatings
Nanotech-based thin films and coatings are
beginning to replace traditional epoxies andcoatings.
More cost-effective than traditional coatings.
Provide greater protection.
Nano-coatings are invisible and do not alter
the surfaces it protect,
Revolutionary impact on manufacturing of
lenses for microscopes, fabrication tools etc.
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Antimicrobial Finish:
+ ++
The Particle of Nano Silver
Cell
Membrane
This part ofBacteria is broken by
contact with the nano silver
Dyeing Bacteria that contacted
nano silver
surface treated nano silver particles rupture the cell
membrane and chemically kill the micro-organism.
The nano silver particles can be bound with binders like
polyvinyl pyrolidone or microencapsulated in a polymer
like poly(styrene co-maleic anhydride)
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The Bound Technology of the GISMicrobe Shield
GIS nano-antimicrobial
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The lipoprotein and
negatively charged cell
membrane is attractedto the positively
charged GIS treated
surface and punctured
by the long molecular
chain.
Microorganism is
electrocuted. Sincethe GIS Microbe
Shield technology isnot consumed to
destroy the organism,
it stands ready to fight
again.
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FLOURINATED MONOMER
H2C=CHCO2CH2CH2(CF2)nCF3 Where (n = 5 - 12)
IS COPOLYMERIZED WITH CARBXYLIC ACID OLIGOMER
AND CONVERTED TO ANYDRIDE THAT REACTS WITH THE
FIBRE
CHEMISORPTIVE PROCESSES
Multifunctional Polymer : Binding Groups, HydrophobicGroups, Hydrophilic Groups and Oleophobic Groups
Durable Finishes for Textiles
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Micro
Innersof MW Liquid
Innersof Elasto
Inovasof VTS Deluxe
Macro
Rosil EPX Liquid
Eposof BF Liquid
Nano
Terysil BRK Liquid
Ultima XT Liquid
Snocool SRB Liquid
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Poly (maleic anhydride)
R =Fluoroalkyl
Cotton
ClothNaH2PO2
Cure
Cotton Cloth
Copolymerize
Poly (maleic anhydride)co-
fluoroalkylene)
Cotton
ClothNaH2PO2
Cure
Cotton Cloth
Maleic anhydride)
HO R
R = Fluoroalkyl
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Polyhedral Oligomeric
Silsesquioxane (POSS)
Trifunctional Silicone Alkoxide
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Ti(OPr)4 + 4 EtOH Ti(OEt)4 + 4 PrOH
Ti(OPr)4 or Ti(OEt)4 + H2O
Ti(OH)4+ 4 PrOH or 4 EtOH
Ti(OH)4 TiO2+2H2O
Mixing titanium tetraisopropoxide, ethanoland acetic acid in a molar ratio of 1:100:0.05
TiO2coating developed byDr John Xin and Dr Walid A. Daoud
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What ROSSARI offersFinishing Agents Terysil BRK Liquid ---- Silicone softenerSnocool SRB Liquid----------- Ter silicone Polymer Lubril HDPN Liquid PE wax imulsion
Ultrabounce New liquid---- Polymeric finishing agent Ultima XT Liquid----------- Polymeric finishing agent Drapesof SBS Liquid ---------- Bodying agent
Wetting agent
Snocool Rewet Liquid
UV protective agent
Fabshield UV 100 liq
Sensoprint 2000 system
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A unique high performance nano particle based (Acrylonitile)
binder for pigment printingThe product offers unmatched adhesion to textile substrates. This
property is especially important for production of high quality goodswhere discerning consumers demand ultimate color fastness of thepigment print to rubbing, washing and dry cleaning.
Furthermore, the nano particle size of its core structure also
allows maintaining a very soft handle; property which is highlyunusual for standard latex based pigment printing binders. In light ofrecent demands for ecologically safe products, Sensoprint 101 Liquiddesigned to be environmentally friendly and completely safe to useand apply. APEO and formaldehyde free, It can even be used forpigment printing of kids wear and bed sheets.
Sensoprint 2000 system
Sensoprint 101 liquid
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Conclusion1. Adding value to a product ingenerating extra revenue for a hardpressed textile industry2. Alter and improve textiles at themolecular level and increase durability3. Improve performance beyondnormal textiles
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