FABRIC MODIFICATION BY RADIATION METHODS · 2017. 4. 25. · FABRIC MODIFICATION BY RADIATION...
Transcript of FABRIC MODIFICATION BY RADIATION METHODS · 2017. 4. 25. · FABRIC MODIFICATION BY RADIATION...
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FABRIC MODIFICATION BY RADIATION METHODS
Vincent Luo China General Nuclear
CGN Dasheng Electron Accelerator Technology Co. Ltd.
Jingye Li Shanghai Institute of Applied Physics
Chinese Academy of Sciences
FABRIC
MODIFICATION BY
RADIATION METHODS Vincent Luo
China General Nuclear
CGN Dasheng Electron Accelerator
Technology Co. Ltd.
Jingye Li
Shanghai Institute of Applied Physics
Chinese Academy of Sciences
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Main chain:
Strength
Graft chain:
Function
Radiation Induced Graft Polymerization
Key aspect:
Covalent bonding
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Applied on Cotton Fabrics
Cotton
Fabric
γ-ray or E-beam
Monomer Monomer+Nanoparticle
Functional Cotton Fabrics Superhydrophobic, Antibacterial, Conductive, Self-cleaning, ……
Advantages by the covalent bonding formation 1. Excellent laundering durability upto hundreds laundering cycles,
2. Excellent abrasion durability upto thousands cycles,
3. Comfort,
4. Undergo steam ironing ……
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Superhydrophobicity Fluoro-monomer:
Adv. Mater. 22: 5473, 2010.
Non-fluoro-monomer:
Sci. Rep. 3 : 2951, 2013.
RSC Adv. 5: 27752, 2015.
m
Monomer Routine
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Superhydrophobic cotton fabric
0 2 4 6 8 10 12
0
5
10
15
20
25
30
Absorbed Dose=5.3kGy
Dose rate=0.88 kGy/h
Deg
ree o
f g
raft
ing
(%
)
Monomer concentration (vol.%)
Fluoro-monomer:
Adv. Mater. 22: 5473, 2010.
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Microstructure of SCF
The microstructure of the fabric is unchanged before
and after the graft polymerization.
It is a suitable use for SCF, as a textile, where the
holes between bundles are retained to permit air
passage.
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Laundering durable test setup AATCC
(American
Association
of Textile
Chemists
and
Colorists)
Test Method
61-2006.
2A condition: without; 5A condition: 0.027% active chlorine
0.15% standard
WOB detergent;
49oC, 40 ± 2 rpm
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After laundering durability test
The superhydrophobicity
is well kept after 50
accelerated laundering
cycles, equivalent to 250
commercial launderings
or home-machine
launderings.
Also showed a particular oleophilicity, where the
organic liquids with surface tension lower than
30 mN/cm can spread out quickly on SCF.
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Non-fluoro-monomer
Sci. Rep. 3 : 2951, 2013.
RSC Adv. 5: 27752, 2015.
X=1, 2, 3, 4, 6, 12
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Abrasion test
44.8 kPa, other report about 12kPa.
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Self-healing by ironing
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Breathability
GB/T 5453-1997
Eq. ISO 9237:1995
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GB/T 12704.2-2009
0 10 20 30 40 50
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
38 ℃
50% humidity
Cotton-g-PLMA
Cotton-g-PHMA
Cotton-g-PBMA
Cotton-g-PPMA
Cotton-g-PEMA
Cotton-g-PMMA
No
rm
ali
zed
WV
TR
Degree of Grafting / %
Water vapor transmittance
RIGP tech keep the water vapor transmittance rate as the
pristine cotton fabric, which is important for wearing
comfortable.
Other method cannot make this.
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Anti-superbug Imidazolium salt:
ACS Appl. Mater. Interfaces. 8: 19866, 2016.
m
Monomer Routine
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多重耐药 Multi-drug Resistant
(MDR)
2013年,美国CDC发布细菌耐药威胁报告 Antibiotic Resistance Threats in the United States, 2013, Centers for Disease Control and Prevention
超强耐药 Extensively Drug-resistant
(XDR)
全耐药(无药可治) Pan-drug Resistant
(PDR)
2014年,WHO发布全球细菌耐药监测报告 Antimicrobial Resistance-Global Report on Surveillance, 2014, World Health Organization
迄今中国尚未出现病例
超级细菌 Superbugs
广泛传播+耐药性强
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Anti-superbug and laundering durable cotton fabric
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Antibacteria Effect Test Method AATCC 100−2012: Antibacterial Finishes on Textile Materials
or ISO 20743 with different incubation time and calculation method
Contact 24h
@37oC
Incubated 48h
@37oC
1 mL bacteria solution
of 1~2×105 cfu/mL
C0h A24h
Reduction = (C0h-A24h)/C0h×100%
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Cotton
The colony of A. calcoaceticus carrying blaNDM-1 gene
Antibacteria Effect
Cotton-g-PBVIM
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Superbugs
Step 1. Electrostatic interaction
of the cationic portion with the
negatively charged bacterial
cell wall.
Step 2. Lipophilic groups disturb
cell membranes, resulting in
leakage of intracellular
substances and cell death.
Antibacteria Mechanism
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After 150 laundering cycles
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Laundering durability lies in the formation of covalent bonds
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Skin Irritation Test (Rabbit): Negative ISO 10993.10−2010
Cotton-g-PBVIM
Cotton
No
erythema
or
edema
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Pilot Trial by an industrial facility
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FABRIC MODIFICATION BY RADIATION METHODS
Vincent Luo China General Nuclear
CGN Dasheng Electron Accelerator Technology Co. Ltd.
Jingye Li Shanghai Institute of Applied Physics
Chinese Academy of Sciences
Thank You !