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Application of carbon nano tube in polyethylene fiber composite weftless fabric

A polyethylene fiber, carbon nanotube technology, applied in the direction of hydrocarbon copolymer adhesive, single-component polyolefin rayon, non-woven fabric, etc., can solve the comprehensive performance impact of composite non-woven fabric, comprehensive mechanical strength poor heat resistance and other problems, to achieve the effects of excellent impact resistance, passivation impact force, and excellent heat resistance

Inactive Publication Date: 2009-12-09
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, this kind of composite non-weft fabric, due to the shortcomings of the adhesive itself as the matrix, affects the comprehensive performance of the composite non-weft fabric, which is reflected in poor heat resistance, poor comprehensive mechanical strength, and severe creep. UHMWPE fiber composite non-weft fabric cannot effectively "passivate" the impact of bullets, and can only achieve bulletproof effect by increasing the number of non-weft fabric layers, but this will increase the load of general soldiers and police

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Immerse 2g carbon nanotubes in the mixed solution of 100ml sulfuric acid and potassium permanganate, process at reflux temperature for 1.5 hours, the concentration of potassium permanganate in sulfuric acid is 5g / 100ml; 2g purified carbon nanotubes and The butyl titanate coupling agent was refluxed in ethanol for 2 hours to obtain carbon nanotubes grafted by the coupling agent, and the concentration of the titanate coupling agent in ethanol was 0.03 g / ml.

[0028] Mix a certain amount of carbon nanotubes with the adhesive, stir at 60-80°C for 1-2h, and vacuum defoam. The reinforcement UHMWPE fibers are wound in parallel on the winder, and then glued on the UHMWPE fibers (or the UHMWPE fibers are immersed in the adhesive). The number of glue application is 1-2 times, pay attention to the uniform application of glue. The adhesive used in this embodiment is KRATON G-1650, which is dissolved in a mixed solvent (hexane: diethyl ether: ethyl acetate=5: 0.5: 1, then add antio...

Embodiment 2

[0031] In addition to the doping amount of carbon nanotubes is 2g / m 2 Except for the non-weft cloth, the others were the same as in Example 1 to obtain a composite non-weft cloth.

[0032] Bulletproof effect: 40 layers, 450mm×450mm AD=160g / m 2 The UD materials are neatly stacked on the target frame with the backing of clay, using Type 51 ordinary bombs, according to the US military 662EV 50 Test standard, V measured with Type 51 long barrel and Type 51 ordinary bullet (lead core bullet) 50 ≥557m / s.

Embodiment 3

[0034] Except that carbon nanotubes are not added, and a certain amount of organic montmorillonite is mixed with the adhesive, the mixing ratio is 1:19, stirred at 60-80°C for 1-2h, and vacuum defoaming, the others are the same as in Example 1, Composite non-weft fabric is obtained. The amount of montmorillonite added is 4.6g / m 2 No weft.

[0035] Bulletproof effect: 40 layers, 450mm×450mm AD=160g / m 2 The UD materials are neatly stacked on the target frame with the backing of clay, using Type 51 ordinary bombs, according to the US military 662EV 50 Test standard, V measured with Type 51 long barrel and Type 51 ordinary bullet (lead core bullet) 50 ≥580m / s.

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PUM

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Abstract

The invention relates to the application of carbon nanotubes in polyethylene fiber composite non-woven fabrics. The nanoparticles are two-dimensional nanometer carbon nanotubes, which are seamless hollow tubes surrounded by hexagonal carbon atom grids. Covered by large fullerene molecules with a diameter of a few tenths of nanometers to tens of nanometers and a length of several to hundreds of microns. Preparation includes: (1) Pretreatment of carbon nanotubes: purification and organic treatment; reflux 1-4g carbon nanotubes / ml and 0.01-0.04g / ml titanate coupling agent in organic solvent for 1-3 hours ; (2) Mix carbon nanotubes with adhesive, stir at 60-80°C for 1-2 hours, and vacuum defoam; (3) Spread the reinforcement UHMWPE fiber evenly on the winding machine; (4) Glue, the number of times 1-2 times, dry at 40-70°C; (5) Dry at 60±3°C after coating for 10-20min. The invention increases the use temperature of the polyethylene fiber composite non-weft fabric by 10°C, improves the impact resistance by 20%, has excellent heat resistance, strength and creep resistance, and can resist impact, bulletproof and knife stab.

Description

technical field [0001] The invention belongs to the field of nano textile applications, in particular to the application of carbon nanotubes in polyethylene (UHMWPE) fiber composite non-woven fabrics. Background technique [0002] Polyethylene (UHMWPE) fiber composite non-weft fabric is made of UHMWPE fibers after they are uniformly, parallel and straight arranged, then glued and dried. This process has been described in US4,916,000 and US5,149,391. The glued adhesives generally include polyethylene, cross-linked polyethylene, polypropylene, vinyl copolymer, propylene copolymer, ethylene-propylene copolymer and other olefin polymers and copolymers, as well as unsaturated polyester, polybutylene Many low-modulus resins such as diene, polyisoprene, natural rubber, epoxy resin, polyimide, etc., in addition, there are EVA, EEA, SBS, SIS, TPR, SEBS, etc. Styrene, PVB, PVA, etc., these thermoplastic high-tough glues. These low-modulus elastomers are coated on each fiber. In addi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/58D04H3/12D04H5/04D01F6/04C01B31/02C09J11/04C09J125/08
Inventor 王依民彼·杰·莱姆斯特刘术佳
Owner DONGHUA UNIV
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