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Ultrahigh molecular weight polyethylene/nano tungsten disulfide composite fiber and preparation method and application thereof

A tungsten disulfide and composite fiber technology, which is applied in the directions of single-component polyolefin man-made filament, fiber chemical characteristics, attack equipment, etc., can solve the problems of low production efficiency, difficult preparation of arc-shaped products, and difficult preparation, etc. To achieve the effect of good impact resistance and shock absorption performance

Active Publication Date: 2012-07-18
THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, B 4 The preparation of C ceramics is difficult, and it is difficult to densify at high temperature. It mainly relies on hot-press sintering (> 2000 ° C), the production efficiency is low, and the finished product is expensive, especially the preparation of large-sized and arc-shaped products is more difficult.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) 2g of nano-WS with a particle size of 120nm 2 Immerse in a mixed solution of 100ml sulfuric acid and potassium permanganate, and treat it at reflux temperature for 1.5 hours. The concentration of potassium permanganate in sulfuric acid is 5g / 100ml; 2g of purified nano-WS 2 Reflux with 3-aminopropyltriethoxysilane coupling agent in 100ml ethanol for 2 hours to obtain tungsten disulfide modified by the coupling agent. The concentration of 3-aminopropyltriethoxysilane coupling agent in ethanol is 0.03g / ml.

[0025] 2) WS modified by the coupling agent obtained in step 1) 2 UHMWPE (weight-average molecular weight 2×10 6 ) of paraffin oil (step 1) obtained coupling agent modified WS 2 The mass ratio of UHMWPE to UHMWPE is 2:98), and then slowly heat WS in a reactor with agitation and shearing 2 and UHMWPE paraffin oil solution, the stirring and shearing speed is controlled at 75-1500 rpm, the reaction temperature is gradually raised from 100 ° C to 180 ° C, the heatin...

Embodiment 2

[0029] 1) 2.5g of nano-WS with a particle size of 100nm 2Immerse in a mixed solution of 100ml sulfuric acid and potassium permanganate, and treat it at reflux temperature for 2 hours. The concentration of potassium permanganate in sulfuric acid is 5g / 100ml; 2g of purified nano-WS 2 With 3-aminopropyltriethoxysilane coupling agent in 100ml ethanol, reflux for 2 hours to obtain tungsten disulfide modified by coupling agent, the 3-aminopropyltriethoxysilane coupling agent in ethanol The concentration is 0.03g / ml.

[0030] 2) WS modified by the coupling agent obtained in step 1) 2 UHMWPE (weight-average molecular weight 2.5×10 6 ) of paraffin oil (step 1) obtained coupling agent modified WS 2 The mass ratio of UHMWPE to UHMWPE is 1.5:98.5), and then slowly heat WS in a reactor with stirring and shearing 2 and paraffin oil solution of UHMWPE, the stirring and shearing speed is controlled at 100-2000 rpm, the reaction temperature is gradually raised from 100°C to 180°C, the heat...

Embodiment 3

[0034] 1) 3g of nano WS with a particle size of 80nm 2 Immerse in a mixed solution of 100ml sulfuric acid and potassium permanganate, and treat it at reflux temperature for 2.5 hours. The concentration of potassium permanganate in sulfuric acid is 5g / 100ml; 2g of purified nano-WS 2 With 3-aminopropyltriethoxysilane coupling agent in 100ml ethanol, reflux for 2 hours to obtain tungsten disulfide modified by coupling agent, the 3-aminopropyltriethoxysilane coupling agent in ethanol The concentration is 0.03g / ml.

[0035] 2) WS modified by the coupling agent obtained in step 1) 2 UHMWPE (weight-average molecular weight: 3.0×10 6 ) of paraffin oil (step 1) obtained coupling agent modified WS 2 The mass ratio of UHMWPE to UHMWPE is 1:99), and then slowly heat WS in a reactor with agitation and shearing 2 and UHMWPE paraffin oil solution, the stirring and shearing speed is controlled at 150-2500 rpm, the reaction temperature is gradually raised from 100 ° C to 180 ° C, the heati...

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PUM

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Abstract

The invention discloses a polyethylene / nano tungsten disulfide composite fiber and a preparation method and application thereof. The composite fiber consists of nano tungsten disulfide and a product obtained by homopolymerizing polyethylene at a temperature of 100 to 200 DEG C. The polyethylene has the weight-average molecular weight of 1*106 to 4*106, preferably 1*106 to 3*106; and the nano tungsten disulfide has particle size of 10 to 150 nanometers, preferably 20 to 100 nanometers. According to the invention, nano tungsten disulfide particles are introduced into an ultrahigh molecular weight polyethylene fiber, the novel inorganic fullerene transition metal sulfide tungsten disulfide nano material has a spherical nested hollow structure, the smooth spherical appearance can ensure the stress to be more uniformly distributed along the surfaces of the particles and the nested hollow structure can adsorb a great amount of energy of impact waves, and thus, the ultrahigh molecular weight polyethylene / nano tungsten disulfide composite fiber has excellent impact resistance and vibration reducing performance.

Description

technical field [0001] The invention relates to an ultrahigh molecular weight polyethylene / nanometer tungsten disulfide composite fiber, a preparation method and application thereof. Background technique [0002] In terms of the antagonism of war, bulletproof is an inevitable product that accompanies bullet weapons. At present, conventional weapons are developing rapidly, and the threat level to individual soldiers is gradually increasing. In order to improve the bulletproof survivability and battlefield mobility of individual soldiers, it is necessary to develop a lightweight and efficient bulletproof composite material system. [0003] In the individual protection of individual soldiers, the armor materials used for bulletproof include aluminum oxide (Al 2 o 3 ), silicon carbide (SiC), boron carbide (B 4 C), silicon nitride (Si 3 N 4 ), titanium diboride (TiB 2 )Wait. Among them, alumina, silicon carbide and boron carbide are the most commonly used. These ceramic ma...

Claims

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Application Information

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IPC IPC(8): D01F6/46D01F1/10F41H1/00F41H1/02F41H1/04
Inventor 马天张建春张涛严自力张华郝新敏陆国军马永明高鹏刚沈凤川黄忆婷
Owner THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME