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Super high molecular mass polythylene/carbon nano tube composite fiber used in jelly glue spinning and its preparation

A composite technology of ultra-high molecular weight and carbon nanotubes, applied in the direction of single-component polyolefin artificial filaments, etc., can solve the problems of unsmooth processing and decreased fiber strength, and achieve simple implementation methods, simple equipment, and no damage small effect

Inactive Publication Date: 2003-07-23
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For fiber materials, after the composite material obtained by intercalation is spun, nanoparticles may cause many defects in it, forming stress concentration points, reducing the strength of the fiber, and even making the processing process unable to proceed smoothly.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Immerse 2g of carbon nanotubes in a mixed solution of 100ml of 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; mix 2g of purified carbon nanotubes with titanium Butyl acid ester coupling agent was refluxed in ethanol for 2 hours to obtain carbon tubes grafted by coupling agent; the concentration of titanate coupling agent in ethanol was 0.03g / ml;

[0029] Heating range (°C)

0～100

100～110

110～120

120～130

130～180

Holding time (min)

10

30

30

30～60

120

[0030] (3) Gel spinning: the fully dissolved UHMWPE / carbon nanotube composite solution is spun by a conventional gel spinning method to obtain the fiber of the present invention.

[0031] The spinning temperature of the gel spinning method is 130° C., and the prepared gel filament is extracted and drawn three times to obtain the fiber of ...

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PUM

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Abstract

A gel-spinning ultrahigh-molecular-weight composite polyethene (UHMWPE) / carbon nanotube fibre is composed of UHMWPE and carbon nanotubes (0.01-5 wt.%) as modifier. It is prepared through purifying and organizing carbon nanotubes, preparing gel, and spinning. Its advantages are simple preparing process and high refractory and anticreep performance.

Description

technical field [0001] The invention relates to a jelly spun ultrahigh molecular weight polyethylene / carbon nanotube composite fiber and a preparation method thereof. The composite fiber is processed from a blend solution of treated carbon nanotubes and ultra-high molecular weight polyethylene through a gel spinning process, and belongs to the technical field of high-performance fibers. Background technique [0002] As we all know, ultra-high molecular weight polyethylene (UHWMPE) fiber is made of ultra-high molecular weight polyethylene as raw material, and is produced through processes such as solvent dissolution, quenching, spun jelly yarn, extraction, drying, and segmental thermal super-stretching. A novel special fiber. This fiber has excellent properties such as light weight, high strength, high modulus, UV resistance, impact resistance, seawater corrosion resistance, and electrical insulation. It has broad application prospects in military, aviation, aerospace, marin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/46
Inventor 王依民倪建华潘湘庆邹黎明王燕萍
Owner DONGHUA UNIV
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