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Method for preparing ultra-high molecular weight polyethylene/polyaniline composite conductive fibre

An ultra-high molecular weight, polyethylene fiber technology, used in fiber processing, textile and papermaking, physical processing and other directions, can solve problems such as the impact of physical and mechanical properties, improve thickness and continuity, improve processability and durability, The effect of increasing conductivity

Inactive Publication Date: 2012-10-10
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the blending of polyaniline and fiber-forming polymers has an impact on the physical and mechanical properties of the fibers after forming

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take ultra-high molecular weight polyethylene (UHMWPE) fibers (400D / 406f), use acetone to ultrasonically clean them for 20 minutes, wash and dry them, and then treat them with oxygen plasma. Treatment parameters: time 1min, power 70W, pressure 40Pa. Immerse in aniline immediately after the treatment, and the immersion time is 2h. After impregnation, take it out and squeeze it evenly, and make the mass ratio of fiber to aniline monomer 1:1.15. The reaction solution was prepared by using 20g / L ammonium persulfate as the oxidizing agent and 0.5mol / L hydrochloric acid as the doping acid. The ultra-high molecular weight polyethylene adsorbed with aniline monomer was placed in the reaction solution, the mass volume ratio of the aniline monomer to the reaction solution was 1g:100ml, the reaction temperature was 20°C, and the reaction time was 2h. After measurement, the conductivity of the UHMWPE / PANI composite conductive fiber prepared in this example is 0.14S / cm.

[0020] W...

Embodiment 2

[0027] Raw material: UHMWPE fiber (400D / 406f).

[0028] Oxygen plasma treatment conditions: time 1min, power 90W, pressure 60Pa.

[0029] Reaction solution: oxidant ammonium persulfate 20g / L, doped with hydrochloric acid 0.5mol / L.

[0030] Reaction process conditions: reaction time 2h, temperature 20°C, mass volume ratio of aniline monomer to reaction solution 1g:100ml.

[0031] Fiber conductivity: 0.07 S / cm.

Embodiment 3

[0033] Raw material: UHMWPE fiber (400D / 406f).

[0034] Oxygen plasma treatment conditions: time 1min, power 70W, pressure 40Pa.

[0035] Reaction solution: oxidant vanadium pentoxide 20g / L, doped hydrochloric acid 0.5mol / L.

[0036] Reaction process conditions: reaction time 2h, temperature 20°C, mass volume ratio of aniline monomer to reaction solution 1g:100ml.

[0037] Fiber conductivity: 1.48×10 -2 S / cm.

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Abstract

The invention discloses a method for preparing ultra-high molecular weight polyethylene / polyaniline composite conductive fibre, comprising the steps of: performing low-temperature oxygen plasma treatment on ultra-high molecular weight polyethylene fibre, wherein surface impurities of the fibre are removed, the treatment time is 0.5-1.5 minutes, the reaction power is 50-80W and the oxygen pressure is 30-50Pa; placing the fibre in aniline monomers for 0.5-2 hours, uniformly extruding the fibre after taking out the fibre, and controlling the mass ratio of the fibre and the aniline monomer at 1:1 to 1:1.3; and placing the fibre in a reaction solution at 10-35 DEG C for 0.5-3 hours, so that the fibre containing a uniform and continuous polyaniline conductive layer is obtained. By the method disclosed by the invention, the composite fibre with good conductivity is obtained, textiles or fibre reinforced composites with antistatic, conductive and electromagnetic shielding functions can be prepared, and are applied to fields of individual protection, military industry, electric products, petrochemical industry, machineries and the like.

Description

technical field [0001] The invention relates to a preparation method of conductive fibers, in particular to a preparation method of ultra-high molecular weight polyethylene / polyaniline composite conductive fibers. Background technique [0002] Ultra High Molecular Weight Polyethylene Fiber (UHMWPE fiber for short) is also called high-strength high-modulus polyethylene fiber. — Manufactured by super-stretching technology. Ultra-high molecular weight polyethylene fiber not only has the characteristics of high modulus and high strength, but also has other outstanding mechanical properties, such as good toughness and fatigue properties. When it is damaged by shearing or compression, it can still maintain its strong elongation properties, especially with Good high-speed impact resistance, good delayed recovery performance after friction and plastic deformation, etc., have been widely used in national defense military equipment, aerospace and civilian fields. Ultra-high molecula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/61D06M10/08
Inventor 潘志娟洪剑寒李敏姚穆
Owner SUZHOU UNIV
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