Preparation process used for polyaniline aramid composite conductive fibers and applied to protective clothing

A polyaniline aramid fiber, composite conductive technology, applied in the direction of fiber processing, fiber type, ultrasonic/sonic fiber processing, etc., can solve the problems of uneven dispersion, weak binding force, and easy separation of polyaniline and aramid fiber. The effect of strong internal bonding, improved durability, and good lubricating properties

Inactive Publication Date: 2020-05-08
YI HE STOCK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation process of polyaniline-aramid fiber composite conductive fiber applied to protective clothing, to solve the uneven dispersion between polyaniline and aramid fiber in the prior art, and the bonding force is not strong, in the long-term Defects that are easy to separate during use

Method used

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  • Preparation process used for polyaniline aramid composite conductive fibers and applied to protective clothing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041]Move the aramid fibers into a plasma reactor, and in an oxygen atmosphere, control the oxygen pressure to 40Pa, and the oxygen flow rate to 8mL / min, and conduct plasma treatment for 20 minutes to obtain plasma-treated aramid fibers;

[0042] Add the plasma-treated aramid fiber into the sodium periodate solution with a mass fraction of 3%, stir and mix for 10 minutes, and then heat and oxidize it at a temperature of 65°C for 2 hours, discharge the material, wash it with deionized water for 3 times, and then drying the washed aramid fiber to constant weight to obtain oxidized aramid fiber;

[0043] In parts by weight, successively take 10 parts of graphene oxide, 80 parts of deionized water, and 4 parts of sodium polystyrene sulfonate, first dissolve sodium polystyrene sulfonate in deionized water, then add graphene oxide, and Under the condition of ultrasonic frequency of 40kHz, after ultrasonic dispersion for 10 minutes, spray drying to obtain pretreated graphene oxide; ...

Embodiment 2

[0050] Move the aramid fiber into the plasma reactor, and in an oxygen atmosphere, control the oxygen pressure to 50Pa, and the oxygen flow rate to 9mL / min, and plasma treat it for 25 minutes to obtain the plasma treated aramid fiber;

[0051] Add the plasma-treated aramid fiber into the sodium periodate solution with a mass fraction of 8%, stir and mix for 15 minutes, and then heat and oxidize it at a temperature of 68°C for 2.5 hours, discharge the material, and wash it with deionized water for 4 times. Then dry the washed aramid fiber to constant weight to obtain oxidized aramid fiber;

[0052] In parts by weight, successively take 20 parts of graphene oxide, 100 parts of deionized water, and 5 parts of sodium polystyrene sulfonate, first dissolve sodium polystyrene sulfonate in deionized water, then add graphene oxide, and Under the condition of ultrasonic frequency of 50kHz, after ultrasonic dispersion for 20 minutes, spray drying to obtain pretreated graphene oxide;

[...

Embodiment 3

[0059] Move the aramid fiber into the plasma reactor, and in an oxygen atmosphere, control the oxygen pressure to 60Pa, and the oxygen flow rate to 10mL / min, and plasma treat it for 30 minutes to obtain the plasma treated aramid fiber;

[0060] Add the plasma-treated aramid fiber into the sodium periodate solution with a mass fraction of 15%, stir and mix for 20 minutes, and then heat and oxidize it at a temperature of 75°C for 3 hours, discharge the material, wash it with deionized water for 5 times, and then drying the washed aramid fiber to constant weight to obtain oxidized aramid fiber;

[0061] In parts by weight, successively take 30 parts of graphene oxide, 120 parts of deionized water, and 6 parts of sodium polystyrene sulfonate, first dissolve sodium polystyrene sulfonate in deionized water, then add graphene oxide, and Under the condition of ultrasonic frequency of 60kHz, after ultrasonic dispersion for 30 minutes, it was spray-dried to obtain pretreated graphene ox...

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Abstract

The present invention discloses a preparation process used for polyaniline aramid composite conductive fibers and applied to protective clothing, and belongs to the technical field of textile fabrics.In the preparation of the polyaniline aramid composite conductive fibers, firstly, aramid fibers are treated with oxygen plasmas to obtain plasma treated aramid; the plasma treated aramid is oxidizedwith a sodium periodate solution to obtain oxidized aramid; the oxidized aramid, a dopamine solution and isocyanate-modified graphene oxide are mixed and dispersed, and a heating and stirring reaction is performed to obtain graphene oxide-coated aramid; the oxidized graphene coated aramid, an oxidant, hydrochloric acid and aniline are mixed, and a heating and stirring reaction is performed to obtain composite fibers; and the composite fibers are washed with hydrochloric acid, acetone and deionized water sequentially, dried and mixed with a dehydrating agent, and a reduced pressure heating reaction, water washing and vacuum drying are performed to obtain the polyaniline aramid composite conductive fibers.

Description

technical field [0001] The invention relates to the technical field of textile fabrics, in particular to a preparation process of polyaniline-aramid composite conductive fibers used in protective clothing. Background technique [0002] Aramid fiber is one of the most widely used fibers in high-performance personal protection fabrics. The full name of aramid is poly-p-phenylene terephthalamide. It is a new type of high-tech synthetic fiber with ultra-high strength, high modulus and high temperature resistance, acid and alkali resistance, light weight, insulation, anti-aging, and life cycle. Long and other excellent performance. In addition, aramid fiber has the following characteristics: good mechanical function, higher breaking strength than ordinary aramid fiber, cotton, etc., large elongation, soft hand feeling, strong spinnability; excellent flame retardant and heat resistance, no Reduce or lose flame retardant performance due to increase in use time and washing times; ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/61D06M11/74D06M11/30D06M10/02D06M101/36
CPCD06M15/61D06M11/74D06M11/30D06M10/02D06M2101/36
Inventor 李超朱杰
Owner YI HE STOCK
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