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Conductive aramid fiber, method for pretreating same and method for preparing conductive aramid fiber

Aramid fiber and pretreatment technology, applied in the direction of fiber treatment, fiber type, wear-resistant fiber, etc., can solve the problems of fiber performance degradation, fiber damage, environmental pollution, etc., achieve low cost, improve binding force, overcome fiber damage effect

Active Publication Date: 2019-04-02
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a conductive aramid fiber pretreatment method, a conductive aramid fiber and a preparation method thereof, which solves the problem that the existing conductive aramid fiber pretreatment can cause fiber damage, lead to fiber performance degradation, and easily cause environmental pollution question

Method used

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  • Conductive aramid fiber, method for pretreating same and method for preparing conductive aramid fiber
  • Conductive aramid fiber, method for pretreating same and method for preparing conductive aramid fiber
  • Conductive aramid fiber, method for pretreating same and method for preparing conductive aramid fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] (1) Pretreat the aramid fiber thread with a tannic acid solution with a concentration of 2 g / L for 2 hours, take out the aramid fiber thread for washing, and dry to obtain a tannic acid modified aramid fiber thread;

[0049] (2) Soak the tannic acid-modified aramid fiber thread in 30g / L nickel sulfate hexahydrate solution for 1h, take it out, and obtain the aramid fiber thread that absorbs nickel ions;

[0050] (3) Treat the aramid fiber thread adsorbed with nickel ions with 0.15 g / L potassium borohydride for 180 seconds to obtain the aramid fiber thread uniformly attached to the catalytic center of metallic nickel nanoparticles;

[0051] (4) Dissolve 4.0g copper sulfate pentahydrate, 0.5g nickel sulfate hexahydrate, 10g potassium sodium tartrate tetrahydrate, 2.0g sodium hydroxide, and 3.0g anhydrous sodium carbonate in 500ml deionized water, add 38% formaldehyde aqueous solution 3ml , to obtain the chemical plating solution;

[0052] (5) The aramid thread reduced by ...

Embodiment 2

[0055] (1) Pretreat the aramid yarn with a tannic acid solution with a concentration of 5g / L for 1.5h, take out the aramid yarn, wash it, and dry it to obtain a tannic acid modified aramid yarn;

[0056] (2) Soak the tannic acid modified aramid fiber thread in 20g / L nickel sulfate hexahydrate solution for 30min, take it out, and obtain the aramid fiber thread that absorbs nickel ions;

[0057] (3) Treat the aramid fiber thread adsorbed with nickel ions with 0.60g / L potassium borohydride solution for 60s to obtain the aramid fiber thread uniformly attached to the catalytic center of metallic nickel nanoparticles;

[0058] (4) Dissolve 3.0g copper sulfate pentahydrate, 1.0g nickel sulfate hexahydrate, 15g sodium potassium tartrate tetrahydrate, 5.0g sodium hydroxide, and 2.0g anhydrous sodium carbonate in 500ml deionized water, add 5ml of 38% formaldehyde solution , to obtain the chemical plating solution;

[0059] (5) The aramid wire reduced by potassium borohydride was soaked...

Embodiment 3

[0061] (1) Pretreat the aramid fiber thread with a tannic acid solution with a concentration of 10 g / L for 1 hour, take out the aramid fiber thread for washing, and dry to obtain a tannic acid modified aramid fiber thread;

[0062] (2) Soak the tannic acid modified aramid thread in 40g / L nickel sulfate hexahydrate solution for 1h, take it out, and obtain the aramid thread that absorbs nickel ions;

[0063] (3) Treat the aramid fiber thread adsorbed with nickel ions with 0.45g / L potassium borohydride solution for 300s to obtain the aramid fiber thread evenly attached to the catalytic center of metallic nickel nanoparticles;

[0064] (4) Dissolve 5.0g copper sulfate pentahydrate, 2.0g nickel sulfate hexahydrate, 20g potassium sodium tartrate tetrahydrate, 4.0g sodium hydroxide, and 1.0g anhydrous sodium carbonate in 500ml deionized water, add 4ml of 38% formaldehyde solution , to obtain the chemical plating solution;

[0065] (5) The aramid wire reduced by potassium borohydride...

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Abstract

The invention relates to the technical field of metallization functional textile products, in particular to a conductive aramid fiber, a method for pretreating the same and a method for preparing theconductive aramid fiber. The method for pretreating the conductive aramid fiber includes a step of adsorbing modifiers onto aramid fibers to obtain modified aramid fibers. The modifiers are selected from plant polyphenol. The conductive aramid fiber and the methods have the advantages that the green and environment-friendly modifiers are used by the method for pretreating the conductive aramid fiber and are attached to the surfaces of the aramid fibers under electrostatic interaction and the effects of hydrogen bonds, a supermolecular structure membrane layer can be formed and can be used as an interface layer between metal plating and the aramid fibers, accordingly, binding force of the metal plating and the aramid fibers can be increased, the performance of the aramid fibers can be prevented from being optionally destructed, and the shortcomings of fiber damage on existing aramid fibers, fiber performance deterioration and environmental pollution due to the traditional methods for pretreating existing conductive aramid fibers can be overcome; the method for pretreating the conductive aramid fiber is simple, green and environmentally friendly and is easy to control.

Description

technical field [0001] The invention relates to the technical field of metallized functional textiles, in particular to a pretreatment method for conductive aramid fiber, conductive aramid fiber and a preparation method thereof. Background technique [0002] As a new type of EMC material, metallized fabric has the characteristics of metal conduction, electromagnetic shielding and textile softness and breathability, and is one of the emerging functional materials. The unique structural characteristics of aromatic polyamide fiber (aramid fiber for short): the benzene rings in the molecule are arranged alternately, the molecular chain is a rigid rod-like structure, highly oriented and crystallized, endowing it with high strength, high modulus, and excellent heat resistance A series of advantages such as corrosion resistance and low expansion coefficient are widely used as high-performance structural and functional materials, and are replacing some metal wires and other inorgani...

Claims

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Application Information

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IPC IPC(8): D06M11/83D06M13/152D06M13/238D06M101/36
CPCD06M11/83D06M13/152D06M13/238D06M2101/36D06M2200/35D06M2200/50
Inventor 董智贤曾润鹏
Owner GUANGDONG UNIV OF TECH
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