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Composite and conductive polyimide/nickel fiber and preparation method thereof

A polyimide fiber and composite conductive technology, which is applied in fiber types, fiber treatment, textiles and papermaking, etc., can solve the problems of various chemical reagents, unsuitable for large-scale production, cumbersome steps, etc., and achieve good electromagnetic shielding performance , metal bonding performance is good, the effect of broad market prospects

Inactive Publication Date: 2017-11-03
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The steps of this method are cumbersome, and the chemical reagents used in each step are various and the formula is complicated, so it is not suitable for large-scale production

Method used

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  • Composite and conductive polyimide/nickel fiber and preparation method thereof
  • Composite and conductive polyimide/nickel fiber and preparation method thereof
  • Composite and conductive polyimide/nickel fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A: The polyimide fiber was etched in 1 mol / L potassium hydroxide solution at 20° C. for 1 min, and the fiber was cleaned with deionized water to obtain a surface-modified polyimide fiber.

[0040] B: Immerse the modified polyimide fiber obtained in step A in a palladium chloride solution with a mass concentration of 0.1g / L at 40°C for ion exchange. The ion exchange time is 10 minutes, and the fiber is cleaned with deionized water , to obtain polyimide fibers with palladium ions on the surface.

[0041] C: Immerse the palladium ion-containing polyimide fiber obtained in step B in a solution of dimethylaminoborane with a concentration of 0.1mol / L at 40°C for chemical reduction. The reduction time is 5 minutes, and the fiber is deionized with deionized water. After cleaning, polyimide fibers with an ultra-thin palladium layer on the surface are obtained.

[0042] D: the polyimide fiber that the surface that step C obtains contains metal palladium is immersed in the electr...

Embodiment 2

[0044] A: The polyimide fiber was etched in 1 mol / L potassium hydroxide solution at 30° C. for 5 minutes, and the fiber was cleaned with deionized water to obtain a surface-modified polyimide fiber.

[0045] B: Immerse the modified polyimide fiber obtained in step A in a palladium chloride solution with a mass concentration of 0.1g / L at 40°C for ion exchange. The ion exchange time is 20 minutes, and the fiber is cleaned with deionized water , to obtain polyimide fibers with palladium ions on the surface.

[0046] C: Immerse the palladium ion-containing polyimide fiber obtained in step B in a solution of dimethylaminoborane with a concentration of 0.1mol / L at 40°C for chemical reduction. The reduction time is 5 minutes, and the fiber is deionized with deionized water. After cleaning, polyimide fibers with an ultra-thin palladium layer on the surface are obtained.

[0047] D: The polyimide fiber with metal palladium on the surface obtained in step C was immersed in the electrol...

Embodiment 3

[0049] A: The polyimide fiber was etched in 2 mol / L potassium hydroxide solution at 20° C. for 10 min, and the fiber was cleaned with deionized water to obtain a surface-modified polyimide fiber.

[0050] B: Immerse the modified polyimide fiber obtained in step A in a palladium chloride solution with a mass concentration of 0.1g / L at 40°C for ion exchange. The ion exchange time is 10 minutes, and the fiber is cleaned with deionized water , to obtain polyimide fibers with palladium ions on the surface.

[0051] C: Immerse the palladium ion-containing polyimide fiber obtained in step B in a solution of dimethylaminoborane with a concentration of 0.1mol / L at 40°C for chemical reduction. The reduction time is 5 minutes, and the fiber is deionized with deionized water. After cleaning, polyimide fibers with an ultra-thin palladium layer on the surface are obtained.

[0052] D: The polyimide fiber with metal palladium on the surface obtained in step C was immersed in the electroless...

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Abstract

The invention provides a composite and conductive polyimide / nickel fiber and a preparation method thereof and belongs to the field of electromagnetic-shielding and conductive fiber. Polyimide fiber is used as basic fiber, the surface of the polyimide fiber is supported with an ultra-thin metal layer through a surface modified ion exchange technique, then uniform precipitation of the metal nickel layer is conducted on the surface of the fiber by adopting a traditional chemical plating method, and accordingly a perfect and compact high-conductive metal nickel layer is obtained. Efficient preparation of the polyimide / nickel fiber having excellent surface metal luster, good interface caking property, high conductivity and controllable nickel layer thickness. The implementing process is simple, processizing is easy, and an application prospect is good.

Description

technical field [0001] The invention belongs to the field of electromagnetic shielding conductive fibers, in particular to a polyimide / nickel composite conductive fiber and its preparation technology. Background technique [0002] Conductive fiber refers to the standard state (20 ℃, relative humidity 65%), the conductivity of 10 -7 Fibers above S / cm. Conductive fibers have multiple functions such as conduction, antistatic, reflection and absorption of electromagnetic waves, and sensing. They are widely used in antistatic textiles in the electronics industry, conductivity sensors, electric heating bandages in the medical industry, electromagnetic wave shielding textiles, and electromagnetic in the aerospace industry. Shielding material, stealth material. World-renowned chemical fiber companies such as DuPont, Monsanto, BASF, Solutia in the United States, Epico in the United Kingdom, Kanebo, Teijin, Unitika, Kuraray and other companies are competing to launch various conduct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83D06M101/30
CPCD06M11/83D06M2101/30
Inventor 齐胜利董南希田国峰武德珍
Owner BEIJING UNIV OF CHEM TECH
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