A kind of silver-plated conductive aramid paper and preparation method thereof

A technology of aramid paper and Zhongyin, which is applied in papermaking, paper, physical treatment paper, etc., can solve the problems of low conductivity of conductive aramid fiber, unfavorable large-scale fine production, increased concentration of chemical reagents, etc., and achieve excellent washing resistance and Bending firmness, high electromagnetic shielding efficiency, and improved hydrophilicity

Active Publication Date: 2022-07-29
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires a large amount of chemical reagents to be soaked in the pre-treatment of aramid fiber, and the overall requirements for the concentration of chemical reagents, reaction time, reaction temperature and other factors are relatively high. Although the aramid fiber is endowed with certain conductivity, However, uncontrollable factors such as the concentration of chemical reagents after soaking and use increase, which is not conducive to large-scale fine production. At the same time, the processing time is long, and a large number of chemical reagents cause certain environmental pollution. The conductive aramid fibers prepared have low conductivity.

Method used

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  • A kind of silver-plated conductive aramid paper and preparation method thereof
  • A kind of silver-plated conductive aramid paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) A commercially available aramid paper substrate with a thickness of 0.18 mm was cut into a size of 5 cm×5 cm, soaked in a 50% ethanol solution, washed for 30 minutes, taken out and dried.

[0031] (2) The cleaned aramid paper substrate is subjected to normal temperature plasma treatment under the conditions that the nozzle height is 4 cm, the nozzle speed is 1 m / min, and the duty ratio is 80%.

[0032] (3) Put the plasma-treated aramid paper substrate into the silver nitrate solution with a concentration of 20g / L prepared in advance, after soaking for 30min, slowly drop the glucose solution with a concentration of 30g / L into the silver nitrate solution In the solution, after the reaction was carried out for 24 hours, the aramid paper substrate was taken out, washed with deionized water for 3 times, and then vacuum-dried at a temperature of 60° C. for 24 hours to obtain silver-plated conductive aramid paper.

[0033] The electrical resistance of the conductive aramid...

Embodiment 2

[0036] (1) A commercially available aramid paper substrate with a thickness of 0.18 mm was cut into a size of 5 cm×5 cm, soaked in a 50% ethanol solution, washed for 30 minutes, taken out and dried.

[0037] (2) The cleaned aramid paper substrate is subjected to normal temperature plasma treatment under the conditions that the nozzle height is 5 cm, the nozzle speed is 1 m / min, and the duty ratio is 80%.

[0038] (3) Put the plasma-treated aramid paper substrate into the silver nitrate solution with a concentration of 15g / L prepared in advance, after soaking for 30min, slowly add the glucose solution with a concentration of 30g / L to the silver nitrate In the solution, after the reaction was carried out for 24 hours, the aramid paper was taken out, washed three times with deionized water, and then vacuum-dried at a temperature of 60° C. for 24 hours to obtain silver-plated conductive aramid paper.

[0039] The electrical resistance of the conductive aramid paper prepared in thi...

Embodiment 3

[0042] (1) Prepare a 50% ethanol solution, cut commercially purchased aramid paper with a thickness of 0.30 mm into a size of 5 cm × 5 cm, soak it in it, wash it for 60 minutes, take it out and dry it.

[0043] (2) The cleaned aramid paper is subjected to normal temperature plasma treatment under the conditions that the nozzle height is 2 cm, the nozzle speed is 1 m / min, and the duty ratio is 30%.

[0044] (3) Put the plasma-treated aramid paper into the silver nitrate solution with a concentration of 5g / L prepared in advance, and after soaking for 60min, slowly drop the glucose solution with a concentration of 10g / L into the silver nitrate solution In , after the reaction was carried out for 36 hours, the aramid paper was taken out, washed with deionized water for 3 times, and then vacuum-dried at a temperature of 60° C. for 24 hours to obtain silver-plated conductive aramid paper.

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Abstract

The invention discloses a silver-plated conductive aramid paper and a preparation method thereof. The preparation method is as follows: a. cleaning the aramid paper substrate with a cleaning agent to remove surface impurities and drying; b. cleaning the cleaned aramid paper substrate Carry out plasma treatment to obtain a surface-activated aramid paper substrate; c. Put the plasma-treated aramid paper substrate into the silver ammonia solution, and after activation for a certain period of time, slowly drop the reducing agent into the above solution, and react for a certain period of time Afterwards, the aramid paper substrate is taken out, fully washed with deionized water and dried, and finally a silver-plated conductive aramid paper is obtained. The mass ratio of silver content in the prepared conductive aramid paper is 3%-12%, and has good electrical conductivity and electromagnetic shielding performance, and the preparation process is simple and the operation is convenient.

Description

technical field [0001] The invention relates to the technical field of conductive polymer composite materials, in particular to a silver-plated conductive aramid paper and a preparation method thereof. Background technique [0002] Conductive materials are widely used in many fields such as electrostatic protection, electromagnetic shielding, electric heating and sensors. Although traditional metal conductive materials have high electrical conductivity, they are heavy and brittle, which can no longer meet the requirements of contemporary society for lightweight and flexible materials. Conductive polymer composites have the advantages of light weight, good flexibility, and simple preparation process, and have received extensive attention in recent years. [0003] Aramid has the advantages of small specific gravity, high specific strength, good impact resistance, chemical corrosion resistance, high temperature resistance, etc. It is a good substrate for preparing conductive c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H19/06D21H23/50D21H25/04
CPCD21H19/06D21H23/50D21H25/04
Inventor 周彦粉马建伟孙振华江亮陈韶娟
Owner QINGDAO UNIV
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