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Preparation method for silver-plated glass fibers and conductive rubber of same

A technology of glass fiber and conductive rubber, applied in the field of preparation of conductive rubber and silver-plated glass fiber, can solve the problems of high density and high cost of metal conductive fillers, and achieve the effect of excellent electrical conductivity

Active Publication Date: 2012-05-02
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the existing metal conductive fillers have high density and high cost and cannot satisfy the development of the modern electronic industry, the present invention provides a preparation method of silver-plated glass fiber and the conductive rubber prepared by using the silver-plated glass fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Pre-plating treatment

[0030] Take 2 g of glass fiber and add it to the prepared 100 mL of hot lye (solute (aqueous solution) is: 1% (mass fraction) NaOH aqueous solution), stir at a constant speed of 30 min at 75 °C (350 r min -1 ), washed and degreased, taken out, washed with water and dried, and then placed in 100 mL of roughening solution (solute (aqueous solution): 3% (mass fraction) potassium dichromate, 8% concentrated sulfuric acid (98%)), Stir at a constant speed for 15 min at 30°C (300 rpm -1 ), taken out, washed with distilled water; then placed in 100 mL of sensitization solution (solute (aqueous solution): 5% (mass fraction) SnCl 2 , 0.1% concentrated hydrochloric acid), stirred at a constant speed for 15 min at 30 °C (300 r min -1 ), taken out, washed with distilled water; then put into 100 mL activation solution (solute (aqueous solution) is 0.03% PdCl 2 ), stirred at a constant speed for 15 min at 30°C (300 r min -1 ), removed and washed with di...

Embodiment 2

[0036] (1) Pre-plating treatment

[0037] Take 4 g of glass fiber and add it to the prepared 100 mL of hot lye (solute (aqueous solution): 2% (mass fraction) NaOH aqueous solution) and stir at a constant speed of 30 min at 75 °C (350 r min-1 ), wash and remove oil, take it out, wash and dry it with water, and then put it into 100 mL roughening solution (solute (aqueous solution): 2.5% (mass fraction) potassium dichromate, 10% concentrated sulfuric acid (98%)), Stir at a constant speed for 15 min at 30°C (300 rpm -1 ), taken out, washed with distilled water; then put into 100 mL sensitization solution (solute (aqueous solution): 4% (mass fraction) SnCl 2 , 0.3% concentrated hydrochloric acid), stirred at a constant speed for 15 min at 30 °C (300 r min -1 ), take it out, wash with distilled water; then put it into 100 mL activation solution (solute (aqueous solution) is: 0.04% PdCl 2 ), stirred at a constant speed for 15 min at 30°C (300 r min -1 ), removed and washed with di...

Embodiment 3

[0043] (1) Pre-plating treatment

[0044] Take 10 g of glass fiber and add it to the prepared 100 mL of hot lye (solute (aqueous solution): 3% (mass fraction) NaOH aqueous solution) and stir at a constant speed of 30 min at 75 °C (350 r min -1 ), wash and remove oil, take it out, wash and dry it with water, then put it into 100 mL roughening solution (solute (aqueous solution) is: 5% (mass fraction) potassium dichromate, 5% concentrated sulfuric acid (98%)), Stir at a constant speed for 15 min at 30°C (300 rpm -1 ), taken out, washed with distilled water; then put into 100 mL sensitization solution (solute (aqueous solution): 3% (mass fraction) SnCl 2 , 0.4% concentrated hydrochloric acid), stirred at a constant speed for 15 min at 30 °C (300 r min -1 ), taken out, washed with distilled water; then put into 100 mL activation solution (solute (aqueous solution) is 0.005% PdCl 2 ), stirred at a constant speed for 15 min at 30°C (300 r min -1 ), removed and washed with distil...

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Abstract

The invention discloses a preparation method for silver-plated glass fibers and conductive rubber prepared from the silver-plated glass fibers, belonging to the technical field of preparation of conductive rubber. The invention aims to overcome the problems that conventional metallic conductive filling materials have great density, cost a lot and are incapable of meeting developmental demands of the modern electronic industry. According to the invention, a certain amount of glass fibers are respectively placed in hot alkali liquor, a roughing solution, a sensitizing solution and an activatingsolution for treatment before plating and then is placed in a silver plating solution so as to obtain silver-plated glass fibers with excellent conductivity; the obtained silver-plated glass fibers are added into a silicone rubber matrix, and conductive rubber is prepared by using a conventional preparation method for rubber. The conductive rubber prepared in the invention has volume resistivity maximally reduced to 0.005 omega.cm, tensile strength no less than 2.64 MPa, Shore hardness no more than 90 and elongation at break no less than 30%.

Description

technical field [0001] The invention relates to conductive rubber and silver-plated glass fiber used for preparing conductive rubber, in particular to a preparation method of silver-plated glass fiber and conductive rubber prepared by using the silver-plated glass fiber. Background technique [0002] In recent years, conductive rubber has been widely used in electromagnetic shielding materials, antistatic materials, positive temperature coefficient materials, and pressure-sensitive materials in contact control switches. Its application fields have spread throughout automobiles, aircraft, electrical appliances, computers, national defense, military, Aerospace, construction, medical care, food and other industries that are closely related to people's lives play a very important role in the growth of the national economy. Among them, as far as the conductive rubber for electromagnetic shielding materials is concerned, it plays an irreplaceable role in the field of electromagnet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/46C08L83/04C08K9/02C08K7/14
Inventor 赵贵哲陈慧玉陈闯刘亚青
Owner ZHONGBEI UNIV