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Method for preparing conductive glass fibers from waste glass fibers

A conductive glass fiber and glass fiber technology, applied in the field of glass fiber, can solve problems such as explosion and fire, and achieve the effect of promoting energy saving and emission reduction, low equipment cost and realizing environmental benefits

Inactive Publication Date: 2017-08-22
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Glass fiber dust filter bags are widely used in high-temperature flue gas filtration and dust removal in various industrial furnaces such as chemical industry, steel, smelting, carbon black, power generation, cement, etc.; they have the advantages of high temperature resistance, corrosion resistance, stable size, small shrinkage rate, and high strength. However, in the process of high-temperature filtration and dust removal, the violent friction of industrial dust erupting at high speed produces a large amount of static electricity accumulation. If it encounters factors such as static discharge sparks or external ignition, it will easily lead to explosions and fires.

Method used

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  • Method for preparing conductive glass fibers from waste glass fibers
  • Method for preparing conductive glass fibers from waste glass fibers
  • Method for preparing conductive glass fibers from waste glass fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1 Copper plating on the surface of recycled glass fiber waste 。

[0023] Put the glass fiber waste into a glass tank of the corresponding size, add concentrated sulfuric acid, alkylphenol polyoxyethylene ether mixture (8:2), immerse the glass fiber, soak for 2 hours at room temperature or under agitation, and then filter Or take out the glass fiber by centrifugation, wash it with clean water for several times until it is clean, dry it naturally or heat it to get the regenerated glass fiber, take 2.00 g of the regenerated glass fiber and put it in a beaker, add 3.00 g of zinc powder and stir for 2 min to make the glass fiber The fiber is in full contact with the zinc powder, and then four representative additives A (alkylbenzene sulfonate), B (alkyl sulfonate), C (lauryl fatty acid salt), D (decyl fatty acid salt) are added respectively. Dialkyl fatty acid salt+sodium acetate), after stirring for 2min, add 250 ml of 5.00% copper sulfate solution, and stir at ...

Embodiment 2

[0024] Example 2 Nickel plating on the surface of glass fiber waste 。

[0025] Put the waste glass fiber felt into a glass tank of the corresponding size, add a mixture of concentrated sulfuric acid, petroleum ether and polyethylene glycol 400 (7:2:1) to immerse the glass fiber, and soak for 1 hour under normal temperature static or stirring conditions Finally, filter or centrifuge to take out the glass fiber, wash it with clean water for several times until it is clean, dry it naturally or heat it to obtain the regenerated glass fiber, and immerse the glass fiber in the roughening solution ((NH 4 ) 2 S 2 o 8 200g / L;H 2 SO 4 100mL) at room temperature for 20min, then soak the roughened glass fibers in the sensitizing solution (SnCl 2 20g / L; HCl 40mL / L) and activation solution (PbCl2 0.25g / L; HCl2.5mL / L) were stirred at room temperature for 10min, and all pretreatment processes were carried out under ultrasonic vibration conditions to ensure their uniformity. as N...

Embodiment 3

[0026] Example 3 Silver-plated surface of glass fiber waste 。

[0027] Put the glass fiber cloth into a glass tank of the corresponding size, add the mixture of concentrated sulfuric acid, fatty alcohol polyoxyethylene ether and dioxane (4:5:1), immerse the glass fiber cloth, stand at room temperature or stir After soaking under water for 2 hours, filter or centrifuge to take out the glass fiber, wash it with clean water several times until it is clean, dry it naturally or heat it to get the regenerated glass fiber, and soak the glass fiber in the roughening solution ((NH 4 ) 2 S 2 o 8 200g / L;H 2 SO 4 100mL) at room temperature for 20min, then soak the roughened glass fibers in the sensitizing solution (SnCl 2 20g / L; HCl 40mL / L) and activation solution (PbCl 2 0.25g / L; HCl2.5mL / L) were ultrasonically stirred at room temperature for 10min. Prepared pre-treated glass fibers. To the prepared AgNO 3 Slowly add NH to the solution 3 .H 2 O, a precipitate is formed...

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Abstract

The invention relates to a method for regenerating glass fibers from waste glass fibers. The method realizes comprehensive utilization of waste glass fibers and preparation of low-cost conductive glass fibers. The method comprises soaking glass fibers through a highly permeable degradation liquid, removing a glass fiber surface impregnating compound at the normal temperature under normal pressure to obtain regenerated glass fibers, and carrying out sensitization, activation, reduction and chemical plating, metal electroplating or conductive polymer coating to obtain conductive glass fibers. The method has simple processes, is free of preprocessing, saves crushing and smashing costs, is free of heating and has almost zero energy consumption. The regenerated glass fiber or filler is not corroded so that fiber damage is small, the surface is treated cleanly and completely, and high value-added glass fibers are prepared.

Description

technical field [0001] The invention relates to the field of glass fiber and its product waste recycling, in particular to a method for preparing conductive glass fiber from glass fiber fiber waste, which is to soak glass fiber or its product in a osmotic degradation desizing agent to make the glass The fiber surface sizing agent is swollen and peeled off, and the glass fiber, filler or its braid is separated, and the regenerated glass fiber is obtained after washing and drying. The regenerated glass fiber can be electroplated or electroless metal-plated (gold, silver, copper, cadmium, aluminum) technology Prepare conductive glass fibers. The application field involves the field of glass fiber reinforced and antistatic composite materials. Background technique [0002] Glass fiber is a new type of inorganic non-metallic material with excellent performance. It has excellent properties such as non-combustibility, high temperature resistance, electrical insulation, high tensil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/66C03C25/46C03C25/28C03C25/32
CPCC03C25/28C03C25/32C03C25/46C03C25/66
Inventor 赵剑英何锐高彩燕明立成刘会陈东亮
Owner SHANDONG UNIV OF TECH
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