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A processing method of composite insulator silicone rubber and the application of composite insulator silicone rubber in flame-retardant composite materials

A technology of flame-retardant composite materials and composite insulators, which is applied in the field of composite insulators, can solve problems such as inapplicability, and achieve the effects of improving flame-retardant effects, simple and feasible acidification treatment methods, and good synergistic flame-retardant effects

Active Publication Date: 2019-02-15
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional waste silicone rubber recycling methods are not suitable for processing waste composite insulator silicone rubber

Method used

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  • A processing method of composite insulator silicone rubber and the application of composite insulator silicone rubber in flame-retardant composite materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A processing method of composite insulator silicone rubber:

[0035] Recycling waste composite insulator silicone rubber materials, washing and crushing to obtain waste composite insulator silicone rubber powder;

[0036] Weigh 100g of waste composite insulator silicone rubber powder into a 1000ml three-necked bottle, and add 300g of concentrated hydrochloric acid, mechanically stir at 500 rpm for 4 hours, then add deionized water and continue stirring for 2 hours;

[0037] Filter the waste composite insulator silicone rubber powder after stirring and wash with deionized water until the filtrate is neutral, then soak in ethanol for 1h, filter and place in a hood until the ethanol is completely volatilized, and finally vacuum dry at 80℃ for 4h , Get composite insulator silicone rubber powder.

Embodiment 2

[0039] A processing method of composite insulator silicone rubber:

[0040] Recycling waste composite insulator silicone rubber materials, washing and crushing to obtain waste composite insulator silicone rubber powder;

[0041] Weigh 100g of waste composite insulator silicone rubber powder, and add 400g of concentrated hydrochloric acid to the waste composite insulator silicone rubber powder, mechanically stir at 400 rpm for 5 hours, then add deionized water and continue stirring for 1.5 hours;

[0042] Filter the waste composite insulator silicone rubber powder after mixing and wash with deionized water until the filtrate is neutral, then soak in methanol for 0.8h, filter and place in a hood until methanol is completely volatilized, and finally vacuum dry at 60℃ 3.5h, get composite insulator silicone rubber powder.

Embodiment 3

[0044] A processing method of composite insulator silicone rubber:

[0045] Recycling waste composite insulator silicone rubber materials, washing and crushing to obtain waste composite insulator silicone rubber powder;

[0046] Weigh 100g of waste composite insulator silicone rubber powder, and add 350g of concentrated hydrochloric acid to the waste composite insulator silicone rubber powder, mechanically stir at 520 rpm for 5 hours, then add deionized water and continue stirring for 1.2 hours;

[0047] Filter the waste composite insulator silicone rubber powder after mixing and wash with deionized water until the filtrate is neutral, then soak in tetrahydrofuran for 1.2h, filter and place in a ventilated kitchen until the tetrahydrofuran is completely volatilized, and finally vacuum dry at 65°C 4.5h, get composite insulator silicone rubber powder.

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Abstract

The invention belongs to the technical field of composite insulators and relates to a composite insulator silicon rubber treatment method and application of the composite insulator silicon rubber to flame-retardant composite materials, in particular to an acidification treatment method of waste composite insulator silicon rubber. The treatment method includes steps: recovering waste composite insulator silicon rubber materials, and cleaning and grinding to obtain waste composite insulator silicon rubber powder; adding concentrated hydrochloric acid into the waste composite insulator silicon rubber powder, stirring for 3-6h, adding deionized water, and stirring for 0.5-3h; filtering and washing the stirred waste composite insulator silicon rubber powder, soaking in 0.1-1.5h in an organic solvent, filtering for drying until the organic solvent is volatilized completely, and finally performing vacuum drying for 3-5h at 60-100 DEG C to obtain composite insulator silicon rubber powder. By application of the acidified composite insulator silicon rubber powder to the flame-retardant composite materials, flame retardation effects of the flame-retardant composite materials can be improved remarkably.

Description

Technical field [0001] The invention relates to a processing method of composite insulator silicone rubber and the application of composite insulator silicone rubber in flame-retardant composite materials, in particular to an acidizing treatment method of waste composite insulator silicone rubber, belonging to the technical field of composite insulators. Background technique [0002] Composite insulator silicone rubber can be widely used in high-voltage power transmission lines and is suitable for areas with different pollution levels. It has the characteristics of light weight, small size, resistance to breakage, high tensile strength, and strong pollution performance. Silicone rubber insulators are mainly used in substations. They have good water repellency, aging resistance, tracking resistance and electrical corrosion resistance, high tensile strength and bending strength, high mechanical strength, and impact resistance. , Good shock and brittle fracture resistance, light wei...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08K3/16C08J11/04C08L67/04C08K3/32C08K5/053C08K5/3492C08K5/06
CPCC08J11/04C08J2383/04C08K3/16C08K2003/164C08L67/04C08L2201/02C08L2203/20C08L83/04C08K2003/323C08K5/053C08K5/34928C08K5/06Y02P20/143Y02W30/62
Inventor 曹宏伟张艳李晓楠方征平杜琳娟张彩霞张小霓
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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