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Coupling agent for bonding high-temperature vulcanization modified silicone rubber and ceramic glaze and preparation method of coupling agent

A technology of high-temperature vulcanization and preparation method, which is applied in the direction of adhesives, etc., to achieve the effect of excellent electrical performance

Active Publication Date: 2014-09-03
JIANGSU SOUTH PORCELAIN INSULATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The production and testing of rod-type porcelain composite insulators have not been reported. In order to manufacture high-quality rod-type porcelain composite insulators, the bonding quality of the above-mentioned macroscopic interfaces must be guaranteed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: A coupling agent for bonding high-temperature vulcanized modified silicone rubber and ceramic glaze, mainly made of the following raw materials in parts by weight: 1 part of vinyltriacetylsilane, butadiene triethoxy 5 parts of base silane, 0.1 part of vinyl silicone oil, 35 parts of diluent, and 0.05 parts of active agent. Among them, the weight ratio of vinyltriacetylsilane and butadienyltriethoxysilane is 1:5; the diluent is absolute ethanol, and the volume percentage of absolute alcohol is not less than 99.5%; the active agent is dibutyl Tin dilaurate.

[0022] The preparation method of the coupling agent for bonding the above-mentioned high-temperature vulcanized modified silicone rubber and ceramic glaze, the method comprises the following steps:

[0023] 1) Weigh each raw material according to the weight and number of each raw material, and set aside;

[0024] 2) Put absolute ethanol in a 1000ml volumetric flask, then put vinyl silicone oil in the vol...

Embodiment 2

[0030] Example 2: basically the same as Example 1, the difference is the formula of the coupling agent, specifically as follows: 2 parts of vinyltriacetylsilane, 10 parts of butadienyl triethoxysilane, 0.2 part of vinyl silicone oil , 38 parts of diluent, 0.04 part of active agent.

Embodiment 3

[0031] Embodiment 3: basically the same as Example 1, the difference is the formula of the coupling agent, specifically as follows: 1.5 parts of vinyltriacetylsilane, 7.5 parts of butadienyl triethoxysilane, 0.13 parts of vinyl silicone oil , 33 parts of diluent, 0.03 part of active agent.

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PUM

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Abstract

The invention discloses a coupling agent for bonding high-temperature vulcanization modified silicone rubber and ceramic glaze and a preparation method of the coupling agent. The coupling agent mainly comprises the following raw materials in parts by weight: 1-2 parts of vinyl triacetyl silane, 5-10 parts of butadienyl triethoxy silane, 0.1-0.2 part of vinyl silicone oil, 33-38 parts of a diluent and 0.03-0.05 part of an active agent. The coupling agent disclosed by the invention can be used for ensuring the bonding quality of rubber and ceramic glaze and the excellent overall electrical performance of a ceramic composite insulator; by an interface coupling technology of the high-temperature vulcanization modified silicone rubber and the ceramic glaze, the adhesive force of the interfaces of the high-temperature vulcanization modified silicone rubber and the ceramic glaze is 7kN / m stronger than the mechanical tear strength of the silicone rubber; and after a whole product is boiled for 42 hours in saline water, the whole product can resist impact of steep waves with gradient being no less than 1500kV / microsecond for + / - 25 times.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a formula and a preparation method of a coupling agent for bonding high-temperature vulcanized modified silicone rubber and ceramic glaze. Background technique [0002] Insulators are a large amount of components in the power grid, and their quality determines the safety and reliability of the power grid operation. Rod porcelain composite insulators for electrified railways are made of high-temperature vulcanized modified silicone rubber as the outer insulating sheath sheath, and fine industrial alumina high-strength ceramics as the inner insulating mandrel. A new type of hybrid insulator for accessories. For this new hybrid insulator, the quality of the macroscopic interface determines the overall electromechanical performance of the insulator, that is, the quality of the interface between the ceramic core rod and the high-temperature vulcanized modified silicone rubber dete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/07C09J11/00
Inventor 杨志峰王根水王士维周志勇刘少华张海兵
Owner JIANGSU SOUTH PORCELAIN INSULATOR CO LTD