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High temperature vulcanization modified silicone rubber and production method thereof

A technology of high-temperature vulcanization and modification of silicon, applied in the field of polymer materials, can solve problems such as corrosion resistance that have not been seen, and achieve the effect of good UV resistance and acid corrosion resistance.

Active Publication Date: 2015-10-28
JIANGSU SOUTH PORCELAIN INSULATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no silicone rubber material that is corrosion-resistant and can effectively prevent or resist ultraviolet erosion on the market.

Method used

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  • High temperature vulcanization modified silicone rubber and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: A high-temperature vulcanized modified silicone rubber, including the following substrates and other raw materials, wherein the substrates include 110-1, 110-2, 110-3; the above-mentioned 110-1: 110-2: 110-3 The weight ratio is 1:3:2. The molecular weights of 110-1, 110-2, and 110-3 are all above 600,000. 110-1, 110-2, and 110-3 are three specifications of methyl vinyl silicone rubber.

[0020] Other raw materials include: fumed silica, aluminum hydroxide micropowder, γ-trifluoropropylmethylpolysiloxane, silicone oil, silane, masterbatch, zinc oxide, triethanolamine and bis-pentasulfurizing agent; among them,

[0021] The addition of fumed silica is 35% of the total weight of the substrate; the fumed silica used is the high specific surface area fumed silica mM-5 model imported by Cabot Corporation of the United States, and then six Methyldisilazane is sprayed on the above-mentioned fumed silica and stirred evenly, so that most of the hydroxyl groups on the ...

Embodiment 2

[0043] In Example 2, the weight ratio of the three specifications 110-1, 110-2, and 110-3 in the methyl vinyl silicone rubber is 1:2:2.

Embodiment 3

[0044] In Example 3, the weight ratio of the three specifications 110-1, 110-2, and 110-3 in the methyl vinyl silicone rubber is 2:5:3.

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Abstract

The invention discloses high-temperature vulcanized modified silicon rubber which is mainly prepared from the following base materials: 110-1 methyl vinyl silicone rubber, 110-2 methyl vinyl silicone rubber and 110-3 methyl vinyl silicone rubber at the weight ratio of (1-2):(2-5):(1-3). The high-temperature vulcanized modified silicon rubber has the advantages of all excellent property of high-temperature vulcanized silicon rubber and better ultraviolet resistant property and acid etching resistant property. According to the IEC62217 standard, after the high-temperature vulcanized modified silicon rubber is aged through ultraviolet light (xenon-arc method) for 1500 hours, the material is intact; after the high-temperature vulcanized modified silicon rubber is soaked in a 65% nitric acid solution for 45 minutes, the material is intact.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a high-temperature vulcanized modified silicone rubber and a production method thereof. 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. With the rise and development of material technology, the types of insulators are also prosperous. According to different materials, insulators are divided into porcelain insulators, glass insulators, composite insulators and hybrid insulators. Silicone rubber is widely used in insulators as external insulating materials because of its excellent heat resistance, cold resistance, dielectric properties, ozone resistance, water repellency and atmospheric aging resistance. [0003] With the industrialization of the world economy, chlorine and bromine-containing refrigerants, foaming agents, and medical agents are used ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/07C08L83/06C08L83/04C08L83/05C08K13/06C08K9/06C08K3/36C08K3/22C08K5/17C08K5/5435C08K5/5425B29B7/00
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
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