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Rubber compound for ultrahigh voltage post insulator and preparation method thereof

A composite insulator and ultra-high voltage technology, applied in the field of rubber material manufacturing, can solve the problems of easy scorch of rubber materials, shed tearing, air bubbles, etc., and achieve the effect of excellent mold release and long scorch period

Inactive Publication Date: 2019-02-22
JIANGSU SHUANGHUI POWER DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of easy scorching of the rubber material, air bubbles, lack of glue, difficulty in demoulding, and tearing of the shed during the injection molding process of UHV post composite insulators by designing a brand-new silicone rubber umbrella cover material formula and its preparation method. cracking and other process problems, and ensure that the physical, mechanical and electrical properties of the vulcanized rubber meet the requirements of relevant standards

Method used

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  • Rubber compound for ultrahigh voltage post insulator and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0052] A compound rubber formula for UHV pillar composite insulators and its preparation method, the preparation method is as follows: put 120 parts of methyl vinyl silicone rubber with a vinyl content of 0.08% into a vacuum kneader, and put 0.4 parts of stearic acid , 0.5 parts of boric acid, 0.5 parts of vinyltrimethoxysilane, 40 parts of white carbon black are added in 4 times, and 10 parts of hydroxyl silicone oil are added in 4 times. The material must form a group before each new feeding. After the last feed into agglomerates, heat up until the rubber material reaches 155±5°C, heat-treat for 60 minutes, discharge and park for more than 24 hours to obtain silica rubber; put 80 parts of methyl ethylene with a vinyl content of 0.16% into the vacuum kneader Based silicone rubber, put 2 parts of zinc oxide, 0.4 parts of stearic acid, 0.5 parts of vinyltrimethoxysilane, 70 parts of aluminum hydroxide with a median particle size of 1-2 μm and 70 parts of hydrogen with a median p...

Embodiment 2

[0055]A compound rubber formula for UHV pillar composite insulators and its preparation method, the preparation method is as follows: put 130 parts of methyl vinyl silicone rubber with a vinyl content of 0.08% into a vacuum kneader, and put 0.5 parts of stearic acid , 0.6 parts of boric acid, 0.6 parts of vinyltrimethoxysilane, 50 parts of white carbon black are added in 4 times, and 11 parts of hydroxy silicone oil are put in in 4 times. The material must be agglomerated before each new feeding. After the last feed into agglomerates, heat up until the rubber material reaches 155±5°C, heat treatment for 60 minutes, discharge and park for more than 24 hours to obtain silica rubber; put 90 parts of methyl ethylene with a vinyl content of 0.16% into the vacuum kneader Base silicone rubber, put 4 parts of zinc oxide, 0.5 parts of stearic acid, 0.6 parts of vinyltrimethoxysilane, 110 parts of aluminum hydroxide with a median particle size of 1-2 μm and 110 parts of hydrogen with a m...

Embodiment 3

[0058] A compound rubber formula for UHV pillar composite insulators and its preparation method, the preparation method is as follows: put 140 parts of methyl vinyl silicone rubber with a vinyl content of 0.08% into a vacuum kneader, and put 0.6 parts of stearic acid , 0.7 parts of boric acid, 0.7 parts of vinyltrimethoxysilane, 60 parts of white carbon black are added in 4 times, and 10 parts of hydroxyl silicone oil are put in in 4 times. The material must form a group before each new feeding. After the last feed into agglomerates, heat up until the rubber material reaches 155±5°C, heat treatment for 60 minutes, discharge and park for more than 24 hours to obtain silica rubber; put 100 parts of methyl ethylene with a vinyl content of 0.16% into the vacuum kneader Based silicone rubber, put 6 parts of zinc oxide, 0.6 parts of stearic acid, 0.7 parts of vinyltrimethoxysilane, 110 parts of aluminum hydroxide with a median particle size of 1-2 μm and 110 parts of hydrogen with a ...

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Abstract

The invention relates to a rubber compound for an ultrahigh voltage post insulator and a preparation method thereof, aims at solving the technical problems of burns, bubbles, hungry joint, demold difficulty, umbrella skirt tear and the like of rubber materials in the process of injecting and molding an ultrahigh voltage post insulator by designing a brand new formula of a silicon rubber umbrella casing material and a preparation method thereof, and the physical mechanical performance and electrical performance of the rubber material can meet the requirement of related standards after being vulcanized.

Description

technical field [0001] The invention relates to the preparation of a high-temperature vulcanized silicone rubber material, in particular to a compounded rubber formula for an outer insulating umbrella cover of an UHV post composite insulator and a preparation method thereof, belonging to the field of rubber material manufacturing. Background technique [0002] The rubber compound prepared on the basis of methyl vinyl silicone rubber has good physical and electrical properties, aging resistance, water repellency and water repellency, and processing performance. Form composite insulators have been used for many years. At present, the formulations of composite insulator sheath materials have the characteristics of short coking and fast vulcanization, so as to improve production efficiency and reduce production costs. UHV pillar composite insulator is a new structure developed rapidly in the past two years. Its core diameter reaches 280mm and 315mm, which is much higher than the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/04C08K13/02C08K3/36C08K5/09C08K5/5425C08K3/38C08K3/22
CPCC08K2003/2227C08K2003/2296C08K2003/387C08K2201/003C08K2201/006C08K2201/014C08L83/04C08L2205/025C08L2205/035C08K13/02C08K3/36C08K5/09C08K5/5425C08K3/38C08K3/22
Inventor 尹骏刚王慧马钢陈小军马云泽冉万宏其他发明人请求不公开姓名
Owner JIANGSU SHUANGHUI POWER DEV
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