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A kind of electrical insulation rubber and its preparation method

A technology of insulating rubber and electric power, which is applied in the production field of electric insulating rubber and electric insulating rubber, which can solve the problems of insufficient insulation of insulating rubber, harm to human body and environment, complicated manufacturing process, etc., and achieve excellent electrical and physical properties, The effect of fast vulcanization speed and stable production process

Active Publication Date: 2016-04-13
武汉科能电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the insulating rubber currently on the market has problems such as insufficient insulation and easy corrosion, and the manufacturing process is complicated, which is harmful to the human body and the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A power insulating rubber composed of the following components: Dow EPDM4520100Kg, calcined kaolin 30Kg, rubber vulcanization accelerator PZ0.1Kg, stearic acid 2Kg, kinematic viscosity 10mm2 / s paraffin oil 30Kg, indirect method zinc oxide 8Kg , Rubber accelerator CZ0.3Kg, liquid EPDM5Kg, fumed white carbon black 25Kg, silane coupling agent 0.5Kg, sulfur 2Kg, rubber accelerator DM1Kg.

[0029] Its production method

[0030] 1) Weigh each component;

[0031] 2) Sectional mixing

[0032] First, add Dow EPDM4520, liquid EPDM, vapor-phase white carbon black, calcined kaolin, 50% by mass paraffin oil, silane coupling agent to the internal mixer, at 55~65℃, pressure 0.5~0.8Mpa, banbury After 3 minutes, add zinc oxide, stearic acid and paraffin oil at an air pressure of 0.5-0.8Mpa, 75-85℃ for another 10 minutes and then discharge the glue.

[0033] 3) Sulfurization and mixing operation of open mill to produce chips

[0034] Put the rubber discharged from the internal mixer into the open...

Embodiment 2

[0037] A power insulating rubber composed of the following components: Dow EPDM4520100Kg, calcined kaolin 20Kg, rubber vulcanization accelerator PZ0.3Kg, stearic acid 1Kg, kinematic viscosity 15mm2 / s paraffin oil 40Kg, indirect zinc oxide 5Kg , Rubber accelerator CZ0.5Kg, fumed white carbon black 15Kg, Lion Chemical T675Kg, silane coupling agent 0.5Kg, sulfur 2Kg, rubber accelerator DM1Kg.

[0038] The preparation method is the same as in Example 1

Embodiment 3

[0040] A power insulating rubber composed of the following components: Dow EPDM4520100Kg, calcined kaolin 24Kg, rubber vulcanization accelerator PZ0.3Kg, stearic acid 1.5Kg, kinematic viscosity 7mm2 / s paraffin oil 35Kg, indirect zinc oxide 7Kg, rubber accelerator CZ0.3g, fumed white carbon black 15Kg, liquid EPDM10Kg, silane coupling agent 1.5Kg, sulfur 1.5Kg, rubber accelerator DM0.5Kg.

[0041] The preparation method is the same as in Example 2

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Abstract

The invention belongs to the technical field of rubber, discloses electric insulating rubber and a fabrication method thereof, and aims at providing electric insulating rubber which is good in insulativity and simple in fabrication method. The electric insulating rubber adopts the technical scheme that the electric insulating rubber comprises the following components in parts by weight: 100 parts of EPDM (Ethylene-Propylene-Diene Monomer), 20-30 parts of calcined kaolin, 0.1-0.3 parts of thiofide PZ, 1-2 parts of stearic acid, 30-40 parts of paraffin oil, 5-8 parts of indirect-method zinc oxide, 0.3-0.5 parts of rubber accelerator CZ, 5 parts of liquid EPDM, 15-25 parts of fumed silica, 0.5-1.5 parts of silane coupling agent, 1-2 parts of sulfur and 1-2 parts of rubber accelerator DM. The fabrication method of the electric insulating rubber comprises the following steps of 1) weighing the components, 2) conducting internal mixing by sections, 3) adding sulfur to an open mill for mixing, and outputting sheet rubber, and 4) placing for 4-8h to allow rubber materials to be more uniform.

Description

Technical field [0001] The purpose of the present invention is to provide a rubber, specifically, a power insulating rubber. The present invention also discloses a manufacturing method of the power insulating rubber, which belongs to the technical field of rubber. Background technique [0002] At present, the insulating rubber on the market is mainly ethylene propylene rubber. The main chain of EPDM rubber is composed of chemically stable saturated hydrocarbons, and only contains unsaturated double bonds in the side chain, so it is basically a kind of saturated rubber. Since there are no polar substituents in the molecular structure and the cohesive energy between molecules is low, the molecular chain can maintain flexibility in a wide temperature range. It can be used as tire sidewalls, rubber strips and inner tubes, as well as automotive parts, as well as wire, cable sheathing and high-voltage and ultra-high-voltage insulation materials. It can also manufacture light-colored p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08K13/02C08K3/34C08K5/09C08K5/01C08K3/22C08K3/36C08K3/06H01B3/28
Inventor 柳彬谌保华
Owner 武汉科能电气有限公司
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