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Insulated oil-resistant sealing rubber and preparation method thereof

A sealing rubber and oil-resistant technology, applied in the field of rubber composite materials, can solve the problems of low strength, poor wear resistance, unsatisfactory sealing effect, etc., achieve good compatibility, good aging resistance and oil resistance, reduce toxic side effects and The effects of environmental pollution

Inactive Publication Date: 2016-07-13
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the various sealing materials currently available have some limitations in the range of use objects, and there are defects such as unsatisfactory sealing effect, poor wear resistance, and low strength. Therefore, it is necessary to develop a sealing material with good comprehensive performance. Oil-resistant rubber seal materials for transformers

Method used

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  • Insulated oil-resistant sealing rubber and preparation method thereof
  • Insulated oil-resistant sealing rubber and preparation method thereof
  • Insulated oil-resistant sealing rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 80 parts of nitrile rubber (3445F), 20 parts of neoprene rubber (A90), 1.2 parts of accelerator CZ, 0.1 part of accelerator TMTD, 0.1 parts of accelerator NA-22, 2 parts of sulfur, 0.8 parts of magnesium oxide, zinc oxide 5 parts, 50 parts of N330 carbon black, 1.5 parts of antioxidant 4020, 1.5 parts of antioxidant RD, 2.5 parts of stearic acid, and 12 parts of plasticizer DOP.

[0023] The preparation of the insulating and oil-resistant rubber: Add nitrile rubber (3445F) and neoprene (A90) into the internal mixer, mix at room temperature for 3-5 minutes; then add N330 carbon black and continue mixing for 4-6 minutes, and then add Accelerator CZ, Accelerator TMTD, Accelerator NA-22, Sulfur, Magnesium Oxide, Zinc Oxide, Antiaging Agent 4020, Antiaging Agent RD, knead for 6-8min; finally add stearic acid and plasticizer and knead for 6-8min , to obtain the mixed rubber material; after the mixed rubber material is parked for 24 hours, it is vulcanized, and the obtained pr...

Embodiment 2

[0025] The difference from Example 1 is:

[0026] 60 parts of nitrile rubber (3445F), 40 parts of neoprene rubber (A90), 0.9 parts of accelerator CZ, 0.2 parts of accelerator TMTD, 0.2 parts of accelerator NA-22, 1.5 parts of sulfur, 1.6 parts of magnesium oxide, zinc oxide 5 parts, 50 parts of N330 carbon black, 1.5 parts of antioxidant 4020, 1.5 parts of antioxidant RD, 2.5 parts of stearic acid, and 12 parts of plasticizer DOP.

Embodiment 3

[0028] The difference from Example 1 is:

[0029] 40 parts of nitrile rubber (3445F), 60 parts of neoprene rubber (A90), 0.6 parts of accelerator CZ, 0.3 parts of accelerator TMTD, 0.3 parts of accelerator NA-22, 1 part of sulfur, 2.4 parts of magnesium oxide, zinc oxide 5 parts, 50 parts of N330 carbon black, 1.5 parts of antioxidant 4020, 1.5 parts of antioxidant RD, 2.5 parts of stearic acid, and 12 parts of plasticizer DOP.

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PUM

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Abstract

The invention discloses insulated oil-resistant sealing rubber. The insulated oil-resistant sealing rubber is prepared from the following raw materials in parts by mass: 40-80 parts of nitrile rubber, 20-60 parts of chloroprene rubber, 1-1.5 parts of an accelerant, 0.5-2 parts of sulfur, 0.8-3.2 parts of magnesium oxide, 4-5 parts of zinc oxide, 45-55 parts of carbon black, 2-4 parts of an anti-ageing agent, 2-3 parts of stearic acid and 10-15 parts of a plasticizer. The invention further discloses a preparation method for the rubber. The rubber has good processing performance, ageing resistance and oil resistance.

Description

technical field [0001] The invention relates to a rubber composite material, in particular to an insulating and oil-resistant rubber. At the same time, the invention also relates to a preparation method of the insulating and oil-resistant rubber. technical background [0002] Gasket is a material used for sealing inside machinery, equipment, pipelines, etc. At present, most of the gaskets used are rubber gaskets, which have good performances such as high temperature resistance, ozone resistance, natural aging resistance, vacuum resistance, fuel oil resistance, lubricating oil resistance, strong oxidant resistance, chemical resistance and electrical insulation, and are widely used. For defense industry and civilian industry. However, the existing rubber gasket has unsatisfactory sealing effect, poor wear resistance and low strength, which can no longer meet the actual requirements. The oil leakage problem of power equipment caused by the aging of sealing rubber is also on ...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L11/00C08K13/02C08K3/06C08K3/22C08K3/04C08K5/09
CPCC08L9/02C08K2201/014C08L11/00C08K13/02C08K3/06C08K2003/222C08K2003/2296C08K3/04C08K5/09
Inventor 钱艺华熊壮龚淑玲罗运柏赵耀洪张丽苏伟陈天生范圣平
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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