High-temperature oil resistant nitrile rubber gasket and preparation method thereof

A rubber gasket and nitrile rubber technology, applied in the field of gaskets, can solve the problems of gaskets that cannot meet the requirements, gaskets are easy to burn, oil leakage, etc., and achieve excellent results, easy peeling, and good wear resistance

Inactive Publication Date: 2013-03-27
ANHUI RONGDA VALVE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] There are many places where oil seals are required in automobiles, and the conditions are relatively harsh. The gasket not only needs excellent oil resistance, such as poor oil resistance, it will inevitably leak oil after long-term

Method used

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  • High-temperature oil resistant nitrile rubber gasket and preparation method thereof

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Embodiment

[0015] A kind of high temperature resistant oil nitrile rubber sealing gasket, the weight parts of its raw materials are: 140 parts of nitrile rubber N41, 32 parts of active chlorine type acrylate rubber, 15 parts of SG-1 type polyvinyl chloride, triethyl citrate 4 parts, 3 parts of epoxy butyl oleate, 4 parts of n-butyl methacrylate, 1.5 parts of dibasic lead phosphite, 1.2 parts of sulfur, 5 parts of zinc oxide, 4 parts of zinc stearate, 1.5 parts of anti-aging agent RD 1.5 parts of anti-aging agent 4010NA, 2 parts of anti-aging agent NBC, 15 parts of fast extrusion carbon black N660, 64 parts of high wear-resistant carbon black N330, 1.6 parts of titanate coupling agent TMC-TTS, 1.8 parts of antioxidant 168 , 1.5 parts of N-2-(aminoethyl)-3-aminopropyltrimethoxysilane, 1.2 parts of silane coupling agent KH550, 30 parts of nano calcium carbonate, 1.5 parts of accelerator TMTD, 1.5 parts of accelerator TETD, 2 parts of agent CZ, 2 parts of modified tree ash.

[0016] Wherein...

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Abstract

The invention discloses a high-temperature oil resistant nitrile rubber gasket, comprising the following ingredients in parts by weight: 35-145 parts of nitrile rubber N411, 30-35 parts of active chloride type acrylic rubber, 10-15 parts of SG-1 type polyvinyl chloride, 2-5 parts of triethyl citrate, 3-5 parts of epoxy butyl oleate, and 2-5 parts of n-butyl methacrylate. The nitrile rubber gasket disclosed by the invention has excellent oil resistance and solvent resistance, also has excellent compressibility and rebound resilience and weak permanent deformation, does not soften and not decompose at high temperature, does not harden and not crack at low temperature, has excellent corrosion property, can work for a long time in mediums of acid, alkali, oil and the like, has small change in volume and rigidity and can adhered on metal surfaces, and has the following advantages of low friction coefficient, excellent wearing resistance, flexibility of being combined with a seal surface, excellent weather aging and ozone aging resistance, endurance, and the like.

Description

technical field [0001] The invention relates to a sealing gasket, in particular to a high temperature resistant oil nitrile rubber sealing gasket and a preparation method thereof. Background technique [0002] There are many places where oil seals are required in automobiles, and the conditions are relatively harsh. The gasket not only needs excellent oil resistance, such as poor oil resistance, it will inevitably leak oil after long-term use, but also needs to have good high temperature resistance. If the high temperature resistance is poor , the gasket is easy to burn. With the development of the automobile industry, the existing gaskets are far from meeting the requirements. Different degrees of oil leakage in domestic automobiles are closely related to gaskets. Therefore research and develop a kind of high temperature resistant oil sealing pad and become the task of top priority. Contents of the invention [0003] The object of the present invention is to provide a ...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L33/16C08L27/06C08K13/06C08K9/04C08K9/02C08K3/04C08K3/26C08K3/06C08K3/22C08K5/098
Inventor 胡光荣
Owner ANHUI RONGDA VALVE
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