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Formula of oil-resistant rubber

A technology of oil-resistant rubber and formula, which is applied in the field of rubber, can solve the problems of poor deformation resistance, oil resistance can only meet the requirements, etc., and achieve good air tightness and deformation resistance

Inactive Publication Date: 2014-01-08
无为县大江橡塑制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The rubber used in the oil cylinder seals used in normal automobiles has certain requirements on the oil resistance, heat resistance and air tightness of the rubber. The existing rubber often fails to meet the requirements, and its oil resistance can only reach 10%, and it is resistant to deformation. poor ability

Method used

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  • Formula of oil-resistant rubber
  • Formula of oil-resistant rubber
  • Formula of oil-resistant rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: a kind of formula of oil-resistant rubber, containing the following substances by weight:

[0011]

[0012] In order to enhance the oil resistance, 6.5 parts by weight of acrylonitrile in NBR can also be added to the rubber.

Embodiment 2

[0013] Embodiment 2: a kind of formula of oil-resistant rubber, containing the following substances by weight:

[0014]

[0015] In order to enhance the oil resistance, 6.1 parts by weight of acrylonitrile in NBR can also be added to the rubber.

Embodiment 3

[0016] Embodiment 3: a kind of formula of oil-resistant rubber, containing the following substances by weight:

[0017]

[0018]

[0019] In order to enhance the oil resistance, 7.5 parts by weight of acrylonitrile in NBR can also be added to the rubber.

[0020] The oil resistance performance (oil absorption expansion ratio) of Example 1 is 6.8, heat resistance (anti-aging coefficient 0.8), air tightness 2.8m 2 / s Pa, deformation resistance 70KN m; oil resistance (oil absorption expansion rate) of Example 2 is 6.95, heat resistance (anti-aging coefficient 0.73), air tightness 3.8m 2 / s·Pa, anti-deformation ability 75KN·m; oil resistance (oil absorption expansion rate) of Example 3 is 6.5, heat resistance (anti-aging coefficient 0.6), air tightness 3.1m 2 / s·Pa, anti-deformation capacity 80KN·m.

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Abstract

A formula of oil-resistant rubber comprises the following components: fluorosilicone rubber, cis-1,4-polybutadiene rubber, sulphur, barium carbonate, compacted graphite carbon, silica, aliphatic hydrocarbon, cyanosilicone gum and an antioxidant A. Acrylonitrile contained in NBR can be added into the rubber for increasing the oil resistance, and the weight ratio of acrylonitrile to cyanosilicone gum is 1:2. Compared with the prior art, the oil-resistant rubber produced by using the rubber formula has oil resistance of less than 7%, and has good heat resistance, gas tightness and anti-deformation capability.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a formula of oil-resistant rubber. Background technique [0002] The rubber used in the oil cylinder seals used in normal automobiles has certain requirements on the oil resistance, heat resistance and air tightness of the rubber. The existing rubber often fails to meet the requirements, and its oil resistance can only reach 10%, and it is resistant to deformation. poor ability. Contents of the invention [0003] The technical problem to be solved by the invention is to provide oil-resistant rubber with an oil-resistant performance of 7.9%. [0004] The technical scheme for solving technical problems of the present invention is: a formula of oil-resistant rubber, containing the following substances by weight: [0005] [0006] In order to enhance the oil resistance, acrylonitrile in NBR can also be added to the rubber, and the weight ratio of it to nitrile silicone rubber i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/08C08L9/00C08K13/02C08K3/06C08K3/26C08K3/04C08K3/36C08K5/01
Inventor 王超
Owner 无为县大江橡塑制品有限公司
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