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Oil resistant rubber

A technology of oil-resistant rubber and nitrile-butadiene rubber, applied in the field of oil-resistant rubber, can solve the problems of harshness, difficult to meet the conditions of use, and oil resistance gap.

Inactive Publication Date: 2015-05-13
柳州兴杜工业贸易有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the sealing system of fuel oil and hydraulic oil, a large amount of relatively cheap nitrile rubber is required, but the oil resistance of the existing nitrile rubber is still far behind that of fluororubber and fluorosilicone rubber, and it is difficult to meet the conditions of use. for demanding

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] By weight, the oil-resistant rubber components are as follows: 100 parts of nitrile rubber (Lanhua, NBR3604), hydroxyl silicone oil (Zhejiang Hengyecheng, viscosity 25°C: 20-30mm 2 / s, hydroxyl content ≥ 9.0%) 20 parts, zinc oxide 3 parts, stearic acid 3 parts, carbon black (N330) 6 parts, antioxidant D (N-phenyl-2-naphthylamine) 0.2 parts, accelerator 1 part of DTDM (4,4'-dithiodimorpholine), made into a sealing rubber pad according to the conventional process. Resistance to 3# kerosene (150℃×24h): 6.1% (volume change rate); resistance to 15# hydraulic oil (150℃×24h): 12% (volume change rate).

Embodiment 2

[0011] By weight, the components of oil-resistant rubber are as follows: 100 parts of nitrile rubber (Blue, N41), hydroxy silicone oil (Zhejiang Hengyecheng, viscosity 25°C: 20-30mm 2 / s, hydroxyl content ≥ 9.0%) 15 parts, zinc oxide 5 parts, stearic acid 1 part, carbon black (N330) 10 parts, antioxidant 2246 (2, 2'-methylenebis(4-methyl- 6-tert-butylphenol)) 0.3 parts, Accelerator M (2-mercaptobenzothiazole) 1.5 parts, made sealing rubber gasket according to the conventional process. Resistance to 3# kerosene (150℃×24h): 6.3% (volume change rate); resistance to 15# hydraulic oil (150℃×24h): 11.5% (volume change rate).

Embodiment 3

[0013] By weight, the oil-resistant rubber components are as follows: 100 parts of nitrile rubber (Lanhua, NBR3604), hydroxyl silicone oil (Zhejiang Hengyecheng, viscosity 25°C: 20-30mm 2 / s, hydroxyl content ≥ 9.0%) 10 parts, zinc oxide 7 parts, stearic acid 2 parts, carbon black (N330) 5 parts, antioxidant D (N-phenyl-2-naphthylamine) 0.2 parts, accelerator 1 part of DTDM (4,4'-dithiodimorpholine), made into a sealing rubber pad according to the conventional process. Resistance to 3# kerosene (150℃×24h): 6.0% (volume change rate); resistance to 15# hydraulic oil (150℃×24h): 12.3% (volume change rate).

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PUM

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Abstract

The invention discloses an oil resistant rubber which comprises the following components in parts by weight: 100 parts of a nitrile rubber, 10-20 parts of hydroxyl silicone oil, 3-7 parts of zinc oxide, 1-3 parts of stearic acid, 5-10 parts of carbon black, 0.2-0.5 part of an anti-aging agent and 1-1.5 part of an accelerant. The oil resistant rubber provided by the invention has the advantage of remarkably improving the oil resistance of the conventional nitrile rubber.

Description

technical field [0001] The invention relates to an oil-resistant rubber. Background technique [0002] In the sealing system of fuel oil and hydraulic oil, a large amount of relatively cheap nitrile rubber is required, but the oil resistance of the existing nitrile rubber is still far behind that of fluororubber and fluorosilicone rubber, and it is difficult to meet the conditions of use. for demanding requirements. Contents of the invention [0003] The technical problem to be solved by the invention is to overcome the existing defects and provide an oil-resistant rubber. [0004] In order to solve the problems of the technologies described above, the present invention provides the following technical solutions: [0005] An oil-resistant rubber, in parts by weight, comprising the following components: [0006] 100 parts of nitrile rubber; 10-20 parts of hydroxyl silicone oil; 3-7 parts of zinc oxide; 1-3 parts of stearic acid; 5-10 parts of carbon black; 0.2-0.5 parts ...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L83/06C08K13/02C08K3/22C08K5/09C08K3/04C08K5/378C08K5/47C08K5/18C08K5/13
CPCC08L9/02C08L83/06C08K13/02C08K2003/2296C08K5/09C08K3/04C08K5/378C08K5/18C08K5/13C08K5/47
Inventor 张琳佳
Owner 柳州兴杜工业贸易有限公司