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Oil resistant rubber

A technology of oil-resistant rubber and fluororubber, which is applied in the field of oil-resistant rubber, can solve the problems of high cost and high price of fluororubber, and achieve good high temperature resistance

Inactive Publication Date: 2014-02-26
广州充奇实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the high price of fluorine rubber, the cost is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] An oil-resistant rubber, consisting of the following components in parts by weight: 50 parts of fluororubber, 25 parts of natural rubber, 12 parts of nitrile rubber, 30 parts of carbon black, 22 parts of white carbon black, 1.2 parts of anti-aging agent RD, anti-aging Agent 4010NA 1.5 parts, paraffin wax 3 parts, light calcium carbonate 30 parts, stearic acid 2.5 parts, zinc oxide 4 parts, magnesium oxide 8 parts, 2,2'-dithiodibenzothiazole 1.5 parts, coumarone 3.5 parts, 0.5 parts of vulcanizing agent.

Embodiment 2

[0016] An oil-resistant rubber, characterized in that, by weight, it consists of the following components: 40 parts of fluororubber, 20 parts of natural rubber, 10 parts of nitrile rubber, 20 parts of carbon black, 15 parts of white carbon black, anti-aging agent RD 0.5 parts, 1 part of antioxidant 4010NA, 2 parts of paraffin, 25 parts of light calcium carbonate, 2 parts of stearic acid, 3 parts of zinc oxide, 5 parts of magnesium oxide, 1 part of 2,2'-dithiodibenzothiazole , 3 parts of coumarone, and 0.2 part of vulcanizing agent.

Embodiment 3

[0018] An oil-resistant rubber, characterized in that, by weight, it consists of the following components: 60 parts of fluororubber, 30 parts of natural rubber, 15 parts of nitrile rubber, 40 parts of carbon black, 30 parts of white carbon black, anti-aging agent RD 2 parts, 2 parts of antioxidant 4010NA, 4 parts of paraffin, 35 parts of light calcium carbonate, 3 parts of stearic acid, 5 parts of zinc oxide, 10 parts of magnesium oxide, 2 parts of 2,2'-dithiodibenzothiazole , coumarone 4 parts, vulcanizing agent 0.8 part.

[0019] The oil resistance of the present invention is tested according to the ASTM D 471 standard, and the unit is %;

[0020] The oil resistance properties (expansion rate after oil immersion) of Examples 1, 2, and 3 were 9%, 9.2%, and 9.5%, respectively. The aging resistance coefficients of Examples 1, 2, and 3 are 0.72, 0.84, and 0.81. The airtightness of embodiment 1,2,3 is 3.2m 2 / s.Pa, 3.03m 2 / s.Pa, 3.15m 2 / s. Pa.

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PUM

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Abstract

The invention discloses an oil resistant rubber, which is composed of the following components by weight: 40-60 parts of fluorine rubber, 20-30 parts of natural rubber, 10-15 parts of nitrile rubber, 20-40 parts of carbon black, 15-30 parts of white carbon black, 0.5-2 parts of antioxidant RD, 1-2 parts of antioxidant 4010 Na, 2-4 parts of paraffin, 25-35 parts of light calcium carbonate, 2-3 parts of eleaostearic acid, 3-5 parts of zinc oxide, 5-10 parts of magnesium oxide, 1-2 parts of 2, 2'-dibenzothiazyl disulfide, 3-4 parts of coumarone and 0.2-0.8 parts of vulcanizing agents. The oil resistant rubber provided by the invention has the advantages of oil resistance, airtight and good high temperature resistance.

Description

technical field [0001] The invention belongs to the technical field of rubber, in particular to an oil-resistant rubber. Background technique [0002] Piston seals used in lubricating and hydraulic oil media have certain requirements for oil resistance and high temperature resistance. [0003] Perfluororubber is currently the rubber material with the best high temperature resistance, chemical solvent resistance and high cleanliness properties among all elastic sealing materials. It is resistant to chemicals and corrosive media (resistant to strong acids, strong alkalis, ethers, ketones, esters, Nitrogenous compounds, hydrocarbons, alcohols, aldehydes, oils, steam, amino compounds, etc. corrosion of more than 1600 chemical products), the temperature resistance can reach 327 ° C, in the semiconductor industry, chemical treatment process, automobile industry, petroleum industry , pharmaceutical industry, electronic products, solvent equipment, nuclear industry, aerospace equip...

Claims

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Application Information

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IPC IPC(8): C08L27/12C08L7/00C08L9/02C08L45/02C08K13/02C08K3/04C08K3/36C08K3/26C08K5/09C08K3/22C08K5/47
Inventor 叶春会王泽平
Owner 广州充奇实业有限公司