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Oil resistance rubber

A kind of technology of oil-resistant rubber and material, applied in the field of oil-resistant rubber, can solve the problems of only reaching oil resistance and poor oil resistance, and achieve the effect of improving oil resistance

Active Publication Date: 2013-11-27
WUHU HONGDA RUBBER & PLASTIC VALVE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In pipeline transportation in oil fields, the transported medium is a mixture of oil and ore, so the rubber used for the pipeline bushing is usually natural rubber containing tread rubber. Although the above rubber has wear resistance, its oil resistance is very poor. , its oil resistance can only reach more than 15%

Method used

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  • Oil resistance rubber
  • Oil resistance rubber
  • Oil resistance rubber

Examples

Experimental program
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Effect test

Embodiment 1

[0013]

[0014]

Embodiment 2

[0016]

Embodiment 3

[0018]

[0019]

[0020] The oil resistance of the present invention is detected according to the ASTM D 471 standard, and the unit is %;

[0021] The oil resistance properties (expansion rate after oil immersion) of Examples 1, 2, and 3 were 7.2%, 7.5%, and 7.8%, respectively.

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Abstract

The present invention discloses an oil resistance rubber, wherein the rubber comprises the following materials: a natural rubber, a tread rubber, zinc oxide, stearic acid, carbon black N330, paraffin, coumarone, sulfur, asphalt, 2,2-di(2-thienyl)glycolic acid methyl ester, dimethyl 4-nitrophthalate, an anti-aging agent and an accelerator. Compared with the oil resistance rubber in the prior art, the oil resistance rubber of the present invention has the following advantages that: the 2,2-di(2-thienyl)glycolic acid methyl ester and the dimethyl 4-nitrophthalate are added to the formula, such that the oil resistance of the natural rubber is increased to 7-8%.

Description

technical field [0001] This invention relates to rubber, and in particular to oil-resistant rubber for use in pipe liners. Background technique [0002] In pipeline transportation in oil fields, the transported medium is a mixture of oil and ore, so the rubber used for the pipeline bushing is usually natural rubber containing tread rubber. Although the above rubber has wear resistance, its oil resistance is very poor. , its oil resistance can only reach more than 15%. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an oil-resistant rubber with an oil resistance of 7-8%. [0004] The technical scheme for solving technical problems of the present invention is: an oil-resistant rubber containing the following substances and parts by weight: [0005] [0006] [0007] The anti-aging agent is: 2,2,4-trimethyl-1,2-dihydroquinoline polymer, anti-aging agent RD. [0008] The accelerator is: 4-4'-dimorpholine dis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L21/00C08L45/02C08L95/00C08K13/02C08K3/22C08K3/04C08K5/45C08K5/32C08K5/3437C08K5/46
Inventor 钱佑武钱必树
Owner WUHU HONGDA RUBBER & PLASTIC VALVE MFG CO LTD