High oil-resistant sealing element rubber material and its preparation method

A technology for rubber materials and seals, which is applied in the field of rubber materials for oil-resistant seals and its preparation, can solve the problems of high cost, high price of hydrogenated nitrile rubber and chlorohydrin rubber, and achieve low cost, good oil resistance, and good comprehensive performance Effect

Active Publication Date: 2012-03-07
芜湖禾田汽车工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The usual 41 nitrile rubber formula is not as oil-resistant, heat-resistant, and air-tight as hydrogenated nitrile rubber and chlorohydrin rubber, but hydrogenated nitrile rubber and chlorohydrin rubber are expensive and costly; theref

Method used

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  • High oil-resistant sealing element rubber material and its preparation method

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Embodiment 1

[0031] 1. Raw material preparation:

[0032] Preparation of raw materials for rubber compound:

[0033] Weigh nitrile rubber N41 90 sulfur 0.4, zinc oxide 5, stearic acid 2, antioxidant 2,5-ditertbutylhydroquinone-DTBHQ1, antioxidant RD 1.5, antioxidant 4010NA 1.5, paraffin wax 2, Fast extrusion carbon black N660 24, high wear-resistant carbon black N330 63, dioctyl ester 20, calcium carbonate 30, accelerator DM 2, accelerator TMTD1, accelerator TETD1,

[0034] Preparation of raw materials for B rubber compound:

[0035] Weigh one-component homopolychlorohydrin rubber 85, copolychlorohydrin rubber 15, zinc stearate 1, anti-aging agent RD 2, gelatin T-78 0.5, rhine wax 1.5, quick-extrusion carbon black 50, diatomaceous earth 12. Dioctyl ester 6, dilead tetroxide 5, sulfur 0.5, accelerator Na-22 1.5.

[0036] 2. A method for preparing a rubber material for a high oil-resistant seal, comprising the following steps:

[0037] The first step: Prepare A rubber material and B rubb...

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Abstract

The invention discloses a high oil-resistant sealing element rubber material, which is mixed by A and B rubber compounds in equal proportion. The two rubber compounds have the following material components by weight: A rubber compound: 85-95 of nitrile-butadiene rubber, 0.3-0.5 of sulphur, 4-6 of zinc oxide, 3-4 of eleaostearic acid, 1-2 of an anti-oxidant 2, 5-ditert-butylhydroquinone-DTBHQ, 1-2 of an antiager RD, 1-2 of an antiager 4010NA, 3-4 of paraffin, 22-25 of fast extruded carbon black N660, 62-65 of high abrasion carbon black, 18-22 of dioctyl-phthalate, 25-35 of calcium carbonate, 3-4 of an accelerator DM, 1-2 of an accelerator TMTD, 1-2 of an accelerator TETD; B rubber compound: 82-87 of monohomopolymerized epichlorohydrin rubber, 12-18 of copolymerized epichlorohydrin rubber, 1-2 of zinc stearate, 1-3 of an antiager RD, 0.4-0.6 of Gum easy T-78, 1-2 of rhein wax, 45-55 of fast extruded carbon black, 10-14 of diatomite, 5-8 of dioctyl-phthalate, 4-6 of lead tetraoxide, 0.4-0.6 of sulphur, and 1-2 of an accelerator Na-22. The rubber material can be used to produce oil-resistant sealing elements (oil cylinder sealing gaskets) with the advantages of oil resistance, thermoresistance, air impermeability, flame retardation and tear resistance and low cost.

Description

technical field [0001] The invention relates to the field of processing rubber composite materials, in particular to a rubber material for an oil-resistant seal and a preparation method thereof. Background technique [0002] Oil-resistant seals have special requirements for the formulation of rubber materials, and the products are required to have high oil resistance, high heat resistance, and high air tightness. The usual 41 nitrile rubber formula is not as oil-resistant, heat-resistant, and air-tight as hydrogenated nitrile rubber and chlorohydrin rubber, but hydrogenated nitrile rubber and chlorohydrin rubber are expensive and costly; therefore, oil-resistant seals (cylinder gaskets) The improvement of oil resistance, heat resistance, air tightness and cost saving must be researched and practiced. For this reason, the rubber formula has been researched and invented. Contents of the invention [0003] The invention provides a high oil-resistant seal rubber material and ...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L71/00C08K13/02C08K3/06C08K3/22C08K5/13C08K3/04C08K3/26C08K5/098C08K3/34
Inventor 潘海斌杨建辉施先锋
Owner 芜湖禾田汽车工业有限公司
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