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Rubber sealing material

A rubber sealing and rubber technology, applied in the field of materials, can solve the problems of large load of the sealing ring, malignant accidents, losses and troubles, etc., and achieve the effects of strong wear resistance, low friction coefficient and high mechanical strength.

Inactive Publication Date: 2014-02-19
佛山市美捷远电器实业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the quality of the seal is poor, it will cause loss and trouble if it is light, and it will cause serious accidents if it is serious
Especially in an environment with high working pressure, the seal ring bears a large load, and the seals are often damaged during the operation of the equipment. Some seals can only be used for 1-2 months, or even a shorter time , it needs to be replaced, which brings troubles to the continuous production of the enterprise

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The formula of rubber sealing material of the present invention is as follows:

[0012] Hydrogenated nitrile rubber 75kg, acrylate rubber 35kg, allyl alcohol 4kg, diacetyl peroxide 10kg, aluminum oxide 9kg, zinc oxide 6kg, white carbon black 7kg, antioxidant 0.8kg, sulfur 2.5kg.

[0013] The content of acrylonitrile in hydrogenated nitrile rubber is 24%, the Mooney viscosity is 75, and the iodine absorption value is 13.

[0014] The preparation method of rubber sealing material of the present invention is as follows:

[0015] First add 75kg of hydrogenated nitrile rubber, 35kg of acrylate rubber, 4kg of allyl alcohol, and 10kg of diacetyl peroxide into the mixer, and after mixing for 6 minutes at 130°C, add 0.8kg of anti-aging agent, 9kg of aluminum oxide, 6kg of zinc oxide, 7kg of white carbon black, 2.5kg of sulfur, kneading, pressing and molding; put the formed rubber material into the mold of the vulcanization equipment for vulcanization treatment, the temperature ...

Embodiment 2

[0017] The formula of rubber sealing material of the present invention is as follows:

[0018] Hydrogenated nitrile rubber 70kg, acrylate rubber 30kg, allyl alcohol 3kg, diacetyl peroxide 11kg, aluminum oxide 8kg, zinc oxide 5kg, white carbon black 6kg, antioxidant 2kg, sulfur 2kg.

[0019] The content of acrylonitrile in hydrogenated nitrile rubber is 23%, the Mooney viscosity is 70, and the iodine absorption value is 11.

[0020] The preparation method of rubber sealing material of the present invention is as follows:

[0021] First add 70kg of hydrogenated nitrile rubber, 30kg of acrylate rubber, 3kg of allyl alcohol, and 11kg of diacetyl peroxide into the mixer, and after mixing for 5 minutes at 125°C, add 2kg of anti-aging agent, 8kg of alumina, 5kg of Zinc oxide, 6kg white carbon black, 2kg sulfur, kneading, pressing molding; adding the molded rubber material into the mold of the vulcanization equipment, vulcanization treatment, the temperature is 175 ° C, the vulcaniza...

Embodiment 3

[0023] The formula of rubber sealing material of the present invention is as follows:

[0024] Hydrogenated nitrile rubber 80kg, acrylate rubber 40kg, allyl alcohol 5kg, diacetyl peroxide 12kg, aluminum oxide 10kg, zinc oxide 8kg, white carbon black 8kg, antioxidant 0.3kg, sulfur 3kg.

[0025] The content of acrylonitrile in hydrogenated nitrile rubber is 26%, the Mooney viscosity is 80, and the iodine absorption value is 15.

[0026] The preparation method of rubber sealing material of the present invention is as follows:

[0027] First add 80kg of hydrogenated nitrile rubber, 40kg of acrylate rubber, 5kg of allyl alcohol, and 12kg of diacetyl peroxide into the mixer, and after mixing for 8 minutes at 130°C, add 0.3kg of anti-aging agent, 10kg of aluminum oxide, 8kg of zinc oxide, 8kg of white carbon black, 3kg of sulfur, kneading, pressing molding; the molded rubber material is added to the mold in the vulcanization equipment for vulcanization treatment, the temperature is ...

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Abstract

The invention provides a rubber sealing material which has a long service life under high pressure. The rubber sealing material consists of the following components in parts by mass: 70-80 parts of hydrogenated butadiene-acrylonitrile rubber, 30-40 parts of acrylate rubber, 3-5 parts of allyl alcohol, 10-12 parts of diacetyl peroxide, 8-10 parts of aluminum oxide, 5-8 parts of zinc oxide, 6-8 parts of white carbon black, 0.3-2 parts of an anti-aging agent, and 2-3 parts of sulfur. The rubber sealing material provided by the invention has the advantages of high mechanical strength, low friction coefficient (0.19-0.21), strong wear resistance and long service life (130-160 days) under the working conditions of high temperature (190 DEG C) and high pressure (410 MPa).

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a rubber sealing material. Background technique [0002] Sealing products are important basic components of all kinds of machinery, and almost all industrial sectors cannot do without it. The quality of the sealing element is directly related to the service life and operational reliability of the machine. If the quality of the seals is poor, it will cause loss and trouble if it is light, and it will cause serious accidents if it is serious. Especially in an environment with high working pressure, the seal ring bears a large load, and the seals are often damaged during the operation of the equipment. Some seals can only be used for 1-2 months, or even a shorter time , it needs to be replaced, which brings troubles to the continuous production of the enterprise. Therefore, there is an urgent need for a rubber sealing material that can be used for a long period of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F291/12C08F291/06C08L51/04C08K13/08C08K3/22C08K3/36C08K3/06B29C35/02
Inventor 黄铁军
Owner 佛山市美捷远电器实业股份有限公司
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