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Anti-aging and permanent-compression-deformation-resistant rubber material

A permanent compression deformation, rubber material technology, applied in the field of rubber materials, can solve the problem of difficult to meet the requirements of resistance to permanent compression deformation and aging resistance, to improve the cross-linking efficiency and vulcanization speed, excellent oxidation resistance, improve compatibility sexual effect

Inactive Publication Date: 2014-10-01
安徽宁国尚鼎橡塑制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the above properties of EPDM rubber, it is widely used in various aspects, but the existing EPDM rubber is still difficult to meet the requirements of permanent compression deformation resistance and aging resistance, and it is necessary to add various auxiliary ingredients or through modification. Improve its mechanical and chemical properties to meet the above requirements

Method used

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  • Anti-aging and permanent-compression-deformation-resistant rubber material

Examples

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Embodiment 1

[0020] In embodiment 1, ethylene content is 55wt% in the EPDM rubber, and Mooney viscosity ML (1+4) 100 ℃ is 85; In embodiment 2, the particle diameter of superfine activated clay is 50-90nm; Implementation In Example 3, the maleimide vulcanization aid is N, N'-m-phenylene maleimide; in Example 4, the ethylene content in EPDM rubber is 63wt%, Mooney viscosity ML (1+4) 93 at 100°C.

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Abstract

The invention discloses an anti-aging and permanent-compression-deformation-resistant rubber material. The rubber material comprises the following components in parts by weight: 30-50 parts of ethylene propylene diene monomer, 20-30 parts of modified ethylene propylene diene monomer, 0.8-1.5 parts of dicumyl peroxide, 1.5-2 parts of maleimide vulcanizing aids, 0.5-1.5 part of a vulcanizing agent BIBP, 2-4 parts of magnesium oxide, 2-5 parts of trioctyl trimellitate, 0.5-1.2 parts of paraffin, 20-30 parts of magnesium hydroxide, 5-8 parts of red phosphorus, 20-25 parts of superfine active clay, 15-20 parts of ultra-fine powder, 10- 20 parts of kaolin and 1-1.8 parts of an anti-aging agent RD, wherein the modified ethylene propylene diene monomer is acrylonitrile-grafted ethylene propylene diene monomer. The rubber material disclosed by the invention has the advantages of excellent anti-aging performance and good resistance to permanent compression deformation.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to an aging-resistant and permanent compression-deformation-resistant rubber material. Background technique [0002] EPDM rubber is a terpolymer of ethylene, propylene and non-conjugated diene. Diene has a special structure. Only one of the two bonds can be copolymerized. The unsaturated double bond is mainly used as a cross-link. An unsaturated one will not become the main chain of the polymer, but only the side chain, so that the main polymer chain of EPDM rubber is completely saturated and can resist heat, light, oxygen, especially ozone. EPDM rubber is non-polar in nature, resistant to polar solutions and chemicals, has low water absorption, and has good insulating properties. EPDM has the lowest specific gravity of all rubbers and can absorb large amounts of fillers and oils with little effect on properties, making it possible to make inexpensive rubber compounds. Du...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L51/06C08K13/02C08K5/14C08K3/22C08K5/12C08K3/02C08K3/34
CPCC08L23/16C08K2201/014C08L2201/08C08L2205/03C08L51/06C08L91/06C08K13/02C08K5/14C08K2003/222C08K5/12C08K2003/2224C08K2003/026C08K3/346
Inventor 杨存俊
Owner 安徽宁国尚鼎橡塑制品有限公司
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