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A kind of high-performance nitrile rubber sealing material and preparation method thereof

A high-performance nitrile and rubber sealing technology, applied in the field of rubber materials, can solve the problems of poor wear resistance, single temperature resistance, low tensile strength and tear strength of nitrile rubber, and achieve the effect of excellent high temperature oil resistance

Active Publication Date: 2018-08-21
南阳天一密封股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a kind of high-performance nitrile rubber sealing material for the deficiencies in the prior art, which solves the poor wear resistance of common nitrile rubber, and the lower problems of tensile strength and tear strength, It also solves the single temperature resistance of nitrile rubber materials, and the prepared products have strong mechanical properties and excellent high temperature performance

Method used

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  • A kind of high-performance nitrile rubber sealing material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A high-performance nitrile rubber sealing material, comprising the following raw materials in parts by weight: 25 parts of nitrile rubber, 7 parts of composite vulcanizing agent, 4 parts of anti-aging agent, 15 parts of activator, 25 parts of reinforcing agent and heat-resistant auxiliary agent 5 servings.

[0036] The nitrile rubber is made by mixing nitrile rubber-40, nitrile rubber-26 and nitrile rubber-18 in a weight ratio of 5:2:1.

[0037] Wherein the composite vulcanizing agent comprises a vulcanizing agent and a crosslinking aid;

[0038] The vulcanizing agent is a mixture of sulfur and dicumyl peroxide at a weight ratio of 1.5:1.

[0039] The cross-linking aid is formed by mixing tetramethylthiuram disulfide, dibenzothiazole disulfide and N-tert-butyl-2-benzothiazole sulfenamide in a weight ratio of 1:1:1.

[0040] The anti-aging agent is made by mixing anti-aging agent RD, anti-aging agent 4010NA and anti-aging agent 445 in a weight ratio of 1:1:1.

[0041]...

Embodiment 2

[0050] A high-performance nitrile rubber sealing material, comprising the following raw materials in parts by weight: 26 parts of nitrile rubber, 6 parts of composite vulcanizing agent, 4.2 parts of anti-aging agent, 14 parts of activator, 26 parts of reinforcing agent and heat-resistant auxiliary agent 4 parts.

[0051] The nitrile rubber is made by mixing nitrile rubber-40, nitrile rubber-26 and nitrile rubber-18 in a weight ratio of 7:2:1.

[0052] Wherein the composite vulcanizing agent comprises a vulcanizing agent and a crosslinking aid;

[0053] The vulcanizing agent is a mixture of sulfur and dicumyl peroxide in a weight ratio of 2:1.

[0054] The cross-linking aid is formed by mixing tetramethylthiuram disulfide, dibenzothiazole disulfide and N-tert-butyl-2-benzothiazole sulfenamide in a weight ratio of 2:1:2.

[0055] The anti-aging agent is made by mixing anti-aging agent RD, anti-aging agent 4010NA and anti-aging agent 445 at a weight ratio of 1.5:1.5:1.

[0056...

Embodiment 3

[0065] A high-performance nitrile rubber sealing material, comprising the following raw materials in parts by weight: 28 parts of nitrile rubber, 5 parts of composite vulcanizing agent, 4.4 parts of anti-aging agent, 13 parts of activator, 27 parts of reinforcing agent and heat-resistant auxiliary agent 3 copies.

[0066] The nitrile rubber is made by mixing nitrile rubber-40, nitrile rubber-26 and nitrile rubber-18 in a weight ratio of 5:4:1.

[0067] Wherein the composite vulcanizing agent comprises a vulcanizing agent and a crosslinking aid;

[0068] The vulcanizing agent is a mixture of sulfur and dicumyl peroxide in a weight ratio of 1:1.

[0069] The cross-linking aid is formed by mixing tetramethylthiuram disulfide, dibenzothiazole disulfide and N-tert-butyl-2-benzothiazole sulfenamide in a weight ratio of 3:3:1.

[0070] The anti-aging agent is made by mixing anti-aging agent RD, anti-aging agent 4010NA and anti-aging agent 445 at a weight ratio of 1.5:0.5:1.

[007...

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Abstract

The invention discloses a high-performance nitrile rubber sealing material and a preparation method thereof. The high-performance nitrile rubber sealing material is prepared from the following raw materials in parts by weight: 25 to 35 parts of nitrile rubber, 4 to 7 parts of composite sulfurizing reagent, 4 to 5 parts of anti-aging agent, 8 to 15 parts of activating agent, 25 to 30 parts of reinforcing agent and 2 to 5 parts of heat-resistant additive. By adopting the high-performance nitrile rubber sealing material, the problems of poor wear resistance, low tensile strength and low tearing strength in ordinary nitrile rubber are solved, and the prepared product has high mechanical performance and superior high-temperature performance.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a high-performance nitrile rubber sealing material and a preparation method thereof. Background technique [0002] Due to its excellent oil resistance, wear resistance, low compression set, and good processing performance, nitrile rubber has a good cost performance compared with other special rubbers such as fluororubber, acrylic rubber, hydrogenated nitrile rubber, etc. Therefore, it has been widely used in the production of oil-resistant products, accounting for about 50% of the glue used in the production of oil-resistant seals. However, with the development of modern technology, the operating speed of various mechanical equipment and vehicles is getting higher and higher, and the working environment temperature and working conditions of the seals are becoming more and more harsh. The heat resistance of rubber and the oil resistance at high temperature can improve th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/02C08K13/06C08K3/06C08K5/14C08K3/04C08K3/36C08K3/34C08K3/22B29B7/00B29C35/02
CPCB29B7/002B29C35/02C08K2201/014C08L9/02C08L2201/08C08L2205/025C08L2205/035C08K13/06C08K3/06C08K5/14C08K3/04C08K3/36C08K3/346C08K2003/222
Inventor 樊红星赵红祥刘元英杨松涛陈宇翔朱建周张冰潭
Owner 南阳天一密封股份有限公司
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