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High and low temperature resistance and engine diesel oil resistance ultra-low pressure variation rubber material and preparation method thereof

A technology of high and low temperature resistant rubber materials, applied in the field of ultra-low pressure variable rubber materials and its preparation, can solve the problems of low heat resistance, poor compression permanent deformation, etc., to improve heat resistance, prolong service life, heat resistance The effect that balances cold resistance

Inactive Publication Date: 2017-05-31
SHAANXI RES DESIGN INST OF PETROLEUM CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an ultra-low pressure variable rubber material resistant to high and low temperature and engine diesel and its preparation method, so as to solve the problem that the existing nitrile rubber material has low heat resistance and cannot take into account high temperature resistance, low temperature resistance and high temperature conditions at the same time. The problem of poor compression set

Method used

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  • High and low temperature resistance and engine diesel oil resistance ultra-low pressure variation rubber material and preparation method thereof
  • High and low temperature resistance and engine diesel oil resistance ultra-low pressure variation rubber material and preparation method thereof
  • High and low temperature resistance and engine diesel oil resistance ultra-low pressure variation rubber material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0025] The 26-type nitrile rubber and the 40-type nitrile rubber are respectively 90:10, 80:20, 70:30 and 60:40 according to the ratio of parts by mass, and are masticated for a certain period of time in an open mill. After several times, until the Mooney viscosity value of the mixed rubber is ML 1+4 In the range of 40~60.

[0026] The masterbatch after mastication is moved into the internal mixer, the mass parts of the masterbatch are calculated as 100 parts, 30~80 parts of semi-reinforcing carbon black, 0~25 parts of high wear-resistant granular carbon black and 2~5 parts 2 parts of process additives are added to the internal mixer, and mixed evenly under high temperature and high shear conditions, wherein the rotor speed of the internal mixer is controlled at 50~120r / min, and the mixing time is at least 2 minutes; then add DOS softening plasticizer 6 ~15 parts, 0.7 parts of chemical anti-aging agent 4010NA and 1.5-5 parts of other anti-aging agents, 5 parts of active agent...

Embodiment 2

[0035] The preparation method of the high and low temperature resistant, engine diesel resistant ultra-low pressure variable nitrile rubber material of the present embodiment is the same as 1, and the difference is that the type and weight of the added plasticizer are different.

Embodiment 3

[0037] The preparation method of the high and low temperature resistant, engine diesel resistant ultra-low pressure variable nitrile rubber material of this embodiment is the same as 1, the difference lies in the type and proportion of the added anti-aging agent.

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Abstract

The invention discloses a high and low temperature resistance and engine diesel oil resistance ultra-low pressure variation rubber material and a preparation method thereof. The high and low temperature resistance and engine diesel oil resistance ultra-low pressure variation rubber material is prepared from the following components in parts by weight: 100 parts of 26 type and 40 type blending nitrile rubber, 60-100 parts of a reinforcing agent, 5-10 parts of a softening plasticizer, 4-6 parts of an antioxidant, 2-5 parts of a process auxiliary, 3-8 parts of an active agent, 2-4 parts of a vulcanizing agent and 0.5-3 parts of an auxiliary crosslinking agent. The preparation method of the rubber material comprises three steps of mastication, mixing and vulcanizing. According to the high and low temperature resistance and engine diesel oil resistance ultra-low pressure variation rubber material prepared by the technical scheme, the use temperature range of nitrile rubber is widened, permanent compressing deformation of the nitrile rubber in hot oil is greatly lowered, the service life of the nitrile rubber is prolonged, the application range of the nitrile rubber is widened, the cost is relatively low, and the rubber material can partly replace more expensive rubber materials such as chlorosulfonated polyethylene, ethylene propylene diene monomer, carboxylated nitrile and the like and has very large economic value.

Description

technical field [0001] The invention relates to the technical field of combined use of nitrile rubber, in particular to an ultra-low pressure variable rubber material resistant to high and low temperature and engine diesel and a preparation method thereof. Background technique [0002] There are five types of acrylonitrile content (%) in nitrile rubber: 42-46, 36-41, 31-35, 25-30, 18-24, etc. The higher the acrylonitrile content, the better the oil resistance and high temperature resistance , but the cold resistance decreases accordingly, and it can be used for a long time in the air at 120°C or in the oil at 150°C. Therefore, nitrile rubber is widely used in various oil-resistant rubber products, oil-resistant gaskets, gaskets, sleeves, flexible packaging, soft hoses, printing and dyeing rubber rollers, cable rubber materials, etc., and has become a must in industries such as automobiles, aviation, petroleum, and copying Indispensable elastic material. With the rapid deve...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08K13/02C08K3/04C08K3/22C08K5/09C08K5/098C08K5/12C08K5/18
CPCC08K2201/014C08L9/02C08L2201/08C08L2205/025C08K13/02C08K3/04C08K2003/2296C08K5/09C08K5/098C08K5/12C08K5/18
Inventor 张振华李鹏周晓慧
Owner SHAANXI RES DESIGN INST OF PETROLEUM CHEM IND
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