High-temperature stator rubber material and preparation method thereof

Abstract

The invention discloses a high-temperature stator rubber material and a preparation method thereof and belongs to the field of the rubber material and the preparation method thereof. The rubber material is prepared from, in parts by weight, 70-80 parts of hydrogenated butadiene-acrylonitrile rubber, 20-30 parts of carboxyl hydrogenated butadiene-acrylonitrile rubber, 70-80 parts of semi-reinforcing carbon black, 5-10 parts of zinc oxide, 1-2 parts of stearic acid, 10-20 parts of plasticizer, 3-5 parts of anti-aging agent, 2-3 parts of cross-linking agent and 1.5-2 parts of auxiliary cross-linking agent. The high-temperature stator rubber material is prepared from hydrogenated butadiene-acrylonitrile rubber and carboxyl hydrogenated butadiene-acrylonitrile rubber, the hydrogenated butadiene-acrylonitrile rubber and carboxyl hydrogenated butadiene-acrylonitrile rubber are co-vulcanized so that the high-temperature stator rubber material is capable of meeting the requirement on high temperature resistance, the hydrogenated butadiene-acrylonitrile rubber which is vulcanized by a sulfur-free vulcanization system is capable of resisting the high temperature of 180 DEG C at most, and the vulcanized product has excellent heat resistance, chemical stability and bonding strength, and furthermore, the rubber material has excellent bonding strength.

Description

technical field [0001] The invention belongs to the field of rubber materials and preparation methods thereof, and more specifically relates to a high-temperature stator rubber material and preparation methods thereof. Background technique [0002] With the continuous development of the oil drilling industry, the use conditions of rubber products are becoming increasingly harsh, and higher requirements are put forward for heat resistance. Many customers require long-term high temperature resistance of 180 °C. Hydrogenated nitrile rubber has outstanding oil resistance, medium resistance, especially heat aging resistance. However, the hydrogenated nitrile rubber of the traditional vulcanization system has quality problems of falling blocks and delamination during long-term high-temperature use, so that it cannot work normally. [0003] "Application and Present Situation of Hydrogenated Nitrile Rubber" (Rubber Science and Technology Market, No. 10, 2008, Author: Yan Jinjun, Be...

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Problems solved by technology

[0010] Aiming at the problems that the temperature resistance of rubber in the prior art can only reach 150°C, the drilling service life is short, and it is prone to block loss and delamination, the present invention provides a high-temperature stator rubber material and its preparation method. The temperature can reach 180°C, which has a long service life, and the rubber injection, extrusion and other processes are stable, which can well meet the requirements of the product for rubber materials with high temperature resistance and excellent bonding performance

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