Low-temperature-resistant and low-pressure-change hydrogenated butadiene-acrylonitrile rubber for wind power and preparation method thereof

Abstract

The invention discloses low-temperature and low-pressure-change-resistant hydrogenated nitrile rubber for wind power and a preparation method, and particularly relates to the technical field of rubber, and the low-temperature and low-pressure-change-resistant hydrogenated nitrile rubber is prepared from the following raw materials in parts by weight: 100 parts of hydrogenated nitrile rubber, 30-50 parts of filler, 10-30 parts of plasticizer, 1-5 parts of anti-aging agent, 1-10 parts of vulcanizing agent, 1-10 parts of accelerant and 1-20 parts of argil. The hydrogenated butadiene-acrylonitrile rubber prepared by the invention has excellent low temperature resistance, oil resistance and heat resistance, and good wear resistance; during preparation, the filler and the plasticizer are added in stages, so that the dispersity of rubber components is guaranteed, and in addition, the heat-resistant inorganic filler is added and dispersed in the rubber, so that the rubber is less affected by pressure change, and the service life of the rubber is prolonged. Therefore, the hydrogenated butadiene-acrylonitrile rubber prepared by the invention can be widely applied to a wind power equipment sealing environment with a severe climatic environment to replace foreign products.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a low-temperature and low-pressure variable hydrogenated nitrile rubber for wind power and a preparation method thereof. Background technique [0002] Wind power generation in the wind power industry is the use of wind power generation technology to convert the kinetic energy of the wind into electrical energy for utilization. Wind energy is a clean and pollution-free renewable energy source. The use of wind power generation is very environmentally friendly and has a huge wind energy reserve. Therefore, it is increasingly popular all over the world. attention. With the development of the wind power industry and the increase of extreme weather, more stringent requirements for low-temperature reliability and longer service life are put forward for sealing materials. Hydrogenated nitrile rubber (HNBR) has good oil resistance (good resistance to fuel oil, lubricating oil, and aromati...

AI Technical Summary

Problems solved by technology

Hydrogenated nitrile rubber (HNBR) has good oil resistance (good resistance to fuel oil, lubricating oil, and aromatic solvents); and due to its highly saturated structure, it has good heat resistance and excellent chemical corrosion resistance Performance (good resistance to freon, acid and alkali), excellent ozone resistance, high resistance to compression set; at the same time, hydrogenated nitrile rubber also has high strength, high tear performance and excellent wear resistance It is one of the rubbers with excellent comprehensive performance, so hydrogenated nitrile rubber is very popular, but it is difficult to balance the low temperature resistance and low pressure change of HNBR at the same time.

[0003] The existing materials mainly have three major disadvantages: 1. Poor low temperature resistance: with other oil-resistant materials, such as ordinary fluorine rubber, the low temperature performance tr10 can only reach -20°C; 2. Expensive, poor wear resistance: warm fluorine rubber can reach -40°C, but the price and cost are more than ten times that of hydrogenated nitrile, and the wear resistance is poorer than hydrogenated nitrile; 3. The pressure change is large and the service life is short: the low-temperature tr10 of ordinary low-temperature hydrogenated nitrile can reach -40°C, but the pressure is low. Larger, shorter product life

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