Which kind of rubber has the best wear resistance?
Three yuan ethylene propylene rubber introducedThree yuan ethylene propylene rubber is ethylene, propylene and non conjugated diene three yuan copolymer, began commercial production in 1963. The consumption of the whole world is 800 thousand tons every year. The most important feature of EPDM is its superior oxidation resistance, ozone resistance and corrosion resistance. Because three yuan ethylene propylene rubber belongs to polyolefin family, it has excellent curing property. Of all rubbers, EPDM has the lowest specific gravity. It absorbs large amounts of fillers and oils and has little effect on properties. Therefore, rubber compounds with low cost can be made.Viton (fluorocarbon rubber) is a synthetic rubber containing fluorine, fluorocarbon rubber high temperature resistance, oil resistance and various chemical erosion characteristics, is the science and technology of modern aviation, missiles, rockets, space navigation and so on the tip of indispensable material. In recent years, along with the automobile industry on the reliability and safety requirements continue to improve, the amount of fluorocarbon rubber in cars is also growing rapidly.
Main useNitrile rubber is mainly used for the production of oil products, such as the oil pipe, tape, rubber diaphragm and large oil sac, commonly used in the production of various types of oil resistant molded products, such as O ring, oil seal, rubber bowl, diaphragm, valve, bellows, is also used to make blankets and wear parts.
In addition, it also has good water resistance, air tightness and excellent adhesive properties. Widely used in various kinds of oil resistant rubber, oil resistant gasket, gasket, sleeve, flexible packaging, soft hose, rubber roller, rubber cable printing and dyeing materials, become the indispensable elastic material in automobile, aviation, petroleum, copying and other industries.NBR has excellent oil resistance, and its oil resistance is second only to that of polysulfide rubber and fluorine rubber, and it has the characteristics of wear resistance and air tightness. Ding Qing rubber is the disadvantage of ozone and aromatic, halogenated hydrocarbons, ketones and esters solvents, it is not suitable for insulation.
Ding Qing rubber (nitrile, butadiene, rubber)It's also called NBR.Butadiene and acrylonitrile are obtained by emulsion polymerization. NBR is mainly produced by low temperature emulsion polymerization. It has excellent oil resistance, high wear resistance, good heat resistance and strong adhesive force. Its disadvantages are poor resistance to low temperature, poor ozone resistance, poor electrical properties, and slightly lower elasticity.
