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Material: NBR 5199 U.S. 17600 yuan/ton Properties: a variety of specifications protective cover, used for industrial machinery

The following list the types of rubber used the name, chemical composition, characteristics and applications performance.

1, natural rubber (NR) natural rubber rubber hydrocarbon (poly isoprene) primarily, contain a small amount of protein, water, resin acid, carbohydrate and inorganic salt, etc. Natural rubber flexibility, set out high strength, the anti-peel sex and electrical insulation good, good abrasion resistance and drought resistance, good workability, natural rubber easy and other materials adhesion, better than most in the comprehensive performance of synthetic rubber. Natural rubber defect is resistant to oxygen and ozone-resisting sex differences, easy aging metamorphism; Oil resistant and solvent resistance is bad, low resistance to acid and alkali corrosion of low ability; Heat resistance is not high. Natural rubber using temperature range: about 60 °C ~ +-80 °C. Natural rubber tire, rubber boots, used to make rubber hoses and tape, wire and cable insulating layer and sheath and other gm products. Natural rubber is especially suitable for the manufacture of torsional vibration suppressors, engine shock absorber, machine bearing, rubber-metal suspension components, diaphragm, moulded products.

2, styrenebutadiene rubber (SBR) styrenebutadiene rubber is butadiene and styrene cpolymers. Styrenebutadiene rubber performance close to natural rubber, is the largest production of general synthetic rubber, styrenebutadiene rubber characteristic is wear resistance, ageing resistance and heat resistance more than natural rubber, quality of a material is also a natural rubber even. Styrenebutadiene rubber defect is: elastic is low, resistance to scratch, resisting avulsion bowed is poor; Process performance is poor, especially since the viscous bad, the rubber was low strength. Styrenebutadiene rubber use temperature scope: 50 °C ~ + about-100 °C. Styrenebutadiene rubber mainly to substitute for natural rubber production tires, plastic board, hose, rubber shoes and other gm products.

3, butadiene rubber (BR) butadiene rubber is by butadiene polymerized the type of structure rubber. Butadiene rubber advantage: elastic and good wear resistance, ageing resistance, good low temperature resistance, in dynamic load issued heat is small, easy to metal bonding. Butadiene rubber defect is lower strength, tensile sex differences, processing performance and self-adhesive poor. Butadiene rubber using temperature range: about 60 °C ~ +-100 °C. Generally more and natural rubber or styrenebutadiene rubber and, mainly produced butadiene rubber tire surface, transportation belt and special hardy products.

4, neoprene (CR) neoprene is by chlorine emulsion polymerization monomer butadiene do a polymer. Neoprene molecule containing chlorine atom, so neoprene and other than general rubber, butyronitrile rubber has excellent resistance to oxygen, the ozone resistance sex, non-flammable, after the fire can from extinguish, oil resistance, resistance to solvents, acid and alkali resistant and ageing resistance, good air-tightness advantages; Neoprene physical and mechanical performance is better than good natural rubber, it can be used for general rubber, also can be used for special rubber. Neoprene main shortcoming is cold resistance is poorer, greater proportion, relatively high cost, electrical insulation is not good, process, easy to stick rolling coke burning and easy glue a model. In addition, the rubber was poor stability, is not easy to save. Neoprene using temperature range: about 45 °C ~ +-100 °C. Neoprene mainly used for manufacturing requirements ozone resistance, ageing resistance of high cable sheath and various protection set, the protective bubble; Oil resistance, chemical corrosion resistance of hose, adhesive tape and chemical lining; Resistance to the underground mining with burning rubber products, and all kinds of moulded products, seals, mat, adhesive and so on.

5, butyl rubber (IIR) butyl rubber is isobutylene and a small amount of isoprene or butadiene cpolymers. Butyl rubber biggest characteristic is good air-tightness, ozone resistance, ageing resistance performance is good, high heat resistance, long working temperature 130 °C in the following; Butyl rubber ability inorganic acid (such as sulfuric acid, nitric acid, etc) and general organic solvent, and vibration damping characteristics and good, electrical insulation is also very good. Butyl rubber defect is flexibility is poor, processing performance is poor, curing speed is slow, its adequate adhesiveness and oil resistance is poor. Butyl rubber using temperature range: about 40 °C ~ +-120 °C. Butyl rubber mainly used as inner tube, water tyres, balloons, wire and cable insulating layer, chemical equipment lining and shock products, heat resistance, heat resistant conveyor belt of the aging tape products.

6, butyl rubber (NBR) NBR butadiene acrylonitrile and is cpolymers. NBR characteristic is resistant to gasoline and fat oil performance especially good hydrocarbon, second only to thiokol, acrylic acid and fluorine rubber, and is superior to other general NBR rubber. Good heat resistance, air tightness, wear resistance and water resistance were well, felt force is powerful. NBR defect is cold and ozone-resisting the gender is poorer, strength and flexibility is low, acid resistance is poor, electrical insulation is bad, polar solvent resistance performance also is bad. Butyl rubber using temperature range: 30 °C ~ + about-100 °C. NBR is mainly used to produce all kinds of oil resistant products, such as rubber hoses and seal products, etc.

7, ethylene-propylene rubber (EPM \ \ EPDM) ethylene-propylene rubber is ethylene and propylene cpolymers, generally divided into two yuan ethylene-propylene rubber and EPDM. Ethylene-propylene rubber characteristics is the ozone resistance, ultraviolet radiation resistant, weather resistant sex and aging resistance is excellent, the rubber in general. The electrical insulation ethylene-propylene rubber, chemical resistance, impact flexibility is very good, acid and alkali resistant, a proportion of small, can undertake high with filling. Heat resistant up to 150 °C, bear the polarity solvent-ketone, ester etc, but ethylene-propylene rubber not resistant to fat hydrocarbon and aromatic hydrocarbons, ethylene-propylene rubber other physical and mechanical properties of the natural rubber and slightly inferior than styrenebutadiene rubber. Ethylene-propylene rubber defect is self-adhesive and mutual viscosity is poor, not easy bonding. Ethylene-propylene rubber use temperature scope: 50 °C ~ + about-150 °C. Ethylene-propylene rubber chemical equipment is mainly used as the lining, electric wire and cable wrapping, steam heat transport belt, hose, rubber products, and other car industry products.

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