Advantages and disadvantages of rubber products
Ding Ji rubber II R(Butyl Rubber) and a small amount of isobutylene isoprene polymerization and, due to steric hindrance of the methyl group than other molecular motion of polymers, so the gas permeability less, resistance to heat, sunlight, ozone, electrical insulation resistance; the polarity of solvent resistance, general use temperature range of -54-110 degrees. Advantages: for most of the general gas with permeability, resistance to sunlight and smell good to be exposed to animal or vegetable oil or chemical gasifiable in. Disadvantages: do not recommend the use of petroleum solvent, rubber, kerosene and aromatic hydrogen, used in automotive tires tube, leather, rubber paper, window frames, rubber, steam hose, heat conveyor belt and so on.
Styrene butadiene rubber SBR(Styrene Butadiene Copolymer) and butadiene styrene copolymers, compared with natural rubber of uniform quality, less foreign body, has better wear resistance and aging resistance, but the mechanical strength is weak, can be combined with natural rubber mixing. Non - oily material advantages: low cost, good water resistance, hardness below 70 with good elasticity, high hardness with poor shortcomings: compression, does not recommend the use of ozone, acid, oil, oil and fat ester and most hydrocarbons. Widely used in tire industry, shoes, cloth and conveyor belt industry etc..
Natural rubber NR(Natural Rubber) rubber made by collecting latex, is isoprene polymer. With abrasion resistance, high elasticity, tensile strength and elongation as well. Aging in the air, hot sticky, easy expansion in mineral oil or gasoline and dissolved, but not resistant to strong acid and alkali. Advantages: good elasticity, acid and alkali. Disadvantages: not weather, not oil resistant (resistant vegetable oil) is the production of adhesive tape, rubber hose, rubber material, and is suitable for the production of damping parts, brake products using oil and ethanol in the liquid with hydroxyl in the car.
