Soles, rubber components

by:BEF     2020-06-25
What are

soles, rubber components. 1. Ordinary rubber soles, RB) : rubber (RB is English Rubber) The abbreviation of; Hot compression molding, natural rubber and reclaimed rubber. Heavy, oil resistant, molding bottom must be in the joint surface coarse grinding, easy to shorten the heating, color is not consistent. Advantages: good wear resistance, and antiskid, elastic, not easy fracture, flexibility is good, good expandability and shrinkage stability, hardness, bending and waterproof. Weakness: the heavier, easy to spit the frost ( Belong to quality problems) , not easy corrosion ( Environmental issues) ; Not hard, easy to be pierced through; Bad air permeability, hygroscopicity, afraid of oil immersion, should not be in the filling station in contact, such as oil. 2. High pressure polyethylene rubber soles to flavour ingredient of high pressure polyethylene and rubber sole, rubber and plastics. Raw rubber, quality, and the heavier and more expensive, oil resistant, no heat. Easy to change color. 3. Bottom: SBR styrene-butadiene rubber ( 丁苯橡胶) In butadiene and styrene monomer was synthesized by copolymerization of polymeric elastomer material, quality and purity, less impurities mixed with. Soluble in benzene, toluene, gasoline, chloroform and other organic solvents. Styrene-butadiene rubber molecules in the unsaturated double bond and vulcanizing agent by replacing or addition reaction to form crosslinked network structure, the reinforcing agent after reinforcement of styrene-butadiene vulcanizates with high physical and mechanical properties. Styrene-butadiene rubber vulcanization is slow, but cure good flatness, difficult to sulfide, ageing resistance, heat resistance, abrasion resistance and other excellent properties. These three ingredients: ( 1) Neoprene: also known as chloroprene rubber. A kind of synthetic rubber. Is chloroprene alpha The polymer. Soluble in benzene and chloroform solvent. In mineral oil and vegetable oil is slightly swelling without dissolving. Used in the manufacture of conveyor belt, rubber hose, cable and other rubber products, also can be used as coating and adhesive, etc. In this agent is used as the material. Selection of industrial products. ( 2) Methyl methacrylate: colorless volatile liquid. Slightly soluble in water, soluble in many organic solvents. In the light, heat, ionizing radiation and easy polymerization in the presence of catalyst. Used in the manufacture of organic glass, resin, plastic, paint, adhesives, lubricants, etc. This agent is used as modifier of sticky material and adhesive. Selection of industrial products. ( 3) Benzoyl peroxide, hereinafter referred to as BPO. White crystalline powder, slightly soluble in water and ethanol, soluble in benzene, chloroform and other organic solvents. Literature used as alkene unit ( Vinyl chloride, acrylonitrile, etc. ) The initiator of polymerization and photochemical reaction. When heated or friction of spontaneous explosion, contact with combustible will cause a fire, should be stored in cold and pay attention to the fire in the dark. ( 4) Toluene: colorless volatile liquid. Fragrant smell. Insoluble in water, soluble in ethanol, ether and acetone. Chemical properties similar to benzene. Used in the manufacture of saccharin, dyes, drugs, explosives, etc. In this agent is used as the solvent. Selection of industrial products. ( 5) Cyclohexanone: colorless oily liquid. The smell of acetone. Slightly soluble in water, soluble in ethanol and aether. Used in the manufacture of resin, synthetic fiber, etc. In this agent is used as the diluent. ( 6) Phenolic resin: phenol and aldehyde condensation. Usually phenol and formaldehyde role for liquid and solid products. Phenolic resin acid and alkali resistant, heat resistant. Used for the preparation of coatings, adhesives, bakelite, etc. Due to the variety, composition, performance, etc, phenolic resin can be divided into pure phenolic resin, modified phenolic resin and benzene 2 between three types of phenol formaldehyde resin. This agent USES is pure phenolic resin. This agent is used as the material. ( 7) Coumarone resin: also known as sweet bean ketone ketone of indene resins, coumarone resin, commonly known as coumarone resin. By 160 ~ 185 ℃ of coal tar fraction ( Mainly including coumaric ketone and indene) The polymerization of resin. A pale yellow to black. Acid and alkali resistance. Insoluble in junior one yuan and polyhydric alcohol, soluble in chlorinated hydrocarbons, esters, ethers and ketones, nitrobenzene and aniline, etc organic solvents. Is mainly used to replace natural resin or esterification rosin, with insulation coating and antirust paint, etc. Also used as rubber softener and ceramic binder, etc.

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