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NR Rubber

NR Rubber

Usually what we call natural rubber refers to the elastic solids made from natural latex collected from rubber trees of Brazil through solidification, drying and other processing procedures. Natural rubber is a natural macromolecule compound with cis-1,4-polyisoprene as its main component. Its molecular formula is (C5H8) n. Its rubber hydrocarbon (cis-1,4-polyisoprene) content is more than 90%, and it also contains a small amount of protein, fatty acid, sugar and ash.

Physical properties of natural rubber. Natural rubber has high elasticity at room temperature, slightly plastic, very good mechanical strength, low hysteresis loss, low heat generation during multiple deformation, so its flexibility is also good, and because it is non-polar rubber, so its electrical insulation performance is good.

Chemical properties of natural rubber. Because of unsaturated double bonds, natural rubber is a kind of substance with strong chemical reaction ability. Light, heat, ozone, radiation, flexion deformation and copper, manganese and other metals can promote the aging of rubber. Ageing resistance is the fatal weakness of natural rubber. However, natural rubber with antioxidant can not see much change sometimes after two months'exposure in the sun, and it is in the warehouse. It can still be used as usual after three years of storage.

Medium resistance of natural rubber. Natural rubber has better alkali resistance, but not strong acid resistance. As natural rubber is a non-polar rubber, it can only withstand some polar solvents, but swells in non-polar solvents, so its oil resistance and solvent resistance are very poor. Generally speaking, hydrocarbons, halogenated hydrocarbons, carbon disulfide, ethers, higher ketones and higher fatty acids all have solubility to natural rubber, but their solubility is affected by the degree of plasticization, while lower ketones, lower esters and alcohols have the same effect on the solubility of natural rubber. Natural rubber is non-solvent.


Person Name：Mr.Wei

Phone Number：18737355333

Fax Number：+86-0373-5423130


Adress：DaKuai Town FengQuan District XinXiang City


Xinxiang Dingcheng Rubber And Plastic Co.,Ltd
Over the years specializing in the production of
rubber products

Person Name：Mr.Wei Phone Number：18737355333
Fax Number：+86-0373-5423130
Adress：DaKuai Town FengQuan District XinXiang City