The chemical treasures. Natural rubber is a chemical name is cis-1, 4-polyisoprene, that is, there are n isoprene (C5H8) have values ranging from 15-20000 because components of hydrocarbons that is not fair, Yang polarity, so the tires melt so well in solvent polarity, such as benzene, hexane, etc. In General, natural rubber has the structure of molecules, rearrange online morphology, but in some conditions of rubber molecules can arrange the relatively low temperature, or organized when requisitioned, it can get the recrystallization temperature recrystallization due to low to make more solid rubber, but if the tire temperature rises it will weaken and reinstated. While the occurrence of crystals is due to stretch the rubber makes a good mechanical properties. That is, there will be resistance to traction tires. Tear resistance and high abrasion resistance.
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