Flat belts

Rubber refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature, can produce greater deformation under a small external force, and can return to its original shape after the external force is removed. Rubber is a completely amorphous polymer, its glass transition temperature (T g) is low, and its molecular weight is often large, more than several hundred thousand.

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Rubber is divided into two types: natural rubber and synthetic rubber. Natural rubber is processed by extracting gum from rubber trees, rubber grass and other plants; synthetic rubber is obtained by polymerization of various monomers. Rubber products are widely used in all aspects of industry or life.

Natural rubber is made of latex, and some of the non-rubber components contained in the latex remain in the solid natural rubber. Generally, natural rubber contains 92%-95% rubber hydrocarbons, while non-rubber hydrocarbons account for 5%-8%. Due to different preparation methods, different producing areas and even different rubber picking seasons, the proportions of these ingredients may vary, but they are basically within the range.

Protein can promote the vulcanization of rubber and delay aging. On the other hand, protein has strong water absorption, which can cause rubber to absorb moisture, mold, and decrease insulation. Protein also has the disadvantage of increasing heat build-up.

Acetone extracts are some fatty acids and sterols, some of which act as natural antioxidants and accelerators, and others can help disperse the powdery compounding agent during the mixing process and soften the raw rubber.

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