The classification of raw rubber-Iota

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News > Dynamic industry > The classification of raw rubber

The classification of raw rubber

Refers to the raw rubber raw materials, namely untreated and rubber processing. Generally refers to the raw rubber unvulcanized. From the gum tree spilled liquid, add the right amount of ammonia, the formation of latex. By manual processing into latex glue, namely natural rubber.
According to the source can be divided into natural rubber and synthetic rubber. Synthetic rubber according to their properties and uses, it is divided into two kinds of general synthetic rubber and synthetic rubber. The properties of general synthetic rubber and natural rubber are similar. Special synthetic rubber, which has a variety of physical and chemical properties of natural rubber. Such as butyl rubber has good air tightness, heat aging; Dingqian rubber has excellent oil resistance, solvent resistance; silicone rubber has a wide range of using temperature; fluorine rubber ability of various solvents and high temperature 300'C; polyurethane rubber has higher tensile strength and high wear resistance.
According to the structure characteristics of rubber can be divided into saturated and unsaturated rubber, rubber, rubber polar and nonpolar rubber. The main chain with a double bond is called unsaturated rubber, while the main chain carbon atoms of polar rubber with polar side groups or polar substituents. Such as polybutadiene rubber, styrene butadiene rubber (SBR) called unsaturated non polar rubber, ethylene propylene rubber for saturated non polar rubber and Dingqian rubber for unsaturated polar rubber, and acrylic rubber, fluorine rubber is saturated polar rubber.
Along with the technical progress and production of synthetic rubber, the need to use, many new varieties of rubber appear constantly. Such as styrene butadiene rubber, butyl rubber, hydrogenation, epoxidation of natural rubber and a large correction and synthesis of thermoplastic elastomer.

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