Plastics Industry

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Natural polymer processing stage

This period to a natural polymer, is characterized by the modification and processing of the cellulose. 1869 Americans JW Hyatt cellulose nitrate, camphor and a small amount of alcohol can be made from a plastic material, under h eat and pressure molding plastic products, named celluloid. Newark, in the United States in 1872 to engage in the production. At that time, in addition to used as ivory substitutes, also processed into the carriage, and the car s windshield and movie film, began a tradition of the Plastics Industry, also developed molding technology.
1903 German A. Ai Xing Green invented a nonflammable cellulose acetate and injection molding method. Bayer AG, Germany, industrial production in 1905. In the meantime, some of the chemists in the laboratory synthesis of a variety of polymers, such as novolac resin, poly (methyl methacrylate), polyvinyl chloride and other laid the foundation for the later development of the plastics industry. 1904 World plastics production only 10kt, have not formed an independent industrial sector.shoot the chute

Synthetic resin phase

    This period based on synthe tic resin as the basic raw material for the production of plastic. 1909 Americans LH Baekeland in synthetic resins with phenol and formaldehyde, made the breakthrough, achieved a thermosetting resin â"€ â"€ phenolic resin patents. Phenolic resin, adding fillers, hot pressed molded products, laminates, coatings and adhesives. This is the first totally synthetic plastic. Universal phenolic resin production was established on 1910   factory. Before the 1940s, Bakelite is the most important varieties of plastic, accounts for about 2/3 of the production of plastic. Mainly used in electrical, instrumentation, machinery and automotive industries.