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The Development History Of Engineering Plastics
Jul 02, 2018

Engineering plastics developed rapidly in the 1950s. Nylon 66 resin, although as early as in 66 has been successfully developed and put into production, but at that time, it is mainly used in the manufacture of synthetic fibers, it was not until the 50 s breakthrough traditional pure fiber USES, through processing and manufacturing plastic molding. The real rapid development of engineering plastics was after the successful development of polyformaldehyde and polycarbonate in the late 1950s. Due to the high crystallinity of polyformaldehyde, it is endowed with excellent mechanical properties, which makes plastics become one of the structural materials for the first time. With the successful development of copolymerized formaldehyde and the popularization of screw injection molding machine, the important position of engineering plastics in the material field was further established. The polycarbonate is transparent engineering plastics with excellent comprehensive performance, wide application, is one of the fastest growing engineering plastics, in the field of engineering plastics, its output and consumption after second polyamide.

In 1961, American dupont successfully developed polyimide, opening the way to the development of special engineering plastics. The appearance of polyimide has also promoted the development of polysulfone, polyphenylsulfide and polybenzomidazole and other heat-resistant engineering plastics.

General motors launched its polyphenyl ether resin into industrial production in 1964.

In 1980, the British ICI company developed the melting point of 336 ℃ of special engineering plastics polyether ether ketone (PEEK). PEEK has remarkable heat resistance, radiation resistance and chemical resistance, and can be injected into the mold, which has attracted widespread attention. The composite material made from PEEK and reinforced with glass fiber or carbon fiber has been applied in aerospace and aerospace fields.

The successful development of thermally induced liquid crystal polymers in the mid-1980s is another important event in the history of special engineering plastics. Liquid crystal polymer excellent heat resistance, temperature can reach 200 ℃ above, has the enhancement, high strength, high modulus, chemical resistance and other properties, low melt viscosity, forming convenient, has a very broad application prospects in the field of electronic industry.