Polyethylene terephthalate formula -OCH2-CH2OCOC6H4CO- English name: polyethylene terephthalate, called PET, high polymer, polyethylene terephthalate by the dehydration condensation reaction from. Terephthalate from terephthalic acid and ethylene glycol are esterified income. PET is a milky white or pale yellow, highly crystalline polymers, surface smooth and shiny. Plastic Bottle Suppliers, Has excellent mechanical properties over a wide temperature range, long-term use temperature up 120 ℃, excellent electrical insulation, even at high temperature, its electrical properties are still good, but poor corona resistance, anti- creep resistance, fatigue resistance, abrasion resistance, dimensional stability are very good.
Outline
Polyethylene terephthalate is a thermoplastic polyester in the most important species, the English called Polythylene terephthalate or PET for short PEIT (hereinafter otherwise known as PET), commonly known as polyester resin. It is terephthalic acid and ethylene glycol polycondensate, and together referred to as PBT thermoplastic polyester, or polyester.
1946 Britain issued the first patent for preparing PET, 1949 British Formula ICI completed in the trial, but after the purchase of patents DuPont in 1953 to establish a production plant in the world, the first industrial production. Almost all the early PET for synthetic fibers (of known polyester, Dacron). Since the 1980s, PET as a breakthrough in the development of engineering plastics, have developed a nucleating agent and crystallization accelerator, currently together as PET and PBT thermoplastic polyester, has become one of the five engineering plastics.
PET into fiber grade polyester chips and non-fiber grade polyester chips. ① fiber grade polyester for the manufacture of polyester staple fiber and polyester filament yarn, polyester fiber raw material supply enterprises processing fiber and related products. As production of polyester fiber in the largest species. ② non-fiber grade polyester also bottles, films and other purposes, are widely used in the packaging industry, electronics, health care, construction, automotive and other fields, where packaging is the largest non-polyester fiber applications market, but also the fastest-PET Fast field.
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