Polyester chip polymerization production of polyester raw materials are generally processed into about 4*5*2 mm flake particles, known as polyester chip. As raw materials, it is mainly used in fiber, various containers, packaging materials, film, engineering plastics and other fields. Polyester raw materials obtained from polymerization production are generally processed into about 4*5*2 mm flake particles, known as polyester chips. The process routes of polyester production include direct esterification (PTA) and transesterification (DMT). PTA method has the advantages of low raw material consumption and short reaction time, and has become the main process and preferred technical route of polyester since 1980s. Large-scale production line for continuous production process, semi-continuous and intermittent production process is suitable for medium and small production devices. The use of polyester now includes fiber, all kinds of containers, packaging materials, film, film, engineering plastics and other fields.

Polyester chip, English abbreviation PET, scientific name: polyethylene terephthalate, from refined terephthalic acid (PTA) and ethylene glycol (EG) polymerization. Polyester chip may be the raw material of polyester bottle chip, or the secondary name after different uses. At present, polyester chip is mainly used in bottle grade polyester (widely used in the packaging of various drinks, especially carbonated drinks), polyester film (mainly used in packaging materials, film and tape, etc.) and polyester chemical fiber.

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