| CAS No.: | 25038-59-9 |
|---|---|
| Formula: | (C10h8o4)N |
| EINECS: | 3921905050 |
| Material: | Polyethylene Terephthalate/Pet |
| Usage: | General Plastics, Engineering Plastics, Specialty Plastics |
| Plastic Properties After Heated: | Thermoplastic Plastics |
| Customization: |
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Audited Supplier Polyethylene terephthalate (PET), chemical formula (C10H8O4)n, is produced by dimethyl terephthalate and ethylene glycol transesterification or esterification of terephthalate and ethylene glycol, and then polycondensation reaction. It is a crystal type saturated polyester, a milky white or light yellow, highly crystalline polymer with smooth and glossy surface. It is a common resin in daily life, which can be divided into APET, RPET and PETG.
| Appearance | Black granule |
| CAS No.: | 25038-59-9 |
| Formula: | (C10H8O4)n |
| EINECS: | 3921905050 |
| Certification: | ISO |
| Dangerous or general goods: | general goods |
| Origin | China |
PET is divided into fiber grade polyester chips and non-fiber grade polyester chips.
(1) Fiber-grade polyester is used to manufacture polyester staple fiber and polyester filament. It is the raw material to supply polyester fiber enterprises to process fiber and related products. Polyester is the most productive variety of chemical fiber.
(2) Non-fiber grade polyester also bottle, film and other uses, widely used in packaging industry, electronic appliances, construction, automotive and other fields, among which packaging is the largest non-fiber polyester application market, but also the fastest growing PET field.
A lot of used as fiber, and engineering plastic resin can be divided into non-engineering plastic grade and engineering plastic grade two categories, non-engineering plastic grade is mainly used for bottles, films, sheets, bake resistant food containers and so on.
physicochemical property
PET is a milky or yellowish, highly crystalline polymer with a smooth, shiny surface. It has excellent physical and mechanical properties in a wide temperature range, the operating temperature can reach 120ºC, and excellent electrical insulation. Even at high temperature and high frequency, its electrical properties are still good, but it has poor corona resistance, creep resistance, fatigue resistance, friction resistance and dimensional stability. PET has ester bond, will be decomposed under the action of strong acid, strong alkali and water vapor, organic solvent resistance, good weather resistance. Disadvantages are slow crystallization rate, molding processing difficulties, high molding temperature, long production cycle, poor impact performance. Generally through strengthening, filling, blending and other methods to improve the processing and physical properties, with glass fiber reinforcement effect is obvious, improve the resin rigidity, heat resistance, drug resistance, electrical performance and weather resistance. However, it is still necessary to improve the shortcoming of slow crystallization speed, which can be adopted by adding nucleating agent and crystallization promoter. Flame retardancy and self - flameout of PET can be improved by adding flame retardants and flame retardants.
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