DuPont PET GF40 540SUV Pet Resin 40% Glass Reinforced PET Plastic Granules
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If you have any doubt about the price, we can give a proper discount by different
purchasing quantity. 1、 PET plastic properties 1. PET plastic has good heat resistance and can be used at 120 ℃ for a long time; It can maintain its
excellent physical and mechanical properties in a wide temperature range. 2. Low water absorption, non-toxic, good weather resistance and chemical stability, resistant to weak acids and organic solvents, but not resistant to hot water immersion and alkali. 3. PET plastic polyethylene terephthalate is a milky white or light yellow, highly crystalline polymer with smooth and shiny surface. Its relative density is 1.4, and the biaxial tensile film has high strength and transparency. Its melting point is 265 ℃ and its glass transition temperature is 80 ℃. 4. The strength and toughness are the crowns of thermoplastics, and the strength after heat treatment is significantly improved. The tensile strength after heat treatment and extension can be equivalent to that of aluminum film. It has good creep resistance, fatigue resistance, friction resistance and dimensional stability, low wear and high hardness. Its electrical performance is excellent, and is less affected by temperature, but its corona resistance is poor. 5. The crystallization rate of PET plastic is very small, so the molding processability is poor. Because of the rapid crystallization, if the product (film) is transparent, it must be cooled quickly. Polyethylene terephthalate must be fully dried before molding, and can be dried in vacuum or boiling at 135 ℃ for 5h. Otherwise, the product quality will be affected, which is more important for the cast film. Because of its slow crystallization rate and difficult processing, nucleating agent needs to be added. 6. The polyester resin with a viscosity of about 0.6 has a good film-forming property, which can be formed by biaxial stretching after casting or extrusion. Polyester resin with high viscosity (intrinsic viscosity above 1.0) (melting point about 245 ℃) can be extruded, injected, blown, molded, coated, bonded, machined, plated, vacuum coated, and printed. The injection conditions of polyester resin are: injection temperature 290~315 ℃, injection pressure 7.0~14.0MPa. If 30% glass fiber reinforced plastic is added, the injection temperature is 295~310 ℃. The injection pressure is 35~70MPa. 3、 PET plastic application 1. PET plastic polyethylene terephthalate is mainly used for fiber, and a small amount is used for film and engineering plastics. PET fiber is mainly used in textile industry. PET plastic film is mainly used for electrical insulation materials, such as capacitor, cable insulation, printed circuit wiring substrate, motor slot insulation, etc. 2. Another application field of PET film is film base and baseband, such as film, X-ray film, audio tape, video tape, and computer tape. It is also used in food, medicine, oil, tea and other packaging fields. In military, it can be used for acoustic shielding and missile covering materials. PET film is also used for vacuum aluminum plating (also zinc, silver, copper, etc.) to make metallized film, such as gold and silver wire, micro capacitor film, etc. 3. Glass fiber reinforced PET is applicable to the electronics and automotive industry, and is used for various coil skeletons, transformers, television sets, recorder parts and shells, automobile lamp holders, lamp shades, incandescent lamp holders, relays, selenium rectifiers, etc. At present, the consumption proportion of PET engineering plastics in various application fields is: 26% for electronic appliances, 22% for automobiles, 19% for machinery, 10% for appliances, 10% for consumer goods, and 13% for others. At present, the total consumption of PET engineering plastics is not large, accounting for only 1.6% of the total PET. However, some key technical problems in the manufacturing of PET engineering plastics have been solved, and the price of PET is lower than that of PBT and polycarbonate, and its mechanical properties are better than that of PBT. Its potential market is quite large, and the application prospect of PET is good in the future. PET plastic polyethylene terephthalate has different types, viscosity, melting point, mechanical strength, thermal deformation temperature, creep resistance and wear resistance, and its application is also different |
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