PET is a milky white or light yellow highly crystalline polymer with a smooth and shiny surface. Good creep resistance, fatigue resistance, abrasion resistance and dimensional stability, low wear resistance and high hardness, with the largest toughness in thermoplastics: good electrical insulation performance, less affected by temperature, but poor corona resistance. Non-toxic, weather resistance, good stability of anti-chemical drugs, low water absorption, resistance to weak acid and organic solvents, but not heat-resistant water immersion, alkali resistance. PET resin glass temperature is high, slow crystallization rate, long molding cycle, long molding cycle, large molding shrinkage, poor dimensional stability, crystallization of the molding is brittle, low heat resistance. Through improvements in nucleating agents and crystallizers and glass fiber reinforcement,
In addition to the properties of PBT, PET has the following characteristics:
1. The thermal deformation temperature and long-term use temperature are the highest among thermoplastic general engineering plastics;
2, the bending strength of 200Mpa, elastic modulus of 4000Mpa, creep resistance and fatigue is also very good, high surface hardness, mechanical properties and thermosetting plastics similar;
3, because the production of PET used ethylene glycol than the production of PBT used butanediol price is almost half cheaper, PET resin and enhanced PET is the lowest price of engineering plastics, with a very high cost performance.
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