PETG is briefly a transparent plastic and an amorphous copolyester. The commonly used copolymer of PETG is 1, 4-cyclohexane dimethanol (CHDM), which is called polyethylene terephthalate -1, 4-cyclohexane dimethanol ester. It is the product of polycondensation of terephthalic acid (PTA), ethylene glycol (EG) and 1, 4-cyclohexane dimethanol (CHDM). Compared with PET, there are more 1, 4-cyclohexane dimethanol copolymers, and compared with PCT, there are more ethylene glycol copolymers. Therefore, the performance of PETG is very different from PET and PCT, and it has its unique characteristics.
PETG sheets are easy to produce products with complex shapes and large tensile ratios. Moreover, unlike PC boards and impact modified acrylics, this sheet does not need to be pre-dried before thermoforming. Compared with PC board or acrylic, its molding cycle is short, the temperature is low, and the yield is higher.
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