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Update:31 Jul 2017

   Poly (ethylene terephthalate) chemical formula -OCH2 […]

   Poly (ethylene terephthalate) chemical formula -OCH2-CH2OCOC6H4CO-, English Name: polyethylene terephthalate, referred to as PET, for high polymer, from ethylene glycol terephthalate dehydration condensation reaction. Ethylene terephthalate is obtained from esterification of terephthalic acid and ethylene glycol. PET is milky white or light yellow, highly crystalline polymer with a smooth and lustrous surface. Has excellent physical and mechanical properties in a wide temperature range, long-term use temperature is 120 degrees centigrade, excellent electrical insulation, even under high temperature and high frequency, the electric performance is still good, but poor corona resistance, creep resistance, fatigue resistance, wear resistance, good dimensional stability.
   Good mechanical properties, the impact strength is 3~5 times of other films, good folding resistance.
   It is resistant to oil, fat, acid and alkali, and is resistant to most solvents.
   The advantages of high and low temperature performance, can be used for a long time at 120 degrees Celsius temperature range, short-term use of resistant to high temperature of 150 DEG C, -70 resistant to low temperature, and high and low temperature effects on the mechanical properties is very small.
   The permeability of gas and water vapor is low, that is, it has good gas, water, oil and odor properties.
   High transparency, can block ultraviolet light, good gloss.
   The non-toxic, tasteless, good safety, can be directly used for food packaging.