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How much is the high temperature resistance of pet mesh protective film

by:Skypro     2021-04-18
There are two key temperature points for pet reticulated protective film from solid to melted into liquid, that is, melting temperature and glass transition temperature. The vitrification temperature of pet reticulated protective film is relatively low, generally around 67 degrees Celsius. When this temperature is reached, pet reticulated protective film will become vitreous. And its melting temperature is relatively high, generally reaching 267 degrees Celsius. When this temperature is reached, the pet reticulated protective film will change from a solid state to Yatai. But because it is a semi-crystalline polymer, if the temperature reaches 160 degrees Celsius, the protective film will re-arrange the molecular chains to form spherulites due to heat. The thermal deformation temperature of pet reticulated protective film is generally about 220 degrees Celsius, and it can basically reach 190 degrees Celsius at the maximum crystallization speed.


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