apet الأسود+evoh/pe لفة لتصدر ملفات تعريف الارتباط الحرارية
Description Polyethylene terephthalate (PET), whose chemical formula is (C10H8O4) N, is prepared by exchanging dimethyl terephthalate with ethylene glycol or synthesizing dihydroxyethyl terephthalate through esterification of terephthalate and ethylene glycol, and then polycondensation reaction.It is a crystallized type of saturated polyester. It is a milky or light yellow, highly crystallized polymer with smooth and shiny […]
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