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PET (or PET, polyethylene terephthalate) - is a thermoplastic polymer which is among the most common polyesters. PET material has transparency, high strength, good ductility (and in a heated condition, and cold), and chemical resistance. This material is easy to work with drilling, sawing, milling. All their characteristics PET material retains at low temperatures down to -40 and high until 75 degrees.

Characteristics PET

PET material has high chemical resistance to petrol, oils, greases, alcohol, ether, dilute acids and alkalis. Polyethylene is not soluble in water and many organic solvents, is soluble only at 40-150 deg. C. phenols and alkyl and chlorinated aniline benzyl alcohol, chloroform, pyridine, dichloroacetic and chlorosulfonic acid, etc. .. Not resistant to ketones, strong acids and alkalis. It has increased resistance to water vapor.
APET - transparent solid with a grayish-yellowish tint, crystal - a solid, non-transparent, colorless. It features a low coefficient of friction (including for grades containing glass fiber). Thermal degradation of PET occurs in a temperature range of 290-310 C. The degradation occurs statistically along the polymer chain; major volatile products are terephthalic acid, acetaldehyde and carbon monoxide. At 900 ° C, it generates a large number of different hydrocarbons; mainly volatiles consist of carbon dioxide, carbon monoxide and methane. To prevent oxidation of PET during processing can be used with a wide range of antioxidants.


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