Polyethylene Terephthate (Pet) ke Semi Crystalline Polymer e nang le khanyetso e ntle ea lik'hemik'hale, ho tsitsipana le ho tsitsisa le ho tsitsisa le ho tsitsisa le ho tsitsisa le ho tsitsisa le ho tsitsisa le ho tsitsisa le ho tsitsisa le ho tsitsisa le ho sisinyeha. Polymer e entsoe ka likarolo tsa ho pheta-pheta joalokaha ho bontšitsoe setšoantšong sa 1. Setsi se seng le se seng se nang le bolelele ba matsatsi a 1,09 nm le boima ba limolek'hule tsa ~ 200. Ha e hlahisoa ho tsoa ho karabelo ea acid ea Terephthalic, e akheloa ka ho le letšehali ka H- Ona ka ho le letona ka Ma-- Ka hona, polymeriation ka hona e tsamaea le tlhahiso ea metsi e tlositsoeng ka mocheso o phahameng le vacuum. Ka lebaka leo ho ba teng ha metsi naheng e qhoma ka thata ho tla potlakisa sebopeho hore se omile polymer pele ho hlokahala.

Sejo se khahlisang ka senta se mokhuts'oanyane se etsa hore motho ea mongobo a etsa hore motho ea khutsitseng a etse liphokojoe tse thata mabapi le polymer tse ling tse kang polyolefin kapa polfolefin kapa pollemide. Ho haella ha likarolo tsa karohano ka har'a lithupelo tsa polymer ke ho fella ka botsitso bo phahameng bo futhumetseng. Sehlopha sa "polymer" se tla ba le palo e tloaelehileng ea likarolo tsa 100 tsa ho pheta-pheta e le hore li-soleter tsa polymer tsa polymer li ka ba le boima ba limolek'hule tse ka bang 20,000. Mekhahlelo e phahameng ea polymerization e hlahisa likhoele tse matla empa tse qhibilihang pono le botsitso ba mongobo ho baka monko o nyane o baka lihlong tsa hydrolytic. Tekanyo ea tekanyo e tloaelehileng ea polymerization e etsoe ka Viscosity (ka ho lekanya khatello ea mohloa ka botsitso Ha e le hantle e lekanya bolelele ba setloholo sa polymer Chain kapa IV le boleng ba sehlopha sa Fiber sa Fiber le 04/40 W / Tetrachloron IV ka lebaleng la morao e amana le MV (Viscosity Vercosular Visies) ea polymer ka ho hlaka (equation 1).