Amathreyi e -CPET, noma amathreyi e-Crystalline Polyethylene Terephthalate, awuhlobo lokupakisha ukudla okwenziwe ngohlobo oluthile lwezinto ze-thermoplastic. I-CPET yaziwa ngokumelana kwayo okuhle kakhulu namazinga okushisa aphezulu naphansi, okwenza kube ukukhetha okuthandwayo kwezicelo ezahlukahlukene zokupakisha ukudla.

Yebo , amathreyi epulasitiki e-CPET angafakwa kuhhavini. Angamelana namazinga okushisa asukela ku--40°C kuya ku-220°C (-40°F kuya ku-428°F), okuvumela ukuthi asetshenziswe kumahhavini e-microwave, kumahhavini avamile, ngisho nasendaweni yokugcina eqandisiwe.

Umehluko omkhulu phakathi kwamathileyi e-CPET namathileyi e-PP (Polypropylene) ukumelana kwawo nokushisa kanye nezakhiwo zezinto ezibonakalayo. Amathileyi e-CPET amelana nokushisa kakhulu futhi angasetshenziswa kokubili kuma-microwave kanye nama-oven avamile, kuyilapho amathileyi e-PP evame ukusetshenziselwa ukusetshenziswa kwama-microwave noma ukugcina izinto ezibandayo. I-CPET inikeza ukuqina okungcono nokumelana nokuqhekeka, kanti amathileyi e-PP aguquguquka kakhulu futhi ngezinye izikhathi angabiza kancane.

Amathileyi e -CPET asetshenziselwa izinhlelo ezahlukene zokupakisha ukudla, okuhlanganisa ukudla okulungele, imikhiqizo yokubhaka, ukudla okuqandisiwe, nezinye izinto ezibolayo ezidinga ukufudunyezwa noma ukupheka kuhhavini noma kuma-microwave.

I -CPET kanye ne-PET zombili ziyizinhlobo zama-polyester, kodwa zinezakhiwo ezihlukile ngenxa yezakhiwo zazo zama-molecule. I-CPET iwuhlobo lwe-PET oluyikristalu, olunikeza ukuqina okukhulu kanye nokumelana okungcono namazinga okushisa aphezulu naphansi. I-PET ivame ukusetshenziselwa amabhodlela eziphuzo, izitsha zokudla, kanye nezinye izinhlelo zokusebenza zokupakisha ezingadingi izinga elifanayo lokubekezelela amazinga okushisa. I-PET isobala kakhulu, kuyilapho i-CPET ivame ukungacaci noma ingabonakali kangako.