I-Mirathane® PBAT|Iwohloka futhi iyasimeme

I-PBAT (i-polybutylene terephthalate) isifinyezo se-polybutylene terephthalate. Izinto zokusetshenziswa zokulungiswa kwe-PBAT ikakhulukazi i-adipic acid (AA), i-terephthalic acid (PTA), i-butylene glycol (BDO) njengama-monomers, ngokwengxenye ethile yokusabela kwe-esterification noma i-transesterification kanye nokusabela kwe-polycondensation ukuze kuhlanganiswe i-polyadipic acid/butylene terephthalate. I-ester, bese nge-esterification, i-polycondensation kanye ne-granulation izinyathelo ezintathu zokulungisa umkhiqizo wokugcina. I-PBAT iqukethe izindandatho ze-benzene, ngakho-ke inokuqina okuphezulu kwe-molecular thermal, kodwa izinga eliphansi lokuwohloka kwamangqamuzana; ama-molecule athatha indawo enkulu futhi akulungele ukuxubana namanye ama-molecule; Inamaketanga amafutha, aqinisekisa ukuguquguquka okuhle kwamaketanga amangqamuzana futhi ngaleyo ndlela i-ductility enhle.

I-PBAT i-semi-crystalline polymer, ngokuvamile izinga lokushisa lecrystallization liba ngu-110 °C, futhi indawo yokuncibilika icishe ibe ngu-130 °C, futhi ukuminyana kuphakathi kuka-1.18g/ml~1.3g/ml. I-crystallinity ye-PBAT icishe ibe ngama-30%, kanti ubulukhuni be-Shore bungaphezu kwama-85. I-PBAT iyi-copolymer yamaqembu e-aliphatic kanye nephunga elimnandi, ehlanganisa izici ezinhle kakhulu zokuwohloka kwe-aliphatic polyester kanye nezakhiwo ezinhle zemishini yama-polyester anephunga elimnandi. Ukusebenza kokucubungula kwe-PBAT kufana kakhulu ne-LDPE, futhi ifilimu ingavuthwa ngemishini yokucubungula ye-LDPE.

I-PBAT inokubola okuhle kwe-biodegradability, futhi imikhiqizo eyenziwe nge-PBAT yonakaliswa kalula futhi ngokuphelele ngosizo lwama-microorganisms emvelo kanye namagciwane, ekugcineni aguqulelwe ku-carbon dioxide namanzi. Ngenxa ye-ductility yayo enhle, ukunwetshwa ngesikhathi sekhefu, ukumelana nokushisa kanye nezakhiwo ezinomthelela, i-PBAT ingasetshenziswa embonini yokupakisha yepulasitiki, njengezikhwama zokuthenga, izikhwama zikadoti, njll., futhi iphinde isetshenziswe ku-tableware, ifilimu ye-mulch nezinye izinkambu.