1, isingeniso sefilimu ye-polyester

Ifilimu ye-polyester ibizwa nangokuthi ifilimu ye-polyester (i-PET) (ifilimu ekhanyayo, ifilimu ye-polyester, iphepha elibucayi, ifilimu ye-polyester, ifilimu ye-benzene tin, i-cellophane, ifilimu yokukhulula), iyi-polyethylene terephthalate njengezinto zokusetshenziswa, ukusetshenziswa kwendlela ye-extrusion ibe ifilimu ewugqinsi, bese kuthi ukunwetshwa okuphindwe kabili okwenziwe ngezinto zefilimu.

Ifilimu ye-polyester yasekhaya (ifilimu ye-polyester, ifilimu yokuvikela imvelo, ifilimu ye-PET, ifilimu ye-opal nezinye izinto zokuphrinta nokupakisha), esetshenziswa kabanzi embonini yepulasitiki eqiniswe ngengilazi, imboni yezinto zokwakha, imboni yokunyathelisa, imithi kanye nempilo.

Njengamanje, i-China ithuthukise ngempumelelo ifilimu ye-PET twist, engenabo ubuthi, engenambala, esobala, ekwazi ukumelana nomswakama, ephefumulayo, ethambile, eqinile, enamafutha e-acid-alkali kanye ne-solvent resistant, futhi engesabi amazinga okushisa aphezulu naphansi.Iyinto engenabuthi, ekwazi ukugaywa kabusha esobala, esetshenziswa kakhulu eziphuzweni ezahlukahlukene, amanzi amaminerali kanye nefilimu, okwamanje isetshenziswa kabanzi emhlabeni njengenye yezinto zokupakisha.

Ifilimu ye-Mylar iwuhlobo lwefilimu yepulasitiki ye-polymer, ngenxa yezakhiwo zayo ezinhle kakhulu ezibanzi futhi ithandwa kakhulu iningi labathengi.Njengoba izinga lokukhiqiza laseShayina kanye nezinga lobuchwepheshe lisangakwazi ukuhlangabezana nezidingo zemakethe, abanye kusadingeka bathembele ekuthengisweni kwamanye amazwe.

2, izakhiwo zefilimu ye-polyester

I-PET iyi-polymer ephezulu, ebangelwa ukuphelelwa amanzi emzimbeni kwe-ethylene terephthalate.I-Glycol terephthalate itholakala nge-esterification ye-terephthalic acid ne-glycol.I-PET iyi-milky emhlophe noma ephuzi ngokukhanyayo, i-polymer ecwebe kakhulu enendawo ebushelelezi, ecwebezelayo.

I-PET inezici ezinhle kakhulu (ukumelana nokushisa, ukumelana namakhemikhali).Amandla nokuqina, ukufakwa kukagesi, ukuphepha, njll.), ezishibhile, ezisetshenziswa kabanzi njengefayibha, ifilimu, amapulasitiki obunjiniyela, amabhodlela e-polyester nokunye.

I-PET inezakhiwo ezinhle kakhulu zomzimba nezemishini ebangeni lokushisa elibanzi, izinga lokushisa lokusetshenziswa isikhathi eside lifinyelela ku-120 ℃, ukufakwa kukagesi okuhle kakhulu, ngisho nasezingeni eliphezulu lokushisa kanye nemvamisa ephezulu, izakhiwo zayo zikagesi zisezinhle, kepha ukumelana ne-corona okubi, i-anti-toxic. , ukumelana nesimo sezulu, ukuzinza kokumelana namakhemikhali, ukukhasa, ukumelana nokukhathala, ukumelana nokungqubuzana, ukuzinza kwe-dimensional kuhle kakhulu.Ukumuncwa kwamanzi aphansi, ukumelana nama-asidi abuthaka nezincibilikisi eziphilayo, kodwa hhayi ukumelana nokushisa nokucwiliswa emanzini, hhayi ukumelana ne-alkali.

Imvamisa i-PET ayibalabala obala, ifilimu ecwebezelayo (izinhlayiya ezingeziwe manje zingangezwa ukuze zibe nombala), izakhiwo ezinhle kakhulu zemishini, ukuqina okuphezulu, ukuqina nokuqina, ukumelana nokubhoboza, ukumelana nokungqubuzana, izinga lokushisa eliphezulu nokushisa okuphansi ukumelana, ukumelana namakhemikhali, uwoyela. ukumelana, ukuqina komoya kanye nokugcinwa kwephunga, kungenye yezingxenye zefilimu eziyinhlanganisela evame ukusetshenziswa ephikisana nokungena, kodwa ukumelana ne-corona akukuhle.