Inqubo Yokukhiqiza Amafilimu e-BOPET: Uhlolojikelele

Ifilimu ye-BOPET, eyaziwa ngokuthi i-biaxially oriented polyethylene terephthalate, ifilimu ye-polyester eyenziwe ngokwelula i-polyethylene terephthalate (PET) emikhombandlela yayo emibili eyinhloko ukwenza ifilimu enobunjiniyela ehlukahlukene.

Yasungulwa yinkampani yaseBrithani ICI ngeminyaka yawo-1950.

Inezinzuzo eziningi amandla aphezulu okudonsa, ukuzinza kwamakhemikhali nobukhulu, ukukhanya, ukukhanya, izakhiwo zegesi kanye ne-aroma barrier, kanye nokufakwa kukagesi.

Ngemuva kweminyaka yokuthuthuka, umkhiqizo usushintshile usuka efilimini yokuqala yokuvikela i-insulating waya kwifilimu ye-capacitor yamanje, ifilimu yokupakisha, ifilimu evikela i-photosensitive, njll.

Ubukhulu bayo bungaba kusuka ku-4.5um kuya ku-350 μm.

Inqubo yokukhiqiza yayo ithuthukile futhi kusukela ekukhiqizeni inqwaba yeketela elilula kuya ekunwetshweni okuningi kanye nokwelula okukabili kanyekanye.

Ifomu layo lomkhiqizo liphinde lavela efilimini eyisicaba ukuya kwifilimu ehlanganisiwe ye-multilayer, ifilimu eqinisiwe, nefilimu ehlanganiswe.

Ifilimu ye-polyester isiphenduke enye yezinhlobo zamafilimu ezikhula ngokushesha emakethe.

I-Dehui FIlm ingomunye wabahlinzeki befilimu be-bopet e-China. Njengamanje, Sizikhiqiza kakhulu ngenqubo yokwelula enezinyathelo ezimbili. Ngokunwetshwa kwevolumu yohlelo lwayo lokusebenza, izidingo zekhwalithi zamafilimu e-polyester ziya ngokuya zikhuphuka. Ukusiphoqa ukuthi sithuthukise ikhwalithi futhi sikhulise okukhiphayo.

Inqubo yokukhiqiza ifilimu ye-BOPET

Manje, ake sethule inqubo yokukhiqiza ifilimu ye-bopet. Inqubo evamile imi kanje:

Ukomiswa kwenhlaka ye-PET → ukukhishwa kwe-extrusion → ukwelula amashidi awugqinsi ngobude → ukwelula okuphambene → ukusonga → ukusika nokupakisha → ukucutshungulwa okujulile.

Ishidi elincibilikile le-PET elincibilikisiwe

Ngemuva kokuncibilika kanye nokwenza ipulasitiki inhlaka ye-PET eyomile, bese ixutshwa izihlungi ezimahhadla nezicolekileyo kanye ne-mixer emile, Ithuthelwa ekhanda lomshini ngephampu yemitha. Bese ipholiswa yi-roller yokucisha ibe yizingcezu eziwugqinsi ukuze zisetshenziswe.

I-Extrusion ye-biaxially enwetshiwe

Ifilimu ewugqinsi ye-PET I-Biaxial (direction) ukwelula iwukwelula ifilimu noma ishidi elikhishwe ku-extruder ngezinga lokushisa elithile. In the longitudinal futhi transverse tinkhombandlela ukwenza iketango lamangqamuzana.

Ubuso bekristalu okufanele bunqunywe buqondiswe, bese ukwelashwa kokusetha ukushisa kwenziwa esimweni sokwelula.

Ifilimu enwetshiwe ye-biaxially, ngenxa yokuma kwezingxenye zamangqamuzana, ithuthukisa i-crystallinity.

Ngakho-ke ingakhuphula kakhulu amandla aqinile, imodulus enwebekayo eqinile, amandla omthelela, amandla okudabula, ithuthukise ukumelana nokubanda, ukukhanya, ukungangeni komoya, ukufakwa kukagesi, nokucwebezela.

Iningi lefilimu eliyisicaba lithatha inqubo yokwelula elandelanayo yohlobo lwendiza lwe-biaxial.