Amathreyi/Ishidi le-EVOH Barrier

Ifilimu ye-EVOH Barrier Izicelo

EVOH ifilimu yokuvimbela kube yinto esetshenziswa kakhulu kunazo zonke isithiyo esiphezulu

Ifilimu yesithiyo ye-EVOH ibilokhu isetshenziswa kakhulu ekuvinjweni okuphezulu. Lolu hlobo lwezinto zefilimu ngaphezu kohlobo olunganwetshiwe, kukhona uhlobo lwe-aluminium olunezinhlangothi ezimbili, uhlobo lwe-aluminium olufakwe umhwamuko, uhlobo lwe-adhesive coating, ukwelula okubili kukhona ukupakishwa okungamelana nokushisa kwemikhiqizo eyinyumba.

I-EVOH barrier properties ifilimu yokuvimbela ifilimu incike kokuqukethwe kwe-ethylene, njengoba okuqukethwe kwe-ethylene kwanda ngokujwayelekile, izakhiwo zokuvimbela igesi ziyancipha, kodwa ukucutshungulwa kalula.

Isicelo

Isici esiphawulekayo ifilimu yesithiyo ye-EVOH enezakhiwo ezinhle kakhulu zokuvimba igesi nokucutshungulwa okuhle kakhulu, ngaphezu kokubonakala obala, isicwebezelisi, amandla emishini, ukuguquguquka, ukumelana nemihuzuko, ukumelana nokubanda namandla angaphezulu kuhle kakhulu. Emkhakheni wokupakisha, isendlalelo sesithiyo se-EVOH esenziwe nge-membrane eyinhlanganisela ephakathi, esetshenziswa kuwo wonke amaphakheji aqinile futhi athambile; ukufakwa kwe-aseptic embonini yokudla, ibhodwe elishisayo nezikhwama zokupheka, ukupakisha imikhiqizo yobisi, inyama, amajusi ezithelo ethini kanye nesinongo; imikhiqizo okungezona ezokudla, ukupakishwa kwezinyibilikisi, amakhemikhali, isakhiwo esine-air-conditioning, efakwe imiphongolo kaphethiloli, nezinye izakhi zikagesi. Emaphaketheni okudla, isitsha sepulasitiki se-EVOH singangena esikhundleni sezitsha zengilazi nezensimbi, izinkampani ezifuywayo zezilwane zasemanzini zithumela ukudla kwasolwandle ngokusetshenziswa kwe-PE / EVOH / PA / RVOH / PE ye-five-layer co-extruded vacuum packaging yefilimu. Ukusheshisa ulwelwesi oluyinhlanganisela lwe-EVOH ngenkathi nokufunda phesheya i-EVOH stretch orientation, izakhiwo ezintsha zokuvimbela igesi Ifilimu ye-EVOH ukusebenza ngokuphindwe kathathu kwefilimu ye-EVOH enganwetshiwe ekhona. Ngaphezu kwalokho, i-EVOH njenge-barrier material ingabuye ihlanganiswe kwezinye izinto zokupakisha ze-resin zokwenziwa, isebenze ukuqinisa umphumela wezakhiwo zokuvimbela.