Ifilimu ye-multilayer coextrusion
Mayelana nezingeniso zamafekthri, izingcaphuno, ama-MOQ, ukulethwa, amasampula amahhala, idizayini yemisebenzi yobuciko, imigomo yokukhokha, izinsiza zangemuva kokuthengisa njll. Sicela uchofoze i-FAQ ukuze ube nazo zonke izimpendulo odinga ukuzazi.
Chofoza okuthi FAQsIfilimu eyinhlanganisela ye-Qingdao Advanmatch Packaging enezingqimba eziningi ngokuvamile ihlukaniswa yabaisendlalelo sesisekelo, isendlalelo esisebenzayo kanye nesendlalelo sokunamathela ngokomsebenzi wesendlalelo ngasinye sefilimu kungakhathaliseki inani lezingqimba.
Isendlalelo esiyisisekelo: Ngokuvamile, izingqimba zangaphakathi nezingaphandle zefilimu eyinhlanganisela okufanele ibe nezakhiwo ezinhle zomzimba nezomshini, izakhiwo zokubumba nokucubungula kanye nosendlalelo sokuvala okushisayo.Inokusebenza okuhle kokuvala ukushisa nokusebenza kwe-welding yokushisa enezindleko eziphansi uma kuqhathaniswa.Phakathi naleso sikhathi, futhi inomphumela omuhle wokusekela kanye nokugcinwa kwesendlalelo esisebenzayo kanye nengxenye ephezulu kakhulu kulwelwesi oluyinhlanganisela olunquma ukuqina okuphelele kolwelwesi oluyinhlanganisela.Izinto eziyisisekelo ngokuyinhloko ziyi-PE, PP, EVA, PET kanye ne-PS.
Isendlalelo esisebenzayo:Ungqimba olusebenzayo lwe-coextrusion lwefilimu yokupakisha ngokuvamile luwungqimba oluvimbelayo, ngokuvamile olumaphakathi nefilimu eyinhlanganisela yezendlalelo eziningi.Ngokuyinhloko isebenzisa ama-resin okuvimbela afana ne-EVOH, i-PVDC, i-PVA, i-PA, i-PET, njll. Phakathi kwazo, izinto ezivame ukusetshenziswa kakhulu zokuvimbela i-EVOH ne-PVDC, kanti i-PA ne-PET evamile inezici ezifanayo zokuvimbela, eziyingxenye yezinto ezivimbelayo eziphakathi nendawo. .
EVOH
I-Ethylene-vinyl alcohol copolymer iwuhlobo lwe-polymer material ehlanganisa ukucutshungulwa kwe-ethylene polymer kanye nomngcele wegesi we-ethylene alcohol polymer.Ibonisa ngale futhi ine-gloss enhle.I-EVOH inesithiyo esihle kakhulu ngokumelene negesi namafutha.Amandla ayo emishini, ukuguquguquka, ukumelana nokugqoka, ukumelana nokubanda namandla angaphezulu kuhle kakhulu futhi inokusebenza okuhle kakhulu kokucubungula.Isakhiwo sokuvimbela se-EVOH sincike kokuqukethwe kwe-ethylene.Imikhiqizo epakishwe ngezinto ze-EVOH ihlanganisa izinongo, imikhiqizo yobisi, imikhiqizo yenyama, imikhiqizo kashizi, njll.
I-PVDC
I-Polyvinylidene chloride iyi-polymer ye-vinylidene chloride (1,1-dichlorethylene).Izinga lokushisa lokubola le-homopolymer polyvinylidene chloride liphansi kunephuzu elincibilikayo, ngakho-ke kunzima ukuncibilika.Ngakho-ke, i-PVDC njengento yokupakisha iyi-copolymer ye-vinylidene chloride ne-vinyl chloride enokuqina okuhle kwegesi, ukumelana nokugqwala, ukuphrinta okuhle nezici zokuvala ukushisa.Ekuqaleni, yayisetshenziselwa ikakhulukazi ukupakisha kwezempi.Kodwa yaqala ukusetshenziswa njengefilimu yokulondoloza ukudla ngawo-1950.Ikakhulukazi ukupakishwa okuqandayo okusheshayo kanye nokugcinwa okusha okwathuthukiswa ngobuningi ngokusheshisa ubuchwepheshe besimanje bokupakisha kanye nesivinini sempilo yabantu besimanje, uguquko lwabapheki be-microwave kanye nokwelulwa kwesikhathi sokuhlala kokudla nemithi okwenze ukuthi ukusetshenziswa kwe-PVDC kudume kakhulu.I-PVDC ingenziwa ibe ifilimu elincanyana ngokwedlulele, ngaleyo ndlela kuncishiswe inani lezinto ezingavuthiwe nezindleko zokupakisha, Isekhona nanamuhla.
Isendlalelo sokunamathela
Ngenxa yokungahlangani kahle kwamanye ama-resin ayisisekelo kanye nezinsimbi zezingqimba ezisebenzayo, kuyadingeka ukubeka izendlalelo ezithile zokunamathela phakathi kwalezi zingqimba ezimbili ukuze kudlale indima yeglue, ukuze kwakhiwe ifilimu eyinhlanganisela "ehlanganisiwe".Ungqimba olunamathelayo lusebenzisa inhlaka enamathelayo, evame ukusetshenziswa yi-maleic anhydride grafted polyolefin kanye ne-ethylene-vinyl acetate copolymer (EVA).
Izici zefilimu enezingqimba eziningi:
1. Indawo yokuvimbela ephezulu: Ukusetshenziswa kwe-polymer ye-multilayer esikhundleni se-polymerization ye-monolayer kungathuthukisa kakhulu indawo yokuvimbela ifilimu futhi kufinyelele umphumela ophezulu wokuvimbela umoya komoyampilo, amanzi, isikhutha, iphunga, njll. Ikakhulukazi uma i-EVOH ne-PVDC zikhethwa njenge izinto ezivimbelayo, ukudluliswa kwazo komoyampilo kanye nokudluliswa komhwamuko wamanzi ngokusobala kuphansi kakhulu.
2. Umsebenzi oqinile: Ngenxa yokukhethwa okubanzi kwefilimu ye-multilayer ekusetshenzisweni kwezinto, izinhlobonhlobo zama-resin zingakhethwa ngokuya ngokusetshenziswa kwezinto eziwusizo zibonisa ngokugcwele imisebenzi yamazinga ahlukene, ukuze kuthuthukiswe ukusebenza kwe-co. -ifilimu ye-extrusion, efana nokumelana nowoyela, ukumelana nomswakama, ukumelana nokushisa okuphezulu kokupheka, ukumelana nokushisa okubandayo okubandayo.Ingasetshenziselwa ukupakisha kwe-vacuum, ukupakisha okuyinyumba kanye nokufakwa kwe-inflatable.
3. Izindleko eziphansi: Uma kuqhathaniswa nokufakwa kwengilazi, ukupakishwa kwe-aluminium foil nokunye ukupakishwa kwepulasitiki kuyakwazi ukufeza umphumela ofanayo wokuvimbela.Ngesikhathi esifanayo, ifilimu ehlanganisiwe inezinzuzo ezinkulu ezindlekweni.Isibonelo, ukuze kuzuzwe umphumela ofanayo wokuvimbela, ifilimu enezendlalelo eziyisikhombisa ekhishwe ngokuhlanganyela inezinzuzo ezinkulu ezindlekweni kunefilimu ekhishwe ngokuhlanganyela izendlalelo ezinhlanu.Ngenxa yokwenziwa kwayo okulula, izindleko zemikhiqizo yefilimu ekhiqizwayo zingancishiswa ngo-10-20% uma kuqhathaniswa nezindleko zefilimu eyinhlanganisela eyomile namanye amafilimu ayinhlanganisela.
4. Idizayini yesakhiwo eguquguqukayo: sebenzisa ukwakheka kwesakhiwo esihlukile ukuze kuhlangatshezwane nezidingo zokuqinisekiswa kwekhwalithi yemikhiqizo ehlukene.
