Ekucutshungulweni kwefilimu, uhlobo olulodwa lwempahla eluhlaza ludluliselwa kolunye uhlobo lwefilimu olwenziwe noma ezinhlotsheni ezihlukene zamafilimu enziwe futhi okunamathelayo kusetshenziselwa ukuhlangana ndawonye ukuze kwakhiwe amafilimu anezingqimba eziningi.Lo mkhiqizo ubizwa ngokuthi amafilimu ayinhlanganisela.Ifilimu ekhishwe ngokuhlanganyelainezici eziningi zefilimu ehlanganisiwe, kodwa kunomehluko owodwa, okungukuthi, zonke izingqimba zefilimu ehlanganisiwe zikhishwa ngesikhathi esifanayo, futhi izendlalelo ziboshwe ngokuncibilika okushisayo ngaphandle kwenqubo yokugcoba.
Izinto zefilimu eyinhlanganisela ngokuvamile ziyipulasitiki, kodwa iphepha, i-foil yensimbi (imvamisa i-aluminium) noma indwangu ingasetshenziswa.Zonke izingqimba ze-ifilimu ehlanganisiwezikhishwa ngesikhathi esifanayo, ngakho-ke ngeke kube khona ucwecwe lwe-aluminium, iphepha nezinye izinto ezingezona zepulasitiki.
I-Multi-layer co-extrusion barrier membrane iyifilimu eyinhlanganisela esebenzayoeyenziwe ngokusebenzisa ama-extruder amaningi ukukhipha inhlaka ngokusebenza okuphezulu kwesithiyo kanye nokuncibilika kwamanye ama-resin ngokusebenzisa ukufa okujwayelekile.I-Multi-layer co-extrusion composite iyinqubo yokukhiqiza eyinhlanganisela eluhlaza, ikakhulukazi embonini yamanje yokupakisha ukudla, izinto ezingavuthiwe ezisetshenziswayo ngokuvamile ziyizinto ezigunyazwe yi-United States Food and Health and Safety Agency, futhi izinto zokusetshenziswa zinikezwa ngokufana ungqimba ngepayipi elikhethekile lokuthutha.Akukho ukuvezwa kwezinto ezingavuthiwe kanye nokungcoliswa kwemvelo enqubweni yokucubungula.Isendlalelo saso sokuphetha senziwe nge-LLDPE eguquliwe njengempahla eluhlaza, engeyona into enobuthi emvelweni, ekudleni nasemzimbeni womuntu futhi ngeke ivele inhlanganisela yendabuko eyomile, okungukuthi, lokho okubizwa ngokuthi yi-solvent residue phenomenon, ngaphandle kokungcola kwegesi engcolile;Iphinde yehluke ekuhlanganiseni okomile, ukuhlanganisa okungancibilikiyo kanye nenqubo evamile yokuhlanganisa ungqimba olulodwa, futhi idinga ihhavini yokomisa ukuze iphathwe, ngakho ukusetshenziswa kwamandla nakho kuncane.Ngaphezu kwalokho, inqubo yenhlanganisela ye-multi-layer co-extrusion nayo inezinzuzo ezilandelayo.
(1) Inqubo yenhlanganisela ye-multi-layer co-extrusion co-extrusion engabizi kakhulu isebenzisa izinhlobonhlobo zamareyini anemisebenzi ehlukene.Inqubo eyodwa kuphela yokubumba i- blow ingasetshenziswa ukwenza imikhiqizo yefilimu eyinhlanganisela enemisebenzi eminingi, enganciphisa izindleko zokukhiqiza.Ngaphezu kwalokho, kungase futhi kunciphise ukusebenza okudingekayo kwezinto zokusetshenziswa kwe-resin zibe ukushuba okuncane, futhi ubukhulu obuncane bongqimba olulodwa bungafinyelela ku-2 ~ 3 μ m.Kunganciphisa kakhulu ukusetshenziswa kwe-resin ebizayo, ngaleyo ndlela kunciphise izindleko zezinto ezibonakalayo.
(2) Ubuchwepheshe obuguquguqukayo be-multi-layer co-extrusion bungafanisa izinto ezingavuthiwe ezihlukahlukene ezinhlanganisela ezahlukene ezisebenzisa ngokugcwele izinto zokusetshenziswa ezinezakhiwo ezahlukene kanye nefomu ngesikhathi esisodwa.Ayinqunyelwe yizicaciso zomkhiqizo ezifanele zemakethe futhi ingahlangabezana ngokuphumelelayo nezidingo zezikhathi zokupakisha ezihlukene.Uma izingqimba eziningi, ukuguquguquka komklamo wesakhiwo kanye nezindleko eziphansi.
(3) Ukusebenza okuphezulu kwenhlanganisela yokusebenza kwe-co-extrusion inqubo eyinhlanganisela ihlanganisa ingcina encibilikisiwe nesisekelo se-resin.Le nqubo inamandla amakhulu okucwecwa okuvamise ukuthi afike ku-3N/15mm noma ngaphezulu okuyikhona elungele izinto zokupakisha ezijwayelekile.Ngemikhiqizo enezidingo zamandla aphezulu wekhasi, i-thermosensitive resin ingangezwa ukuze ihlanganise.Khonamanjalo, amandla ekhasi angafinyelela ku-14N/15mm, noma ngaphezulu.
(4) Imikhiqizo eyinhlanganisela ye-multi-layer co-extruded ingafaka cishe zonke izinkundla zokupakisha, okuhlanganisa ukudla, imikhiqizo yansuku zonke yamakhemikhali, iziphuzo, imithi, amafilimu okuvikela ngisho nemikhiqizo yasemkhathini.Njengamanje, imikhiqizo eminingi ehlanganisiwe eyomile e-China yamukele inqubo ye-co-extrusion phesheya.Amashubhu okuxubha amazinyo angakwazi ukukhiqizwa ngenqubo eyomile eyinhlanganisela.Imikhiqizo ehlanganisiwe yepulasitiki ye-aluminium yephepha.I-Aerospace neminye imikhiqizo ibuye ibonakale ngenqubo ye-co-extrusion.Ngocwaningo olujulile kanye nokuqanjwa okusha okuqhubekayo kwe-coextrusion composite resin, ubuchwepheshe kanye nemishini, inhlanganisela ye-multi-layer coextrusion izonwetshwa ibe yibanga elibanzi.
Isikhathi sokuthumela: Apr-17-2023