Izakhiwo zeamafilimu ama-multilayer co-extrudedzingahlukaniswa zibe izigaba ezimbili, okuyisakhiwo esilinganayo (A/B/A) kanye nesakhiwo esingasimethrikhi (A/B/C).Njengamanje, amafilimu e-barrier e-China akhiwe ikakhulukazi izingqimba ezi-5, izingqimba ezingu-7, izingqimba ezingu-8 nezingu-9.Isendlalelo sesakhiwo esilinganayo seIsithiyo se-multilayer co-extrusioni-diaphragm yakhiwe izinhlobo ezintathu zezendlalelo ezisebenzayo, okuyi-barrier layer, i-adhesive layer kanye nesendlalelo sokusekela.
Isendlalelo sesithiyo: ungqimba lwesithiyo lunemisebenzi yokumelana komoyampilo, ukumelana nomswakama kanye nokuvimbela ukuvuza kukawoyela.Ngokulawulwa kwezinto ezisetshenziswayo zongqimba nokuqina, ukusebenza kwesithiyo sezinto zefilimu kungalungiswa ukuze kuhlangatshezwane nezidingo zokupakisha ezihlukene (izinto zokuvimbela ezivame ukusetshenziswa emakethe zifaka i-PA, EVOH, PVDC, njll.
Isendlalelo esisekelayo: ngokuvamile, izinto zesakhiwo ezilinganayo zinezendlalelo ezimbili ezisekelayo.Isendlalelo sangaphakathi sisetshenziselwa ukuvalwa kokushisa, okuwungqimba oluvala ukushisa, kuyilapho ungqimba lwangaphandle lusetshenziswa ngokuqondile njengesendlalelo sangaphandle noma ungqimba lokunyathelisa lwefilimu yokupakisha.Isendlalelo sokusekela sizoba namandla amahle okusebenza, ukusebenza kokuvala ukushisa, ukumelana nomhwamuko wamanzi, ukukhanya nokuphrinta.Izinto ezijwayelekile zalesi sendlalelo yi-LDPE noma i-LDPE/LLDPE yokuhlanganisa izinto.
Isendlalelo esibophezelayo: indima yongqimba oluyisibopho ukubopha isendlalelo sokuvimbela kanye nesendlalelo sokusekela ukuze kuqinisekiswe amandla okuxebuka phakathi kwezingqimba.Ukukhethwa kwempahla yesendlalelo esibophezelayo nogqinsi ngokuvamile kuncike ezintweni zesendlalelo sokusekela kanye nesendlalelo sokuvimbela kanye namandla okubopha adingekayo ukuze kunqunywe into yokunamathela esetshenziselwa isendlalelo sokubopha.
Ngesikhathi esifanayo, ukushuba kwesendlalelo ngasinye kungalungiswa ngenqubo ye-extrusion.Ngokulungisa ukushuba kwesendlalelo sesithiyo kanye nenani lezinto zokusetshenziswa, ifilimu enezakhiwo ezihlukene zokuvimbela ingakhiqizwa ngokuguquguqukayo.Izinto zokubeka uphawu lokushisa zingashintshwa futhi zilungiswe ukuze zihlangabezane nezidingo zokupakishwa okuhlukile.I-multilayer kanye ne-multi-functional co-extrusion composite iyisiqondiso esivamile sokuthuthukiswa kwezinto zefilimu zokupakisha esikhathini esizayo.
Ukuze kunwetshwe impilo yeshalofu yokudla kwamanje kanye nokupakishwa kwezidakamizwa, izinto eziningi zokupakisha zisebenzisa amafilimu ayinhlanganisela ye-multilayer co-extruded.Ekusetshenzisweni, kubonisa ngokugcwele izici ezinhle kakhulu zokuqinisekisa ikhwalithi, isitoreji esibandayo, ukuvikelwa kokunambitha, impilo yeshalofu ende, ukumelana ne-asidi ne-alkali, ukumelana nomswakama nokubanda, ukumelana nokushisa, ukushisa okuphansi nokumelana nokugcinwa okubandayo, namandla aphezulu kakhulu.
Isikhathi sokuthumela: Apr-03-2023