2, Ukusetshenziswa okuqondile kwe-PVDC ulwelwesi oluyinhlanganisela eChina:
I-China isiqale ukusetshenziswa okusebenzayo kwe-PVDC resin kusukela ekuqaleni kwawo-1980.Okokuqala, ukuzalwa kwesoseji le-ham kwethule ifilimu ye-PVDC eChina.Khona-ke izinkampani zaseShayina zaphula ukuvinjelwa kwe-United States neJapane kulobu buchwepheshe futhi zethula ubuchwepheshe bokucubungula kanye nemishini yefilimu ye-PVDC.Ngokukhula okuqhubekayo komnotho kazwelonke waseShayina kanye nokwenza ngcono kwempahla yabantu kanye nempilo yamasiko, izinga lesidingo sokupakisha liyakhula.Ukupakishwa okusebenzayo kuya ngokuya kusetshenziswa kakhulu kuzo zonke izici zomnotho wezwe kanye nezimpilo zabantu.I-PVDC ingumholi ekuzuzeniukupakishwa kwesithiyo esiphezuluisakhiwo izindleko ukusebenza kahle kanye nomswakama onokwethenjelwa, umoya-mpilo kanye nephunga umgoqo.
Njengoba wonke umuntu enolwazi olwengeziwe lwefilimu ye-PVDC casing, lapha sizogxila ezindleleni zobuchwepheshe kanye nezakhiwo zefilimu eyinhlanganisela ye-PVDC.Ifilimu eyinhlanganisela yenza ukushiyeka kwento ngayinye, inikeza ukudlala okuphelele ekusebenzeni kwayo okuhle kakhulu, futhi inezici into eyodwa engenazo.Izindlela ezijwayelekile eziyinhlanganisela ze-PVDC:
Ukwemboza, okomile, okungancibiliki, kuncibilike okushisayo, ukukhishwa okuhlangene, njll. Njengamanje, ukukhiqizwa kwasekhaya kwefilimu eyinhlanganisela ye-PVDC kusebenzisa kakhulu indlela yokumboza, indlela eyomile, indlela yokungancibiliki kanye ne-co-extrusion:
1) Ifilimu yokugqoka ye-PVDC
I-PVDC latex coating isetshenziswa ebusweni be-substrate (i-OPP, i-PA, i-PE, i-PET, njll.) ukuze kwakhiwe ifilimu ehlanganisiwe ukuze kuthuthukiswe ukusebenza kwesithiyo segesi se-substrate.Izici zokusebenza:
Umgoqo omuhle;Ugqinsi lwe-PVDC layer ngokuvamile luyi-2 ~ 3um, olunezindleko eziphansi;Ayikwazi ukumelana nokupheka kwezinga lokushisa eliphezulu.
2) Ulwelwesi oluhlanganisiwe lwe-PVDC
Yakhiwe ngamafilimu amaningi anongqimba olulodwa, futhi ungqimba ngalunye luhlanganiswe nokunamathela.Ingahlukaniswa ngokuthi:
I-lamination eyomile (i-solvent) kanye ne-solvent-free lamination.
Izici zokusebenza:
A. Ngehigh barrier impahla kanye nesakhiwo nezimo, ingahlanganiswa ne-BOPA, i-CPP, i-CPE, i-BOPP, i-BOPET, i-PVC namanye amafilimu (isibonelo, i-BOPP, i-PET, i-PA ingasetshenziswa njengesendlalelo sokunyathelisa esingaphandle, i-PE, i-CPP kanye neminye imiphumela emihle yokufaka uphawu okushisa ingasetshenziswa. njengesendlalelo sokuvala esishisayo, ukumelana nokubhoboza okuhle kwe-PA kungasetshenziswa njengesendlalelo sokumelana nokubhoboza, futhi i-PVDC ingasetshenziswa njengesendlalelo sokuvimbela ukuvimba umoya-mpilo namanzi).
B. Ukumelana kahle nezinga lokushisa.Ingenziwa ibe izinga lokushisa eliphezulu kanye nefilimu eyinhlanganisela yesakhiwo ephikisana nokushisa ephansi enokumelana nezinga lokushisa elingu-20 ℃~121 ℃;
Izakhiwo ezinhle zemishini nezokushisa, ezifanele imishini yokupakisha ehlukahlukene, ukuphrinta umbala, okunqunyelwe ifilimu eyodwa, okwamanje ubukhulu bengqimba ngayinye abukwazi ukuba mncane kakhulu futhi inani lezendlalelo eziyinhlanganisela akufanele libe likhulu kakhulu (ngokuvamile lingabi ngaphezu kwalokho. kunezendlalelo ezi-5).
3) Ifilimu eyinhlanganisela ye-PVDC enezingqimba eziningi
Amapulasitiki anhlobonhlobo akhishwa ama-extruder amaningi ngesikhathi esisodwa ngokusebenzisa i-die head ukuze enze ifilimu enokuhlelwa okuhlelekile, ukukhishwa kwe-interlayer okusobala, ukubopha okuqinile kanye nokuqina kwe-interlayer okungaguquki.Ngokwezindlela ezihlukene zokwakha, ingahlukaniswa ibe ifilimu eqhunyiswa yi-co-extrusion kanye nefilimu yabalingisi ye-co-extrusion.Izinto ze-PVDC ngokuvamile zisetshenziswa njengesendlalelo esimaphakathi sesithiyo sefilimu eyinhlanganisela.Izici zokusebenza: umgoqo ophezulu, ukuhlanzeka okuhle, i-resin adhesive isetshenziselwa ukubopha, ukugwema inkinga yezinsalela ze-solvent endaweni eyomile (i-solvent-based), futhi ingaphekwa ngaphansi kwama-degrees angu-100;Ifilimu ingacutshungulwa ngokubunjwa kwe-thermal yesibili ngokusebenzisa ukukhiqizwa kwegatsha lokugeleza;Ziningi izendlalelo ezingenziwa, futhi manje sezifinyelele izingqimba eziyi-13.Ugqinsi lwe-interlayer lungenziwa lube mncane kakhulu, olungasindisa inani leresin ngentengo ephezulu futhi kutholwe ukusebenza kwezindleko ukonga kakhulu.
Isikhathi sokuthumela: Jun-06-2023