2、 Fa'atatauga fa'apitoa o le PVDC fa'apipi'i membrane i Saina:
Ua amata e Saina le faʻaaogaina o le PVDC resin talu mai le amataga o le 1980s.Muamua, o le fanau mai o le ham sausage na faʻafeiloaʻi ai le ata PVDC i Saina.Ona talepeina lea e kamupani Saina le poloka o le Iunaite Setete ma Iapani i luga o lenei tekinolosi ma faʻafeiloaʻi le gaosiga o tekonolosi ma meafaigaluega a le PVDC ata tifaga.Faatasi ai ma le faʻaauau pea o le tuputupu aʻe o le tamaoaiga o le atunuʻu o Saina ma le faʻaleleia atili o meafaitino ma aganuu a tagata, o loʻo faʻateleina foi le maualuga o manaʻoga mo afifi.O le tele ma le tele o afifi aoga o loʻo faʻaaogaina lautele i itu uma o le tamaoaiga o le atunuʻu ma le soifuaga o tagata.O le PVDC o se ta'ita'i i le 'ausiapusa pa puipui maualugafausaga tau lelei ma faatuatuaina susu, okesene ma le manogi pa.
Talu ai e sili atu le malamalama o tagata uma i le PVDC casing film, o iinei o le a tatou taulai atu ai i metotia faʻapitoa ma meatotino o le PVDC composite film.O le ata tu'ufa'atasia e faia ai fa'aletonu o mea ta'itasi, e tu'uina atu ai le ta'aloga atoatoa i lana fa'atinoga sili ona lelei, ma e iai uiga e leai se mea e tasi.Metotia tu'ufa'atasi masani o le PVDC:
Ufiufi, mago, solvent-free, vevela-liusuavai, co-extrusion, ma isi. I le taimi nei, o le gaosiga i totonu o le atunuu o le PVDC composite ata tifaga e masani lava ona faʻaaogaina auala faʻapipiʻi, auala mago, solvent-free ma co-extrusion auala:
1) PVDC ufiufi ata tifaga
O le PVDC latex coating o loʻo faʻaogaina i luga o le mea (OPP, PA, PE, PET, ma isi) e fausia ai se ata faʻapipiʻi e faʻaleleia ai le gaioiga o le kesi o le substrate.Uiga fa'atinoga:
Pa puipui lelei;O le mafiafia o le PVDC layer e masani lava 2 ~ 3um, ma tau maualalo;E le mafai ona tatalia kuka vevela maualuga.
2) PVDC laminated membrane composite
E aofia ai le tele o ata tifaga tasi, ma o vaega taʻitasi e faʻapipiʻi ma faʻapipiʻi.E mafai ona vaevaeina i:
Lamination mago (solvent) ma lamination e leai se solvent.
Uiga fa'atinoga:
A. Faatasi ai mameatotino pa puipui maualuga ma fausaga fetuutuunai, e mafai ona tuʻufaʻatasia ma BOPA, CPP, CPE, BOPP, BOPET, PVC ma isi ata tifaga (mo se faʻataʻitaʻiga, BOPP, PET, PA e mafai ona faʻaaogaina e pei o le pito i fafo o lomitusi, PE, CPP ma isi faʻamaufaʻailoga lelei faʻamaufaʻailoga e mafai ona faʻaaogaina. e pei o le faʻamaufaʻailoga faʻamaufaʻailoga, e mafai ona faʻaaogaina le lelei o le paʻu o le PA e pei o le puncture resistance layer, ma le PVDC e mafai ona faʻaaogaina e fai ma pa puipui e poloka ai le okesene ma le vai).
B. Tete'e lelei vevela.E mafai ona faia i le vevela maualuga ma le maualalo o le vevela faʻafefete faʻatulagaina ata tifaga faʻatasi ma le vevela o le - 20 ℃ ~ 121 ℃;
Lelei faʻainisinia ma faʻamaufaʻailoga faʻamaufaʻailoga, talafeagai mo le tele o masini afifiina, lolomi lanu, faʻatapulaʻaina i ata tifaga tasi, i le taimi nei o le mafiafia o vaega taʻitasi e le mafai ona matua manifinifi ma le numera o faʻapipiʻi faʻapipiʻi e le tatau ona tele naua (masani e le sili atu. nai lo le 5 laulau).
3) PVDC multilayer faʻatasi faʻapipiʻiina ata tifaga
O le tele o palasitika e extruded e le tele o extruders i le taimi e tasi e ala i se ulu oti e fausia ai se ata tifaga ma faatulagaga faatulagaina, tuʻuina atu interlayer manino, fusi mau ma faifai pea interlayer mafiafia.E tusa ai ma auala eseese faia, e mafai ona vaevaeina i le co-extrusion feula ata ma co-extrusion lafo ata tifaga.O mea PVDC e masani ona faʻaaogaina e fai ma pa puipui vaeluaga o ata tuʻufaʻatasia.Uiga faʻatinoga: maualuga pa puipui, tumama lelei, faʻapipiʻi resin e faʻaaogaina mo le faʻapipiʻiina, aloese mai le faʻafitauli o le soliga o totoe i le mago tuʻufaʻatasia (solvent-based), ma e mafai ona kuka i lalo ifo o le 100 tikeri;E mafai ona fa'agasolo le ata e ala ile fa'aogaina ole vevela lona lua e ala ile fa'aogaina ole gaosiga ole lala;E tele laulau e mafai ona fai, a o lea ua oo i le 13 laulau.O le mafiafia o le interlayer e mafai ona matua manifinifi, lea e mafai ona faʻasaoina le aofaʻi o resini ma le tau maualuga ma maua ai se tau sili atu ona taugofie.
Taimi meli: Iuni-06-2023