Multilayer coextrusion ata tifaga
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Kiliki FAQsQingdao Advanmatch Packaging's multi-layer co-extruded composite film e masani ona vaevaeina ifa'avae fa'avae, fa'aoga fa'atino ma fa'apipi'i e tusa ai ma galuega a vaega taʻitasi o le ata e tusa lava po o le a le aofaʻi o laupepa.
Fa'avae fa'avae: E masani lava, o le pito i totonu ma fafo o le ata tuʻufaʻatasia lea e tatau ona i ai lelei faʻaletino ma mea faʻainisinia, faʻapipiʻiina ma faʻaogaina meatotino ma faʻamaufaʻailoga vevela.O lo'o i ai le lelei o le fa'amaufa'ailogaina fa'amaufa'ailoga ma le fa'aogaina o le vevela ma le tau maualalo.I le taimi nei, o loʻo i ai foi le lagolago lelei ma le faʻatumauina o le aʻafiaga i luga o le faʻaogaina o galuega ma le maualuga maualuga i totonu o le paʻu tuʻufaʻatasia lea e fuafua ai le faʻamaualuga atoa o le paʻu tuʻufaʻatasia.O mea faʻavae e masani lava PE, PP, EVA, PET ma PS.
Fa'atonuga:O le coextrusion functional layer o afifiina ata e tele lava pa puipui, lea e masani lava o le ogatotonu o le tele-layer composite ata.E masani lava ona faʻaaogaina pa puipui e pei o EVOH, PVDC, PVA, PA, PET, ma isi. Faatasi ai ma i latou, o mea e sili ona faʻaaogaina pa puipui maualuga o le EVOH ma le PVDC, ma o le PA masani ma le PET e iai mea faʻapitoa faʻapitoa, o loʻo i totonu o mea paʻu medium. .
EVOH
Ethylene-vinyl alcohol copolymer o se ituaiga mea polymer e tu'ufa'atasia le fa'agaioiina o le ethylene polymer ma le pa puipui o le ethylene alcohol polymer.E matua manino lelei ma e lelei le iila.E sili atu le pa puipui o le EVOH i le kesi ma le suauu.O lona malosi faʻainisinia, fetuutuunai, faʻaofuofu teteʻe, teteʻe malulu ma le malosi i luga e sili ona lelei ma e sili ona lelei le gaosiga o gaioiga.O le pa puipui o le EVOH e faʻalagolago i mea o loʻo i totonu o le ethylene.O oloa o lo'o fa'atumuina i mea EVOH e aofia ai fa'amamafa, oloa susu, oloa aano o manufasi, oloa sisi, ma isi.
PVDC
Polyvinylidene chloride o se polymer o le vinylidene chloride (1,1-dichloroethylene).O le vevela o le pala o le homopolymer polyvinylidene chloride e maualalo ifo nai lo lona faʻafefeteina, o lea e faigata ai ona liusuavai.O le mea lea, PVDC o se mea afifiina o se copolymer o vinylidene chloride ma vinyl chloride o loʻo i ai le malosi lelei o le kesi, faʻafefeteina, lolomi lelei ma uiga faʻamaufaʻailoga vevela.I le amataga, sa masani ona faʻaaogaina mo le faʻapipiʻiina o le militeri.Ae na amata ona faʻaaogaina e fai ma ata e teu ai meaʻai i le 1950s.Aemaise lava le faʻapipiʻiina vave-maisa ma fou-tausia lea na atiina ae i le tele ma le faʻavaveina o tekonolosi faʻaonaponei faʻaonaponei ma le saoasaoa o olaga o tagata faʻaonaponei, o le suiga o microwave kuka ma le faʻalauteleina o le ola faʻatau o meaʻai ma vailaʻau na faia ai le faʻaogaina o le PVDC sili atu ona lauiloa.E mafai ona faia le PVDC i se ata manifinifi tele, ma faʻaitiitia ai le aofaʻi o mea mataʻutia ma tau afifiina, o loʻo tumau pea i aso nei.
Papa pipii
Ona o le le lelei affinity o nisi resins faavae ma resins vaega galue, e tatau ona tuu ni layers pipii i le va o nei laulau e lua e faatino ai le matafaioi o le kelu, ina ia fausia ai se ata "tuufaatasia" tuufaatasia.O le mea fa'apipi'i e fa'aogaina ai le resini pipii, e masani ona fa'aogaina maleic anhydride fa'apipi'i polyolefin ma ethylene-vinyl acetate copolymer (EVA).
Uiga ata tifaga fa'apipi'i fa'afuafua fa'atele:
1. Mea faʻapipiʻi maualuga: O le faʻaogaina o le polymer multilayer nai lo le polymerization monolayer e mafai ona faʻaleleia atili ai le pa puipui o le ata tifaga ma ausia ai le maualuga o le pa puipui o le okesene, vai, carbon dioxide, manogi, ma isi. Aemaise lava pe a filifilia EVOH ma PVDC e pei o mea pa puipui, o latou felauaiga okesene ma le ausa vai e mautinoa lava matua maualalo.
2. Malosiaga galuega: Ona o le tele o le filifilia o ata multilayer i le faʻaaogaina o meafaitino, e mafai ona filifilia le tele o resins e tusa ai ma le faʻaogaina o mea aoga o loʻo atagia atoa ai galuega o tulaga eseese, ina ia faʻaleleia ai le faʻatinoga o le co. -extrusion ata tifaga, e pei o le suauu tetee, susu tetee, vevela vevela tetee tetee, maualalo le vevela malulu malulu.E mafai ona faʻaaogaina mo le faʻapipiʻiina o le masini, faʻamaʻi faʻamaʻi ma faʻapipiʻi inflatable.
3. Tau maualalo: Pe a faʻatusatusa i le afifi tioata, faʻapipiʻi pepa alumini ma isi faʻapipiʻi palasitika e mafai ona ausia le paʻu tutusa.I le taimi lava e tasi, o ata faʻapipiʻi faʻatasi e sili atu le lelei i le tau.Mo se faʻataʻitaʻiga, ina ia mafai ona ausia le aʻafiaga tutusa, o le fitu-layer co-extruded film e sili atu le lelei o le tau nai lo le lima-layer co-extruded film.Talu ai ona o lona faʻaogaina faigofie, o le tau o ata tifaga na gaosia e mafai ona faʻaititia i le 10-20% pe a faʻatusatusa i le tau o faʻamago tuʻufaʻatasia ata ma isi ata tuʻufaʻatasia.
4. Fuafuaga fetuutuunai fausaga: faʻaaogaina mamanu fausaga eseese e faʻamalieina manaʻoga faʻamautinoaga lelei o oloa eseese.
