Afifi faʻamaufaʻailoga ma vevela faʻamaufaʻailogaina mea e faʻapea;

1. Afifiina metotia faʻamaufaʻailoga

O metotia o faʻamau faʻamau aofia ai vevela vevela, faʻamau faʻamau faʻamau, faʻamau faʻamau, ma isi vevela faʻamau faʻasino i le faʻaaogaina o le thermoplastic totonu vaega vaega i le multilayer tuʻufaʻatasi ata tifaga, lea e faʻamaluluina ai le faʻamau pe a vevela, ma faʻamalosia pe a o le vevela mafuaʻaga o aveʻese O le vevela faʻamau faʻamau, ufiufi ma vevela liusuavai e masani ona faʻaaogaina mea vevela faʻamaufaʻailogaina. Faʻamau malulu faʻasino i lena e mafai ona faʻamau e ala i le oomi e aunoa ma le faʻavevela. O le sili ona taatele malulu faʻamau faʻamau o le pito ufiufi faʻaaogaina luga o le pito o le afifi ato. O le faʻamau faʻamau e seasea faʻaaogaina i le tele-vaega mea afifi, na faʻaaoga mo afifi mea o loʻo i ai pepa.

2. O le vevela mea faʻamaufaʻailoga

(1)Polyethylene (PE) o se ituaiga o susu paʻepaʻe, translucent ma opaque waxy mautu. E toeititi leai se tofo, leai se vailaʻau ma e māmā atu nai lo le vai. PE macromolecular filifili e lelei fetuutuunai ma e faigofie ona faʻamalamalamaina. O se faigata mea i vevela potu. I le avea ai o se afifiina mea, o le autu le lelei o le PE o le le lava ea fufusi, maualuga permeability i kesi ma faaputuputu ausa, maualalo le malosi ma le vevela teteʻe; e faigofie ona faʻaleagaina e le malamalama, vevela ma le pou, o lea o le antioxidant ma le malamalama ma le faʻamautuina o le vevela e masani ona faʻaopopoina i oloa PE e puipuia ai le matua; E i ai le le lelei le siosiomaga popole i le siosiomaga teteʻe teteʻe, ma e le tetee atu i le pala o faʻateleina h2s04, HNO3 ma lona oxidant, ma o le a faʻatamaia e nisi aliphatic hydrocarbons poʻo chlorated hydrocarbons pe a vevela; o le lolomiga faʻatinoina o le PE e matitiva, ma o le laualuga e le-faʻatutu, o lea e tatau ona faia togafitiga corona i luma o le lolomiina ma le faʻamagoina fusia e faʻaleleia ai le vavalalata ma matutu fesoʻotaʻiga o vaitusi lolomi.

PE faʻaaogaina mo afifi faʻamau faʻamau afifi aofia ai aofia ai:
'Maualalo maualalo polyethylene (LDPE), lauiloa foi o le maualuga maualuga polyethylene;
② maualuga maualuga polyethylene (HI) PE, lauiloa foi o le maualalo o le mamafa polyethylene;
'Medium density polyethylene (nu) PE :); laina maualalo maualalo density polyethylene (LLDPE);
④ metallocene catalyzed polyethylene.

(2)O meatotino o lafo polypropylene ata tifaga (CPP) faʻaaogaina mo vevela faʻamaufaʻailoga mea e fai si eseʻese mai lena o le biaxial oriented polypropylene ona o lona eseese gaosiga gaioiga. O mea lelei ma le lelei o le CPP o loʻo faʻaalia i mea talafeagai o le "polypropylene".

(3) PVC (faʻapuʻupuʻu pei o le PVC) o se leai se lanu, malamalama ma malo resin ma malosi molemole polarity ma malosi intermolecular malosi, o lea e lelei malo ma maʻaʻa fagu palasitika.

O le PVC e taugofie ma sili atu ona faʻaaoga. E mafai ona faia i totonu maumaututū afifi pusa, manino malamalama ma fetuutuunai afifi ata tifaga ma foam palasitika cushioning mea. Ona o lona oona ma le pala, o lona faʻaaogaina ua faʻaitiitia ma faifai malie ona suia e isi mea.

(4) EVA (ethylene vinyl acetate copolymer) poly (ethylene vinyl acetate) (EVA) poly (ethylene vinyl acetate) (EVA) poly (ethylene vinyl acetate) (EVA) poly (ethylene vinyl acetate) (EVA) poly (ethylene vinyl acetate) ( EVA) poly (ethylene vinyl acetate) (EVA) poly (ethylene vinyl acetate) (eva-eva) poly (ethylene vinyl acetate) (EVA) poly (ethylene vinyl acetate) (EVA. EVA o se translucent pe laititi susu susu paʻu saunia e copolymerization o le ethylene ma vinylacetic acid vineka. O ana meatotino suia ma le anotusi o le lua monomers. O le mea lea, pe a filifilia le faʻataʻitaʻiga o le Eva, e tatau ona fuafuaina e tusa ai ma le faʻaaogaina, ma mafai ona faʻaaogaina o palasitika, pipiʻi vevela liusuavai ma ufiufi .
O le Eva o loʻo faʻaaogaina lautele o le pito i totonu o le tuʻufaʻatasia o ata tifaga ona o lona lelei faʻalelei ma maualalo le vevela faʻamaufaʻailoga malosi. E faʻaaogaina i mea e faʻapipiʻi ai, ufiufi, ufiufi, faʻaaogaina o le uaea ma le lanu e feaveaʻi ma ona faʻapipiʻi lelei (lelei poʻo se mea e mafai ona faʻaogaina faʻatasi ma le tele o mea o loʻo iai le aʻoga ma le aʻoaʻi)

(5)O le PVDC (polyvinylidene chloride) O le PVDC e masani ona faʻasino i le copolymer o le vinylidene chloride. O le polymer maua e polymerization i ai crystallinity maualuga, maualuga faʻamaluluina manatu (185-200'c) ma latalata i le decomposition vevela (210-2250). E i ai le le lelei gatasi ma lautele tackifier, o lea e faigata ai ona suia.
O le PVDC ose mea malosi ma malamalama e maualuga lona crystallinity ma samasama samasama. E i ai maualalo maualalo fua faatatau i le vai tofatumoana kesi, kesi ma sogisogi, ma e sili ona lelei susu tetee, ea fufusi ma taofia manogi. O se sili lelei maualuga tapulaʻa mea. E tetee i acid, alkali ma eseese solvents, suauu tetee, refractory ma oe lava tineia.