2, Tšebeliso e khethehileng ea lesela la motsoako oa PVDC Chaena:
China e qalile ts'ebeliso e sebetsang ea resin ea PVDC ho tloha mathoasong a lilemo tsa bo-1980.Taba ea pele, tsoalo ea boroso ea ham e hlahisitse filimi ea PVDC Chaena.Joale lik'hamphani tsa Machaena li ile tsa senya thibelo ea United States le Japane ho thekenoloji ena 'me tsa hlahisa theknoloji ea ho sebetsana le thepa ea filimi ea PVDC.Ka kholo e tsoelang pele ea moruo oa naha ea China le ntlafatso ea bophelo ba batho ba lintho tse bonahalang le setso, boemo ba tlhokahalo ea ho paka le bona boa eketseha.Liphutheloana tse ntseng li eketseha tse sebetsang li sebelisoa haholo likarolong tsohle tsa moruo oa naha le mekhoa ea boipheliso ea batho.PVDC ke moetapele ho fihlellengsephutheloana se phahameng sa mokoallosebopeho sa litšenyehelo se sebetsang hantle le mongobo o tšepahalang, tšitiso ea oksijene le monko.
Kaha motho e mong le e mong o na le tsebo e eketsehileng ea filimi ea PVDC ea casing, mona re tla tsepamisa maikutlo ho mekhoa ea theknoloji le thepa ea filimi e kopanetsoeng ea PVDC.Filimi e kopantsoeng e etsa hore ho be le mefokolo ea thepa e 'ngoe le e' ngoe, e fana ka papali e feletseng ho ts'ebetso ea eona e babatsehang, 'me e na le litšobotsi tseo thepa e le' ngoe e se nang eona.Mekhoa e tloaelehileng ea motsoako oa PVDC:
Ho roala, ho omella, ho se nang solvent, hot-melt, co-extrusion, joalo-joalo Hona joale, tlhahiso ea malapeng ea filimi e kopanetsoeng ea PVDC haholo-holo e amohela mokhoa oa ho roala, mokhoa o omileng, mokhoa o se nang solvent le co-extrusion:
1) filimi ea ho roala PVDC
PVDC latex coating e sebelisoa holim'a substrate (OPP, PA, PE, PET, joalo-joalo) ho theha filimi e kopanetsoeng ho ntlafatsa ts'ebetso ea thibelo ea khase ea substrate.Litšobotsi tsa ts'ebetso:
Tšitiso e ntle;Botenya ba PVDC lera ka kakaretso ke 2 ~ 3um, ka theko e tlase;Ha e khone ho mamella ho pheha mocheso o phahameng.
2) PVDC laminated composite lera
E entsoe ka lifilimi tse ngata tsa lera le le leng, 'me karolo e' ngoe le e 'ngoe e kopantsoe le sekhomaretsi.E ka aroloa ka:
Lamination e omileng (solvent) le lamination e se nang solvent.
Litšobotsi tsa ts'ebetso:
A. Kathepa e phahameng ea mokoallo le sebopeho se tenyetsehang, e ka kopanngoa le BOPA, CPP, CPE, BOPP, BOPET, PVC le lifilimi tse ling (mohlala, BOPP, PET, PA e ka sebelisoa e le sekhahla sa khatiso se ka holimo, PE, CPP le liphello tse ling tse ntle tsa ho tiisa mocheso li ka sebelisoa. e le lera la ho tiisa mocheso, PA's puncture resistance resistance e ka sebelisoa e le lera la ho phunya, 'me PVDC e ka sebelisoa e le lera le thibelang ho thibela oksijene le metsi).
B. Ho hanyetsa mocheso o motle.E ka etsoa ka mocheso o phahameng le mocheso o tlase o hanyetsanang le filimi e kopantsoeng le mocheso o hanyetsanang le - 20 ℃ ~ 121 ℃;
Thepa e ntle ea mochini le ho tiisa mocheso, e loketseng metjhini e fapaneng ea ho paka, khatiso ea mebala, e lekantsoeng ke filimi e le 'ngoe, ha ho ntse ho le joalo, botenya ba lera le leng le le leng le ke ke la fokola haholo mme palo ea likarolo tse kopaneng ha ea lokela ho ba ngata haholo (ka kakaretso ha ea lokela ho feta. ho feta 5 layers).
3) PVDC multilayer co-extruded composite filimi
Mefuta e fapaneng ea polasetiki e extruded ke extruder multiple ka nako e le 'ngoe ka lefu la hlooho ho theha filimi ka tlhophiso e hlophisehileng, ho hlaka interlayer phano, ka thata tlama le e tsitsitseng interlayer botenya.Ho ea ka mekhoa e fapaneng ea ho etsa, e ka aroloa ka filimi ea co-extrusion le filimi ea co-extrusion cast.Lisebelisoa tsa PVDC hangata li sebelisoa e le lera le thibelang le lipakeng tsa filimi e kopaneng.Litšobotsi tsa ts'ebetso: mokoallo o phahameng, bohloeki bo botle, resin ea sekhomaretsi e sebelisetsoa ho kopanya, ho qoba bothata ba masala a solvent ka har'a motsoako o omileng (solvent-based), 'me e ka pheha ka tlase ho likhato tse 100;Filimi e ka sebetsoa ka ho theha mocheso oa bobeli ka ho sebelisa tlhahiso ea lekala la phallo;Ho na le lihlopha tse ngata tse ka etsoang, 'me joale li fihlile ho 13 layers.Botenya ba interlayer bo ka etsoa bo tšesaane haholo, bo ka bolokang palo ea resin ka theko e phahameng le ho fumana ts'ebetso ea litšenyehelo tsa moruo.
Nako ea poso: Jun-06-2023