Filimi ea polasetiki e le thepa ea khatiso, e hatisoa e le mokotla oa ho paka, o nang le khanya le pepeneneng, o hanyetsang mongobo le oksijene, o tiisa moea hantle, o thata le o hanyetsang ho mena, o boreleli, o ka sireletsa sehlahisoa, 'me o ka hlahisa sebopeho sa sehlahisoa,' mala le melemo e meng. Ka nts'etsopele ea indasteri ea petrochemical, mefuta e mengata ea filimi ea polasetiki, polyethylene (PE) ea polasetiki e sebelisoang hangata, polyvinyl chloride (PVC), polystyrene (PS), polyester film (PET), polypropylene (PP), nylon (PA) jj. Ho phaella moo, ho na le mefuta e meng e mengata ea filimi ea polasetiki, moetsi oa liphutheloana ea tenyetsehang oa Shunfa o nahana hore hoa hlokahala ho utloisisa litšobotsi tsa filimi ea polasetiki pele ho mekotla ea liphutheloana e ikhethileng. E hlophisitse ka ho khetheha litšobotsi tsa mefuta e 11 ea filimi ea polasetiki tlas'a mokotla oa liphutheloana bakeng sa litšupiso tsa hau.
1. Polyvinyl chloride (PVC)
Melemo ea filimi ea PVC le PET e tšoana, 'me e tšoana le litšobotsi tsa ho pepeneneng, ho hema habonolo, ho hanyetsa asiti le alkali. Mekotla e mengata ea lijo ea pele e entsoe ka mekotla ea PVC. Leha ho le joalo, PVC e ka 'na ea ntša lik'hemik'hale ka lebaka la ho se polymere ho sa fellang ha li-monomer tse ling ts'ebetsong ea tlhahiso, kahoo ha ea lokela ho tlatsa lintho tsa boleng ba lijo, 'me tse ngata li fetohile mekotla ea ho paka ea PET, e tšoaeang letšoao la thepa e le Nomoro ea 3.
2. Polystyrene (PS)
Ho monya metsi ha filimi ea PS ho tlase, empa botsitso ba eona bo betere, 'me e ka sebetsoa ka ho thunya die, ho tobetsa die, ho ntša le ho etsa thermoforming. Ka kakaretso, e arotsoe ka ho ntša foam le ho ntša foam mekhahlelo e 'meli ho latela hore na e fetile ts'ebetsong ea ho ntša foam. PS e sa koaheloang e sebelisoa haholo-holo lisebelisoa tsa kaho, lintho tsa ho bapala, lisebelisoa tsa ho ngola, jj., 'me hangata e ka etsoa ka lijana tse tletseng lihlahisoa tsa lebese tse belisitsoeng, jj. Lilemong tsa morao tjena, e boetse e sebelisoa haholo ho etseng lijana tsa tafole tse lahloang, 'me letšoao la thepa ke Nomoro ea 6.
3. Polypropylene (PP)
Filimi e tloaelehileng ea PP e amohela ho bōptjoa ha mollo, mokhoa o bonolo le litšenyehelo tse tlase, empa ts'ebetso ea optical e tlase hanyane ho feta CPP le BOPP. Tšobotsi e kholo ka ho fetisisa ea PP ke ho hanyetsa mocheso o phahameng (hoo e ka bang -20 ° C ~120 ° C), 'me ntlha ea ho qhibiliha e holimo ho 167 ° C, e loketseng ho tlatsa lebese la soya, lebese la raese le lihlahisoa tse ling tse hlokang ho bolaoa ke mouoane. Bothata ba eona bo phahame ho feta PE, e sebelisetsoang ho etsa likheo tsa lijana, 'me letšoao la thepa ke No. 5. Ka kakaretso, PP e na le bothata bo phahameng, 'me bokaholimo bo benya haholoanyane, 'me ha bo hlahise monko o bohale ha bo cha, ha PE e na le monko o boima oa likerese.
4. Filimi ea Polyester (PET)
Filimi ea polyester (PET) ke polasetiki ea boenjiniere ea thermoplastic. Thepa e tšesaane ea filimi e entsoe ka lakane e teteaneng ka mokhoa oa ho ntša le ho otlolla mahlakoreng a mabeli. Filimi ea polyester e khetholloa ka litšobotsi tse ntle tsa mechini, ho tiea ho hoholo, ho thatafala le ho tiea, ho hanyetsa ho phunyeha, ho hanyetsa khohlano, ho hanyetsa mocheso o phahameng le o tlase, ho hanyetsa lik'hemik'hale, ho hanyetsa oli, ho tiea ha moea le ho boloka monko o motle, ke e 'ngoe ea li-substrate tsa filimi e kopaneng tse hanyetsang ho kenella ha metsi tse sebelisoang hangata, empa ho hanyetsa corona ho fokola, theko e holimo. Botenya ba filimi hangata ke 0.12mm, e sebelisoang hangata e le thepa ea ka ntle ea mokotla oa ho paka lijo, 'me ho hatisoa ho hotle. Tšoaea letšoao la thepa 1 sehlahisoa sa polasetiki.
5. Nailone (PA)
Filimi ea polasetiki ea nylon (polyamide PA) hajoale ke tlhahiso ea indasteri ea mefuta e mengata, eo mefuta e meholo e sebelisoang ho hlahisa filimi ke nylon 6, nylon 12, nylon 66 jj. Filimi ea nylon ke filimi e thata haholo, e pepeneneng hantle, 'me e na le khanya e ntle. Matla a ho tensile, matla a ho tensile, ho hanyetsa mocheso o phahameng le o tlase, ho hanyetsa oli, ho hanyetsa solvent ea organic, ho hanyetsa ho tsofala le ho hanyetsa ho phunya li ntle haholo, 'me filimi e bonolo haholo, e hanyetsa oksijene e ntle haholo, empa mokoallo oa mouoane oa metsi o mobe, ho monya mongobo, ho kenella ha mongobo ho hoholo, 'me ho koala mocheso ho fokola. E loketse ho paka lintho tse thata, joalo ka lijo tse mafura, lijo tse halikiloeng, ho paka lijo ka vacuum, ho pheha lijo, jj.
6. Polyethylene e nang le Boima bo Holimo (HDPE)
Filimi ea HDPE e bitsoa geomembrane kapa filimi e sa keneleng metsi. Sebaka sa eona sa ho qhibiliha se ka ba 110℃-130℃, 'me boima ba eona bo lekanyelitsoeng ke 0.918-0.965kg/cm3. Ke resin ea thermoplastic e nang le kristale e phahameng, e seng polar, ponahalo ea pele ea HDPE e tšoeu joaloka lebese, karolong e nyane ea sefapano ea tekanyo e itseng ea ho bonaletsa. E na le khanyetso e ntle mochesong o phahameng le o tlase le khanyetso ea tšusumetso, esita le mochesong o tlase oa -40F. Botsitso ba eona ba lik'hemik'hale, ho tiea, ho tiea, matla a mechini, matla a ho tabola li ntle haholo, 'me ka keketseho ea bongata, thepa ea mechini, thepa ea thibelo, matla a ho tsikinyeha le khanyetso ea mocheso li tla ntlafala ka ho loketseng, li ka hanela asiti, alkali, li-solvents tsa manyolo le mafome a mang. Tlhaloso: boholo ba eona ha e bonahale, e ikutloa joaloka boka, ho hohla mokotla oa polasetiki kapa ho hohla ha ho hohla.
7. Polyethylene e nang le Boima bo Tlase (LDPE)
Botebo ba filimi ea LDPE bo tlase, bo bonolo, bo hanyetsa mocheso o tlase, khanyetso ea tšusumetso botsitso ba lik'hemik'hale bo botle, maemong a tloaelehileng acid (ntle le acid e matla ea oxidizing), alkali, ts'enyeho ea letsoai, e nang le insulation e ntle ea motlakase. LDPE e sebelisoa haholo ka mekotleng ea polasetiki, e tšoaeang letšoao la thepa ke Nomoro ea 4, 'me lihlahisoa tsa eona li sebelisoa haholo-holo boenjiniere ba sechaba le masimo a temo, joalo ka geomemofilm, filimi ea temo (filimi ea shed, filimi ea mulch, filimi ea polokelo, jj.). Tlhaloso: Mokotla oa polasetiki o entsoeng ka LDPE o bonolo, ha o ruruhe haholo ha o luba, filimi ea polasetiki ea kantle e bonolo ebile e bonolo ho e tabola LDPE, 'me ha filimi ea PVC kapa PP e tetebela le ho ba thata haholoanyane.
8. Polyvinyl Alcohol (PVA)
Filimi e kopantsoeng ea polyvinyl alcohol (PVA) ke filimi e nang le thepa e phahameng ea thibelo e entsoeng ka ho koahela mokelikeli o fetotsoeng oa polyvinyl alcohol o qhibilihang metsing holim'a substrate ea polasetiki ea polyethylene. Hobane filimi e kopantsoeng ea polyvinyl alcohol e nang le lithibelo tse phahameng e na le thepa e ntle ea thibelo 'me e fihlela litlhoko tsa tšireletso ea tikoloho, tebello ea' maraka ea thepa ena ea ho paka e khanya haholo, 'me ho na le sebaka se seholo sa' maraka indastering ea lijo.
9. Filimi ea polypropylene ea ho lahla (CPP)
Filimi ea polypropylene ea ho lahla (CPP) ke mofuta oa filimi ea extrusion e sa otlolleng, e sa shebaneng le eona e hlahisoang ke ho pholisa ha melting casting quench. E khetholloa ka lebelo le potlakileng la tlhahiso, chai e ngata, pepeneneng ea filimi, khanya, thepa ea thibelo, bonolo, ho tšoana ha botenya ho hotle, e ka mamella ho pheha mocheso o phahameng (mocheso oa ho pheha o fetang 120 ° C) le ho tiisa mocheso o tlase (mocheso oa ho tiisa mocheso o ka tlase ho 125 ° C), tekano ea ts'ebetso e ntle haholo. Mosebetsi oa ho latela o kang oa ho hatisa, motsoako o bonolo, o sebelisoa haholo masela, lijo, liphutheloana tsa letsatsi le letsatsi, etsa substrate ea ka hare ea liphutheloana tse kopantsoeng, e ka eketsa bophelo ba lijo, ea eketsa botle.
10. Filimi ea polypropylene e habeli (BOPP)
Filimi ea polypropylene ea biaxial (BOPP) ke thepa ea mokotla oa ho paka o tenyetsehang o bonaletsang o qapiloeng lilemong tsa bo-1960, e leng mohala o khethehileng oa tlhahiso ho kopanya thepa e tala ea polypropylene le lisebelisoa tse sebetsang, ho qhibiliha le ho kopanya, ho etsa maqephe, ebe o etsa filimi ka ho otlolla. Filimi ena ha e na feela melemo ea ho ba le boima bo tlase, ho hanyetsa mafome le ho hanyetsa mocheso hantle ha resin ea pele ea PP, empa hape e na le litšobotsi tse ntle tsa optical, matla a phahameng a mechini, mehloli e ruileng ea thepa e tala, litšobotsi tse ntle tsa khatiso, 'me e ka kopanngoa le pampiri, PET le li-substrate tse ling. Ka tlhaloso e phahameng le khanya, ho monya enke hantle le ho khomarela ka ho koahela, matla a phahameng a ho tsitlella, litšobotsi tse ntle tsa thibelo ea oli, litšobotsi tse tlase tsa motlakase.
11. Filimi e entsoeng ka tšepe
Filimi e entsoeng ka tšepe e na le litšobotsi tsa filimi ea polasetiki le tšepe. Karolo ea ho penta ka aluminium holim'a filimi ke ho thibela khanya le ho thibela mahlaseli a ultraviolet, a atolosang bophelo ba lintho tse ka hare le ho ntlafatsa khanya ea filimi, a nkela foil ea aluminium sebaka ho isa bohōleng bo itseng, 'me hape a na le thepa e theko e tlase, e ntle le e ntle ea thibelo. Ka hona, filimi e entsoeng ka tšepe e sebelisoa haholo liphuthelong tse kopaneng, haholo-holo liphuthelong tsa libiskiti le liphuthelong tse ling tse omileng, tse nang le lijo tse ruruhileng, meriana le liphutheloana tsa litlolo.
Nako ea poso: Phupu-19-2023