Polyvinyl chloride (PVC) ke polymer e entsoeng ke polymerization ea vinyl chloride monomer (VCM) moo ho nang le lintho tse qalang tse kang li-peroxide le metsoako ea azo kapa ka mokhoa oa polymerization ea free radical tlas'a ts'ebetso ea khanya kapa mocheso. PVC ke thepa ea polymer e sebelisang athomo ea chlorine ho nkela athomo ea hydrogen sebaka ka har'a polyethylene, 'me li-homopolymer tsa vinyl chloride le li-copolymer tsa vinyl chloride li bitsoa li-resin tsa vinyl chloride.
Liketane tsa limolek'hule tsa PVC li na le liathomo tse matla tsa chlorine tse nang le matla a phahameng a limolek'hule, tse etsang hore lihlahisoa tsa PVC li be thata haholoanyane, li be thata, 'me li utloahale hantle ka mechini, 'me li na le ho lieha ha malakabe ho babatsehang (ho lieha ha malakabe ho bolela thepa eo ntho e nang le eona kapa eo thepa e nang le eona kamora kalafo ho liehisa ho ata ha malakabe haholo); leha ho le joalo, boleng ba eona ba dielectric constant le dielectric angle tangent li kholo ho feta tsa PE.
Resin ea PVC e na le palo e nyane ea litlamo tse habeli, liketane tse nang le makala le masala a qalang a setseng karabelong ea polymerization, hammoho le liathomo tsa chlorine le haedrojene pakeng tsa liathomo tse peli tse haufi tsa khabone, tse tlosoang klorini habonolo, e leng se fellang ka karabelo ea ho senyeha ha PVC habonolo tlas'a ts'ebetso ea khanya le mocheso. Ka hona, lihlahisoa tsa PVC li hloka ho eketsa li-stabilizer tsa mocheso, tse kang calcium-zinc heat stabilizer, barium-zinc heat stabilizer, lead salt heat stabilizer, organic tin stabilizer, jj.
Lisebelisoa tse ka sehloohong
PVC e tla ka mefuta e fapaneng mme e ka sebetsoa ka litsela tse fapaneng, ho kenyeletsoa ho tobetsa, ho ntša, ho kenya le ho penta. Lipolasitiki tsa PVC li sebelisoa hangata tlhahisong ea lifilimi, letlalo la maiketsetso, ho kenya lithapo le likhoele ka har'a mocheso, lihlahisoa tse thata, fatše, thepa ea ka tlung, lisebelisoa tsa lipapali, jj.
Lihlahisoa tsa PVC ka kakaretso li arotsoe ka mekhahlelo e 3: e thata, e thata hanyane le e bonolo. Lihlahisoa tse thata le tse thata hanyane li sebetsoa ntle le plasticizer kapa ka bongata bo bonyenyane, ha lihlahisoa tse bonolo li sebetsoa ka bongata bo boholo ba plasticizer. Kamora ho eketsa li-plasticizer, mocheso oa phetoho ea khalase o ka theoloa, e leng se etsang hore ho be bonolo ho sebetsa mochesong o tlase le ho eketsa ho tenyetseha le polasetiki ea ketane ea limolek'hule, le ho etsa hore ho khonehe ho etsa lihlahisoa tse bonolo tse tenyetsehang mochesong oa kamore.
1. Liprofaele tsa PVC
E sebelisoa haholo-holo bakeng sa ho etsa mamati le lifensetere le thepa e bolokang matla.
2. Liphaephe tsa PVC
Liphaephe tsa PVC li na le mefuta e mengata, ts'ebetso e ntle haholo le mefuta e mengata ea ts'ebeliso, 'me li na le boemo ba bohlokoa' marakeng.
3. Lifilimi tsa PVC
PVC e ka etsoa filimi e bonaletsang kapa e mebala e nang le botenya bo boletsoeng ka ho sebelisa khalendara, 'me filimi e hlahisoang ke mokhoa ona e bitsoa filimi e nang le khalendara. Lisebelisoa tse tala tsa PVC tse nang le granular li ka boela tsa bululeloa filiming ho sebelisoa mechine ea ho bopa ka blow molding, 'me filimi e hlahisoang ke mokhoa ona e bitsoa filimi ea ho bopa ka blow molding. Filimi e ka sebelisoa bakeng sa merero e mengata 'me e ka sebetsoa ka mekotla, lijase tsa pula, masela a tafole, likharetene, lintho tsa ho bapala tse phaphamalang, jj. ka ho seha le ho koala mocheso. Lifilimi tse pharaletseng tse bonaletsang li ka sebelisoa ho haha li-greenhouse le li-greenhouse tsa polasetiki, kapa tsa sebelisoa e le lifilimi tsa fatše.
4. Boto ea PVC
E eketsoa ka sehatsetsi, setlolo le se tlatsang, 'me ka mor'a ho kopanya, PVC e ka ntšoa ka har'a liphaephe tse thata tse fapaneng tsa caliber, liphaephe tse bōpehileng joaloka le liphaephe tse kobehileng ka extruder, 'me ea sebelisoa e le phaephe e theohelang tlase, phaephe ea metsi a nooang, sekoahelo sa terata ea motlakase kapa sehatsetsi sa litepisi. Maqephe a calendered aa kopana 'me a hatelloa ka mocheso ho etsa maqephe a thata a botenya bo fapaneng. Maqephe a ka sehoa ka libopeho tse lakatsehang ebe a kopanngoa ka moea o chesang ho sebelisoa lithupa tsa PVC tsa ho tjheseletsa ka har'a litanka tse fapaneng tsa polokelo tse hanelang lik'hemik'hale, liphaephe le lijana, jj.
5. Lihlahisoa tse bonolo tsa PVC
Ha o sebedisa extruder, e ka ntshetswa ka hara diphaephe, dithapo, dithapo, jj.; ha o sebedisa mochini wa ho enta o nang le dibopeho tse fapaneng, o ka etswa meqathatso ya polasetiki, diphaephe tsa dieta, dislipper, dibapadi, dikarolo tsa koloi, jj.
6. Lisebelisoa tsa ho paka tsa PVC
Lihlahisoa tsa PVC bakeng sa ho paka haholo-holo bakeng sa mefuta e fapaneng ea lijana, filimi le lakane e thata. Lijana tsa PVC li hlahisoa haholo-holo bakeng sa metsi a liminerale, lino, libotlolo tsa litlolo, empa hape le bakeng sa ho paka oli e hloekisitsoeng.
7. Lithako tsa PVC le fatše
Siding ea PVC e sebelisoa haholo ho nkela lithaele tsa aluminium sebaka, ntle le karolo ea resin ea PVC, likarolo tse ling kaofela ke thepa e sebelisitsoeng hape, likhomaretsi, li-filler le likarolo tse ling, tse sebelisoang haholo-holo mokatong oa boema-fofane le libakeng tse ling tsa mobu o thata.
8. Lihlahisoa tsa bareki tsa PVC
Lihlahisoa tsa PVC li ka fumanoa hohle bophelong ba rona ba letsatsi le letsatsi. PVC e sebelisetsoa ho etsa matlalo a maiketsetso a fapaneng bakeng sa mekotla ea mekotla, lihlahisoa tsa lipapali tse kang basketball, libolo tsa bolo ea maoto le libolo tsa rugby. E boetse e sebelisetsoa ho etsa junifomo le mabanta a khethehileng a lisebelisoa tsa tšireletso. Masela a PVC bakeng sa liaparo hangata ke masela a monyang (ha ho hlokahale ho roala) joalo ka li-poncho, borikhoe ba masea, lijakete tsa letlalo la maiketsetso le lieta tse fapaneng tsa pula. PVC e boetse e sebelisoa lihlahisoa tse ngata tsa lipapali le boithabiso tse kang lintho tsa ho bapala, lirekoto le thepa ea lipapali.
Nako ea poso: Phupu-19-2023