Metswako ya PVC e itshetlehile hodima motswako wa PVC polymer RESIN le ditlatsetso tse fanang ka motswako o hlokahalang bakeng sa tshebediso ya ho qetela (Diphaephe kapa Diprofaele tse Tiileng kapa Diprofaele tse Fetohang kapa Maqephe). Motswako o etswa ka ho kopanya metsoako haufi-ufi, eo hamorao e fetolwang ho ba ntho e "jelled" tlasa tshusumetso ya mocheso le matla a ho kgaola. Ho itshetlehile ka mofuta wa PVC le ditlatsetso, motswako pele ho gelation e ka ba phofo e phallang ka bolokolohi (e tsejwang e le motswako o omileng) kapa mokelikeli ka mokgwa wa peista kapa tharollo.
Metswako ya PVC ha e etswa, ho sebediswa di-plasticizer, hore e be thepa e tenyetsehang, eo hangata e bitswang PVC-P.
Metswako ya PVC ha e entswe ntle le plasticizer bakeng sa ditshebediso tse thata e bitswa PVC-U.
Kakaretso ea PVC e ka aroloa ka tsela e latelang:
Phofo e tiileng ea motsoako o omileng oa PVC (e bitsoang Resin), e boetse e na le lisebelisoa tse ling tse kang li-stabilizer, li-additives, li-filler, li-reinforcement, le li-lake retardants, e tlameha ho kopanngoa ka matla mochining o kopanyang. Ho kopanya ho hasanya le ho aba ho bohlokoa, 'me kaofela ho latela meeli ea mocheso e hlalositsoeng hantle.
Ho ya ka sebopeho, resin ya PVC, plasticizer, Filler, stabilizer le disebediswa tse ding tse thusang di kenngwa ka hara ho kopanya ho chesang. Kamora metsotso e 6-10 ntsha metsi ka hara ho kopanya ho batang (metsotso e 6-10) bakeng sa ho kopanya pele. Motswako wa PVC o tlameha ho sebedisa ho kopanya ho batang ho thibela hore thepa e kgomarelane kamora ho kopanya ho chesang.
Motswako ka mora ho o kopanya ka polasetiki, ho o kopanya le ho o hasanya ka ho lekana ho tloha ho 155°C ho isa ho 165°C o fepuoa ho motsoako wa Cold. Motswako wa PVC o qhibilihang o a qhibilihiswa. Kamora ho o kopanya ka pellet, mocheso wa di-granule o ka theolelwa ho 35°C-40°C. Ebe kamora sefe e thothomelang e phodisitsweng ke moya, mocheso wa dikarolwana o theohela ka tlase ho mocheso wa kamore ho romelwa silong ya ho qetela ya sehlahiswa bakeng sa ho paka.
Nako ea poso: Pulungoana-11-2022