Polyvinyl joala CAS:25213-24-5

Polao e tahang ea polyvinyl (PVA) e sebelisoa haholo indastering e fapaneng ka lebaka la thepa ea eona e ikhethang. Indastering ea sekhomaretsi, e sebetsa e le motsoako oa bohlokoa mefuteng e fapaneng, e fana ka thepa e matla ea ho kopanya lits'ebetsong ho tloha ho likhomaretsi tsa lehong ho ea ho likhomaretsi tsa pampiri. Bokhoni ba eona ba ho qhibiliha ha metsi le ho etsa filimi bo etsa hore e be ea bohlokoa tlhahisong ea thepa ea ho paka e qhibilihang metsing, mekotla ea ho hlatsoetsa liaparo, le lisebelisoa tsa boholo ba masela, e fana ka litharollo bakeng sa litlhoko tsa ho paka tse mosa tikolohong le tse qhibilihang. Indastering ea masela, PVA e sebelisoa haholo e le sesebelisoa sa ho lekanya boholo ba warp ho ntlafatsa ts'ebetso ea ho loha, ho fana ka matla le ho tenyetseha ho likhoele. Ho feta moo, e sebetsa e le colloid e sireletsang tlhahisong ea li-copolymer tse thehiloeng ho vinyl acetate le e le sehokelo khatisong ea pigment. Ho feta moo, PVA e bapala karolo ea bohlokoa indastering ea pampiri, moo e sebelisoang e le sesebelisoa sa boholo ba bokaholimo ho ntlafatsa matla a pampiri, ho hatisoa habonolo le ho monya enke. Liindasteri tsa meriana le tsa lijo li sebelisa PVA tlhahisong ea li-capsule, e le sesebelisoa sa ho roala matlapa, le ho theheng lifilimi tse jeoang bakeng sa ho paka lijo. Ho ikamahanya ha eona le lintho tse phelang le tlhaho ea eona e seng chefo le hona ho etsa hore PVA e be thepa ea bohlokoa lits'ebetsong tsa bongaka, ho kenyeletsoa le karolo ea ho roala maqeba, litsamaiso tsa ho fana ka meriana, le li-scaffold tsa boenjiniere ba lisele. Ka kakaretso, lits'ebetso tse fapaneng tsa PVA li totobatsa bohlokoa ba eona e le polymer e feto-fetohang makaleng a fapaneng a indasteri le a khoebo.