Igipimo cy'ubushyuhe cya hydroxypropyl methylcellulose ni igipimo cy'ingenzi cyane. Ubushyuhe ntibugaragaza ubuziranenge. Ubushyuhe bwa selulose HPMC buterwa n'uburyo ikorwa. Ahantu hatandukanye ho gukoreshwa hagomba guhitamo selulose HPMC ifite ubushyuhe butandukanye, ntabwo ubushyuhe bwa selulose HPMC ari bwinshi, ahubwo ni byiza kurushaho! Igikwiye ni cyo gikwiye!
1. Kugenzura ubukana bw'amazi
Hydroxypropyl methylcellulose ifite umuvuduko mwinshi ntishobora gukora cellulose nyinshi cyane binyuze mu gusukura umwuka no gusimbuza azote mu ikorwa. Muri rusange, ikorwa rya cellulose ifite umuvuduko mwinshi mu Bushinwa ntirishobora kugenzurwa. Ariko, niba icyuma gipima umwuka wa ogisijeni gishobora gushyirwa mu gikoresho, ikorwa rya viscosity yacyo rishobora kugenzurwa mu buryo bw'ubukorano.
2. Gukoresha umukozi ushinzwe ishyirahamwe
Byongeye kandi, ukurikije umuvuduko wo gusimbuza azote, biroroshye gukora ibintu bifite ubushyuhe bwinshi uko ikoranabuhanga ryaba rimeze kose. Birumvikana ko urwego rwa polymerization y'ipamba itunganyijwe narwo ari ingenzi. Niba ibyo bidakora, bikora ukoresheje hydrophobic association. Hari agents zihuza muri aka gace mu Bushinwa. Ubwoko bw'agents zihuza ugomba guhitamo bufite ingaruka zikomeye ku mikorere y'umusaruro wa nyuma.
3. Ingano ya Hydroxypropyl
Ogisijeni isigaye muri reactor itera kwangirika kwa cellulose no kugabanuka k'uburemere bwa molekile, ariko ogisijeni isigaye ni nke, igihe cyose molekile zacitse zihujwe, ntabwo bigoye gukora viscosity nyinshi. Ariko, igipimo cyo kuzura gifitanye isano cyane n'ingano ya hydroxypropyl. Inganda zimwe na zimwe zishaka kugabanya ikiguzi n'igiciro gusa, ariko ntizifuza kongera ingano ya hydroxypropyl, bityo ubwiza ntibushobora kugera ku rwego rw'ibicuruzwa bisa n'ibyo mu mahanga.
4. Ibindi bintu
Igipimo cyo kubika amazi k'umusaruro gifitanye isano rikomeye na hydroxypropyl, ariko ku bijyanye n'uburyo bwose bwo gukora, kinagena igipimo cyo kubika amazi, ingaruka za alkali, igipimo cya methyl chloride na propylene oxide, ingano ya alkali n'amazi abikwa. Igipimo cy'ipamba itunganyijwe ni cyo kigena imikorere y'umusaruro.
Igihe cyo kohereza: Mata-04-2023