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Hydroxypropyl methylcellulose (HPMC) ke polymer e feto-fetohang e sebelisoang haholo indastering e fapaneng, ho kenyeletsoa kaho, meriana, lijo le litlolo. Kahong, HPMC e bapala karolo ea bohlokoa e le tlatsetso linthong tse thehiloeng samente, haholo-holo ho ntlafatseng matla a ho kopanya. 1.Int...Bala haholoanyane»
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MC ke methyl cellulose, e fumanoang ka ho phekola k'hothone e hloekisitsoeng ka alkali, ho sebelisoa methyl chloride e le moemeli oa etherifying, le ho etsa cellulose ether ka letoto la liketso. Ka kakaretso, tekanyo ea ho nkeloa sebaka ke 1.6 ~ 2.0, 'me ho qhibiliha ho boetse ho fapane ka likhato tse fapaneng ...Bala haholoanyane»
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Moetsi oa HPMC hydroxypropyl methyl cellulose mohlahisi oa fektheri ea feme ea rekisang kantle ho naha Tšebeliso e kholo ea HPMC ke efe? HPMC e ka aroloa ka: sehlopha sa kaho, sehlopha sa lijo le sehlopha sa bongaka ka tšebeliso. HPMC e sebelisoa haholo thepa ea kaho, liphahlo, li-resin tsa maiketsetso, li-ceramic, meriana, lijo, liaparo...Bala haholoanyane»
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Cellulose ether ke motsoako oa polymer o nang le sebopeho sa ether se entsoeng ka cellulose. Lesale le leng le le leng la glucosyl ka har'a macromolecule ea cellulose le na le lihlopha tse tharo tsa hydroxyl, sehlopha sa mantlha sa hydroxyl athomong ea botšelela ea carbon, sehlopha sa bobeli sa hydroxyl athomong ea bobeli le ea boraro ea carbon, le hydrog...Bala haholoanyane»
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Cellulose ether e tla lelefatsa nako ea ho beha peista ea samente kapa letlooa la seretse, e liehise kinetics ea hydration ea samente, e leng molemo ho ntlafatsa nako ea ts'ebetso ea thepa ea motheo ea samente, e ntlafatse botsitso le ho putlama ha konkreite kamora tahlehelo, empa hape e ka liehisa tsoelo-pele ea kaho, haholo-holo ...Bala haholoanyane»
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Bakeng sa ts'ebeliso ea seretse se metsi, hydroxypropyl methylcellulose e na le thepa e ntle ea ho teteana, e ka eketsa haholo bokhoni ba ho kopanya pakeng tsa seretse se metsi le lera la motheo, 'me e ka boela ea ntlafatsa ts'ebetso ea ho thibela ho sag ea seretse, kahoo e sebelisoa haholo ho plaster Mortar, leboteng la kantle ...Bala haholoanyane»
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Tšusumetso ea ho teteana ha ether ea cellulose e itšetlehile ka: tekanyo ea polymerization ea ether ea cellulose, mahloriso a tharollo, sekhahla sa ho beola, mocheso le maemo a mang. Thepa ea gelling ea tharollo e ikhetha ho alkyl cellulose le li-derivatives tsa eona tse fetotsoeng. Thepa ea gelation ke r...Bala haholoanyane»
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1. Mocheso oa metsi Ho ea ka mothapo oa ho lokolloa ha mocheso oa metsi ha nako e ntse e ea, ts'ebetso ea metsi a samente hangata e arotsoe ka mekhahlelo e mehlano, e leng, nako ea pele ea metsi (0~15min), nako ea ho kenya (15min~4h), nako ea ho potlakisa le ho beha (4h~8h), ho fokotsa lebelo ...Bala haholoanyane»
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Tšebelisong ea thepa ea kaho, hydroxypropyl methylcellulose ke sesebelisoa se sebelisoang haholo sa thepa ea kaho, 'me hydroxypropyl methylcellulose e sebelisoa haholo indastering' me e na le mefuta e fapaneng. Hydroxypropyl methylcellulose e ka aroloa ka mefuta ea hang-hang ea metsi a batang le mofuta oa ho qhibiliha ho chesang, hammoho le...Bala haholoanyane»
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Ho putty, seretse sa samente le slurry e thehiloeng ho gypsum, HPMC hydroxypropyl methylcellulose ether e bapala karolo ea ho boloka metsi le ho a tiisa, 'me e ka ntlafatsa ka katleho ho khomarela le ho hanyetsa ho sag ha slurry. Lintlha tse kang mocheso oa moea, mocheso le lebelo la khatello ea moea li tla...Bala haholoanyane»
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Hydroxypropyl methyl cellulose (HPMC) ke mofuta oa ether ea cellulose e seng ea ionic e entsoeng ka k'hothone ea polymer ea tlhaho ka letoto la mekhoa ea lik'hemik'hale. Indastering ea kaho, tšebeliso e kholo ea hydroxypropyl methylcellulose ke efe? 1, seretse sa samente: ho ntlafatsa tekanyo ea ho hasana ha lehlabathe la samente, g...Bala haholoanyane»
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Li arotsoe ho latela lintho tse nkeloang sebaka, li-ether tsa cellulose li ka aroloa ka li-ether tse le 'ngoe le li-ether tse tsoakiloeng; li arotsoe ho latela ho qhibiliha, li-ether tsa cellulose li ka aroloa ka tse qhibilihang metsing le tse sa qhibiliheng metsing. Mokhoa o ka sehloohong oa ho arola cellulose ether ke ho arola ho latela ioni...Bala haholoanyane»