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01. Phapang pakeng tsa hydroxypropyl methyl ea bohata le hydroxypropyl methyl ea boleng bo holimo Ponahalo: Setache se hloekileng HPCM e bonahala e tšoana haholo, pakeng tsa 0.3 le 0.4 g/ml. Amylum e tlama ho starch kahoo HPCM ke mokelikeli 'me ha e na khatello e ngata joaloka li-detoxifier tse tloaelehileng. Maemo: starch e tletseng starch, hpm ...Bala haholoanyane»
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Basebelisi ba bangata ha ba ele hloko bothata ba mocheso oa gel oa hydroxypropyl methylcellulose. Matsatsing ana, hydroxypropyl methylcellulose hangata e khetholloa ho latela viscosity, empa bakeng sa libaka tse ling tse khethehileng le liindasteri tse khethehileng, ke viscosity feela ea sehlahisoa e bonts'ang...Bala haholoanyane»
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Ho na le mabaka a mangata a amang ts'ebeliso ea hydroxypropyl methylcellulose HPMC thepa ea kaho, haholo-holo plaster e thehiloeng ho gypsum, ka tsela e latelang: 1 Ho boloka metsi Hydroxypropyl methylcellulose bakeng sa kaho e thibela ho monngoa ha metsi ka bongata ke substrate, le ha gyp...Bala haholoanyane»
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Motswako o le mong o na le mefokolo ho ntlafatseng tshebetso ya gypsum slurry. Haeba tshebetso ya gypsum seretse e le ho fihlella diphetho tse kgotsofatsang le ho fihlela ditlhoko tse fapaneng tsa tshebediso, ho hlokahala hore ho kopantswe dikhemikhale, di-admixture, di-filler le thepa e fapaneng mme ho...Bala haholoanyane»
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Hydroxypropyl methylcellulose – seretse sa masonry Ntlafatsa kgomarelo le bokaholimo ba masonry, le ho ntlafatsa ho boloka metsi, e le hore matla a seretse a ka ntlafala. Ho tlotsa le ho ntlafala ha polasetiki bakeng sa thepa e ntlafetseng ya tshebediso, ho nolofatsa tshebediso ho boloka nako le ho ntlafatsa...Bala haholoanyane»
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Cellulose hydroxypropyl methyl ether e entsoe ka cellulose ea k'hothone e hloekileng haholo ka ho etherification e khethehileng tlas'a maemo a alkaline. phello: 1. Indasteri ea kaho: Jwalo ka moemeli ea bolokang metsi le ea thibelang seretse sa samente, e ka etsa hore seretse se pompehe. Ka plaster, gypsum, putty powder kapa...Bala haholoanyane»
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1. Mocheso oa gel (tharollo ea 0.2%) 50-90°C. 2. E qhibiliha ka metsing le boholo ba polar c le karolo e loketseng ea ethanol/metsi, propanol/metsi, dichloroethane, jj., ha e qhibilihe ka har'a ether, acetone, ethanol e felletseng, 'me e ruruhe ho ba tharollo e hlakileng kapa e nang le mongobo hanyane ka har'a metsi a batang. Metsi ...Bala haholoanyane»
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MC ke methyl cellulose, e entsoeng ka ether ea cellulose ka ho phekola k'hothone e hloekisitsoeng ka alkali, ho sebelisoa methane chloride e le moemeli oa etherification, le ho feta letotong la liketso. Ka kakaretso, tekanyo ea ho nkeloa sebaka ke 1.6 ~ 2.0, 'me ho qhibiliha ha eona ho fapane ka likhato tse fapaneng tsa o ...Bala haholoanyane»
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Hydroxypropyl methylcellulose ea sehlopha sa lik'hemik'hale sa letsatsi le letsatsi ke polymer ea maiketsetso e entsoeng ka linter tsa k'hothone tsa cellulose tsa tlhaho ka phetoho ea etherification. Cellulose ether ke sehlahisoa sa cellulose ea tlhaho. Tlhahiso ea ether ea cellulose e fapane le li-polymer tsa maiketsetso. Ke eona ea motheo ka ho fetisisa...Bala haholoanyane»
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Ho eketsa hydroxypropyl methylcellulose ho etsa phofo ea putty, viscosity ea eona ha ho bonolo ho e etsa e kholo haholo, e kholo haholo e tla baka ho se sebetse hantle, joale hydroxypropyl methylcellulose e hloka viscosity e kae bakeng sa phofo ea putty? A re e sekasekeng bakeng sa bohle. Ho molemo ho eketsa hydroxypropyl methylc...Bala haholoanyane»
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Ho seretse sa samente le slurry e thehiloeng ho gypsum, hydroxypropyl methylcellulose e bapala karolo ea ho boloka metsi le ho a tiisa, 'me e ka ntlafatsa ho khomarela le ho hanyetsa ho salla ha slurry ka katleho. Lintho tse kang mocheso oa moea, mocheso le lebelo la khatello ea moea li tla ama ho feto-fetoha ha...Bala haholoanyane»
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1. Mathata a tloaelehileng phofong ea putty Ho omisa ka potlako: Sena se bakoa haholo ke bongata ba phofo ea calcium ea lime e ekelitsoeng (e kholo haholo, bongata ba phofo ea calcium ea lime e sebelisitsoeng foromong ea putty bo ka fokotsoa ka nepo) bo amana le sekhahla sa ho boloka metsi sa faeba, 'me bo boetse bo amana le ho...Bala haholoanyane»