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Hydroxypropyl methyl cellulose ka samente le plaster e thehiloeng ho gypsum

HPMC Hydroxypropyl methyl cellulose ka seretse sa samente le gypsum slurry, haholo-holo e bapala karolo ea ho boloka metsi le ho teteaneng, e ka ntlafatsa ka katleho ho khomarela le ho hanyetsa ha slurry.

Mocheso oa moea, mocheso le sekhahla sa khatello ea moea li ka ama sekhahla sa mouoane oa metsi seretseng sa samente le lihlahisoa tse thehiloeng ho gypsum.Kahoo ka linako tse fapaneng tsa selemo, ho kenyelletsa hydroxypropyl methyl cellulose palo e ts'oanang ea phello ea ho boloka metsi ea sehlahisoa ho na le phapang e itseng.Kaho ea konkreite, phello ea ho boloka metsi ea slurry e ka fetoloa ka ho eketsa kapa ho fokotsa palo ea HPMC.Ho boloka metsi a methyl cellulose ether mochesong o phahameng ke sesupo sa bohlokoa ho khetholla boleng ba methyl cellulose ether.

Lihlahisoa tse ntle tsa hydroxypropyl methyl cellulose li ka rarolla bothata ba ho boloka metsi tlas'a mocheso o phahameng.Nakong ea mocheso o phahameng, haholo-holo libakeng tse chesang le tse omileng le kaho e tšesaane ea lera ka lehlakoreng la letsatsi, tlhokahalo ea boleng bo phahameng ba HPMC ho ntlafatsa ho boloka metsi a slurry;hydroxypropyl methyl cellulose (HPMC), ho tšoana ho ntle haholo, ke lihlopha tsa oksijene le oksijene hydroxypropyl tse arolelanoang ka har'a ketane ea cellulose, li ka ntlafatsa hydroxyl le oksijene ea ether le metsi ka mokhoa oa bohlokoa oa ho kopanya hydrogen bonding, ho etsa metsi a mahala a hydration, e le ho laola ka katleho boemo ba leholimo bo chesang bo bakoang ke hore mongobo o fetohe mouoane, Finyella ho boloka metsi a mangata.

Boleng bo phahameng ba hydroxypropyl methyl cellulose e ka qhalakana ka mokhoa o ts'oanang le ka katleho ka har'a seretse sa samente le lihlahisoa tsa samente, 'me ea paka likaroloana tsohle tse tiileng,' me ea etsa lera la filimi e kolobisang, mongobo o botlaaseng ka nako e telele o lokollotsoe butle butle, le inorganic cementitious material hydration reaction. , e le ho netefatsa matla a tlamahano le matla a khatello ea thepa.

Kaho, e le ho finyella phello ea paballo ea metsi, ho hlokahala ho eketsa lihlahisoa tsa boleng bo phahameng ba HPMC ho ea ka foromo, ho seng joalo, ho tla ba le ho omisa ka potlako ho bakoang ke ho se lekane ha metsi, ho fokotsa matla, ho phunyeha, moqomo o sekoti le boleng ba ho tšolloa. mathata, empa hape eketsa bothata ba kaho ea basebetsi.Ha mocheso o fokotseha, palo ea metsi HPMC e ka fokotsoa butle-butle, 'me phello e tšoanang ea ho boloka metsi e ka finyelloa.


Nako ea poso: Dec-21-2021