HPMC Hydroxypropyl methyl celluloseka 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 ka mocheso o phahameng ke sesupo sa bohlokoa ho khetholla boleng ba methyl cellulose ether.
E kgabanehydroxypropyl methyl celluloselihlahisoa tsa letoto li ka rarolla bothata ba ho boloka metsi ka katleho 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.
Ka ho haha, e le ho finyella phello ea ho boloka metsi, ho hlokahala ho eketsa boleng bo phahamengHPMClihlahisoa ho ea ka mokhoa o hlophisitsoeng, ho seng joalo, ho tla ba le ho omisa ka potlako ho bakoang ke ho haella ha metsi, ho fokotsa matla, ho phunyeha, moqomo o se nang letho le mathata a boleng ba ho tšolla, empa hape ho eketsa bothata ba ho haha 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: Apr-26-2024