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Hobaneng u eketsa hydroxypropyl methylcellulose (HPMC) ho seretse se thehiloeng ho gypsum

Ka seretseng sa samente le seretse se thehiloeng ho gypsum,hydroxypropyl methylcellulosehaholo-holo e phetha karolo ea ho boloka metsi le ho teteaneng, e ka ntlafatsang ka katleho momahano le ho hanyetsa sag ea slurry.Lintlha tse kang mocheso oa moea, mocheso le khatello ea moea li tla ama sekhahla sa mouoane oa metsi seretseng sa samente le lihlahisoa tse thehiloeng ho gypsum.Ka hona, ka linako tse fapaneng tsa selemo, ho na le phapang pakeng tsa phello ea ho boloka metsi ea lihlahisoa tse nang le palo e lekanang ea hydroxypropyl methylcellulose e kentsoeng.Moahong o ikhethileng, phello ea ho boloka metsi ea slurry e ka fetoloa ka ho eketsa kapa ho fokotsa palo ea HPMC e kentsoeng.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 methylcellulose li ka rarolla bothata ba ho boloka metsi ka mocheso o phahameng.Linakong tsa mocheso o phahameng, haholo-holo libakeng tse chesang le tse omileng le kaho ea lera le tšesaane lehlakoreng le chabileng, HPMC ea boleng bo holimo ea hlokahala ho ntlafatsa ho boloka metsi a seretse.

HPMC ea boleng bo holimo, e nang le ts'ebetso e ntle haholo, lihlopha tsa eona tsa methoxy le hydroxypropoxy li ajoa ka mokhoa o lekanang hammoho le ketane ea molek'hule ea cellulose, e ka ntlafatsang bokhoni ba liathomo tsa oksijene holim'a hydroxyl le ether bonds ho kopana le metsi ho theha litlamo tsa hydrogen. metsi a sa lefelloeng a fetoha metsi a tlamiloeng, e le ho laola ka katleho mouoane oa metsi o bakoang ke mocheso o phahameng oa mocheso le ho finyella ho boloka metsi a phahameng.Metsi a hlokahala bakeng sa hydration bakeng sa ho beha lisebelisoa tsa samente tse kang samente le gypsum.Palo e nepahetseng ea HPMC e ka boloka metsi ka har'a seretse nako e telele ho lekana ho lumella ho beha le ho thatafatsa ho tsoela pele.

Palo ea HPMC e hlokahalang ho fumana matla a lekaneng a ho boloka metsi e ipapisitse le:

1. The absorbency ea lera motheo

2. Sebopeho sa seretse

3. Botenya ba seretse

4. Tlhokahalo ea metsi a seretse

5. Nako ea ho beha thepa ea cementitious

Hydroxypropyl methylcellulose ea boleng bo phahameng e ka qhalakanngoa ka mokhoa o ts'oanang le ka katleho ka seretse sa samente le lihlahisoa tse thehiloeng ho gypsum, 'me e phuthela likaroloana tsohle tse tiileng,' me e etsa filimi ea ho kolobisa, 'me mongobo o botlaaseng o lokolloa butle-butle ka nako e telele., 'me karabelo ea hydration e etsahala ka lintho tse sa tloaelehang tsa cementitious, ka tsela eo ho tiisa matla a ho kopanya le matla a khatello ea thepa.

setšoantšo

Ka hona, mohahong o phahameng oa mocheso oa lehlabula, e le ho finyella phello ea ho boloka metsi, hoa hlokahala ho eketsa lihlahisoa tsa boleng bo phahameng ba HPMC ka bongata bo lekaneng ho ea ka foromo, ho seng joalo, ho tla ba le hydration e sa lekaneng, ho fokotsa matla, ho senya, ho putlama le ho wela fatshe ho bakoang ke ho omisa kapele haholo.E boetse e eketsa bothata ba kaho bakeng sa basebetsi.Ha mocheso o ntse o fokotseha, palo ea tlatsetso ea HPMC e ka fokotsoa butle-butle, 'me phello e tšoanang ea ho boloka metsi e ka finyelloa.


Nako ea poso: Oct-20-2022