MHEC LH 620M

EipponCell MHEC LH 620M methyl hydroxyethyl cellulose e sebelisoa ho gypsum slurry ho fana ka phello e bonahalang e teteaneng.Ka mocheso oa kamore, ha viscosity le litekanyetso tsa cellulose ether li ntse li eketseha, phello ea eona e teteaneng e ba e hlakileng haholoanyane.Leha ho le joalo, ha mocheso o ntse o phahama, viscosity ea cellulose ether ea fokotseha, e leng ho fellang ka ho fokola ha phello ea eona e teteaneng.Sena se lebisa ho fokotseha ha khatello ea ho kuta lihlahisoa, viscosity ea polasetiki, le pseudoplasticity ea motsoako oa gypsum, e qetellang e baka ho se sebetse hantle.

Cellulose ether e ntlafatsa ho boloka metsi a gypsum.Leha ho le joalo, ha mocheso o ntse o eketseha, ho bolokoa ha metsi a gypsum e fetotsoeng ho fokotseha haholo mme ho bile ho lahleheloa ke phello ea ntlafatso ea ho boloka metsi ho 60 ° C.Sekhahla sa ho boloka metsi sa gypsum slurry se ntlafatsoa haholo ke cellulose ether, 'me sekhahla sa ho boloka metsi butle-butle se fihla boemong ba ho phalla ka ho eketseha ha litaba bakeng sa HPMC e fetotsoeng gypsum slurry e nang le li-viscosities tse fapaneng.Ka kakaretso, ho boloka metsi a gypsum ho lekana le viscosity ea cellulose ether, empa e na le phello e fokolang ho viscosity e phahameng.

Liphetoho tsa ho boloka metsi a cellulose ethers ka mocheso li amana haufi-ufi le microscopic morphology ea cellulose ethers mokhahlelong oa mokelikeli.Sebakeng se itseng, cellulose ether e atisa ho kopanya le ho theha mekhatlo e meholo ea colloidal, e thibela ka katleho litsela tsa ho fana ka metsi tsa motsoako oa gypsum ho finyella ho boloka metsi ka mokhoa o nepahetseng.Leha ho le joalo, ha mocheso o ntse o phahama, thepa ea gelation ea mocheso oa cellulose ether e etsa hore mekhatlo e meholo ea colloidal e neng e entsoe pele e qhalane hape, e leng se fellang ka ho fokotseha ha ho boloka metsi.