litaba-banner

litaba

Phello ea viscosity ea cellulose ether ho thepa ea seretse sa gypsum

Viscosity ke karolo ea bohlokoa ea thepa ea cellulose ether. Ha re bua ka kakaretso, ha viscosity e phahame, ho tla ba le phello e ntle ea ho boloka metsi ea seretse sa gypsum. Leha ho le joalo, ha viscosity e phahame, boima ba molek'hule ea cellulose ether bo phahame, 'me ho qhibiliha ha cellulose ether ho fokotseha ka tsela e nepahetseng. Ha li-viscosity li phahame, ho totobetse haholoanyane hore phello e teteaneng e ntse e le teng, empa ha e lekane. Ha li-viscosity li phahame, seretse se metsi se tla khomarela haholoanyane, mohahong, ts'ebetso ea ho khomarela scraper le ho khomarela holimo ho substrate. Empa ha ho na thuso ho eketsa matla a sebopeho sa seretse se metsi ka boeona. Ho phaella moo, nakong ea kaho, ts'ebetso ea ts'ebetso ea seretse se metsi e khahlanong le ho fokotseha ha e totobetse. Ka lehlakoreng le leng, methyl cellulose e fetotsoeng e nang le viscosity e tlase ho isa bohareng e bonts'itse ntlafatso ea matla a sebopeho sa seretse se metsi. Lisebelisoa tsa lerako la mohaho hangata li na le li-porous, li na le ho monya metsi. 'Me lisebelisoa tsa ho haha ​​​​gypsum tse sebelisetsoang ho haha ​​​​marako, ka mor'a ho eketsa modulation oa metsi leboteng, mongobo o bonolo ho kenngoa ke lerako, e leng se etsang hore gypsum e hloke mongobo o hlokahalang bakeng sa hydration, e bakang mathata a ho haha ​​​​pola le ho fokotsa matla a tlamahano. , ka hona ho na le mapetsong, moropa o se nang letho, spalling le mathata a mang a boleng. Ho ntlafatsa ho boloka metsi a thepa ea ho haha ​​​​gypsum ho ka rarolla bothata ba boleng ba kaho le ho ntlafatsa matla a tlamahano le lerako. Ka hona, moemeli oa ho boloka metsi o fetohile e 'ngoe ea li-additives tsa bohlokoa tsa thepa ea mohaho oa gypsum.https://www.longouchem.com/hpmc/

Bakeng sa ho nolofatsa kaho, ho sebelisoa lisebelisoa tsa phofo ea moaho joalo ka samente, sekhomaretsi, plaster e kopanyang le plaster putty, 'me gypsum retarder e eketsoa tlhahiso ho lelefatsa nako ea kaho ea pente ea plaster, hobane ts'ebetso ea hydration ea hemihydrate. gypsum e thibetsoe ka ho eketsa retarder ho gypsum, mofuta ona oa gypsum paste o hloka ho lula leboteng lihora tse 1-2 pele o beha, 'me boholo ba marako a na le thepa ea ho monya metsi, haholo-holo, lisebelisoa tse ncha tsa lerako tse bobebe tse kang marako a litene, marako a konkreite e nang le moea o motlakase, liphanele tse nang le liphahlo tse nang le mocheso o kentsoeng, kahoo ho etsa kalafo e bolokang metsi ea gypsum slurry, ho qoba ho fetisetsoa ha metsi a mang leboteng, ho etsa hore pente ea gypsum e thatafalloe ha khaello ea metsi e sa phethoe. , etsa hore gypsum le lebota bokaholimo sebaka karohano karohano, khetla. Ho eketsa moemeli oa ho boloka metsi ke ho boloka mongobo o teng ka har'a pente ea gypsum, ho etsa bonnete ba ho arabela ha hydration ea gypsum paste ho sebopeho, kahoo ho netefatsa matla a tlamo. Lintho tse tloaelehileng tse bolokang metsi ke li-cellulose ethers, tse kang Methyl cellulose (MC) , hypromellose (HPMChydroxyethyl methyl cellulose (HEMC), joalo-joalo. Ntle le moo, joala ba polyvinyl, sodium alginate, starch e fetotsoeng, diatomite le phofo e sa tloaelehang ea lefats'e le tsona li ka sebelisoa ho ntlafatsa ho boloka metsi.https://www.longouchem.com/modcell-hemc-lh80m-for-wall-putty-product/

 


Nako ea poso: Jul-26-2023