Carboxymethyl cellulose (Sodium Carboxymethyl Cellulose) e bitsoang CMC, ke motsoako oa polymer o sebetsang ka holim'a metsi, ke mofuta oa selulose e sa nkheng, e sa latsoeheng, e se nang chefo, e entsoeng ka k'hothone e monyang ka kalafo ea lik'hemik'hale. organic cellulose binder ke mofuta oa cellulose ether, 'me letsoai la sodium le sebelisoa hangata, kahoo lebitso la eona le felletseng le lokela ho bitsoa sodium carboxymethyl cellulose, e leng CMC-Na.
Joalo ka methyl cellulose, carboxymethyl cellulose e ka sebelisoa joalo ka sehlahiswa bakeng sa lisebelisoa tse refractory le joalo ka setlamo sa nakoana sa lisebelisoa tse refractory.
Sodium carboxymethyl cellulose ke polyelectrolyte ea maiketsetso, kahoo e ka sebelisoa e le dispersant le stabilizer bakeng sa slurries refractory le castables, hape ke setlamo sa nakoana se sebetsang hantle haholo. E na le melemo e latelang:
1. Carboxymethyl cellulose e ka ba adsorbed hantle holim'a likaroloana, ho kenella le ho kopanya likaroloana hantle, e le hore 'mele o matla oa ho hanyetsa o ka fumanoa;
2. Kaha carboxymethyl cellulose ke anionic polymer electrolyte, e ka fokotsa ho sebelisana pakeng tsa likaroloana ka mor'a hore e be adsorbed holim'a likaroloana, 'me e bapala karolo ea colloid ea dispersant le e sireletsang, kahoo e ntlafatsa boima le matla a sehlahisoa le ho fokotsa. kamora ho chesa. Inhomogeneity ea sebopeho sa mokhatlo;
3. Ho sebelisa carboxymethyl cellulose e le tlamahano, ha ho na molora ka mor'a ho chesa, 'me ho na le lintho tse fokolang tse fokolang, tse sa ameng mocheso oa tšebeliso ea sehlahisoa.
Likarolo tsa Sehlahisoa
1. CMC ke e tšoeu kapa e mosehla hanyenyane fibrous granular phofo, tasteless, odorless, bao e seng chefo, habonolo qhibilihang ka metsing, 'me e etsa pepenene viscous colloid, tharollo ke ho se nke lehlakore kapa hanyenyane alkaline. E ka bolokoa nako e telele ntle le ho senyeha, hape e tsitsitse tlas'a mocheso o tlase le khanya ea letsatsi. Leha ho le joalo, ka lebaka la phetoho e potlakileng ea mocheso, acidity le alkalinity ea tharollo e fetoha. Tlas'a tšusumetso ea mahlaseli a ultraviolet le likokoana-hloko, e tla boela e bake hydrolysis kapa oxidation, viscosity ea tharollo e tla fokotseha, esita le tharollo e tla senyeha. Haeba tharollo e hloka ho bolokoa nako e telele, li-preservative tse loketseng tse kang formaldehyde, phenol, benzoic acid, metsoako ea organic mercury, joalo-joalo li ka khethoa.
2. CMC e tšoana le li-electrolyte tse ling tsa polymer. Ha e qhibiliha, e qala ho hlahisa ketsahalo ea ho ruruha, 'me likaroloana li khomarelana ho etsa filimi kapa viscose, e leng se etsang hore ho se ke ha khoneha ho qhala, empa ho qhibiliha butle-butle. Ka hona, ha u lokisetsa tharollo ea eona ea metsi, haeba likaroloana li ka kolobisoa ka mokhoa o ts'oanang pele, tekanyo ea ho qhibiliha e ka eketseha haholo.
3. CMC ke hygroscopic. Sepakapakeng, karolelano ea metsi a CMC e eketseha ka ho eketseha ha mocheso oa moea mme e fokotseha ka ho eketseha ha mocheso oa moea. Ha mocheso o tloaelehileng oa mocheso oa kamore e le 80% -50%, metsi a leka-lekaneng a ka holimo ho 26%, 'me sehlahisoa sa metsi se na le 10% kapa ka tlaase ho moo. Ka hona, liphutheloana tsa lihlahisoa le polokelo li lokela ho ela hloko bopaki ba mongobo.
4. Zinki, koporo, lead, aluminium, silevera, tšepe, thini, chromium le matsoai a mang a tšepe a boima a ka fokotsa tharollo ea metsi a CMC. Ntle le acetate e entsoeng ka letsoai e entsoeng ka letsoai, precipitate e ntse e ka qhibiliha hape ka sodium hydroxide kapa ammonium hydroxide solution. .
5. Organic kapa inorganic acids le tsona li tla baka pula ho tharollo ea sehlahisoa sena. Boemo ba pula bo fapana ho ea ka mofuta le mahloriso a asiti. Ka kakaretso, pula e hlaha ha pH e le ka tlase ho 2.5, 'me e ka khutlisoa ka mor'a ho se nke lehlakore ka alkali.
6. Ka letsoai le kang calcium, magnesium le letsoai la tafole, ha e na phello ea pula ho tharollo ea CMC, empa e ama ho fokotseha ha viscosity.
7. CMC e lumellana le li-glues tse ling tse qhibilihang ka metsing, li-softeners le li-resin.
8. Lifilimi tse nkiloeng ho CMC, tse qoelisoang ka har'a acetone, benzene, butyl acetate, carbon tetrachloride, oli ea castor, oli ea poone, ethanol, ether, dichloroethane, petroleum, methanol, methyl acetate, methyl ethyl acetate mocheso oa kamore Ketone, toluene, turpentine, xylene, oli ea peanut, joalo-joalo li ka fetoha ka hare ho lihora tse 24
Nako ea poso: Nov-07-2022