Zvinohydroxypropyl carboxymethyl celluloseMusika wekutengesa unowedzera, mutengo hauna kuenzana, maitiro ekukurumidza kubvisa hunhu hwehydroxypropyl methyl cellulose rave dambudziko guru! Saka sei kutonga hunhu hwehydroxypropyl methylcellulose? Chinhu chekutanga chekutarisa kuchena kwehydroxypropyl cellulose; Kunyange zvazvo kuchena hakugone kujeka kana HPMC yakakodzera kushandiswa, asi mukuita kwekugadzirisa kunewo vamwe vagadziri vakaipa vachawedzera mumiririri wekuchena, izvo zvichakuvadza hunhu hwayo. Asi kazhinji kutaura, ruzhinji rwe ether yakanaka kwazvo ye cellulose inochena zviri nani.
Chechipiri, kuona kupfava kwehydroxypropyl methyl cellulose: hydroxypropyl carboxymethyl cellulose particle size ye 80-100 mesh, 120 mesh less, hydroxyethyl cellulose HECHPMC inenge 100 mesh. HPMC ye 60-80 mesh yakawanda, general methyl cellulose yakapfava, kupararira kuri nani.
Mhinduro yekujeka kwe ether ye cellulose:HPMCKana ikaiswa mumvura kuti ibudise mhinduro yecolloid yakajeka, ona kuti kana mhinduro yacho yakakwira, mhinduro yacho yakakwira, iyo isinganyungudise chinhu chemakemikari yakaderera.
Kana chinhu chacho chapiswa, chinoiswa mu gelatin kana kuti chinosanganiswa uye chinozonyungudutswa. Chinonyungudika mumvura uye hachinyungudike mumvura. Konkriti ndiyo chinhu chakakosha chekubatanidza uye kubvisa musanganiswa weputty powder. Nheyo yayo isinganyungudike mvura ndeiyi inotevera: Mukuwedzera mvura nekukurunga upfu hwelatex nesimende hunonyungudika, upfu hwelatex hunoramba huchidzokera kuchimiro chepakutanga che emulsion, uye zvidimbu zvelatex zvinopararira zvakaenzana mu cement paste. Mushure mekunge simende yasangana nemvura, hydration reaction inotanga, uye Ca (OH) 2 solution inosvika pakuzara uye inoburitsa makristaro, uye panguva imwe chete, ettringite crystals uye calcium silicate hydrate colloids zvinogadzirwa. Zvidimbu zvelatex zvinoiswa pagel uye zvidimbu zvesimende zvisina mvura. Nekufambira mberi kwe hydration reaction, hydration products dziri kuwedzera, uye zvidimbu zvelatex zvinounganidzwa zvishoma nezvishoma munzvimbo isina zvinhu zvakasikwa zvakaita sesimende, uye zvinoumba close accumulation layer pamusoro pe cement gel. Nekuda kwekudzikira kwemvura yakaoma zvishoma nezvishoma, zvidimbu zvelatex zvakasanganiswa zvakasimba mumagels nemavoids zvinoungana kuti zvigadzire firimu rinoenderera mberi, zvichigadzira musanganiswa we cement paste interpenetrating matrix, uye zvinobatanidza cement paste nezvimwe zvinhu zveupfu.
Nguva yekutumira: Kubvumbi-28-2024