HPMC Hydroxypropyl methyl celluloseMudhaka resimende negypsum slurry, zvinonyanya kuita basa rekuchengetedza mvura nekukora, zvinogona kuvandudza kunamatira uye kuramba kudonha kwedhaka.
Kupisa kwemhepo, tembiricha uye kumanikidzwa kwemhepo zvinogona kukanganisa mwero wekubuda kwemvura mumidziyo yesimbi nesimende uye yakagadzirwa negypsum. Saka mumwaka yakasiyana, kuwedzera hydroxypropyl methyl cellulose huwandu hwakafanana hwemugumisiro wekuchengetedza mvura yechigadzirwa kune misiyano yakati siyanei. Mukugadzirwa kwekongiri, mhedzisiro yekuchengetedza mvura yeslurry inogona kugadziriswa nekuwedzera kana kuderedza huwandu hweHPMC. Kuchengetwa kwemvura kwemethyl cellulose ether pakupisa kwakanyanya chiratidzo chakakosha chekusiyanisa mhando yemethyl cellulose ether.
Zvakanakisahydroxypropyl methyl cellulosezvigadzirwa zvakatevedzana zvinogona kugadzirisa dambudziko rekuchengetedza mvura pasi pekupisa kwakanyanya. Munguva yekupisa kwakanyanya, kunyanya munzvimbo dzinopisa uye dzakaoma uye kuvaka kwakatetepa parutivi rwezuva, kudiwa kweHPMC yemhando yepamusoro kuvandudza kuchengetedza mvura kweslurry; hydroxypropyl methyl cellulose (HPMC), kufanana kwakanaka kwazvo, iboka re hydroxypropyl yeokisijeni neokisijeni zvakagoverwa zvakaenzana pamwe chete necheni ye cellulose, zvinogona kuvandudza hydroxyl ne ether oxygen nemvura pane kiyi yekubatanidza hydrogen bonding ability, kugadzira mvura isina mvura, kuitira kuti inyatso dzora mamiriro ekunze anokonzerwa nekuoma kwemvura, iwane mvura yakawanda yekuchengetedza.
Mhando yepamusoro yehydroxypropyl methyl cellulose inogona kupararira zvakaenzana uye zvinobudirira mumidziyo yesimbi nesimende uye plaster, uye kurongedza zvidimbu zvese zvakasimba, uye kugadzira jira refirimu rinonyorovesa, hunyoro huri pasi pevhu kwenguva yakareba hunoburitswa zvishoma nezvishoma, uye inorganic cementitious material hydration reaction, kuitira kuti ive nechokwadi chekuti zvinhu zvine simba rekusunga uye simba rekumanikidza.
Mukuvaka, kuti tiwane simba rekuchengetedza mvura, tinofanira kuwedzera mhando yepamusoroHPMCzvigadzirwa zvinoenderana nefomula, zvikasadaro, pachava nekuoma nekukurumidza kunokonzerwa nekusakwana kwemvura, kudzikira kwesimba, kutsemuka, matambudziko emhando yemadhiramu asina chinhu uye kubuda kwemhando, asiwo kuwedzera kuoma kwevashandi pakuvaka. Sezvo tembiricha ichidzikira, huwandu hwemvura HPMC hunogona kudzikiswa zvishoma nezvishoma, uye mhedzisiro imwechete yekuchengetedza mvura inogona kuwanikwa.
Nguva yekutumira: Kubvumbi-26-2024