Iyo yekuzvimisa-leveling dhaka inogona kuvimba nehuremu hwayo kuti iite hwaro hwakatsetseka, hwakatsetseka uye hwakasimba pane substrate yekuisa kana kubatanidza zvimwe zvinhu, uye panguva imwechete inogona kuita yakakura uye inoshanda kuvaka. Naizvozvo, kunyungudika kwemvura chinhu chakakosha chedhaka rekuzvimisa. Uye zvakare, inofanirwa kunge iine kumwe kuchengetedza kwemvura uye simba rekubatanidza, isina kusarura kwemvura chiitiko, uye kuve nehunhu hwekudzivirira kupisa uye kuderera kwekushisa kukwira.
Kazhinji, dhaka rekuzvimisa rinoda kuyerera kwakanaka, asi kunyungudika kwesamende chaiyo paste kunowanzo 10-300px chete; cellulose ether ndiyo inonyanya kuwedzera yedhaka yakagadzirira-yakasanganiswa, kunyange zvazvo mari yekuwedzera yakaderera zvikuru, inogona kuvandudza zvakanyanya kugadzirwa kweMortar, inogona kuvandudza kuwirirana, kushanda kwekushanda, kushanda kwekubatanidza uye kuchengetedza mvura kwedhaka. Inoita basa rinokosha zvikuru mumunda wedhaka rakagadzirwa rakagadzirwa.
1. Fluidity: Cellulose ether ine simba rinokosha pakuchengetedza mvura, kuwirirana uye kushanda kwekuvaka kwega-leveling mortar. Kunyanya sedhaka rekuzvimisa-leveling, fluidity chimwe chezviratidzo zvikuru zvekuongorora kuzvidzora kuita. Pasi pemamiriro ekuvimbisa kuumbwa kwakajairika kwedhaka, iyo fluidity yedhaka inogona kugadziriswa nekushandura huwandu hwe cellulose ether. Zvisinei, kana mari yacho yakanyanyisa, mvura yedhaka ichaderedzwa, saka chiyero che cellulose ether HPMC inofanira kudzorwa mukati mehutano hwakanaka.
2. Kuchengetwa kwemvura: Kuchengetwa kwemvura kwedhaka chiratidzo chakakosha chekuyera kugadzikana kwezvikamu zvemukati zvevhu rakasanganiswa sement mortar. Kuti uite zvizere hydration reaction yeiyo gel zvinhu, inonzwisisika huwandu hweselulosi ether inogona kuchengetedza mwando mudhaka kwenguva yakareba. Kazhinji kutaura, mwero wekuchengetedza mvura weslurry unowedzera nekuwedzera kwe cellulose ether yemukati. Kuchengetedza kwemvura kweselulosi ether HPMC kunogona kudzivirira iyo substrate kuti isatore mvura yakawandisa nekukurumidza, uye inotadzisa kubuda kwemvura, kuitira kuve nechokwadi chekuti slurry nharaunda inopa mvura yakakwana yesamende hydration. Mukuwedzera, iyo viscosity ye cellulose ether inewo simba guru pakuchengetedza mvura kwedhaka. Iyo yakakwirira viscosity, zviri nani kuchengetedza mvura. Kazhinji, cellulose ether HPMC ine viscosity ye400mpa.s inonyanya kushandiswa mune yega-leveling dhaka, iyo inogona kunatsiridza kuenzanisa kwekuita kwedhaka uye kuwedzera compactness yedhaka.
3. Kuisa nguva: Cellulose ether ine kumwe kudzoreredza padhaka. Nekuwedzera kwemukati we cellulose ether, nguva yekugadzika yedhaka inowedzera. Kudzoreredza mhedzisiro ye cellulose ether HPMC pane simende paste zvakanyanya zvinoenderana nehuwandu hwekutsiviwa kweboka realkyl, uye ine hukama hudiki nehuremu hwayo hwemamorekuru. Iyo idiki dhigirii yealkyl inotsiva, iyo yakakura iyo hydroxyl yemukati, uye zvakanyanya kuoneka kudzoreredza maitiro. Uye iyo yakakwirira yemukati we cellulose ether, kunowedzera kujeka kunonoka kweiyo yakaoma firimu layer pane yekutanga hydration ye simenti, saka kudzoreredza mhedzisiro inova pachena zvakare.
4. Flexural simba uye kumanikidza simba: Kazhinji, simba ndeimwe yeakakosha ekuongorora zviratidzo zvekurapa mhedzisiro yesimende-based simenti zvinhu pamusanganiswa. Iyo yekumanikidza simba uye flexural simba redhaka richadzikira nekuwedzera kwe cellulose ether HPMC yemukati.
5. Simba rekubatanidza: cellulose ether HPMC ine simba guru pakushanda kwekubatana kwedhaka. Cellulose ether inoumba firimu repolymer rine chisimbiso chekuvhara pakati pe simenti hydration particles mu liquid phase system, iyo inosimudzira mvura yakawanda mufirimu yepolymer kunze kwezvikamu zvesimende, iyo inobatsira kumvura yakakwana ye simenti, nokudaro inovandudza Kusimba kwechisungo chekunamatira mushure mekuoma. Panguva imwecheteyo, huwandu hwakakodzera hweselulosi ether hunowedzera purasitiki uye kuchinjika kwedhaka, kunoderedza kuomarara kwenzvimbo yekuchinja pakati pedhaka uye substrate interface, uye inoderedza kugona kutsvedza pakati penzvimbo. Kusvika kumwero wakati, iyo yekubatanidza mhedzisiro pakati pedhaka uye substrate inowedzerwa. Uye zvakare, nekuda kwekuvapo kwe cellulose ether mune simende paste, yakakosha interface transition zone uye interface layer inoumbwa pakati pemateki evhu uye hydration chigadzirwa. Iyi interface layer inoita kuti iyo interface yekushandura nzvimbo iwedzere kuchinjika uye kushoma kuomarara, saka, kuitira kuti dhaka rive nesimba rakasimba rechisungo.
Nguva yekutumira: Feb-27-2023