Cellulose Ether– Thickening uye Thixotropy
Cellulose etherinoisa dhaka rakanyorova rine yakanakisa viscosity, iyo inogona kuwedzera zvakanyanya kunamatira pakati pevhu rakanyorova uye base layer, inovandudza anti kuyerera kwedhaka, uye inoshandiswa zvakanyanya mukupura dhaka, ceramic tile bonding dhaka, uye yekunze madziro ekudzivirira system.Iko kukora mhedzisiro ye cellulose ether inogona zvakare kuwedzera anti dispersion kugona uye kufanana kwezvinhu zvitsva, uye kudzivirira stratification yezvinhu, kupatsanurwa, uye seepage.Inogona kushandiswa kune fiber yakasimbiswa kongiri, pasi pemvura kongiri, uye yega compacting kongiri.
The thickening effect yecellulose etherpane sement-based materials inobva kune viscosity ye cellulose ether solution.Pasi pemamiriro akafanana, iyo yakakwirira viscosity yecellulose ether, zviri nani iyo viscosity yezvinhu zvakagadziridzwa sement-based.Zvisinei, kana viscosity yakanyanyisa, inokanganisa kuyerera uye kushanda kwezvinhu (zvakadai sekupura mapanga).Self leveling mortar, self compacting kongiri, nezvimwewo zvinoda mvura yakawanda, uye viscosity ye cellulose ether yakaderera zvikuru.Uye zvakare, iyo thickening mhedzisiro ye cellulose ether inowedzerawo kudiwa kwemvura ye simenti substrate uye kuwedzera kugadzirwa kwedhaka.
Iyo aqueous solution ye high viscosity cellulose ether ine yakakwira thixotropy, inovawo hunhu hwe cellulose ether.Iyo aqueous solution yemethyl cellulose kazhinji ine pseudoplastic uye isiri thixotropic kuyerera zvivakwa zvakaderera pane yayo gel tembiricha, asi inoratidza Newtonian kuyerera pakaderera shear rate.Pasinei nemhando uye dhigirii yekutsiviwa kwezvinotsiva, pseudoplasticity inowedzera nekuwedzera kwehuremu hwemamorekuru kana kusangana kwe cellulose ether.Naizvozvo, chero bedzi iyo yekumisikidza uye tembiricha zvichiramba zvikamira, cellulose ethers ine imwechete viscosity giredhi (zvisinei neMC,HPMC, HEMC) nguva dzose inoratidza zvakafanana rheological properties.Kana kutonhora kuchikwira, maitiro egel mafomu uye high thixotropic kuyerera kunoitika.
Cellulose ethervagadziri vanokuudza kuti cellulose ether ine yakakwira concentration uye yakaderera viscosity ine thixotropy kunyangwe pasi petembiricha yegel.Ichi chivakwa chinobatsira kwazvo pakuvakwa kwedhaka kuti igadzirise kuenzana kwayo uye kusagika.Zvinofanira kucherechedzwa kuti yakakwirira viscosity yecellulose ether, zviri nani kuchengetedza kwayo mvura.Nekudaro, iyo yakakwira viscosity, inokwira iyo yakaenzana molecular huremu hwe cellulose ether, uye kuderera kunoenderana mukunyungudika kwayo.Iine kukanganisa kwakashata pakugadzirisa uye kugadziriswa kwedhaka.
Cellulose Ether- Kunonoka
Cellulose etherinogona kurebesa nguva yekumisikidza simende slurry kana dhaka, kunonoka hydration kinetics ye simenti, uye kuvandudza hupenyu hwesevhisi yezvinhu zvitsva, nekudaro ichivandudza kuenderana kwekudonha pakati pedhaka nekongiri.Dhigirii yekurasikirwa nekufamba kwenguva, asi inogonawo kunonoka kufambira mberi kwekuvaka.
Nguva yekutumira: Aug-25-2023