Chonyowa matope osakanikirana: matope osakaniza ndi mtundu wa simenti, zosakaniza zabwino, zosakaniza ndi madzi, ndipo malinga ndi katundu wa zigawo zosiyanasiyana, malinga ndi chiwerengero china, pambuyo poyesedwa pa malo osakaniza, osakaniza, amapita kumalo kumene galimoto ntchito, ndipo analowa mu wapadera Kusunga chidebe ndi ntchito yomalizidwa yonyowa osakaniza kwa nthawi yotchulidwa.
Hydroxypropyl methylcellulose imagwiritsidwa ntchito ngati chosungira madzi pamatope a simenti ndi retarder popopera matope.Pankhani ya gypsum ngati chomangira kuti chiwongolere ntchito ndikutalikitsa nthawi yogwira ntchito, kusungidwa kwa madzi kwa HPMC kumalepheretsa slurry kusweka mwachangu mukatha kuyanika, ndikuwonjezera mphamvu pambuyo poumitsa.Kusunga madzi ndi chinthu chofunikira kwambiri cha hydroxypropyl methylcellulose HPMC, komanso ndi nkhawa ya opanga matope ambiri apanyumba.Zomwe zimakhudza momwe madzi amasungiramo matope osakanikirana amaphatikizapo kuchuluka kwa HPMC yowonjezeredwa, kukhuthala kwa HPMC, ubwino wa tinthu tating'onoting'ono komanso kutentha kwa malo ogwiritsira ntchito.
Pali ntchito zitatu zazikulu za hydroxypropyl methylcellulose HPMC mu chonyowa-kusakaniza matope, imodzi ndi yabwino kwambiri yogwira madzi, ina ndi chikoka pa kusasinthasintha ndi thixotropy wa chonyowa-kusakaniza matope, ndipo chachitatu ndi mogwirizana ndi simenti .Kusungidwa kwa madzi a cellulose ether kumadalira kuchuluka kwa mayamwidwe amadzi a m'munsi, kapangidwe ka matope, makulidwe a matope osanjikiza, kuchuluka kwa madzi kwa matope, ndi nthawi yoyika.Kuwoneka bwino kwa hydroxypropyl methylcellulose kumapangitsa kuti madzi asungidwe bwino.
Zinthu zomwe zimakhudza kusungidwa kwamadzi kwa matope osakanikirana ndi ma cellulose ether viscosity, kuchuluka kwake, kukula kwa tinthu ndi kutentha.Kuchuluka kwa kukhuthala kwa cellulose ether, kumapangitsa kuti madzi asungidwe bwino.Viscosity ndi gawo lofunikira la magwiridwe antchito a HPMC.Kwa mankhwala omwewo, zotsatira za kugwiritsa ntchito njira zosiyanasiyana zoyezera kukhuthala zimasiyana kwambiri, ndipo ena amakhala ndi kusiyana kawiri.Choncho, kuyerekezera mamasukidwe akayendedwe ayenera kuchitidwa mu njira yoyesera yofanana, kuphatikizapo kutentha, spindle, etc.
Nthawi zambiri, kukhathamira kwamphamvu kumapangitsa kuti madzi asungidwe bwino.Komabe, kukhuthala kwamphamvu, kumapangitsa kuti HPMC ikhale yolemera kwambiri komanso kutsika kwa kusungunuka kwa HPMC, komwe kumakhudza kwambiri mphamvu ndi ntchito yomanga matope.Kuchuluka kwa mamasukidwe akayendedwe, kumapangitsa kuti matopewo achuluke kwambiri, koma sizigwirizana mwachindunji.Kukwezeka kwa viscosity, matope amadzimadzi amawonekera kwambiri, ntchito yomanga bwino, ntchito ya viscous scraper ndipamwamba kumamatira ku gawo lapansi.Komabe, kuwonjezereka kwamphamvu kwapangidwe kwa matope okhawo sikuthandiza.Zomanga ziwirizi zilibe ntchito zodziwikiratu zotsutsana ndi sag.Mosiyana ndi izi, ma viscosity ena apakati komanso otsika koma osinthidwa hydroxypropyl methylcellulose ali ndi ntchito yabwino kwambiri pakuwongolera mphamvu zamapangidwe amatope onyowa.
Kuchuluka kwa cellulose ether kuwonjezeredwa ku PMC yonyowa matope, kusungirako bwino kwa madzi, komanso kukwezeka kwa viscosity, kumapangitsanso kusunga madzi.Fineness ndiyenso chizindikiro chofunikira cha hydroxypropyl methylcellulose.
Ubwino wa hydroxypropyl methylcellulose ulinso ndi chikoka pa kusunga madzi.Nthawi zambiri, kwa hydroxypropyl methylcellulose yokhala ndi mamasukidwe ofanana ndi kuwongolera kosiyana, kucheperako kumachepetsa, kumachepetsa kuchepa kwa madzi pansi pa kuchuluka komweko.chabwino.
Mu matope osakaniza onyowa, kuchuluka kwa cellulose ether HPMC kumakhala kochepa kwambiri, koma kumatha kusintha kwambiri ntchito yomanga matope onyowa, ndipo ndicho chowonjezera chachikulu chomwe chimakhudza makamaka ntchito yamatope.Kusankhidwa koyenera kwa hydroxypropyl methylcellulose, ntchito yamatope yonyowa imakhudzidwa kwambiri.
Nthawi yotumiza: Apr-25-2023