Udindo wa hydroxypropyl methyl cellulose mumatope onyowa

Udindo waMtengo wa HPMCmumtondo wonyowa

Chonyowa Kusakaniza matope: Tondo wosakanikirana ndi mtundu wa simenti, zophatikiza zabwino, zosakaniza ndi madzi, ndipo malingana ndi katundu wa zigawo zosiyanasiyana, mu gawo linalake, muyeso pa malo osakaniza, osakanikirana, amatengedwa kupita kumalo ogwiritsidwa ntchito ndi galimotoyo, mu chidebe chosungirako chodzipereka, ndikugwiritsidwa ntchito mu nthawi yeniyeni yosakaniza yonyowa.

Hydroxypropyl methyl cellulose imagwiritsidwa ntchito ngati chosungira madzi mumatope a simenti, kupopera matope a retarder. Mu gypsum monga binder kuti apititse patsogolo ntchito ndikuwonjezera nthawi yogwiritsira ntchito, hydroxypropyl methylcellulose HPMC kusungirako madzi kuti slurry itatha kuyanika isakhale yofulumira komanso yowonongeka, kuumitsa kuti ikhale ndi mphamvu. Kusunga madzi ndi chinthu chofunikira kwambiri cha hydroxypropyl methyl cellulose HPMC, komanso ndi nkhawa ya opanga matope ambiri. Zomwe zimakhudza momwe madzi amasungiramo matope onyowa akuphatikizapo kuchuluka kwa HPMC yowonjezeredwa, kukhuthala kwa HPMC, ubwino wa tinthu tating'onoting'ono komanso kutentha kwa chilengedwe.
Hydroxypropyl methyl cellulose HPMC mu chonyowa matope udindo waukulu mbali zitatu, mmodzi kwambiri madzi atagwira mphamvu, chachiwiri ndi chonyowa matope kugwirizana ndi thixotropy wa chikoka, lachitatu ndi mogwirizana ndi simenti. Kusungidwa kwa madzi a cellulose ether kumadalira kuchuluka kwa mayamwidwe amadzi pamunsi, kapangidwe ka matope, makulidwe a matope, kufunikira kwa madzi amatope, nthawi yoyika. Kuwoneka bwino kwa hydroxypropyl methyl cellulose kumapangitsa kuti madzi asungidwe bwino.
Zomwe zimakhudza kusungidwa kwamadzi kwa matope onyowa zimaphatikizapo kukhuthala kwa cellulose ether, kuwonjezera kuchuluka, kukula kwa tinthu ndi kutentha. Kuchuluka kwa kukhuthala kwa cellulose ether, kumapangitsa kuti madzi asungidwe bwino. Viscosity ndi gawo lofunikira pakuchita kwa HPMC. Kwa mankhwala omwewo, kugwiritsa ntchito njira zosiyanasiyana kuyeza kukhuthala kwa zotsatira kumasiyana mosiyanasiyana, ena ngakhale ndi magawo awiri. Chifukwa chake, kufananitsa mamasukidwe akayendedwe kuyenera kuchitika munjira yoyeserera, kuphatikiza kutentha, rotor, ndi zina.

Nthawi zambiri, kukhathamira kwamphamvu kumapangitsa kuti madzi asungidwe bwino. Komabe, kukwezeka kwa mamasukidwe apamwamba, kumapangitsa kuchuluka kwa maselo a HPMC, komanso kutsika kwa kusungunuka kwa HPMC, komwe kumakhudzanso mphamvu ndi ntchito yomanga ya matope. Kuchuluka kwa mamasukidwe akayendedwe, m'pamenenso amawonekera kwambiri kukhuthala kwa matope, koma sikukhudzana mwachindunji. Kukwezeka kwa viscosity kumapangitsanso matope omata kwambiri, ntchito yomanga bwino, viscous scraper performance komanso kumamatira kwambiri ku gawo lapansi. Komabe, kuwongolera mphamvu zamapangidwe a matope okhawo sikunathandize. Zomangamanga zonse ziwiri, magwiridwe antchito sizowonekeratu otsutsa - kupachika ntchito. 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 PMC yonyowa matope owonjezera, kusungirako bwino kwa madzi, kukweza kukhuthala, kumapangitsanso kusunga madzi. Fineness ndiwonso gawo lofunikira la hydroxypropyl methyl cellulose.
Ubwino wa hydroxypropyl methyl cellulose ulinso ndi chikoka pa kusunga madzi. Munthawi yanthawi zonse, kukhuthala komweko komanso kununkhira kosiyana kwa hydroxypropyl methyl cellulose, pamlingo womwewo wowonjezera, kucheperako kwa mphamvu yosungira madzi kumakhala bwinoko.
Mumatope onyowa, kuwonjezera pa cellulose etherMtengo wa HPMCndi otsika kwambiri, koma akhoza kwambiri kusintha ntchito yomanga yonyowa matope, ndi chowonjezera chachikulu chomwe chimakhudza kwambiri ntchito ya matope. Kuchita kwa matope onyowa kumakhudzidwa kwambiri ndi kusankha koyenera kwa hydroxypropyl methyl cellulose.