Hydroxypropyl methylcellulose (HPMC) wani ether ne wanda ba na ionic cellulose ba wanda aka yi daga cellulose polymer abu na halitta ta hanyar tsarin sinadarai. Hydroxypropylmethylcellulose (HPMC) wani wari ne, marar ɗanɗano, farin foda mara guba wanda za'a iya narkar da shi a cikin ruwan sanyi don samar da bayani mai haske. Yana da Properties na thickening, dauri, dispersing, emulsifying, film-forming, suspending, adsorbing, gelling, surface aiki, rike danshi da kuma kare colloid. A cikin turmi, muhimmin aiki na hydroxypropyl methylcellulose shine riƙewar ruwa, wanda shine ikon turmi don riƙe ruwa.
1. Muhimmancin riƙe ruwa ga turmi
Turmi tare da rashin isasshen ruwa yana da sauƙi don zubar da jini da rabuwa yayin sufuri da ajiya, wato, ruwa yana shawagi a saman, yashi da siminti a ƙasa, kuma dole ne a sake motsawa kafin amfani. Turmi tare da matalauta ruwa riƙewa, a kan aiwatar da smearing, idan dai shirye-mixed turmi ne a cikin lamba tare da toshe ko tushe, da shirye-mixed turmi za a sha ruwa, kuma a lokaci guda, m surface na waje. turmi zai fitar da ruwa zuwa sararin samaniya, wanda zai haifar da asarar ruwan turmi. Rashin isassun ruwa zai shafi ci gaba da hydration na siminti kuma yana shafar ci gaban ƙarfin turmi na yau da kullun, yana haifar da ƙarancin ƙarfi, musamman ƙarfin haɗin gwiwa tsakanin turmi mai tauri da tushe mai tushe, yana haifar da fashewa da fadowa daga turmi.
2. Hanyar al'ada na inganta yawan ruwa na turmi
Maganin gargajiya shine shayar da tushe, amma ba zai yuwu a tabbatar da cewa tushen yana da ruwa daidai ba. Manufar hydration manufa na ciminti turmi a kan tushe shi ne: siminti hydration samfurin shiga cikin tushe tare da aiwatar da tushe sha ruwa, samar da wani tasiri "maɓalli mahada" tare da tushe, don cimma da ake bukata bond ƙarfi. Shayarwa kai tsaye a saman tushe zai haifar da mummunar tarwatsewa a cikin shayar da ruwa na tushe saboda bambance-bambancen yanayin zafi, lokacin shayarwa, da daidaiton ruwa. Tushen yana da ƙarancin sha ruwa kuma zai ci gaba da sha ruwan a cikin turmi. Kafin ci gaba da ciminti hydration, ruwan yana sha, wanda ke shafar shigar da simintin hydration da samfuran hydration a cikin matrix; tushe yana da babban shayar ruwa, kuma ruwan da ke cikin turmi yana gudana zuwa tushe. Matsakaicin gudun hijira yana jinkirin, har ma an samar da ruwa mai wadataccen ruwa tsakanin turmi da matrix, wanda kuma yana shafar ƙarfin haɗin gwiwa. Sabili da haka, yin amfani da hanyar shayarwa na yau da kullum ba kawai zai kasa magance matsalar yawan shayar da ruwa na bango ba, amma zai shafi ƙarfin haɗin kai tsakanin turmi da tushe, wanda zai haifar da raguwa da raguwa.
3. Ingantaccen riƙe ruwa
(1) Kyakkyawan aikin riƙe ruwa yana sa turmi ya buɗe na dogon lokaci, kuma yana da fa'idodin gine-gine mai girma, tsawon rayuwar sabis a cikin ganga, da cakuɗewar tsari da amfani.
(2) Kyakkyawan aikin riƙe ruwa yana sa siminti a cikin turmi ya cika ruwa sosai, yadda ya kamata yana haɓaka aikin haɗin gwiwa na turmi.
(3) Turmi yana da kyakkyawan aikin riƙewar ruwa, wanda ke sa turmi ya zama ƙasa da ƙasa ga rarrabuwa da zub da jini, wanda ke haɓaka iya aiki da haɓakar turmi.
Lokacin aikawa: Maris 20-2023