Hydroxypropyl methylcellulose, wanda ake kira: HPMC ko MHPC.Siffar fari ce ko fari-fari;Babban amfani shine a matsayin mai rarrabawa a cikin samar da polyvinyl chloride, kuma shine babban mahimmin taimako don shirye-shiryen PVC ta hanyar dakatar da polymerization.A cikin aikin gine-gine na masana'antar gine-gine, an fi amfani da shi wajen gina injiniyoyi kamar ginin bango, plastering, caulking, da dai sauransu;musamman wajen gine-gine na ado, ana amfani da shi don liƙa tayal yumbura, marmara, da kayan ado na filastik.Yana da ƙarfin haɗin gwiwa kuma yana iya rage adadin siminti..Ana amfani da shi azaman mai kauri a cikin masana'antar fenti, wanda zai iya sa Layer haske da laushi, hana cire foda, haɓaka aikin daidaitawa, da sauransu.
A cikin turmi siminti da slurry na tushen gypsum, hydroxypropyl methylcellulose galibi yana taka rawar riƙewar ruwa da kauri, wanda zai iya inganta ƙarfin haɗin kai da juriya na slurry yadda ya kamata.
Abubuwa kamar zafin iska, zafin jiki da saurin matsa lamba na iska za su yi tasiri ga yawan canjin ruwa a cikin turmi siminti da samfuran tushen gypsum.Saboda haka, a cikin yanayi daban-daban, akwai wasu bambance-bambance a cikin tasirin ruwa na samfurori tare da adadin adadin hydroxypropyl methylcellulose da aka kara.
A cikin ƙayyadaddun ginin, ana iya daidaita tasirin riƙe ruwa na slurry ta ƙara ko rage adadin adadin HPMC da aka ƙara.Riƙewar ruwa na methyl cellulose ether a ƙarƙashin yanayin zafi mai girma alama ce mai mahimmanci don bambanta ingancin methyl cellulose ether.
Kyakkyawan samfuran jerin samfuran hydroxypropyl methylcellulose na iya magance matsalar riƙewar ruwa yadda ya kamata.A cikin yanayin zafi mai zafi, musamman a wurare masu zafi da bushewa da kuma gine-gine na bakin ciki a gefen rana, ana buƙatar HPMC mai inganci don inganta riƙe ruwa na slurry.
HPMC mai inganci yana da daidaitattun daidaito.Ƙungiyoyin methoxy da hydroxypropoxy suna rarraba daidai gwargwado tare da sarkar kwayar halitta ta cellulose, wanda zai iya inganta ƙarfin kwayoyin oxygen akan hydroxyl da ether bond don haɗuwa da ruwa don samar da haɗin gwiwar hydrogen., ta yadda ruwan 'yanci ya zama ruwan daure, ta yadda za a iya sarrafa fitar da ruwa yadda ya kamata sakamakon yanayin zafi mai yawa, da kuma cimma ruwa mai yawa.
Ana buƙatar ruwa don hydration don saita kayan siminti kamar siminti da gypsum.Madaidaicin adadin HPMC na iya kiyaye danshi a cikin turmi na dogon lokaci don tsarin saiti da taurin zai iya ci gaba.
Adadin HPMC da ake buƙata don samun isasshen ruwa ya dogara da:
1. The absorbency na tushe Layer
2. Haɗin turmi
3. Turmi Layer kauri
4. Bukatar ruwa na turmi
5. Lokacin saitin kayan gelling
High quality-hydroxypropyl methylcellulose za a iya uniformly da kuma yadda ya kamata tarwatsa a cikin ciminti turmi da gypsum na tushen kayayyakin, da kuma kunsa duk m barbashi, da kuma samar da wani wetting fim, da danshi a cikin tushe ne sannu a hankali saki na dogon lokaci , da kuma hydration dauki tare da inorganic gelling abu don tabbatar da bonding ƙarfi da matsawa ƙarfi na abu.
Sabili da haka, a cikin ginin zafi mai zafi, don cimma tasirin kiyaye ruwa, dole ne a ƙara samfurori masu inganci na HPMC a cikin adadi mai yawa bisa ga ma'auni, in ba haka ba, za a sami rashin isasshen ruwa, rage ƙarfi, fashewa, hollowing. da zubar da ruwa mai yawa sakamakon bushewa.matsaloli, amma kuma yana ƙara wahalar gini na ma'aikata.Yayin da zafin jiki ya ragu, adadin ruwan HPMC da aka kara za a iya ragewa a hankali, kuma ana iya samun irin wannan tasirin ruwa.
Lokacin aikawa: Janairu-16-2023