Gina musamman hydroxypropyl methyl cellulose don guje wa shigar da danshi zuwa bango, zai zama daidai adadin danshi zai iya kasancewa a cikin simintin turmi yana samar da kyakkyawan aiki a cikin ruwa kuma rawar da hydroxypropyl methyl cellulose ke takawa a cikin turmi na iya zama daidai da danko, mafi girman danko na riƙe ruwa na hydroxypropyl methyl cellulose zai fi kyau.
Da zarar danshi na hydroxypropyl methyl cellulose ya yi yawa, riƙewar ruwa na hydroxypropyl methyl cellulose zai ragu, kuma zai kai tsaye ya haifar da ingancin ginin hydroxypropyl methyl cellulose. Mun kuma saba da abubuwan da za su fi sauƙin yin kurakurai, ya kamata mu ci gaba da sabo, za mu sami sakamako mara tsammani.
Danko da aka gani a fili muhimmin ma'auni ne na hydroxypropyl methyl cellulose. Hanyoyin aunawa da aka saba amfani da su sune auna danko na juyawa, auna danko na capillary da kuma auna danko na kaka.
A da, ana tantance hydroxypropyl methyl cellulose ta hanyar auna danko na capillary, ta amfani da na'urar auna Uhnscher. Maganin aunawa yawanci ruwan sha ne na 2, kuma dabarar ita ce: V=Kdt. V shine danko a cikin daƙiƙa, K shine madaidaitan na viscometer, D shine yawan da ake samu a yanayin zafi mai ɗorewa, kuma T shine lokacin da ake ɗauka don tafiya daga sama zuwa ƙasan viscometer cikin daƙiƙa. Wannan hanyar aiki ta fi rikitarwa, idan akwai abu mara narkewa, yana da sauƙin haifar da kurakurai, yana da wuya a gano ingancin hydroxypropyl methylcellulose.
Matsalar raba manne a cikin ginin babbar matsala ce da abokan ciniki ke fuskanta. Da farko dai, ya kamata a yi la'akari da matsalar kayan aiki don gina raba manne. Babban dalilin gina raba manne shine rashin jituwa tsakanin polyvinyl alcohol (PVA) da hydroxypropyl methylcellulose (HPMC). Dalili na biyu shine lokacin haɗawa bai isa ba; Akwai kuma aikin kauri manne a cikin ginin bai yi kyau ba.
Wajen gina manne, dole ne a yi amfani da instant hydroxypropyl methylcellulose (HPMC) domin HPMC yana warwatse ne kawai a cikin ruwa kuma ba ya narkewa da gaske. Kimanin minti 2, danko na ruwan yana ƙaruwa a hankali, yana samar da colloid mai haske.
Ana iya watsa samfuran da ke narkewa da zafi cikin ruwan zafi da sauri, su ɓace a cikin ruwan zafi, lokacin da zafin ya faɗi zuwa wani zafin jiki, ɗanko yana bayyana a hankali, har sai an sami colloid mai haske. Ana ba da shawarar ƙara adadin da aka ƙara a cikin manne na ginin don 2-4kg.
Hydroxypropyl methyl cellulose (HPMC) a cikin manne na ginin, daidaiton sinadarai, da tasirin riƙe ruwa yana da kyau, kuma canjin PH ba ya shafar sa, danko daga 100 000 S – 200 000 S za a iya amfani da shi. Amma a cikin samarwa ba haka ba ne, danko ya fi kyau, danko da ƙarfin haɗin sun fi dacewa, mafi girman danko, ƙarfin ya fi ƙanƙanta, gabaɗaya danko 100,000S ya dace.
Lokacin Saƙo: Satumba-16-2022