Harafi:Hydroxyethyl Cellulose (HEC CAS:9004-62-0) foda ne fari ko rawaya, mara ƙamshi, kuma mai sauƙin gudana. Yana narkewa a cikin ruwan sanyi da ruwan zafi, amma gabaɗaya ba ya narkewa a cikin yawancin abubuwan narkewa na halitta. Darajar pH tana canzawa kaɗan a cikin kewayon 2-12, amma ɗanɗano yana raguwa fiye da wannan kewayon.
darajar:Hydroxyethyl Cellulose (HEC CAS:9004-62-0) wani abu ne da ake amfani da shi wajen ƙara kauri ga tawada mai tushen cellulose ether. Yana da wani sinadari ne mai narkewa cikin ruwa wanda ke da kyakkyawan ƙarfin kauri ga ruwa, ana iya lalata shi ta hanyar iskar oxygen, acid, da enzymes, kuma ana iya haɗa shi da Cu2+ a ƙarƙashin yanayin alkaline. Yana da karko a yanayin zafi, baya kama da gel yayin dumama, baya zubar da ruwa a ƙarƙashin yanayin acidic, kuma yana da kyakkyawan siffa ta samar da fim. Maganin ruwansa za a iya yin shi zuwa fina-finai masu haske, waɗanda za a iya samar da su ta hanyar aikin alkaline cellulose da Chemicalbook ethylene oxide, kuma yana da halayen kauri, emulsification, mannewa, dakatarwa, ƙirƙirar fim, riƙe danshi, da kariyar colloid. Matsayin masu kauri a cikin tawada mai tushen ruwa shine don ƙara kauri. Ƙara masu kauri a cikin tawada yana ƙara kauri, wanda zai iya inganta daidaiton tawada ta zahiri da sinadarai; Saboda ƙaruwar danko, ana iya sarrafa rheology na tawada yayin bugawa; Ba abu ne mai sauƙi a yi amfani da launin da ke cikin tawada ba, wanda hakan ke ƙara daidaiton ajiyar tawada mai ruwa.
Hanyar Samarwa：Alkali cellulose wani abu ne na halitta wanda ke ɗauke da ƙungiyoyin hydroxyl guda uku a kowane zoben tushe na zare. Ƙungiyar hydroxyl mafi aiki tana amsawa don samar da hydroxyethyl cellulose. Jiƙa ɗanyen auduga ko ɓangaren litattafan da aka tace a cikin alkaline mai ruwa 30%, sannan a fitar da shi don matsewa bayan rabin sa'a. Danna har sai ruwan alkaline ya kai 1:2.8, sannan a niƙa shi. Ana saka cellulose na alkali da aka niƙa a cikin reactor, a rufe, a yi feshi, sannan a cika shi da nitrogen. Ana yin feshi akai-akai kuma ana cika shi da nitrogen don maye gurbin duk iskar da ke cikin reactor. Danna ruwan ethylene oxide da aka riga aka sanyaya, a zuba ruwan sanyi a cikin jaket ɗin reactor, sannan a sarrafa zafin amsawar zuwa kimanin 25 ℃ na tsawon awanni 2 don samun samfurin hydroxyethyl cellulose mai ɗanɗano. Ana wanke samfurin da barasa, a narkar da shi da acetic acid zuwa pH 4-6, sannan a haɗa shi da glyoxal don tsufa. Sannan a wanke da ruwa, a yi centrifuge, a bushe, a bushe, sannan a niƙa don samun hydroxyethyl cellulose.
Lokacin Saƙo: Maris-28-2023
