Sodium carboxymethyl cellulose (CMC) wani anionic, madaidaiciya sarkar, ruwa mai narkewa cellulose ether, wanda aka samu daga halitta cellulose da chloroacetic acid ta hanyar sinadaran gyara.Its mai ruwa bayani yana da ayyuka na thickening, film forming, bonding, ruwa riƙewa, colloidal kariya, emulsification da dakatarwa, kuma za a iya amfani da matsayin flocculant, chelating wakili, emulsifier, thickener, ruwa retaining wakili, sizing wakili, fim kafa abu, da dai sauransu ., wanda aka fi amfani dashi a cikin abinci, magunguna, kayan lantarki, magungunan kashe qwari, fata, robobi, bugu, yumbu, masana'antar sinadarai ta yau da kullun da sauran fannoni.
Sodium carboxymethyl cellulose ne gaba ɗaya foda m, wani lokacin granular ko fibrous, fari ko haske rawaya a launi, babu musamman wari, shi ne macromolecular sinadaran abu, yana da karfi wettability, iya narke a cikin ruwa, a cikin ruwa don samar da wani danko bayani tare da high. bayyana gaskiya.Insoluble a general Organic mafita, irin su ethanol, ether, chloroform da benzene, amma za a iya narkar da a cikin ruwa, kai tsaye narkar da a cikin ruwa ne in mun gwada da jinkirin, amma solubility ne har yanzu babba, da ruwaye bayani yana da wani danko.M a cikin yanayin gabaɗaya ya fi kwanciyar hankali, saboda yana da takamaiman shayar ruwa da zafi, a cikin bushewar yanayi, ana iya kiyaye shi na dogon lokaci.
① Tsarin samarwa
1. Hanyar ruwa mai matsakaici
Tsarin ruwa-kwal tsari ne mai gwadawa da wuri a cikin shirye-shiryen masana'antu na sodium carboxymethyl cellulose.A cikin wannan tsari, da alkali cellulose da etherifying wakili amsa a cikin wani ruwa bayani dauke da free oxygen oxide ions, da ruwa da ake amfani da matsayin dauki matsakaici a dauki tsari, ba tare da Organic kaushi.
2. Hanyar narkewa
Hanyar narkewa ita ce hanyar samar da ƙarfi, wanda shine tsarin samarwa wanda aka haɓaka akan hanyar matsakaicin ruwa don maye gurbin ruwa tare da sauran ƙarfi a matsayin matsakaicin amsawa.Tsarin alkalization da etherification na alkali cellulose da monochloroacetic acid a cikin wani kwayoyin kaushi.Dangane da adadin matsakaicin amsawa, ana iya raba shi zuwa hanyar kneading da hanyar slurry na iyo.Adadin abubuwan da ake amfani da su a cikin hanyar pulping ya fi girma fiye da na hanyar ƙwanƙwasa, kuma adadin abubuwan da ake amfani da su a cikin hanyar kneading shine rabo na girman nauyin adadin cellulose, yayin da adadin kuzarin da aka yi amfani da shi. a cikin hanyar pulping shine rabon girman girman adadin cellulose.Lokacin da sodium carboxymethyl cellulose aka shirya ta yin iyo slurry hanya, da dauki m ne a cikin wani slurry ko dakatar jihar a cikin tsarin, don haka iyo slurry hanya kuma ake kira da dakatar hanya.