Sodium carboxymethyl cellulose (CMC)wani carboxymethylated wanda aka samu daga cellulose, kuma aka sani da cellulose danko, kuma shine mafi mahimmancin ionic cellulose danko. CMC galibi wani fili ne na polymer anionic wanda aka samu ta hanyar amsa cellulose na halitta tare da caustic alkali da monochloroacetic acid. Nauyin kwayoyin halitta daga dubun-dubatar miliyoyin zuwa miliyoyin da yawa.
【Properties】 White foda, wari, mai narkewa a cikin ruwa don samar da wani babban danko bayani, insoluble a ethanol da sauran kaushi.
【Aikace-aikace】 Yana yana da ayyuka na dakatarwa da emulsification, mai kyau cohesion da gishiri juriya, da aka sani da "masana'antu monosodium glutamate", wanda aka yadu amfani.
Shiri na CMC
Bisa ga daban-daban etherification matsakaici, da masana'antu samar da CMC za a iya raba kashi biyu Categories: ruwa-tushen hanya da sauran ƙarfi tushen hanya. Hanyar amfani da ruwa a matsayin hanyar amsawa ana kiranta hanyar ruwa, wanda ake amfani da shi don samar da matsakaici na alkaline da ƙananan CMC; Hanyar yin amfani da ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar cuta ita ce hanyar da ake amfani da ita a matsayin hanyar amsawa da ake kira hanyar warwarewa , wanda ya dace da samar da matsakaici da babban darajar CMC. Duk waɗannan halayen ana yin su ne a cikin ƙwanƙwasa, wanda ke cikin tsarin dunƙulewa kuma shine babban hanyar samar da CMC a halin yanzu.
1
hanyar ruwa
Hanyar da aka yi amfani da ruwa ita ce tsarin samar da masana'antu a baya, wanda shine amsa alkali cellulose tare da wakili mai lalatawa a cikin yanayin alkali kyauta da ruwa. A lokacin alkalization da etherification tsari, babu wani kwayoyin halitta a cikin tsarin. Abubuwan da ake buƙata na kayan aiki na hanyar ruwa mai sauƙi suna da sauƙi, tare da ƙananan zuba jari da ƙananan farashi. Rashin hasara shi ne cewa akwai rashin isasshen adadin ruwa mai yawa, kuma zafin da aka haifar da shi yana ƙara yawan zafin jiki, wanda ke haɓaka saurin halayen gefe, yana haifar da ƙananan etherification yadda ya dace da rashin ingancin samfurin. Ana amfani da wannan hanyar don shirya samfuran CMC na tsakiya da na ƙasa, kamar kayan wanke-wanke, ma'auni mai ƙima, da sauransu.
2
hanyar narkewa
Har ila yau ana san hanyar warwarewa azaman hanyar kaushi. Babban fasalinsa shine cewa ana aiwatar da halayen alkalization da etherification a ƙarƙashin yanayin cewa ana amfani da kaushi mai ƙarfi azaman matsakaiciyar amsawa (diluent). Dangane da adadin diluent dauki, an raba shi zuwa hanyar kneading da hanyar slurry. Hanyar narkewa iri ɗaya ce da tsarin amsawa ta hanyar tushen ruwa, kuma ta ƙunshi matakai biyu na alkalization da etherification, amma matsakaicin amsawar waɗannan matakan biyu ya bambanta. Hanyar mai narkewa tana kawar da hanyoyin da ke cikin hanyar tushen ruwa, irin su jiƙa, squeezing, pulverizing, tsufa, da dai sauransu, kuma alkalization da etherification ana gudanar da su a cikin kullun. Rashin hasara shi ne cewa yanayin zafin jiki yana da ƙarancin ƙarancin talauci, buƙatun sararin samaniya da farashi suna da yawa. Tabbas, don samar da shimfidu na kayan aiki daban-daban, wajibi ne don sarrafa tsarin zafin jiki sosai, lokacin ciyarwa, da sauransu, don samfuran samfuran da ke da inganci da inganci za a iya shirya su. Ana nuna ginshiƙi tsarin tafiyar da shi a hoto na 2.
3
Matsayin Shirye-shiryen SodiumCarboxymethyl cellulosedaga Kayayyakin Noma
Abubuwan amfanin gona na amfanin gona suna da halaye iri-iri da sauƙin samuwa, kuma ana iya amfani da su azaman albarkatun ƙasa don shirye-shiryen CMC. A halin yanzu, CMC ta samar da albarkatun kasa ne yafi mai ladabi cellulose, ciki har da auduga fiber, rogo fiber, bambaro fiber, bamboo fiber, alkama bambaro fiber, da dai sauransu Duk da haka, tare da ci gaba da gabatarwa na CMC aikace-aikace a kowane fanni na rayuwa, a karkashin data kasance albarkatun kasa sarrafa albarkatun, yadda za a yi amfani da rahusa da fadi kafofin na albarkatun kasa domin CMC shiri zai shakka zama mayar da hankali.
Outlook
Sodium carboxymethyl cellulose za a iya amfani da a matsayin emulsifier, flocculant, thickener, chelating wakili, ruwa-retaining wakili, m, sizing wakili, film-kafa abu, da dai sauransu An yadu amfani da lantarki, fata, robobi, bugu, tukwane, yau da kullum amfani Chemical da sauran filayen, da kuma saboda da kyau kwarai yi da fadi da kewayon tasowa sabon filin, shi ne har yanzu m filin. A zamanin yau, a ƙarƙashin yaɗuwar ra'ayi na samar da sinadarai koren, binciken ƙasashen waje akanCMCFasahar shirye-shiryen tana mai da hankali kan neman arha da sauƙin samun albarkatun halitta da sabbin hanyoyin tsarkakewa na CMC. A matsayina na kasa mai dimbin albarkatun noma, kasata tana cikin gyare-gyaren cellulose Ta fuskar fasaha, tana da fa'ida daga albarkatun kasa, amma kuma akwai matsaloli irin su rashin daidaito a cikin tsarin shirye-shiryen da aka samu ta hanyar hanyoyin daban-daban na fiber cellulose na biomass da manyan bambance-bambance a cikin sassan. Har yanzu akwai nakasu a cikin isar da amfani da kayayyakin biomass, don haka akwai bukatar a gudanar da bincike mai zurfi a wadannan fannoni.
Lokacin aikawa: Afrilu-25-2024