Carboxymethyl cellulose (CMC) polymer ne mai mahimmancin darajar masana'antu. Yana da anionic cellulose ether mai narkewa da ruwa wanda aka samo daga cellulose na halitta. Cellulose yana daya daga cikin mafi yawan nau'in polymers a cikin yanayi kuma shine babban bangaren ganuwar kwayoyin halitta. Cellulose kanta yana da ƙarancin narkewa a cikin ruwa, amma ta hanyar gyare-gyaren sinadarai, ana iya canza cellulose zuwa abubuwan da aka samo asali tare da ingantaccen ruwa mai kyau, kuma CMC yana ɗaya daga cikinsu.
Ana samun tsarin kwayoyin halitta na CMC ta hanyar etherifying da hydroxyl (-OH) ɓangare na cellulose kwayoyin tare da chloroacetic acid (ClCH2COOH) don samar da wani carboxymethyl substituent (-CH2COOH). Tsarin CMC yana riƙe da tsarin sarkar β-1,4-glucose na cellulose, amma wasu ƙungiyoyin hydroxyl a cikinta ana maye gurbinsu da ƙungiyoyin carboxymethyl. Saboda haka, CMC yana riƙe da halayen sarkar polymer na cellulose kuma yana da ayyuka na ƙungiyar carboxymethyl.
Chemical Properties na CMC
CMC shine polymer anionic. Tun da ƙungiyar carboxyl (-CH2COOH) a cikin tsarinta na iya yin ionize don samar da caji mara kyau a cikin maganin ruwa, CMC na iya samar da ingantaccen maganin colloidal bayan narkewa a cikin ruwa. Ruwan ruwa da kuma solubility na CMC suna shafar matakin maye gurbinsa (DS) da digiri na polymerization (DP). Matsayin maye gurbin yana nufin adadin ƙungiyoyin hydroxyl waɗanda aka maye gurbinsu da ƙungiyoyin carboxyl a cikin kowace rukunin glucose. Gabaɗaya, mafi girman matakin maye gurbin, mafi kyawun narkewar ruwa. Bugu da kari, da solubility da danko na CMC a daban-daban pH dabi'u su ma daban-daban. Gabaɗaya, yana nuna mafi kyawun solubility da kwanciyar hankali a ƙarƙashin tsaka tsaki ko yanayin alkaline, yayin da a ƙarƙashin yanayin acidic, solubility na CMC zai ragu kuma yana iya haɓakawa.
Kaddarorin jiki na CMC
Dankowar maganin CMC shine ɗayan mahimman kaddarorinsa na zahiri. Dankowar sa yana da alaƙa da abubuwa da yawa, gami da ƙaddamarwar bayani, matakin maye gurbin, digiri na polymerization, zafin jiki da ƙimar pH. Wannan danko halin CMC yana ba shi damar nuna thickening, gelling da stabilization effects a da yawa aikace-aikace. Danko na CMC kuma yana da halaye na raguwa mai ƙarfi, wato, danko zai ragu a ƙarƙashin ƙarfin ƙarfi mai ƙarfi, wanda ya sa ya fi dacewa a wasu aikace-aikacen da ke buƙatar babban ruwa.
Yankunan aikace-aikacen CMC
Saboda kaddarorinsa na zahiri da sinadarai na musamman, CMC ana amfani da shi sosai a fagage da yawa. Ga wasu manyan wuraren aikace-aikacen:
Masana'antar abinci: Ana amfani da CMC azaman mai kauri, stabilizer da emulsifier a cikin masana'antar abinci. Yana iya inganta rubutu da kwanciyar hankali na abinci, kamar aikace-aikacen gama gari a cikin ice cream, yogurt, jelly da miya.
Masana'antar harhada magunguna: Ana amfani da CMC a matsayin abubuwan haɓaka magunguna da manne don allunan a cikin filin harhada magunguna. Hakanan ana amfani dashi azaman mai damshi da mai samar da fim a cikin suturar rauni.
Abubuwan sinadarai na yau da kullun: A cikin samfuran yau da kullun kamar man goge baki, shamfu, wanka, da sauransu, ana amfani da CMC azaman mai kauri, wakili mai dakatarwa da daidaitawa don taimakawa samfurin ya kula da kyakkyawan bayyanar da aiki.
Hakowa mai: Ana amfani da CMC azaman mai haɓaka danko da kuma tacewa a cikin ruwan hako mai, wanda zai iya inganta kaddarorin rheological na hakowar ruwa da hana wuce gona da iri na hakowa.
Masana'antun masana'anta da masana'anta: A cikin masana'antar masana'anta, ana amfani da CMC don ɓangaren litattafan almara da abubuwan gamawa, yayin da a cikin masana'antar yin takarda, ana amfani da shi azaman mai ƙarfafawa da ma'auni don takarda don haɓaka ƙarfi da santsi na takarda.
Kariyar muhalli da aminci
CMC abu ne da ke da alaƙa da muhalli wanda za a iya lalata shi ta hanyar ƙwayoyin cuta a cikin yanayi, don haka ba zai haifar da gurɓatawar yanayi na dogon lokaci ba. Bugu da ƙari, CMC yana da ƙananan guba da aminci mai girma, kuma yana da kyakkyawan rikodin aminci a cikin abinci da aikace-aikacen magunguna. Duk da haka, saboda yawan samarwa da aikace-aikacensa, ya kamata a mai da hankali kan maganin sharar sinadarai da za a iya haifarwa yayin aikin samar da shi.
Carboxymethyl cellulose (CMC) wani nau'in polymer anionic mai narkewa ne mai aiki daban-daban. CMC da aka samu ta hanyar gyare-gyaren sinadarai yana riƙe da kyawawan kaddarorin cellulose na halitta yayin da yake da kyakkyawan narkewar ruwa da kaddarorin jiki da sinadarai na musamman. Tare da kauri, gelling, daidaitawa da sauran ayyuka, CMC an yi amfani dashi sosai a masana'antu da yawa kamar abinci, magani, sinadarai na yau da kullum, hako mai, yadi da kuma yin takarda. Kariyar muhallinta da amincinta kuma sun sanya ta zama abin da aka fi so a cikin samfura da yawa.
Lokacin aikawa: Agusta-23-2024