Bambanci Tsakanin CMC da MHEC

Carboxymethylcellulose (CMC) da Methyl hydroxyethyl cellulose (MHEC) nau'ikan nau'ikan nau'ikan cellulose ne na yau da kullun waɗanda ake amfani da su sosai a masana'antu daban-daban. Suna raba wasu kamanceceniya a tsarin sinadarai da kaddarorinsu na zahiri, amma kuma suna da wasu bambance-bambance masu mahimmanci waɗanda ke sa su dace da aikace-aikace daban-daban. A cikin wannan maƙala, za mu bincika bambance-bambancen da ke tsakanin CMC da MHEC.

Tsarin Sinadarai
Dukansu CMC da MHEC sune abubuwan da aka samo asali na cellulose waɗanda ke da polymers mai narkewa da ruwa. An samo CMC daga cellulose ta hanyar mayar da shi tare da chloroacetic acid don gabatar da ƙungiyoyin carboxymethyl, yayin da MHEC ke samuwa daga cellulose ta hanyar amsawa da ethylene oxide da methyl chloride don gabatar da methyl da hydroxyethyl kungiyoyin.

Solubility
Babban bambance-bambancen da ke tsakanin CMC da MHEC shine narkewar su a cikin ruwa. CMC yana da narkewa sosai a cikin ruwa kuma yana iya samar da bayani mai haske, mai danko ko da a ƙananan ƙima. Sabanin haka, MHEC ba shi da narkewa a cikin ruwa fiye da CMC kuma yawanci yana buƙatar amfani da sauran ƙarfi, kamar ethanol ko barasa isopropyl, don narke gaba ɗaya.

Dankowar jiki
Dukansu CMC da MHEC na iya kauri mafita mai ruwa da kuma ƙara danko. Duk da haka, CMC yana da danko mafi girma fiye da MHEC, kuma yana iya samar da karin gel-kamar daidaito lokacin da aka narkar da cikin ruwa. Wannan ya sa CMC ya dace don amfani a aikace-aikace inda ake buƙatar kauri ko gelling, kamar a cikin masana'antar abinci don yin miya da sutura. MHEC, a gefe guda, yana da ɗanɗano kaɗan fiye da CMC kuma yawanci ana amfani dashi azaman mai kauri ko rheology modifier a aikace-aikacen da ake buƙatar ƙaramin danko.

pH Stability
CMC gabaɗaya ya fi tsayayye akan mafi girman kewayon ƙimar pH fiye da MHEC. CMC yana da kwanciyar hankali a cikin yanayin acidic da alkaline, wanda ya sa ya dace don amfani a cikin masana'antar abinci, inda ƙimar pH na iya bambanta sosai. Sabanin haka, MHEC ya fi kwanciyar hankali a cikin ɗan acidic zuwa mahallin pH mai tsaka tsaki kuma yana iya rushewa a mafi girman ƙimar pH.

Tsayin Zazzabi
Dukansu CMC da MHEC sun tsaya tsayin daka akan yanayin zafi da yawa, amma akwai bambance-bambance a cikin kwanciyar hankali na thermal. CMC yana da kwanciyar hankali fiye da MHEC kuma yana iya kula da kaddarorinsa a yanayin zafi mafi girma. Wannan ya sa CMC ya dace don amfani a aikace-aikace inda yanayin zafi ke da hannu, kamar wajen samar da kayan gasa. MHEC, a gefe guda, yana da ƙarancin kwanciyar hankali fiye da CMC kuma yana iya rushewa a yanayin zafi mafi girma.

Aikace-aikace
Dukansu CMC da MHEC ana amfani da su a cikin aikace-aikace iri-iri a cikin masana'antu daban-daban. Ana yawan amfani da CMC azaman mai kauri, stabilizer, da emulsifier a cikin masana'antar abinci don samfura kamar ice cream, biredi, da sutura. Hakanan ana amfani dashi a cikin masana'antar harhada magunguna azaman ɗaure, tarwatsawa, da wakili mai dakatarwa. MHEC yawanci ana amfani dashi azaman mai kauri, ɗaure, da rheology gyare-gyare a cikin masana'antar gini don samfura kamar fenti, sutura, da mannewa. Hakanan ana amfani da ita a cikin masana'antar harhada magunguna azaman ɗaure, tarwatsawa, da dorewa-saki wakili.

A ƙarshe, CMC da MHEC su ne nau'ikan cellulose guda biyu waɗanda ke raba wasu kamanceceniya a cikin tsarin sinadarai da kaddarorinsu na zahiri amma suna da bambance-bambance daban-daban a cikin solubility, danko, kwanciyar hankali pH, kwanciyar hankali zafin jiki, da aikace-aikace.