Bambanci Tsakanin CMC da HEMC

Carboxymethylcellulose (CMC) da Hydroxyethyl methylcellulose (HEMC) nau'ikan nau'ikan cellulose ne iri biyu waɗanda aka saba amfani da su a masana'antu iri-iri, gami da masana'antu na abinci da magunguna. Dukansu CMC da HEMC sune polymers masu narkewa da ruwa waɗanda aka samo daga cellulose, amma suna da kaddarorin daban-daban kuma ana amfani dasu don aikace-aikace daban-daban. A cikin wannan maƙala, za mu bincika bambance-bambancen da ke tsakanin CMC da HEMC.

Tsarin Sinadarai
Tsarin sinadarai na CMC da HEMC yana kama da haka, saboda duka abubuwan da aka samo asali ne na cellulose. Ana yin CMC ta hanyar amsa cellulose tare da acid chloroacetic don samar da ƙungiyoyin carboxymethyl, yayin da HEMC ke yin ta ta hanyar amsa cellulose tare da ethylene oxide da methyl chloride don samar da ƙungiyoyin hydroxyethyl da methyl.

Solubility
Babban bambance-bambancen da ke tsakanin CMC da HEMC 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, HEMC 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
Wani babban bambanci tsakanin CMC da HEMC shine dankon su. CMC yana da danko sosai kuma yana iya samar da maganin gel mai kauri idan an narkar da shi 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. Sabanin haka, HEMC yana da ƙarancin danko fiye da CMC kuma yawanci ana amfani dashi azaman mai kauri ko rheology modifier a aikace-aikace inda ake buƙatar ƙaramin ɗanɗano.

pH Stability
CMC gabaɗaya ya fi tsayayye akan faffadan ƙimar pH fiye da HEMC. 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, HEMC 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 HEMC sun tsaya tsayin daka akan yanayin zafi da yawa, amma akwai bambance-bambance a cikin kwanciyar hankali na thermal. CMC ya fi ƙarfin zafi fiye da HEMC 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. HEMC, 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 HEMC 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. Yawancin lokaci ana amfani da HEMC 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.