Carboxymethyl cellulose (CMC) da hydroxyethyl cellulose (HEC) su ne nau'in cellulose guda biyu na kowa, waɗanda aka yi amfani da su a abinci, magani, kayan shafawa, kayan gini da sauran fannoni. Kodayake an samo su daga cellulose na halitta kuma an samo su ta hanyar gyare-gyaren sinadarai, akwai bambance-bambance a bayyane a cikin tsarin sinadarai, kaddarorin physicochemical, filayen aikace-aikace da tasirin aiki.
1. Tsarin sinadaran
Babban fasalin fasalin carboxymethyl cellulose (CMC) shine cewa ƙungiyoyin hydroxyl akan ƙwayoyin cellulose an maye gurbinsu da ƙungiyoyin carboxymethyl (-CH2COOH). Wannan gyare-gyaren sinadarai yana sa CMC ya zama mai narkewa sosai, musamman a cikin ruwa don samar da maganin colloidal mai danko. Dankowar maganinta yana da alaƙa da kusanci da matakin maye gurbinsa (watau matakin maye gurbin carboxymethyl).
Hydroxyethyl cellulose (HEC) an kafa ta ta maye gurbin ƙungiyoyin hydroxyl a cikin cellulose tare da hydroxyethyl (-CH2CH2OH). Ƙungiyar hydroxyethyl a cikin kwayoyin HEC yana ƙara haɓakar ruwa da hydrophilicity na cellulose, kuma zai iya samar da gel a ƙarƙashin wasu yanayi. Wannan tsarin yana ba da damar HEC don nuna kyakkyawan kauri, dakatarwa da tasirin daidaitawa a cikin maganin ruwa.
2. Halin jiki da sinadarai
Ruwa mai narkewa:
Ana iya narkar da CMC gaba daya a cikin ruwan sanyi da ruwan zafi don samar da maganin colloidal na gaskiya ko translucent. Maganin sa yana da babban danko, kuma danko yana canzawa tare da zazzabi da ƙimar pH. Hakanan ana iya narkar da HEC a cikin ruwan sanyi da ruwan zafi, amma idan aka kwatanta da CMC, adadin narkar da shi yana raguwa kuma yana ɗaukar lokaci mai tsawo don samar da mafita iri ɗaya. Maganin danko na HEC yana da ƙananan ƙananan, amma yana da mafi kyawun juriya da kwanciyar hankali.
Daidaita danko:
Dankowar CMC yana da sauƙin tasiri ta ƙimar pH. Yawancin lokaci ya fi girma a ƙarƙashin tsaka tsaki ko yanayin alkaline, amma za a rage danko sosai a ƙarƙashin yanayin acidic mai ƙarfi. Danko na HEC ba shi da tasiri ta ƙimar pH, yana da fa'idar kwanciyar hankali na pH, kuma ya dace da aikace-aikace a ƙarƙashin yanayi daban-daban na acidic da alkaline.
Juriya na gishiri:
CMC yana kula da gishiri sosai, kuma kasancewar gishiri zai rage yawan dankon maganin sa. HEC, a gefe guda, yana nuna ƙarfin juriya na gishiri kuma har yanzu yana iya kula da tasiri mai kyau a cikin yanayin gishiri mai girma. Sabili da haka, HEC yana da fa'ida a bayyane a cikin tsarin da ke buƙatar amfani da gishiri.
3. Yankunan aikace-aikace
Masana'antar abinci:
Ana amfani da CMC sosai a cikin masana'antar abinci azaman mai kauri, mai ƙarfi da emulsifier. Misali, a cikin kayayyaki irin su ice cream, abubuwan sha, jams, da miya, CMC na iya inganta dandano da kwanciyar hankali na samfurin. HEC ba a cika yin amfani da shi ba a masana'antar abinci kuma ana amfani da shi a cikin wasu samfuran tare da buƙatu na musamman, kamar abinci mai ƙarancin kalori da ƙarin kayan abinci na musamman.
Magunguna da kayan shafawa:
Ana amfani da CMC sau da yawa don shirya allunan ci gaba na magunguna, ruwan ido, da sauransu, saboda kyakkyawan yanayin sa da aminci. Ana amfani da HEC sosai a cikin kayan kwalliya irin su lotions, creams da shampoos saboda kyawawan kayan aikin fim da kayan daɗaɗɗa, wanda zai iya ba da kyakkyawar jin dadi da tasiri.
Kayan gini:
A cikin kayan gini, ana iya amfani da CMC da HEC a matsayin masu kauri da masu riƙe ruwa, musamman a cikin siminti da kayan gypsum. HEC an fi amfani dashi a cikin kayan gini saboda kyakkyawan juriya na gishiri da kwanciyar hankali, wanda zai iya inganta aikin gine-gine da ƙarfin kayan aiki.
Hakar mai:
A cikin hakar mai, CMC, a matsayin ƙari don hako ruwa, zai iya sarrafa danko da asarar ruwa na laka yadda ya kamata. HEC, saboda girman juriyar gishiri da kauri, ya zama muhimmin sashi a cikin sinadarai na filayen mai, ana amfani da shi wajen hako ruwa da karyewar ruwa don inganta ingantaccen aiki da fa'idodin tattalin arziki.
4. Kariyar muhalli da haɓakar halittu
Dukansu CMC da HEC an samo su ne daga cellulose na halitta kuma suna da kyakkyawan yanayin halitta da abokantakar muhalli. A cikin yanayin yanayi, ƙwayoyin cuta za su iya lalata su don samar da abubuwa marasa lahani kamar carbon dioxide da ruwa, rage gurɓataccen yanayi. Bugu da ƙari, saboda ba su da guba kuma ba su da lahani, ana amfani da su sosai a cikin kayan da ke hulɗa da jikin mutum kai tsaye, kamar abinci, magunguna da kayan shafawa.
Ko da yake carboxymethyl cellulose (CMC) da hydroxyethyl cellulose (HEC) duka biyu samu na cellulose, suna da gagarumin bambance-bambance a cikin sinadaran tsarin, physicochemical Properties, aikace-aikace filayen da kuma aiki effects. Ana amfani da CMC sosai a abinci, magunguna, hakar mai da sauran fagage saboda yawan danko da kuma saurin tasirin muhalli. HEC, duk da haka, an fi amfani dashi a cikin kayan shafawa, kayan gini, da dai sauransu saboda kyakkyawan juriya na gishiri, kwanciyar hankali da kayan aikin fim. Lokacin zabar amfani da shi, ya zama dole a zaɓi mafi dacewa da aka samo asali na cellulose bisa ga takamaiman yanayin aikace-aikacen kuma yana buƙatar cimma mafi kyawun tasirin amfani.
Lokacin aikawa: Agusta-21-2024