Ethers cellulose da aka gyara sune rukuni daban-daban na mahadi na sinadarai waɗanda aka samo daga cellulose, polymer na halitta da ke samuwa a cikin ganuwar tantanin halitta. Cellulose shi ne sarkar madaidaiciyar polymer wanda ya ƙunshi raka'o'in glucose wanda aka haɗa tare da haɗin β-1,4-glycosidic. Ita ce mafi yawan nau'in polymer na halitta a Duniya kuma yana da kaddarorin masu amfani da yawa kamar ƙarfin ƙarfi, ƙarancin ƙima, haɓakar halittu, da sabuntawa.
Ethers cellulose da aka gyara suna samuwa ta hanyar shigar da ƙungiyoyin sinadarai daban-daban a cikin kwayar halitta ta cellulose, wanda ke canza halayensa na jiki da na sinadarai. Ana iya samun wannan gyare-gyare ta hanyoyi da yawa, ciki har da etherification, esterification, da oxidation. Sakamakon gyare-gyaren ethers na cellulose yana da aikace-aikace masu yawa a masana'antu daban-daban, ciki har da abinci, magunguna, kayan shafawa, gine-gine, da kuma kayan aiki.
Ɗaya daga cikin nau'in ether cellulose da aka gyara shine methyl cellulose (MC), wanda aka samo shi ta hanyar amsawar cellulose tare da methyl chloride. MC ba ionic ba ne, polymer mai narkewa mai ruwa wanda ake amfani dashi ko'ina azaman wakili mai kauri a cikin abinci, azaman mai ɗaure a cikin yumbu, kuma azaman sutura a yin takarda. MC yana da fa'idodi da yawa akan sauran masu kauri, kamar ikonsa na samar da gels masu haske, ƙarancin gubarsa, da juriya ga lalatawar enzyme.
Wani nau'in ether cellulose da aka gyara shine hydroxypropyl methyl cellulose (HPMC), wanda aka samo shi ta hanyar amsa cellulose tare da cakuda propylene oxide da methyl chloride. HPMC ba ionic ba ne, polymer mai narkewa mai ruwa wanda aka yi amfani da shi sosai azaman wakili mai kauri a cikin abinci da samfuran kulawa na sirri, azaman ɗaure a cikin allunan magunguna, kuma azaman sutura a cikin masana'antar gini. HPMC yana da fa'idodi da yawa akan sauran masu kauri, kamar ikon sa na samar da barga gels a ƙananan yawa, babban danko a ƙananan yanayin zafi, da kuma dacewa da sauran nau'ikan sinadarai.
Carboxymethyl cellulose (CMC) wani nau'i ne na ether cellulose da aka gyara wanda aka samu ta hanyar amsa cellulose tare da monochloroacetic acid. CMC polymer ce mai narkewar ruwa wacce ake amfani da ita sosai azaman wakili mai kauri, mai daidaitawa, da emulsifier a cikin abinci, magunguna, da samfuran kulawa na sirri. CMC yana da fa'idodi da yawa akan sauran masu kauri, kamar ikonsa na samar da gels masu gaskiya, babban ƙarfin riƙe ruwa, da juriya ga lalatawar enzyme.
Ethyl cellulose (EC) wani nau'i ne na ether cellulose da aka gyara wanda aka kafa ta hanyar amsa cellulose tare da ethyl chloride. EC wani nau'i ne wanda ba na ionic ba, ruwa mai ruwa wanda aka yi amfani da shi sosai a matsayin sutura a cikin masana'antar harhada magunguna. EC yana da fa'idodi da yawa akan sauran sutura, kamar ikonsa na samar da fim mai ci gaba, ƙarancin ɗanɗano, da juriya ga danshi da zafi.
Hydroxyethyl cellulose (HEC) wani nau'i ne na ether cellulose da aka gyara wanda aka samu ta hanyar amsa cellulose tare da ethylene oxide. HEC polymer ce mai narkewa da ruwa wanda aka yi amfani da shi sosai azaman wakili mai kauri a cikin samfuran kulawa na sirri kuma azaman ɗaure a cikin allunan magunguna. HEC yana da fa'idodi da yawa akan sauran masu kauri, kamar ikonsa na samar da gels masu fa'ida, babban ƙarfin ɗaukar ruwa, da dacewa da sauran nau'ikan sinadarai masu yawa.
Kaddarorin da aikace-aikace na ethers cellulose da aka gyara sun dogara da abubuwa da yawa, kamar nau'in rukunin sinadarai da aka gabatar, matakin maye gurbin, nauyin kwayoyin halitta, da solubility. Misali, haɓaka matakin maye gurbin MC ko HPMC na iya ƙara ƙarfin riƙe ruwa da danko, yayin da rage narkewar su. Hakazalika, haɓaka nauyin kwayoyin halitta na CMC na iya ƙara danko da ikonsa na samar da gels, yayin da yake rage ƙarfin riƙe ruwa.
Aikace-aikacen ethers cellulose da aka gyara suna da yawa kuma sun bambanta. A cikin masana'antar abinci, ana amfani da su azaman masu kauri, masu daidaitawa, da emulsifiers a cikin nau'ikan samfura da yawa, gami da miya, miya, riguna, da kayan zaki. Hakanan ana amfani da ethers na cellulose da aka gyara a cikin samar da abinci maras nauyi da ƙarancin kalori, saboda suna iya kwaikwayi nau'in rubutu da kitsen baki ba tare da ƙara adadin kuzari ba. Bugu da ƙari, ana amfani da su azaman sutura da glazes a cikin samfuran kayan abinci don inganta bayyanar su da rayuwar rayuwar su.
A cikin masana'antar harhada magunguna, ana amfani da ethers cellulose da aka gyara azaman masu ɗaure, tarwatsawa, da sutura a cikin allunan da capsules. Ana kuma amfani da su azaman gyare-gyaren danko a cikin tsarin ruwa, kamar su syrups da suspensions. An fi son ethers cellulose da aka gyaggyara a kan sauran abubuwan da ake amfani da su, saboda ba su da ƙarfi, ba su dace ba, kuma suna da ƙarancin guba. Har ila yau, suna ba da iko mai girma akan yawan sakin kwayoyi, wanda zai iya inganta inganci da amincin su.
A cikin masana'antar kayan kwalliya, ana amfani da ethers cellulose da aka gyara azaman masu kauri, emulsifiers, da stabilizers a cikin creams, lotions, da gels. Ana kuma amfani da su azaman masu yin fim a cikin kayan aikin gyaran gashi, kamar su shamfu da kwandishana. Canje-canjen ethers na cellulose na iya inganta rubutu da bayyanar samfuran kayan kwalliya, da haɓaka inganci da kwanciyar hankali.
A cikin masana'antar gine-gine, ana amfani da ethers cellulose da aka gyara a matsayin masu kauri, masu ɗaure, da abubuwan riƙe ruwa a cikin siminti, turmi, da filasta. Za su iya inganta aikin aiki, daidaito, da ƙarfin waɗannan kayan, da kuma rage raguwa da raguwa. Ana kuma amfani da ethers cellulose da aka gyara azaman sutura da manne a cikin rufin bango da bene.
A cikin masana'antar masana'anta, ana amfani da ethers cellulose da aka gyara azaman ma'auni da masu kauri a cikin samar da yadudduka da yadudduka. Suna iya inganta sarrafa kayan masarufi da saƙa, da kuma haɓaka ƙarfinsu da dorewa.
Gabaɗaya, gyare-gyaren ethers cellulose suna da yawa kuma masu mahimmanci masu mahimmanci waɗanda ke da aikace-aikace masu yawa a cikin masana'antu daban-daban. Suna ba da fa'idodi da yawa akan sauran polymers, kamar haɓakar su, haɓakar halittu, da yanayin sabuntawa. Har ila yau, suna ba da babban matsayi na iko akan kayan jiki da sinadarai na samfurori, wanda zai iya inganta ingancin su da aikin su. Don haka, gyare-gyaren ethers na cellulose na iya ci gaba da taka muhimmiyar rawa wajen samar da sababbin samfurori da sababbin abubuwa a nan gaba.
Lokacin aikawa: Afrilu-22-2023