Tsarin Kerawa da Halayen Sodium Carboxymethyl Cellulose

Sodium carboxymethyl cellulose (Na-CMC) polymer ce mai narkewa da ruwa wanda aka samu daga cellulose, wanda ake amfani dashi sosai a aikace-aikacen masana'antu daban-daban kamar abinci, magunguna, kayan kwalliya, yadi, da hako mai.An san shi don kyawawan kauri, ƙarfafawa, da abubuwan ɗaurewa.A cikin wannan labarin, za mu tattauna tsarin masana'antu da halaye na sodium carboxymethyl cellulose.

Tsarin Kera Sodium Carboxymethyl Cellulose

Samar da Na-CMC ya ƙunshi matakai da yawa, ciki har da hakar cellulose daga ɓangaren litattafan almara, auduga na auduga, ko wasu maɓuɓɓuka, sannan gyare-gyaren cellulose don ƙirƙirar ƙungiyoyin carboxymethyl.Ana iya taƙaita tsarin masana'anta na Na-CMC kamar haka:

1. Hakar Cellulose: Ana fitar da kwayar halitta daga ɓangaren itace ko wasu tushe ta hanyar jerin jiyya na inji da sinadarai, gami da ɗigon ruwa, bleaching, da tacewa.
2. Maganin Alkali: Ana maganin cellulose da aka fitar tare da maganin alkaline mai ƙarfi, yawanci sodium hydroxide (NaOH), don kumbura filayen cellulose da fallasa ƙungiyoyin hydroxyl masu amsawa.
3. Etherification: Ana amsa filayen cellulose da suka kumbura tare da sodium monochloroacetate (SMCA) a gaban mai kara kuzari na alkaline kamar sodium carbonate (Na2CO3) don gabatar da ƙungiyoyin carboxymethyl akan kashin bayan cellulose.
4. Neutralization: The carboxymethylated cellulose an neutralized da wani acid kamar hydrochloric acid (HCl) ko sulfuric acid (H2SO4) don samar da Na-CMC.
5. Tsarkakewa da bushewa: Ana tsaftace Na-CMC ta hanyar wankewa da tacewa don cire duk wani datti sannan a bushe don samun foda mai kyauta.

Halayen Sodium Carboxymethyl Cellulose

Kaddarorin Na-CMC na iya bambanta dangane da matakin maye gurbin (DS), wanda ke nufin adadin ƙungiyoyin carboxymethyl ta rukunin anhydroglucose (AGU) na cellulose.Wasu mahimman halayen Na-CMC sune:

1. Solubility: Na-CMC yana da ruwa mai narkewa sosai kuma yana iya samar da bayyananniyar mafita a cikin ruwa.
2. Danko: Danko na Na-CMC mafita ya dogara da maida hankali, DS, da nauyin kwayoyin polymer.An san Na-CMC don kyawawan kaddarorin kauri kuma ana iya amfani da shi don ƙara ɗanƙon mafita da dakatarwa.
3. Ƙarfafa pH: Na-CMC yana da kwanciyar hankali a kan nau'o'in pH masu yawa, daga acidic zuwa alkaline, yana sa ya dace don amfani a aikace-aikace daban-daban.
4. Haƙuri na Gishiri: Na-CMC yana da juriya ga gishiri kuma yana iya kiyaye danko da kwanciyar hankali a gaban electrolytes.
5. Ƙarfafawar thermal: Na-CMC yana da ƙarfi a babban yanayin zafi kuma ana iya amfani dashi a cikin matakai daban-daban na masana'antu waɗanda ke buƙatar yanayin zafi mai zafi.
6. Biodegradability: Na-CMC abu ne na halitta kuma ana iya zubar dashi cikin aminci a cikin muhalli.

Kammalawa

Sodium carboxymethyl cellulose ne m polymer cewa shi ne yadu amfani a daban-daban masana'antu aikace-aikace saboda da kyau kwarai thickening, stabilizing, da kuma dauri Properties.Tsarin masana'antu na Na-CMC ya haɗa da cirewar cellulose tare da gyare-gyaren cellulose don ƙirƙirar ƙungiyoyin carboxymethyl.Na-CMC yana da halaye da yawa kamar solubility, danko, kwanciyar hankali pH, haƙurin gishiri, kwanciyar hankali na thermal, da biodegradability, wanda ya sa ya dace don amfani a aikace-aikace daban-daban.Ana iya daidaita kaddarorin Na-CMC ta hanyar sarrafa matakin maye gurbin, nauyin kwayoyin halitta, da maida hankali, yana mai da shi kayan aiki mai mahimmanci don hanyoyin masana'antu daban-daban.