CMC yana amfani da shi a Masana'antar Detergent

Carboxymethyl cellulose (kuma aka sani da CMC da sodium carboxymethyl cellulose) za a iya bayyana a matsayin anionic ruwa-soluble polymer, samar daga halitta cellulose ta etherification, maye gurbin da hydroxyl kungiyar da carboxymethyl kungiyar a kan cellulose Sarkar carboxymethyl cellulose da ake amfani da a matsayin mai ɗaure. thickener, dakatarwa wakili da filler a daban-daban aikace-aikace.

Ƙa'idar amsawa

Babban sinadaran halayen CMC sune alkalization dauki na cellulose da alkali don samar da alkali cellulose da etherification dauki na alkali cellulose da monochloroacetic acid.

Mataki 1: Alkalization: [C6H7O2(OH) 3]n + nNaOH→[C6H7O2(OH) 2ONa]n + nH2O

Mataki 2: Etherification: [C6H7O2(OH) 2ONa] n + nClCH2COONa→[C6H7O2(OH) 2OCH2COONa]n + nNaCl

Halin sinadarai

An shirya abin da aka samu na cellulose tare da maye gurbin carboxymethyl ta hanyar magance cellulose tare da sodium hydroxide don samar da alkali cellulose, sa'an nan kuma amsa tare da monochloroacetic acid. Rukunin glucose wanda ya ƙunshi cellulose yana da ƙungiyoyin hydroxyl guda 3 waɗanda za a iya maye gurbinsu, don haka ana iya samun samfuran tare da digiri daban-daban na maye gurbin. A matsakaici, ana gabatar da 1 mmol na carboxymethyl a kowace gram 1 na busassun nauyi. Ba shi da narkewa a cikin ruwa da dilute acid, amma ana iya kumbura kuma a yi amfani da shi don musayar chromatography. pKa na carboxymethyl shine kusan 4 a cikin ruwa mai tsabta kuma kusan 3.5 a cikin 0.5mol/L NaCl. Yana da raunin cation na acidic kuma yawanci ana amfani dashi don rabuwa tsaka tsaki da sunadarai na asali a pH 4 ko sama. Wadanda ke da fiye da kashi 40% na ƙungiyoyin hydroxyl da aka maye gurbinsu da carboxymethyl ana iya narkar da su cikin ruwa don samar da ingantaccen maganin colloidal mai ƙarfi.

Halayen samfur nawanka Babban darajar CMC

Bayan an kara da shi a cikin wanka, daidaito yana da girma, m, kuma baya komawa bakin ciki;

Zai iya yin kauri yadda ya kamata kuma ya daidaita abun da ke cikin ruwan wanka;

Ƙara foda na wankewa da ruwan wanka na iya hana dattin da aka wanke daga daidaitawa akan masana'anta. Ƙara 0.5-2% zuwa kayan aikin roba na iya samun sakamako mai gamsarwa;

CMC yana amfani da shi a Masana'antar Detergent, Galibimai da hankali kan da emulsification da m colloid Properties na CMC. Anion da aka samar a lokacin aikin wankewa zai iya sa fuskar wankewar da dattin datti ya yi mummunan caji, ta yadda dattin datti suna da rabuwa na lokaci a cikin lokaci na ruwa kuma suna da tasiri iri ɗaya a saman tsayayyen wanka. Ƙarfafawa, yana hana datti daga sake ajiyewa a kan wanki, zai iya kula da fararen fararen yadudduka, da launuka masu haske na yadudduka masu launi.

Aiki da CMC inwanka

1. Yin kauri, tarwatsawa da emulsifying, yana iya ɗaukar tabon mai a kusa da tabo don nannade tabon mai, ta yadda za a dakatar da tabon mai a tarwatse a cikin ruwa, kuma ya samar da fim ɗin hydrophilic a saman abubuwan da aka wanke, ta haka zai hana. tabo mai mai daga tuntuɓar kayan da aka wanke kai tsaye.
2. Babban matsayi na maye gurbin da daidaituwa, kyakkyawar nuna gaskiya;
3. Good dispersibility a cikin ruwa da kuma mai kyau resorption juriya;
4. Super high danko da kyau kwanciyar hankali.