sodium carboxymethylcellulose(SCMC) wani nau'in cellulose ne mai narkewa da ruwa wanda ake amfani dashi a masana'antu daban-daban, kamar abinci, magunguna, da kayan kwalliya, azaman mai kauri, stabilizer, da emulsifier. Tsarin masana'antu na SCMC ya ƙunshi matakai da yawa, gami da alkalization, etherification, tsarkakewa, da bushewa.

1. Alkalization

Mataki na farko a cikin tsarin masana'antu na SCMC shine alkalization na cellulose. Ana samun cellulose daga ɓangaren litattafan almara na itace ko zaren auduga, waɗanda aka rushe zuwa ƙananan ƙwayoyin cuta ta hanyar jiyya na inji da sinadarai. Sa'an nan kuma ana bi da cellulose da aka samu tare da alkali, irin su sodium hydroxide (NaOH) ko potassium hydroxide (KOH), don ƙara yawan aiki da narkewa.

Tsarin alkalization yawanci ya haɗa da haɗa cellulose tare da ingantaccen bayani na NaOH ko KOH a yanayin zafi da matsi. Halin da ke tsakanin cellulose da alkali yana haifar da samuwar sodium ko potassium cellulose, wanda yake da matukar aiki kuma ana iya gyara shi cikin sauƙi.

2. Etherification

Mataki na gaba a cikin tsarin masana'antu na SCMC shine etherification na sodium ko potassium cellulose. Wannan tsari ya ƙunshi gabatarwar ƙungiyoyin carboxymethyl (-CH2-COOH) akan kashin bayan cellulose ta hanyar amsawa tare da chloroacetic acid (ClCH2COOH) ko sodium ko gishirin potassium.

Ana aiwatar da halayen etherification yawanci a cikin cakuda ruwa-ethanol a yanayin zafi da matsi, tare da ƙari na mai kara kuzari, kamar sodium hydroxide ko sodium methylate. Halin yana da matuƙar exothermic kuma yana buƙatar kulawa da hankali game da yanayin amsawa don gujewa zafi mai zafi da lalata samfur.

Matsakaicin etherification, ko adadin ƙungiyoyin carboxymethyl a kowace kwayar cellulose, ana iya sarrafa su ta hanyar daidaita yanayin halayen, kamar ƙaddamarwar chloroacetic acid da lokacin amsawa. Matsayi mafi girma na etherification yana haifar da mafi girman solubility na ruwa da kauri mai kauri na sakamakon SCMC.

3. Tsarkakewa

Bayan amsawar etherification, sakamakon SCMC yawanci ana gurɓata shi da ƙazanta, irin su cellulose, alkali, da chloroacetic acid. Matakin tsarkakewa ya ƙunshi kawar da waɗannan ƙazanta don samun samfurin SCMC mai tsabta da inganci.

Tsarin tsarkakewa ya ƙunshi matakai da yawa na wankewa da tacewa ta amfani da ruwa ko maganin ruwa na ethanol ko methanol. Sakamakon SCMC daga nan sai a cire shi da acid, kamar hydrochloric acid ko acetic acid, don cire duk wani alkali da ya rage kuma a daidaita pH zuwa kewayon da ake so.

4. bushewa

Mataki na ƙarshe a cikin tsarin masana'antu na SCMC shine bushewar samfuran da aka tsarkake. Busasshen SCMC yawanci yana cikin nau'in farin foda ko granule kuma ana iya ƙara sarrafa shi zuwa nau'i daban-daban, kamar mafita, gels, ko fina-finai.

Ana iya aiwatar da tsarin bushewa ta amfani da dabaru daban-daban, kamar bushewar feshi, bushewar ganga, ko bushewar injin, ya danganta da kaddarorin samfuran da ake so da sikelin samarwa. Ya kamata a kula da tsarin bushewa a hankali don guje wa zafi mai yawa, wanda zai iya haifar da lalacewa ko canza launi.

Aikace-aikace na sodium Carboxymethylcellulose

Sodium carboxymethylcellulose (SCMC) ana amfani dashi sosai a masana'antu daban-daban, kamar abinci, magunguna, kayan kwalliya, da kulawa na sirri, saboda kyakkyawan narkewar ruwa, kauri, daidaitawa, da kayan emulsifying.

Masana'antar Abinci

A cikin masana'antar abinci, ana amfani da SCMC azaman mai kauri, mai daidaitawa, da emulsifier a cikin samfuran abinci da yawa, kamar kayan gasa, kayan kiwo, biredi, riguna, da abubuwan sha. Hakanan ana amfani da SCMC azaman mai maye gurbin mai a cikin ƙananan mai da rage yawan abinci mai kalori.