Tsarin Manufacturing na Sodium Carboxymethylcellulose

Tsarin kera sinadarin sodium carboxymethylcellulose (CMC) ya ƙunshi matakai da dama, ciki har da shirya cellulose, etherification, tsarkakewa, da busarwa. Ga taƙaitaccen bayani game da tsarin kera da aka saba:

1. Shiri na Cellulose: Tsarin yana farawa ne da shirya cellulose, wanda yawanci ana samunsa daga ɓangaren litattafan itace ko auduga. Da farko ana tsarkake cellulose kuma ana tace shi don cire ƙazanta kamar lignin, hemicellulose, da sauran gurɓatattun abubuwa. Wannan cellulose mai tsabta yana aiki a matsayin kayan farko don samar da CMC.
2. Alkalancin Alkalancin: Sannan ana yi wa cellulose mai tsabta magani da maganin alkaline, yawanci sodium hydroxide (NaOH), don ƙara yawan amsawarsa da kuma sauƙaƙe amsawar etherification daga baya. Alkalancin alkalancin kuma yana taimakawa wajen kumbura da buɗe zaruruwan cellulose, wanda hakan ke sa su zama masu sauƙin samu ga gyare-gyaren sinadarai.
3. Amsar Etherification: Ana yin maganin cellulose mai alkali da monochloroacetic acid (MCA) ko gishirin sodium, sodium monochloroacetate (SMCA), a gaban mai kara kuzari a ƙarƙashin yanayi mai sarrafawa. Wannan amsawar etherification ya ƙunshi maye gurbin ƙungiyoyin hydroxyl akan sarƙoƙin cellulose tare da ƙungiyoyin carboxymethyl (-CH2COONa). Matsayin maye gurbin (DS), wanda ke wakiltar matsakaicin adadin ƙungiyoyin carboxymethyl a kowace sashin glucose na sarƙoƙin cellulose, ana iya sarrafa shi ta hanyar daidaita sigogin amsawa kamar zafin jiki, lokacin amsawa, da yawan amsawa.
4. Tsaftacewa: Bayan amsawar etherification, ana tace samfurin da aka samar don mayar da duk wani rukunin acidic da ya rage zuwa sifar gishirin sodium (carboxymethylcellulose sodium). Ana samun wannan ta hanyar ƙara maganin alkaline, kamar sodium hydroxide (NaOH), zuwa ga cakudawar amsawa. Tsaftacewa kuma yana taimakawa wajen daidaita pH na maganin da kuma daidaita samfurin CMC.
5. Tsarkakewa: Sannan ana tsarkake sinadarin sodium carboxymethylcellulose mai ɗanɗano don cire ƙazanta, abubuwan da ba su da wani tasiri, da kuma abubuwan da suka rage daga cakudawar amsawar. Hanyoyin tsarkakewa na iya haɗawa da wankewa, tacewa, centrifugation, da busarwa. Yawanci ana wanke CMC mai tsabta da ruwa don cire ragowar alkali da gishiri, sannan sai a tace ko centrifugation don raba samfurin CMC mai ƙarfi daga matakin ruwa.
6. Busarwa: A ƙarshe ana busar da sinadarin sodium carboxymethylcellulose mai tsabta don cire danshi mai yawa da kuma samun danshi da ake so don ajiya da kuma ci gaba da sarrafawa. Hanyoyin busarwa na iya haɗawa da busar da iska, busar da feshi, ko busar da ganga, ya danganta da halayen samfurin da ake so da kuma girman masana'anta.

Samfurin sodium carboxymethylcellulose da aka samar daga gare shi foda ne mai launin fari zuwa fari, wanda ke da kyakkyawan narkewar ruwa da kuma kaddarorin rheological. Ana amfani da shi sosai a matsayin mai kauri, mai daidaita, mai ɗaurewa, da kuma mai gyara rheology a masana'antu daban-daban, ciki har da abinci, magunguna, kayan kwalliya, yadi, da aikace-aikacen masana'antu.