Sodium carboxymethylcellulose (NaCMC) iyo karboxymethylcellulose (CMC) labaduba waa dheesha cellulose, polymer dabiici ah oo laga helo gidaarada unugyada dhirta. Iskudhisyadani waxay leeyihiin codsiyo warshado kala duwan, oo ay ku jiraan cuntada, dawooyinka, dunta, iyo kuwo kale.
Sodium Carboxymethylcellulose (NaCMC):
1.Qaabka kiimikaad:
NaCMC waxaa laga soo saaraa cellulose iyada oo loo marayo habka wax ka beddelka kiimikada. Kooxaha Carboxymethyl (-CH2-COOH) ayaa lagu soo bandhigay qaab-dhismeedka cellulose, iyo ions sodium waxay la xiriiraan kooxahan.
Cusbada soodhiyamka ee CMC waxay siisaa milanka biyaha polymerka.
2. Soluble:
NaCMC waa biyo-milmi kara waxayna samaysaa xal viscous ah. Joogitaanka ions sodium waxay kor u qaadaysaa milmaheeda biyaha marka loo eego cellulose aan la beddelin.
3. Astaamaha iyo shaqooyinka:
Waxay u shaqeysaa sidii dhumuc weyn, xasiliye iyo wakiilka biyaha haynta ee codsiyo kala duwan.
Wuxuu muujiyaa dabeecadda khafiifka ah ee pseudoplastic ama xiirid-dhoobo, taasoo la macno ah in maw-jiifkiisu hoos u dhaco cadaadiska xiirid.
4. Codsiga:
Warshadaha cuntada: Waxa loo isticmaalaa sidii wax-soo-jiidhaynta alaabta cuntada sida suugada, jalaatada iyo alaabta la dubay.
Daawooyinka: la isticmaalayqaab-dhismeedkeeda ku-xidhka iyo kor u qaadida viscosity-yada.
Qodista saliidda: waxaa loo isticmaalaa in lagu xakameeyo viscosity iyo khasaaraha biyaha ee dareerayaasha qodaya.
5. Wax soo saar:
Isku-dubarid falcelinta cellulose leh sodium hydroxide iyo monochloroacetic acid.
Carboxymethylcellulose (CMC):
1.Qaabka kiimikaad:
CMC macno ballaadhan waxa ay tilmaamaysaa qaabka karboxymethylated ee cellulose. Waa laga yaabaa ama ma noqon kartola xidhiidha ion sodium.
Kooxaha Carboxymethyl waxaa lagu soo geliyaa laf dhabarta cellulose.
2. Soluble:
CMC waxay u jiri kartaa qaabab badan, oo ay ku jiraan cusbada sodium (NaCMC) iyo cusbada kale sida calcium CMC (CaCMC).
Soodhiyamka CMC waa qaabka ugu badan ee biyaha lagu milmo, laakiin waxay ku xidhan tahay codsiga, CMC waxa kale oo loo bedeli karaa inay noqoto mid ku milmay biyaha.
3. Tilmaamaha iyo Functions:
La mid ah NaCMC, CMC waxaa lagu qiimeeyaa dhumucdeeda, xasilinteeda, iyo sifaheeda ilaalinta biyaha.
Doorashada CMC type (sodium, calcium, iwm.) waxay ku xiran tahay sifooyinka la doonayo ee alaabta kama dambaysta ah.
4. Codsiga:
Si weyn loogu isticmaalo warshadaha cuntada, daawooyinka, dharka, dhoobada iyo wax soo saarka waraaqaha.
Qaab kala duwansee CMC waxaa lagu dooran karaa iyadoo lagu saleynayo shuruudaha gaarka ah ee codsiga.
5. Wax soo saar:
Carboxymethylation of cellulose waxa laga yaabaa inay ku lug yeelato xaalado falcelin oo kala duwan iyo reagents, taasoo horseedaysa samaynta noocyo kala duwan oo CMC ah.
Farqiga ugu weyn ee u dhexeeya sodium CMC iyo CMC waa joogitaanka ions sodium. Sodium CMC waxay si gaar ah ula jeedaa milixda sodium ee karboxymethyl cellulose, taas oo ah mid aad u biyo-milmi karta. CMC, dhinaca kale, waa erey ballaadhan oo daboolaya noocyo kala duwan oo karboxymethylated cellulose ah, oo ay ku jiraan sodium iyo cusbada kale, mid kasta oo leh qalab u gaar ah iyo codsiyada. Doorashada u dhaxaysa sodium CMC iyo CMC waxay ku xiran tahay isticmaalka loogu talagalay iyo sifooyinka la doonayo ee alaabta dhamaadka.
Waqtiga boostada: Jan-16-2024