Kudziwa za sodium carboxymethyl cellulose

Makhalidwe a Sodium Carboxymethyl Cellulose

CMC ndi chochokera pa cellulose ndi digiri ya shuga polymerization ya 200-500 ndi digiri ya etherification ya 0.6-0.7. Ndi ufa woyera kapena wosayera kapena zinthu za fibrous, zopanda fungo komanso hygroscopic. Mlingo wa kulowetsedwa kwa gulu la carboxyl (mlingo wa etherification) umatsimikizira zomwe zili. Pamene digiri ya etherification ili pamwamba pa 0.3, imasungunuka mu njira ya alkali. Kukhuthala kwa njira yamadzimadzi kumatsimikiziridwa ndi pH ndi digiri ya polymerization. Pamene mlingo wa etherification ndi 0.5-0.8, sipadzakhala precipitate mu asidi. CMC mosavuta sungunuka m'madzi ndi kukhala mandala viscous njira m'madzi, ndi mamasukidwe akayendedwe ake zimasiyanasiyana ndi ndende yankho ndi kutentha. Kutentha kumakhala kosasunthika pansi pa 60 ° C, ndipo kukhuthala kumachepa mukatenthedwa kwa nthawi yaitali pa kutentha pamwamba pa 80 ° C.

Kukula kwa ntchito ya sodium carboxymethyl cellulose

Lili ndi ntchito zosiyanasiyana monga thickening, suspending, emulsifying ndi stabilizing. Popanga chakumwa, chimagwiritsidwa ntchito kwambiri ngati chokhuthala cha zakumwa zamadzimadzi zamtundu wa zamkati, monga emulsification stabilizer ya zakumwa zomanga thupi komanso ngati stabilizer ya zakumwa za yogurt. Mlingo nthawi zambiri ndi 0.1% -0.5%.