Carboxymethyl Cellulose (Lus Askiv: Carboxymethyl Cellulose, CMC luv luv) yog ib qho khoom noj khoom haus uas nquag siv, thiab nws cov ntsev ntsev (sodium carboxymethyl cellulose) feem ntau yog siv los ua cov thickener thiab muab tshuaj txhuam.
Carboxymethyl cellulose yog hu ua muaj monosodium glutamate, uas yog dav siv nyob rau hauv industrial ntau lawm thiab coj zoo siv tus nqi rau ntau lawm teb. Carboxymethyl cellulose yog cov khoom siv hmoov, tsis muaj tshuaj lom, tab sis nws yooj yim rau yaj hauv dej. Nws yog soluble hauv dej txias thiab dej kub, tab sis nws yog insoluble hauv organic solvents. Nws yuav dhau los ua kua nplaum tom qab yaj, tab sis cov viscosity yuav txawv vim qhov kub thiab txias. Vim nws cov khoom tshwj xeeb, muaj ntau yam tshwj xeeb hauv kev khaws cia thiab kev thauj mus los.
Lub cev thiab tshuaj muaj zog
Carboxymethyl cellulose yog ib yam khoom dawb los yog lub teeb daj, tsis muaj ntxhiab, tsis qab, hygroscopic granules, hmoov los yog nplua fibers.
※ Pkev kho mob
Carboxymethylcellulose yog synthesized los ntawm lub hauv paus-catalyzed cov tshuaj tiv thaiv cellulose nrog chloroacetic acid. Polar (organic acid) carboxyl pawg ua cellulose soluble thiab chemically reactive. Tom qab cov tshuaj tiv thaiv thawj zaug, qhov sib xyaw ua ke tau muab kwv yees li 60% CMC ntxiv rau 40% ntsev (sodium chloride thiab sodium glycolate). Cov khoom yog ib tug thiaj li hu ua industrial CMC rau detergents. Cov ntsev no raug tshem tawm los ntawm kev siv cov txheej txheem ua kom huv ntxiv los tsim cov CMC ntshiab siv rau hauv cov khoom noj, tshuaj thiab tshuaj dentifrices (cov tshuaj txhuam hniav). Cov qib nruab nrab "semi-purified" kuj tau tsim, feem ntau siv hauv daim ntawv thov xws li kev kho dua tshiab ntawm cov ntaub ntawv khaws cia. Cov khoom ua haujlwm ntawm CMC nyob ntawm seb qhov kev hloov pauv ntawm cov qauv cellulose (uas yog, muaj pes tsawg pawg hydroxyl koom nrog kev hloov pauv cov tshuaj tiv thaiv), nrog rau cov saw ntev ntawm cov pob txha cellulose thiab qib ntawm kev sib sau ntawm cov pob txha cellulose. . Carboxymethyl hloov pauv.
※ Adaim ntawv thov
Carboxymethylcellulose yog siv nyob rau hauv cov zaub mov raws li ib tug viscosity modifier los yog thickener nyob rau hauv lub E tooj E466 los yog E469 (los ntawm enzymatic hydrolysis) thiab kom stabilize emulsions nyob rau hauv ntau yam khoom, nrog rau cov ice cream. Nws kuj yog ib feem ntawm ntau yam khoom uas tsis yog khoom noj xws li tshuaj txhuam hniav, laxatives, tshuaj noj, tshuaj pleev xim rau hauv dej, tshuaj ntxuav tes, textile sizing agents, reusable thermal packaging thiab ntau yam khoom ntawv. Nws yog siv feem ntau vim tias nws muaj viscosity siab, tsis muaj tshuaj lom thiab feem ntau suav tias yog hypoallergenic vim lub ntsiab ntawm fibers yog softwood ntoo pulp lossis paj rwb linters. Carboxymethylcellulose yog siv dav hauv cov khoom noj tsis muaj gluten thiab txo cov rog. Hauv cov ntxhua khaub ncaws ntxhua khaub ncaws, nws yog siv los ua cov av tshem tawm cov polymer tsim los tso rau hauv paj rwb thiab lwm yam cellulosic fabrics, tsim kom muaj kev cuam tshuam tsis zoo rau cov av hauv dej cawv. Carboxymethylcellulose yog siv los ua cov roj nplua nyeem hauv cov kua muag dag. Carboxymethylcellulose kuj tseem siv los ua tus neeg sawv cev thickening, piv txwv li, hauv kev lag luam roj drilling, qhov twg nws yog ib feem ntawm cov av nkos, qhov twg nws yog siv los ua viscosity modifier thiab dej tuav tus neeg sawv cev. Piv txwv li, sodium CMC (Na CMC) tau siv los ua kev tswj tsis zoo rau cov plaub hau poob hauv luav. Knitted fabrics ua los ntawm cellulose, xws li paj rwb lossis viscose rayon, tuaj yeem hloov mus rau CMCs thiab siv ntau yam kev siv kho mob.
Post lub sij hawm: Dec-03-2022