Sodium carboxymethylcellulose (CMC) yog ib qho polymer uas siv tau ntau yam thiab siv tau ntau yam hauv ntau yam lag luam. Cov tshuaj no yog los ntawm cellulose, ib qho polymer ntuj uas pom muaj nyob rau hauv cov phab ntsa ntawm cov nroj tsuag. CMC yog tsim los ntawm kev hloov kho cellulose los ntawm kev qhia cov carboxymethyl pawg rau hauv cov cellulose backbone. Cov sodium carboxymethylcellulose uas tshwm sim muaj cov khoom tshwj xeeb uas ua rau nws muaj txiaj ntsig zoo rau ntau yam kev siv.
Cov Qauv Molecular:
Cov qauv molecular ntawm sodium carboxymethylcellulose muaj cov cellulose backbone nrog cov carboxymethyl pawg (-CH2-COO-Na) txuas nrog qee cov hydroxyl pawg ntawm cov glucose units. Qhov kev hloov kho no muab solubility thiab lwm yam khoom zoo rau cellulose polymer.
Kev yaj thiab cov khoom siv daws teeb meem:
Ib qho ntawm cov khoom tseem ceeb ntawm CMC yog nws cov dej solubility. Sodium carboxymethyl cellulose yooj yim soluble hauv dej thiab tsim cov kua pob tshab viscous. Solubility tuaj yeem hloov kho los ntawm kev hloov qib ntawm kev hloov pauv (DS), uas yog tus lej nruab nrab ntawm cov carboxymethyl pawg ib chav glucose hauv cov saw cellulose.
Cov khoom rheological:
Qhov kev coj cwj pwm rheological ntawm CMC cov kua yog qhov tseem ceeb. Qhov viscosity ntawm CMC cov kua nce nrog rau kev nce concentration thiab nyob ntawm qib ntawm kev hloov pauv. Qhov no ua rau CMC ua ib qho thickener zoo hauv ntau yam kev siv, suav nrog zaub mov, tshuaj thiab cov txheej txheem kev lag luam.
Cov yam ntxwv ntawm Ionic:
Qhov muaj cov sodium ions nyob rau hauv cov carboxymethyl pawg ua rau CMC muaj tus cwj pwm ionic. Qhov ionic xwm txheej no tso cai rau CMC sib cuam tshuam nrog lwm cov hom hluav taws xob hauv cov kua, ua rau nws muaj txiaj ntsig zoo rau cov ntawv thov uas xav tau kev sib txuas lossis kev tsim gel.
Kev rhiab heev ntawm pH:
Qhov solubility thiab cov khoom ntawm CMC raug cuam tshuam los ntawm pH. CMC muaj qhov solubility siab tshaj plaws thiab ua pov thawj nws qhov kev ua tau zoo tshaj plaws hauv qab cov xwm txheej alkaline me ntsis. Txawm li cas los xij, nws tseem ruaj khov ntawm ntau qhov pH, muab kev ywj pheej rau ntau yam kev siv.
Cov yam ntxwv ntawm zaj duab xis:
Sodium carboxymethylcellulose muaj peev xwm tsim cov zaj duab xis, ua rau nws tsim nyog rau cov ntawv thov uas xav tau kev tsim cov zaj duab xis nyias lossis cov txheej txheej. Cov yam ntxwv no tuaj yeem siv los tsim cov zaj duab xis noj tau, cov txheej txheej ntsiav tshuaj, thiab lwm yam.
Ruaj khov:
CMC ruaj khov nyob rau hauv ntau yam xwm txheej ib puag ncig, suav nrog qhov kub thiab pH hloov pauv. Qhov kev ruaj khov no ua rau nws lub txee ntev thiab haum rau ntau yam kev siv.
Cov tshuaj emulsion stabilizer:
CMC ua haujlwm ua ib qho emulsifier zoo thiab pab tswj cov emulsions hauv cov khoom noj thiab cov tshuaj pleev ib ce. Nws txhim kho qhov ruaj khov ntawm cov roj-hauv-dej emulsions, pab txhim kho qhov zoo thiab lub neej txee ntawm cov khoom.
Kev khaws dej:
Vim nws muaj peev xwm nqus dej, CMC siv ua tus neeg sawv cev khaws dej hauv ntau yam lag luam. Cov yam ntxwv no muaj txiaj ntsig zoo rau cov ntawv thov xws li textiles, qhov twg CMC pab tswj cov dej noo ntawm cov ntaub thaum lub sijhawm sib txawv.
Kev puas tsuaj ntawm cov tsiaj txhu:
Sodium carboxymethylcellulose suav hais tias yog biodegradable vim nws yog los ntawm cellulose, ib qho polymer uas muaj nyob hauv ntuj. Qhov no yog ib qho zoo rau ib puag ncig thiab ua raws li qhov kev thov ntawm cov khoom siv ruaj khov uas nce ntxiv thoob plaws hauv kev lag luam.
daim ntawv thov:
kev lag luam zaub mov:
CMC yog dav siv ua ib qho thickener, stabilizer thiab texturizer hauv zaub mov.
Nws ua rau cov kua ntses, cov khoom hnav khaub ncaws thiab cov khoom noj mis nyuj zoo dua.
tshuaj:
CMC yog siv los ua ib qho binder hauv cov tshuaj ntsiav tshuaj.
Nws yog siv rau hauv cov tshuaj pleev kom muab viscosity thiab txhim kho kev ruaj khov ntawm cov gels thiab cream.
ntaub:
CMC siv rau hauv kev ua cov ntaub ua ib tus neeg sawv cev sizing thiab ib tus neeg sawv cev thickening rau kev luam ntawv pastes.
Nws txhim kho cov xim pleev rau cov ntaub thiab txhim kho qhov zoo ntawm kev luam ntawv.
Kev Lag Luam Roj thiab Roj Av:
CMC yog siv rau hauv cov kua dej drilling los tswj cov viscosity thiab cov khoom seem.
Nws ua haujlwm ua tus txo cov kua dej thiab txhim kho kev ruaj khov ntawm cov av nkos drilling.
Kev lag luam ntawv:
CMC yog siv los ua tus neeg sawv cev txheej ntawv los txhim kho lub zog thiab kev luam tawm ntawm daim ntawv.
Nws ua haujlwm ua ib qho kev pab khaws cia hauv cov txheej txheem ua ntawv.
Cov khoom siv tu tus kheej:
CMC pom muaj ntau yam khoom siv rau tus kheej xws li tshuaj txhuam hniav thiab tshuaj zawv plaub hau ua cov khoom ua kom tuab thiab ruaj khov.
Nws pab txhawb rau qhov kev ntxhib los mos thiab kev sib xws ntawm cov qauv tshuaj pleev ib ce.
Cov tshuaj ntxuav thiab cov tshuaj ntxuav:
CMC yog siv los ua cov khoom siv thickener thiab stabilizer hauv cov tshuaj ntxuav kua.
Nws ua rau cov viscosity ntawm cov tshuaj ntxuav kom huv si, txhim kho nws cov kev ua tau zoo.
Cov Khoom Siv Ua Los Ntawm Av nplaum thiab Kev Tsim Vaj Tsev:
CMC yog siv los ua tus binder thiab rheology modifier hauv ceramics.
Nws yog siv rau hauv cov ntaub ntawv tsim kho kom txhim kho kev khaws dej thiab kev tsim kho.
Kev lom thiab kev nyab xeeb:
Carboxymethylcellulose feem ntau lees paub tias muaj kev nyab xeeb (GRAS) los ntawm cov koom haum tswj hwm rau kev siv hauv cov khoom noj thiab tshuaj. Nws tsis muaj tshuaj lom thiab tsis ua rau mob, ua rau nws siv dav dua.
xaus lus:
Sodium carboxymethyl cellulose yog ib hom polymer uas muaj ntau yam kev siv hauv ntau yam lag luam. Nws cov yam ntxwv tshwj xeeb, suav nrog kev yaj dej, tus cwj pwm rheological, cov yam ntxwv ionic thiab cov peev xwm tsim zaj duab xis, ua rau nws yog ib qho khoom xyaw muaj txiaj ntsig hauv cov khoom noj, tshuaj, textiles thiab ntau lwm yam khoom. Raws li kev lag luam txuas ntxiv nrhiav cov ntaub ntawv ruaj khov thiab ntau yam khoom siv, sodium carboxymethyl cellulose yuav tseem ceeb dua, ua kom nws txoj haujlwm ua tus neeg ua si tseem ceeb hauv polymer chemistry thiab kev siv hauv kev lag luam.
Lub sijhawm tshaj tawm: Lub Ib Hlis-09-2024