Sodium carboxymethylcellulose (NaCMC) yog ntau yam thiab ntau yam cellulose derivative uas pom daim ntawv thov hauv ntau qhov kev lag luam vim nws cov khoom tshwj xeeb. Cov tshuaj no yog muab los ntawm cellulose, ib tug natural polymer pom nyob rau hauv cov nroj tsuag cell phab ntsa. Sodium carboxymethyl cellulose yog synthesized los ntawm reacting cellulose nrog sodium monochloroacetate thiab neutralizing nws. Cov khoom tsim tau muaj ntau yam khoom tsim nyog, ua rau lawv muaj txiaj ntsig hauv cov khoom noj thiab dej haus, tshuaj, tshuaj pleev ib ce, textiles thiab lwm yam.
Qauv thiab muaj pes tsawg leeg:
Sodium carboxymethyl cellulose yog cov dej-soluble polymer nrog cov qauv linear. Cov pob txha cellulose tau hloov kho los ntawm pawg carboxymethyl qhia los ntawm etherification. Qhov degree ntawm kev hloov pauv (DS) yog hais txog qhov nruab nrab ntawm cov carboxymethyl pawg ib chav tsev anhydroglucose hauv cellulose saw. DS cuam tshuam rau lub cev thiab tshuaj lom neeg ntawm NaCMC.
Kev tsim khoom:
Kev tsim cov sodium carboxymethylcellulose muaj ob peb kauj ruam. Cellulose feem ntau yog muab los ntawm cov ntaub ntoo los yog paj rwb thiab yog pretreated kom tshem tawm impurities. Nws ces reacts nrog sodium monochloroacetate nyob rau hauv alkaline tej yam kev mob los qhia cov carboxymethyl pawg. Cov khoom ua tau yog neutralized kom tau txais sodium ntsev daim ntawv ntawm carboxymethylcellulose.
Lub cev thiab tshuaj muaj zog:
Solubility: NaCMC yog soluble hauv dej, tsim cov kua ntshiab thiab khov. Qhov no solubility yog ib tug yam ntxwv tseem ceeb rau nws dav siv nyob rau hauv ntau yam lag luam.
Viscosity: Lub viscosity ntawm sodium carboxymethylcellulose tov tuaj yeem hloov kho los ntawm kev tswj cov qib ntawm kev hloov pauv thiab kev xav. Cov cuab yeej no ua rau nws haum rau cov ntawv thov uas xav tau thickening lossis gelling.
Kev ruaj ntseg: NaCMC tseem nyob ruaj khov tshaj pH ntau yam, uas txhim kho nws cov versatility nyob rau hauv ntau formulations.
Zaj duab xis-forming: Nws muaj cov khoom ua yeeb yaj kiab thiab tuaj yeem siv los tsim cov yeeb yaj kiab thiab txheej txheej hauv ntau yam kev siv.
daim ntawv thov:
Khoom noj khoom haus thiab dej haus kev lag luam:
Thickening tus neeg sawv cev:NaCMC feem ntau yog siv los ua tus neeg sawv cev thickening hauv cov khoom noj xws li kua ntses, hnav khaub ncaws thiab dej haus.
Stabilizer: Nws stabilizes emulsions thiab suspensions nyob rau hauv cov khoom xws li ice cream thiab zaub xam lav hnav khaub ncaws.
Kev ntxhib los mos: NaCMC muab cov kev xav zoo nkauj rau cov khoom noj, txhim kho lawv cov khoom zoo.tshuaj:
Binders: sivraws li binders nyob rau hauv cov ntsiav tshuaj formulations los xyuas kom meej lub structural kev ncaj ncees ntawm cov ntsiav tshuaj.
Viscosity modifier: kho qhov viskev npaj ua kua los pab xa tshuaj.
Tshuaj pleev ib ce thiab saib xyuas tus kheej:
Stabilizers: Siv kom ruaj khov emulsions hauv cov tshuaj pleev thiab tshuaj pleev.
Thickeners: Ua kom cov viscosity ntawm cov tshuaj zawv plaub hau, tshuaj txhuam hniav thiab lwm yam khoom siv tu tus kheej.
textile:
Sizing tus neeg saib xyuas: siv rau textile sizing los txhim kho lub zog thiab smoothness ntawm fibers thaum lub sij hawm weaving txheej txheem.
Printing paste: Ua cov thickener thiab rheology modifier hauv textile luam ntawv paste.
Kev lag luam roj thiab roj:
Drilling kua: NaCMC yogsiv los ua tackifier hauv cov kua dej los txhim kho nws cov khoom rheological.
Kev lag luam ntawv:
Txheej tus neeg sawv cev: siv rau cov ntawv txheej los txhim kho cov khoom nto.
Lwm yam kev lag luam:
Kev Kho Dej: Siv hauv cov txheej txheem kho dej vim nws cov khoom flocculation.
Detergent: Ua raws li lub stabilizer nyob rau hauv ib co detergent formulations.
Kev nyab xeeb thiab kev cai:
Sodium carboxymethylcellulose feem ntau lees paub tias muaj kev nyab xeeb (GRAS) rau kev siv khoom noj thiab tshuaj. Nws ua raws li cov qauv kev cai thiab cov kev qhia tshwj xeeb uas tau teev tseg los ntawm ntau lub koom haum, suav nrog US Food and Drug Administration (FDA) thiab European Food Safety Authority (EFSA).
Sodium carboxymethyl cellulose yog cov khoom siv polymer nrog ntau yam kev siv hauv ntau yam lag luam. Nws tshwj xeeb ua ke ntawm solubility, viscosity tswj, stability thiab zaj duab xis-forming zog ua rau nws muaj nuj nqis muaj nyob rau hauv ntau yam formulations. Raws li kev lag luam txuas ntxiv mus ntxiv, qhov kev thov rau sodium carboxymethylcellulose zoo li yuav txuas ntxiv vim nws qhov kev ua tau zoo thiab pab txhawb rau kev txhim kho cov khoom lag luam hauv ntau daim ntawv thov.
Post lub sij hawm: Dec-29-2023