Sodium Carboxymethyl cellulose (CMC) yog carboxymethylated derivetative ntawm cellulose ntawm cov hniav ntawm cov hniav ntawm cov pos hniav. CMC feem ntau yog ib qho anionic polymer compound tau los ntawm reacting ntuj cellulose nrog caustic alkali thiab monochloroacetic acid. Qhov hnyav molecular ntawm cov compound li ntawm kaum ntawm lab lab mus rau ntau lab.
App Cov khoom】 Hmoov Dawb, tsw qab, soluble nyob rau hauv cov kev daws teeb meem siab, Insoluble hauv ethanol thiab lwm yam kuab tshuaj.
【Ntawv Thov】 Nws muaj cov haujlwm raug ncua thiab emulsification, cohesion zoo thiab yog lub npe hu ua "Industrial Moos Glutamate", uas yog siv dav.
Kev npaj ntawm CMC
Raws li txawv ntawm thaj tsam nruab nrab, kev lag luam nruab nrab ntawm CMC tuaj yeem muab faib ua ob pawg: txheej txheem dej raws cov dej thiab cov kuab-raws li kev coj ua. Tus txheej txheem ntawm kev siv dej raws li cov tshuaj tiv thaiv nruab nrab yog hu ua cov qauv dej-borne, uas yog siv los tsim cov alkaline nruab nrab thiab cov qib qis cmc; Cov txheej txheem ntawm kev siv cov organic huab cua raws li cov tshuaj tiv thaiv nruab nrab yog hu ua cov qauv kev daws teeb meem, uas yog qhov tsim nyog rau kev tsim cov nruab nrab thiab qib CMC. Ob qho ntawm cov kev cuam tshuam no yog nqa tawm hauv lub Kneader, uas yog rau cov txheej txheem kneading thiab yog txoj kev tseem ceeb rau kev tsim CMC tam sim no.
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Dej-raws li txoj kev
Cov qauv dej-Borne yog txheej txheem kev lag luam ua ntej, uas yog los ua rau alkali cellulose nrog ib tug neeg sawv cev ntawm lub alkali thiab dej. Thaum lub sij hawm ua alkalization thiab etherification txheej txheem, tsis muaj qhov nruab nrab hauv nruab nrab hauv lub system. Cov cuab yeej siv uas yuav tsum muaj cov txheej txheem-borne-borne yog qhov yooj yim kuj yooj yim, nrog tsawg peev thiab tus nqi qis. Qhov tsis zoo yog tias muaj qhov tsis muaj peev xwm ntawm cov kua dej hauv nruab nrab, thiab cov tshuaj tiv thaiv kub nce ntxiv, ua kom muaj kev nrawm nrawm thiab cov khoom lag luam tsis zoo. Cov qauv no yog siv los npaj nruab nrab thiab qis-qib cmc cov khoom, xws li tshuaj ntxuav, textile sizing cov neeg sawv cev, thiab lwm yam.
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Hnyav txoj kev
Cov kuab tshuaj ntawm cov kuab tshuaj tseem muaj lub npe hu ua cov txheej txheem organic. Nws lub ntsiab tseem ceeb yog cov alkalization thiab etherification cov tshuaj tiv thaiv tau ua raws li cov xwm txheej uas organic folvent yog siv los ua cov tshuaj tiv thaiv nruab nrab (diluent). Raws li cov tshuaj tiv thaiv diluent, nws tau muab faib ua kneading txoj kev thiab slurry txoj kev. Txoj kev qhia daws yog tib yam li cov txheej txheem ntawm cov dej ntawm cov dej, thiab nws kuj suav nruab nrab ntawm ob theem no txawv. Cov qauv hnyav tshem tawm cov txheej txheem hauv cov txheej txheem dej, xws li so thiab lwm yam thiab lwm yam thiab txhua yam yog txhua tus nqa tawm hauv lub ntsej muag. Qhov tsis zoo yog qhov ntsuas kub yog qhov tsis tshua tau zoo, qhov yuav tsum tau ua haujlwm thiab tus nqi yog qhov siab. Ntawm chav kawm, rau kev tsim cov khoom siv sib txawv, nws yog qhov tsim nyog los tswj cov kab ke ntsuas kub, pub cov khoom lag luam, yog li ntawd cov khoom lag luam muaj peev xwm npaj tau. Nws cov txheej txheem ntws tawm tau qhia hauv daim duab 2.
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Cov xwm txheej ntawm kev npaj ntawm sodium carboxymethyl cellulose los ntawm kev ua liaj ua teb
Cov qoob loo ntawm cov khoom lag luam muaj cov yam ntxwv ntawm ntau yam thiab yooj yim, thiab tuaj yeem siv dav siv ua cov ntaub ntawv raw rau kev npaj ntawm CMC. Tam sim no CMC cov khoom siv raw ntau lawm, suav nrog cov khoom siv ua kom ntev dua, hauv qab cov ntaub ntawv pheej yig dua, hauv cov khoom siv hluav taws xob tsis ntev, nrog rau kev npaj cov remer thiab ntau ntxiv rau kev npaj cov khoom nyoos rau kev npaj ua kom pom tseeb.
Chaw saib xyuas
Sodium Carboxymethyl cellulose tuaj yeem siv ua emulsifier, tawv, cov khoom siv dej, nws tseem niaj hnub tsim cov ntawv thov cov ntawv thov tas li. Tam sim no, nyob rau hauv cov dav dav ntawm lub tswv yim ntawm ntsuab tshuaj lom neeg tsom xam thiab yooj yim-rau-txais cov ntaub ntawv muaj kuab lom thiab cov qauv tshiab rau CMC ua kom huv. Raws li lub teb chaws nrog cov peev txheej loj, kuv lub tebchaws nyob hauv cov txheej txheem npaj roj, tab sis kuj muaj cov khoom siv raw, tab sis kuj tseem muaj cov khoom siv roj ntsha los ntawm ntau qhov chaw ntawm cov khoom siv biomass thiab sib txawv ntawm cov khoom siv. Tseem tshuav qhov tsis txaus ntseeg ntawm kev siv cov ntaub ntawv biomass, yog li cov kev ua tiav zoo ntxiv hauv cov chaw no yuav tsum tau ua cov kev tshawb fawb ntau yam
Lub Sijhawm Post: NOV-07-2022