Sodium Carboxymethyl cellulose (tseem hu ua: Sodium carboxymethyl cellulose, cellulethyl cellulose,Cmc, Carboxymethyl, sell nqaij sodium, sodium ntsev ntawm caboxy metyl cellulose) yog qhov ntau tshaj plaws hauv ntiaj teb niaj hnub no hom cellulose.
CMC-NA rau luv luv, yog lub cellulose derivative nrog cov piam thaj polymerization degree ntawm 100-2000, thiab ib tug txheeb ze molecular ntawm 242.16. Dawb fibrous lossis granular hmoov. Tsis meej, tsis muaj, hygroscopic, insoluble hauv cov kuab tshuaj organic.
Cov Khoom Yooj Yim
1. Molecular qauv ntawm sodium carboxymethylcelleculose (cmc)
Nws tau ua ntej los ntawm lub teb chaws Yelemees thaum xyoo 1918, thiab nws tau siv tau nyob rau xyoo 1921 thiab tshwm nyob hauv lub ntiaj teb. Kev lag luam kev tsim khoom muaj txij li tau tiav hauv Tebchaws Europe. Lub sijhawm ntawd, nws tsuas yog cov khoom lag luam nyoos, siv raws li colloid thiab binder. Txij xyoo 1936 txog 1941, daim ntawv thov daim ntawv thov kev tshawb fawb ntawm Sodium Carboxymethyl cellulose tau tsim ua cov cuab yeej. Thaum Lub Ntiaj Teb Tsov Rog Thoob Ntiaj Teb Zaum II, Lub teb chaws Yelemees siv sodium carboxymethylculpeculose hauv cov tshuaj ntxuav synthetic. Hercules ua los sodium carboxymethylcellcellulose rau thawj zaug hauv tebchaws Asmeskas hauv xyoo 1946, uas tau lees paub tias yog cov zaub mov muaj kev nyab xeeb. Kuv lub teb chaws pib txais yuav nws hauv xyoo 1970, thiab nws tau siv dav hauv xyoo 1990. Nws yog qhov feem ntau dav siv thiab ntau tshaj plaws ntawm cellulose hauv ntiaj teb niaj hnub no.
Txheej txheem qauv: C6h7o2 (Oh) 2och2cola molecular molecular molecular molecular molecular molecular molecular molecular
Cov khoom no yog sodium ntsev ntawm cellulose carboxymethyl ether ether, anionic fiber ntau
2. Tsos ntawm sodium carboxymethyl cellulose (cmc)
Cov khoom no yog sodium ntsev ntawm cellulose carboxymethyl ether, ntom roj, yuav luag tsis muaj ntxhiab tsw qab, tsis muaj ntxhiab, hygroscopic. Nws yog ib qho yooj yim rau tawg hauv dej los ua ib qho kev daws teeb meem pob tshab colloidal, thiab tsis muaj insoluble hauv cov kuab tshuaj ethanol [1]. Cov PHC ntawm 1% kev daws teeb meem yog 6.5-8.5, thaum tus phucilage txo qis, thiab kev ua tau zoo tshaj plaws thaum ph = 7. Ruaj khov rau tshav kub, lub viscosity nce sai sai hauv qab 20 ° C, thiab hloov maj mam ntawm 45 ° C. Lub sij hawm ntev ntev saum toj 80 ° C tuaj yeem yeem denature colloid thiab cuam tshuam txo qhov viscosity thiab kev ua tau zoo. Nws yog yooj yim soluble hauv dej, thiab kev daws teeb meem yog pob tshab; Nws yog qhov ruaj khov nyob rau hauv kev daws teeb meem alkaline, tab sis nws yooj yim hydrolyzed thaum nws tau ntsib cov kua qaub, thiab nws yuav nag li nag xob yog 2-3, thiab nws kuj tseem yuav muaj cov khoom siv hlau polyvalent.
Lub hom phiaj tseem ceeb
Nws yog siv los ua cov tuab hauv kev lag luam khoom noj khoom haus, raws li cov neeg siv tshuaj hauv cov tshuaj, thiab ua cov duab los ntawm kev tiv thaiv kev ua haujlwm ntawm kev lag luam txhua hnub. Hauv kev luam ntawv thiab zas kev lag luam, nws yog siv los ua kev tiv thaiv kev tiv thaiv rau cov neeg sawv cev thiab luam tawm luam ntawv. Hauv kev lag luam petrochemical, nws tuaj yeem siv los ua ib feem ntawm cov roj rov qab cov kua dej. [2]
Kev tsis sib haum
Sodium Carboxymethylcelleculose yog incomplecellose nrog cov ntsev roj acid, thiab qee cov hlau xws li txhuas, mercury, thiab zinc. Thaum lub p tsawg dua 2, thiab thaum sib xyaw nrog 95% ethanol, nag lossis daus yuav tshwm sim.
Sodium Carboxymethyl cellulose tuaj yeem tsim co-agglomerates nrog gectines, thiab tseem tuaj yeem tsim cov tshuaj tiv thaiv zoo ib yam li cov protein tsawg.
khoom siv tes ua
CMC feem ntau yog anionic polymer compound npaj txhij los ntawm kev rov ua kom muaj cov pa qaub motustic alkali thiab monochloroacetic acid, nrog molecular hnyav ntawm 6400 (± 1 000). Lub ntsiab ntawm-cov khoom yog sodium chloride thiab sodium glycolate. CMC Belongs rau kev hloov kho cellulose ntuj hloov kho. Cov koom haum zaub mov thiab kev ua liaj ua teb ntawm United Nations (FAO) thiab Lub Koom Haum Ntiaj Teb Kev Noj Qab Haus Huv "tau hu ua cellulose".
Cov ntsuas tseem ceeb los ntsuas qhov zoo ntawm CMC yog cov qib hloov pauv (DS) thiab purity. Feem ntau, cov khoom ntawm CMC yog txawv yog tias DS txawv; Qhov siab dua qib ntawm kev hloov pauv, tus muaj zog rau solubility, thiab qhov zoo dua lub pob tshab thiab ruaj khov ntawm kev daws. Raws li cov lus tshaj tawm, cov pob tshab ntawm CMC zoo dua thaum cov qib hloov pauv yog 0.7-1.2 loj tshaj plaws thaum tus nqi py yog 6-9. Txhawm rau kom muaj qhov zoo, ntxiv rau kev xaiv ntawm tus neeg sawv cev ntawm Alkali, qee qhov kev sib raug zoo, cov dej tsis muaj txiaj ntsig, cov kev daws teeb meem thiab ntsev thiab lwm yam.
Cov xwm txheej quo
Txhawm rau daws cov ntaub ntawv tsis txaus ntseeg (cov paj rwb ua kom zoo nkauj rau hauv kuv lub teb chaws science (khib lub paj rwb), thiab taum pauv cov paj rwb los tsim CMC tiav. Tus nqi tsim khoom yog txo qis heev, uas qhib qhov tshiab ntawm cov ntaub ntawv raw rau cmc muaj ntau lawm thiab pom cov khoom siv ntau. Ntawm ib sab tes, tus nqi tsim yog txo qis, thiab ntawm qhov tod tes, CMC tab tom txhim kho ntawm kev ntsuas siab dua. Kev tshawb fawb thiab kev txhim kho ntawm CMC tsuas yog ua rau kev hloov pauv ntawm cov khoom siv tsim khoom, xws li cov qauv kev tsim khoom, xws li cov txheej txheem sib txawv ntawm cov "[3] tau tsim tsa dav dav. Ib hom tshiab hloov kho CMC nrog cov ruaj khov yog tsim tawm. Vim yog cov qib siab dua thiab hloov chaw ntau dua ntawm cov chaw muaj kev lag luam thiab cov nyom uas yuav tsum tau ua kom tau raws cov txheej txheem siab dua. Thoob ntiaj teb, no hom kev hloov kho CMC kuj tseem hu ua "Polyanionic cellulose (PAC, poly anionic cellulose)".
kev xyuas xim
Kev ruaj ntseg siab, ADI tsis tas yuav kev cai, thiab cov qauv hauv tebchaws tau raug tsim [4].
daim ntawv thov
Cov khoom no muaj cov haujlwm ntawm kev khi, thickening, ntxiv dag zog, emulsifying, dej rov qab thiab raug ncua.
Daim ntawv thov CMC hauv cov khoom noj
FAO thiab uas tau pom zoo siv kev siv cov ntshiab cmc hauv cov zaub mov. Nws tau pom zoo tom qab nruj heev kev siv roj ntsha thiab cov tshuaj lom thiab kev sim. Kev nyab xeeb nkag (ADI) ntawm International txheej txheem yog 25mg / (KGNY (KGNY- (yog li yog li 1.5 G / D ib tus neeg. Nws tau tshaj tawm tias qee tus neeg tsis muaj tshuaj lom neeg lom thaum cov pa mus txog 10 kg. CMC tsis yog tsuas yog ib qho zoo emulsification stabilizer thiab tuab nyob rau hauv cov ntawv thov zaub mov, tab sis kuj txhim kho qhov tsw zoo, thiab tuaj yeem txhim kho qhov tsw thiab muaj sijhawm ntev. Tus nqi siv nyob rau hauv kua mis kua roj, mis nyuj khov, dej khov, dej haus, thiab cov kaus poom yog li 1% rau 1.5%. CMC tseem tuaj yeem tsim cov khoom siv emulsified ruaj khov nrog vinegar, kua txiv, kua txiv, thiab cov tshuaj ntsuab, thiab 0.2% mus rau 0.5%. Tshwj xeeb, nws muaj zoo emulsifying kev ua tau zoo rau tsiaj thiab zaub roj, muaj cov kev daws teeb meem aquees, ua rau nws ua tau zoo. Vim tias nws txoj kev nyab xeeb thiab kev ntseeg tau, nws koob tshuaj tsis muaj txwv los ntawm lub teb chaws cov zaub mov tu cev adi. CMC tau tsim kho tas mus li hauv cov zaub mov teb, thiab kev tshawb fawb ntawm daim ntawv thov sodium carboxymelylcelleculose hauv cov hmoov nplej tau ua los kuj tau nqa tawm.
Kev siv CMC hauv tshuaj
Hauv kev lag luam kws tshuaj, nws tuaj yeem siv los ua cov hmoov av emulsion rau kev txhaj tshuaj, ib phau thiab zaj duab xis-ua tus neeg sawv cev rau cov ntsiav tshuaj. Qee tus neeg tau ua pov thawj tias CMC yog qhov muaj kev nyab xeeb thiab txhim khu kev qha anticancer tshuaj los ntawm kev sim tsiaj thiab tsiaj sim. Siv CMC ua cov khoom siv membrane, cov tshuaj uas tau hloov kho cov tshuaj Tsiaj qauv kev tshawb pom tau qhia tias zaj duab xis tiv thaiv kev kis tau tus kab mob thiab tsis muaj qhov sib txawv ntawm cov ntaub nyias nyias. Hais txog cov tshuaj mob taub ntswg exudation thiab ceev ceev kev kho kom zoo dua li gauze cov hnav ris tsho edema thiab mob voos. Cov yeeb yaj kiab npaj ua los ntawm polyvinyl cawv: sodium carboxymethyl cellulose ntawm ib qho kev sib piv, thiab cov nplaum zoo tshaj plaws, thiab tso tawm ob leeg nce. Cov nplaum ntawm kev npaj, lub sijhawm nyob hauv qhov kev npaj ntawm qhov ncauj thiab cov tshuaj ua tau zoo ntawm cov tshuaj hauv kev npaj yog txhua yam txhim kho. Bupivacaine yog lub zog ua kom zoo nkauj hauv zos tshuaj loog, tab sis nws qee zaum qee zaum tau ua cov kev mob plawv plawv kev phiv thaum muaj tshuaj lom. Yog li ntawd, thaum Bupivacaine tau siv dav dav siv kho mob, kev tshawb fawb ntawm kev tiv thaiv thiab kho cov tshuaj lom tau ib txwm them nyiaj ntau dua. Cov kev tshawb fawb pharic tau qhia tias tsoomfwv raws li kev tso tawm cov tshuaj uas tau tawm los nrog Bupivacain daws tuaj yeem txo cov kev mob tshwm sim tau txo qis ntawm cov tshuaj. Hauv Tepk phais, kev siv cov qis-siab tetracaine thiab cov tshuaj tsis sib xws ua ke nrog CMC tuaj yeem daws qhov mob tom ntej. Kev tiv thaiv ntawm postoperative peritoneal adhesions yog ib qho teeb meem txhawj xeeb tshaj plaws hauv kev phais mob. Cov kev tshawb fawb pom tau tias CMC yog qhov zoo dua li sodium Hyaluronate hauv kev txo qis kev tshwm sim los tiv thaiv qhov tshwm sim ntawm peritoneeal adhesions. CMC yog siv nyob rau hauv Catheter hepatic arterial infusion ntawm kev kho mob qog ntshav, uas tuaj yeem txhim kho lub zog mob qog noj ntshav, thiab txhim kho cov nyhuv tiv thaiv mob qog. Hauv cov tshuaj tsiaj, CMC tseem muaj ntau yam kev siv. Nws tau tshaj tawm [5] tias IntraperusWendoneal Instillation ntawm 1% CMC tov rau kev tiv thaiv DYSTOCIA thiab plab adhesions tom qab kev phais mob hauv tsiaj txhu.
CMC nyob rau hauv lwm yam kev siv
Hauv cov tshuaj ntxuav tes, cmc tuaj yeem siv los ua cov tshuaj tiv thaiv av rau hydthetic fiber ntau, uas yog zoo dua li carboxymethyl fiber ntau.
CMC tuaj yeem siv los tiv thaiv roj cov roj raws li cov av nkos stabilizer thiab dej tswjfwm sawv cev rau cov roj drilling. Qhov ntau npaum li cas rau txhua cov roj zoo yog 2.3t rau qhov dej ntiav thiab 5.6t rau cov qhov dej tob;
Hauv kev lag luam textile, nws yog siv los ua tus sizing tus neeg sawv cev, tuab luam tawm luam ntawv thiab tawg tshuab luam ntawv thiab stiffening xov. Thaum siv los ua tus sawv cev sizing, nws tuaj yeem txhim kho solubility thiab viscosity, thiab yog yooj yim kom desization; Raws li tus neeg sawv cev stiffening, nws cov kev noj haus yog saum toj 95%; Thaum siv los ua tus sawv cev sizing, lub zog thiab hloov kho kom yooj yim ntawm cov zaj duab xis loj tau txhim kho; Nrog repeperated silk fibroin lub composite membrane muaj cov roj hmab rau immobilase yog agidix, thiab cov piam thaj ua kom zoo dua qub thiab muaj kev ruaj khov. Cov kev tshawb fawb pom tau tias thaum Silica daws tau npaj nrog kev sib haum xeeb ntawm kev ua tiav ntawm 1%, w / v), cov phaj nyias txheej yog qhov zoo tshaj plaws. Nyob rau tib lub sijhawm, cov phaj nyias txheej uas muaj cov xwm txheej tsim nyog tau muaj cov txheej txheem tsim nyog, haum rau ntau cov qauv txheej txheem, ua haujlwm yooj yim. CMC muaj cov nplaum rau feem ntau cov fibers thiab tuaj yeem txhim kho txoj kev sib raug zoo ntawm cov fibers. Qhov ruaj khov ntawm nws viscosity tuaj yeem ua kom cov kev sib txuam ntawm sizing, yog li kev txhim kho kev ua tau zoo ntawm nws. Nws kuj tseem tuaj yeem siv los ua tus sawv cev ua tiav rau cov ntawv nyeem, tshwj xeeb tshaj yog ua kom tawg ruaj khov, uas nqa cov kev hloov pauv ruaj khov rau cov ntaub.
CMC tuaj yeem siv los ua cov neeg sawv cev tawm tsam, emulsifier, dispersant, leveling tus neeg sawv cev, thiab cov nplaum rau txheej txheej. Nws tuaj yeem ua cov ntsiab lus zoo ntawm cov txheej txheej finating ferly faib nyob rau hauv cov kuab tshuaj, kom cov txheej tsis delaminate tau ntev. Nws tseem dav siv nyob rau hauv cov xim tha xim. Cov.
Thaum CMC yog siv los ua cov flocculant, nws yog qhov ua tau zoo dua li sodium gluconate hauv tshem tawm calcium. Thaum siv los ua kev sib pauv cated, nws cov peev xwm sib pauv tau tuaj yeem ncav cuag 1.6 ml / g.
CMC yog siv los ua ib daim ntawv Sizing cov neeg sawv cev hauv daim ntawv kev lag luam, zoo li cov roj ua tsis tau zoo, hauv kev nqus roj thiab dej tsis kam.
CMC yog siv los ua cov tshuaj pleev ib ce thiab ua cov ntaub qhwv hauv cov tshuaj txhuam hniav, thiab nws cov koob tshuaj yog li 5%.
CMC tuaj yeem siv raws li flocculant, chelating tus neeg sawv cev, thickener, tawv nqaij, tawv ncauj, duab puab, thiab qhib kev ua lag luam tas li, thiab kev cia siab ua lag luam yog qhov dav heev.
Cov kev ceev faj
(1) Qhov kev sib raug zoo ntawm cov khoom no nrog cov acid muaj zog, xws li hlau, zinc, mercury, nyiaj, thiab lwm yam) yog contraindicated.
(2) Cov khoom pub rau cov khoom lag luam no yog 0-25mg / KGA.
Cov lus qhia
Mix CMC ncaj qha nrog dej los ua cov kua nplaum dhau los rau kev siv tom ntej. Thaum teeb tsa CMC cov kua nplaum, ua ntej ntxiv cov dej huv rau hauv lub tank huv si, thiab cov ntxeem tau sib xyaw nrog dej, cmc tuaj yeem ua ke. Thaum dissolving cmc, vim li cas nws yuav tsum tau tusyees sprinkled thiab nplawm cov nyiaj, thiab kom muaj cov dej sib txawv thaum cov dej sib cais ntawm cmc. Lub sijhawm rau stirring tsis zoo ib yam li lub sijhawm rau CMC kom yaj tag. Lawv yog ob lub ntsiab lus. Feem ntau hais lus, lub sijhawm rau stirring yog luv dua li lub sijhawm rau CMC kom yaj tag. Lub sijhawm xav tau rau ob yog nyob ntawm qhov xwm txheej tshwj xeeb.
Lub hauv paus rau kev txiav txim lub sijhawm stirring yog: thaum lubCmcyog uniformly dispersed nyob rau hauv cov dej thiab tsis muaj qhov tseeb lumps, lub stirring tuaj yeem nres, tso cai rau cov dej cmc thiab dej kom nkag mus rau hauv lub xeev sawv.
Lub hauv paus rau kev txiav txim siab lub sijhawm uas xav tau rau CMC kom tag ua kom tiav yog raws li hauv qab no:
(1) CMC thiab cov dej ua tiav tag nrho, thiab tsis muaj kev sib cais ua kua ntawm ob;
(2) Cov tshuaj sib xyaw yog nyob rau hauv lub xeev tsis zoo, thiab saum npoo yog tiaj thiab du;
(3) Cov xim ntawm cov tshuaj sib tov yog ze rau cov xim tsis muaj kob thiab pob tshab, thiab tsis muaj cov khoom sib pauv hauv cov khoom noj. Txij lub sijhawm thaum cmc tau muab tso rau hauv lub tank batching thiab sib xyaw nrog dej rau lub sijhawm thaum CMC tau tag nrho cov sij hawm ntawm 10 thiab 20 teev.
Lub sijhawm Post: Plaub-26-2024