1. Qhia luv luv ntawm Carboxymethyl Cellulose
Lub npe Askiv: Carboxyl methyl Cellulose
Lub npe: CMC
Cov mis mos molecular yog variable: [C6H7O2(OH)2CH2COONa]n
Cov tsos mob: dawb los yog lub teeb daj fibrous granular hmoov.
Dej solubility: yooj yim soluble nyob rau hauv dej, tsim ib pob tshab viscous colloid, thiab cov tshuaj yog nruab nrab los yog me ntsis alkaline.
Nta: High molecular compound ntawm nto active colloid, tsw, tasteless thiab non-toxic.
Ntuj cellulose yog dav faib nyob rau hauv cov xwm thiab yog cov feem ntau polysaccharide. Tab sis hauv kev tsim khoom, cellulose feem ntau muaj nyob rau hauv daim ntawv ntawm sodium carboxymethyl cellulose, yog li lub npe tag nrho yuav tsum yog sodium carboxymethyl cellulose, los yog CMC-Na. Siv dav hauv kev lag luam, kev tsim kho, tshuaj, khoom noj khoom haus, textile, ceramics thiab lwm yam.
2. Carboxymethyl cellulose technology
Kev hloov kho thev naus laus zis ntawm cellulose suav nrog: etherification thiab esterification.
Kev hloov pauv ntawm carboxymethyl cellulose: carboxymethylation cov tshuaj tiv thaiv hauv etherification technology, cellulose yog carboxymethylated kom tau carboxymethyl cellulose, hu ua CMC.
Kev ua haujlwm ntawm carboxymethyl cellulose aqueous tov: thickening, film forming, bonding, water retention, colloid protection, emulsification and suspension.
3. Cov tshuaj tiv thaiv ntawm carboxymethyl cellulose
Cellulose alkalization cov tshuaj tiv thaiv:
[C6H7O2(OH) 3]n + nNaOH →[C6H7O2(OH) 2ONa]n + nH2O
Cov tshuaj tiv thaiv etherification ntawm monochloroacetic acid tom qab alkali cellulose:
[C6H7O2(OH) 2ONa]n + nClCH2COONa →[C6H7O2(OH) 2OCH2COONa]n + nNaC
Yog li: cov tshuaj formula rau kev tsim carboxymethyl cellulose yog: Cell-O-CH2-COONa NaCMC
Sodium carboxymethyl cellulose(NaCMC lossis CMC luv luv) yog cov dej-soluble cellulose ether uas tuaj yeem ua rau cov viscosity ntawm feem ntau siv aqueous tov formulations txawv ntawm ob peb cP mus rau ntau txhiab cP.
4. Khoom yam ntxwv ntawm carboxymethyl cellulose
1. Cia ntawm CMC aqueous tov: Nws yog ruaj khov nyob rau hauv qis kub los yog hnub ci, tab sis cov acidity thiab alkalinity ntawm cov tshuaj yuav hloov vim qhov kub thiab txias. Nyob rau hauv kev cuam tshuam ntawm ultraviolet rays los yog cov kab mob, cov viscosity ntawm cov tshuaj yuav txo los yog txawm ua corrupted. Yog tias yuav tsum tau khaws cia rau lub sijhawm ntev, yuav tsum tau ntxiv cov khoom khaws cia zoo.
2. Txoj kev npaj ntawm CMC aqueous tov: ua kom cov khoom sib xyaw ua ke ntub dej ua ntej, uas tuaj yeem ua rau kom muaj kev sib cais ntau.
3. CMC yog hygroscopic thiab yuav tsum tau tiv thaiv los ntawm ya raws thaum khaws cia.
4. Heavy hlau ntsev xws li zinc, tooj liab, txhuas, txhuas, nyiaj, hlau, tin, thiab chromium tuaj yeem ua rau CMC los nag.
5. Cov dej nag tshwm sim hauv cov kua dej hauv qab PH2.5, uas tuaj yeem rov qab tau tom qab nruab nrab los ntawm kev ntxiv alkali.
6. Txawm hais tias cov ntsev xws li calcium, magnesium thiab lub rooj ntsev tsis muaj nag lossis daus ntawm CMC, lawv yuav txo cov viscosity ntawm cov tshuaj.
7. CMC yog sib xws nrog lwm cov dej-soluble glues, softeners thiab resins.
8. Vim muaj kev sib txawv, cov tsos ntawm CMC tuaj yeem ua tau zoo hmoov, coarse grain los yog fibrous, uas tsis muaj dab tsi ua rau lub cev thiab tshuaj lom neeg.
9. Txoj kev siv CMC hmoov yog yooj yim. Nws tuaj yeem raug ntxiv ncaj qha thiab yaj hauv dej txias lossis dej sov ntawm 40-50 ° C.
5. Kev hloov pauv thiab solubility ntawm carboxymethyl cellulose
Qib ntawm kev hloov pauv yog hais txog qhov nruab nrab ntawm cov sodium carboxymethyl pawg txuas rau txhua chav cellulose; tus nqi siab tshaj plaws ntawm kev hloov pauv yog 3, tab sis qhov tseem ceeb tshaj plaws hauv kev lag luam yog NaCMC nrog rau qib kev hloov pauv ntawm 0.5 txog 1.2. Cov khoom ntawm NaCMC nrog rau qib kev hloov pauv ntawm 0.2-0.3 yog qhov sib txawv ntawm NaCMC nrog rau qib kev hloov pauv ntawm 0.7-0.8. Cov qub tsuas yog ib nrab soluble hauv pH 7 dej, tab sis tom kawg yog soluble tag nrho. Qhov sib txawv yog muaj tseeb nyob rau hauv alkaline tej yam kev mob.
6. Polymerization degree thiab viscosity ntawm carboxymethyl cellulose
Polymerization degree: hais txog qhov ntev ntawm cov saw cellulose, uas txiav txim siab qhov viscosity. Qhov ntev ntawm cov saw cellulose, qhov viscosity ntau dua, thiab yog li cov tshuaj NaCMC.
Viscosity: NaCMC cov tshuaj yog cov kua uas tsis yog-Newtonian, thiab nws cov viscosity pom tseeb txo qis thaum lub zog shear nce. Tom qab stirring tau nres, lub viscosity nce proportionally kom txog thaum nws tseem ruaj khov. Ntawd yog, cov tshuaj yog thixotropic.
7. Daim ntawv thov ntau ntawm carboxymethyl cellulose
1. Kev tsim kho thiab kev lag luam ceramic
(1) Architectural coatings: zoo dispersion, uniform txheej faib; tsis muaj txheej txheej, zoo stability; zoo thickening nyhuv, adjustable txheej viscosity.
(2) Ceramic kev lag luam: siv los ua cov ntaub qhwv dawb los txhim kho cov yas ntawm cov av nplaum; ruaj khov glaze.
2. Kev ntxhua khaub ncaws, tshuaj pleev ib ce, luam yeeb, textile printing thiab dyeing industries
(1) Ntxuav: CMC yog ntxiv rau cov tshuaj ntxuav tes kom tiv thaiv tau cov av ntxuav los ntawm kev rov tso rau ntawm cov ntaub.
(2) Tshuaj pleev ib ce: thickening, dispersing, suspending, stabilizing, thiab lwm yam. Nws yog qhov zoo los muab kev ua si tag nrho rau ntau yam khoom ntawm cov tshuaj pleev ib ce.
(3) Tobacco: CMC yog siv rau kev sib txuas ntawm cov ntawv luam yeeb, uas tuaj yeem siv cov chips zoo thiab txo cov nqi ntawm cov nplooj ntawv luam yeeb.
(4) Textile: Raws li tus neeg sawv cev tiav rau cov ntaub, CMC tuaj yeem txo cov xov paj hla thiab xaus kev tawg ntawm kev kub ceev looms.
(5) Kev luam ntawv thiab dyeing: Nws yog siv rau hauv kev luam ntawv muab tshuaj txhuam, uas tuaj yeem txhim kho cov dej hydrophilic thiab nkag mus rau cov xim dyes, ua rau dyeing uniform thiab txo cov xim sib txawv.
3. yoov tshaj cum thiab vuam pas nrig kev lag luam
(1) Cov yoov tshaj cum: CMC yog siv rau hauv cov yoov tshaj cum los txhim kho cov yoov tshaj cum tawv thiab ua rau lawv tsis tshua tawg thiab tawg.
(2) Electrode: CMC yog siv los ua tus neeg sawv cev glaze los ua cov txheej txheem ceramic zoo sib txuas thiab tsim, nrog kev txhuam zoo dua, thiab nws kuj muaj qhov kub thiab txias.
4. Kev lag luam tshuaj txhuam hniav
(1) CMC muaj kev sib raug zoo nrog ntau yam ntaub ntawv raw hauv tshuaj txhuam hniav;
(2) Cov tshuaj nplaum yog muag heev, tsis cais dej, tsis tev tawm, tsis thicken, thiab muaj nplua nuj ua npuas ncauj;
(3) Kev ruaj ntseg zoo thiab tsim nyog sib xws, uas tuaj yeem muab cov tshuaj txhuam hniav zoo, tuav thiab nyiam saj tshwj xeeb;
(4) Resistant rau kub hloov, moisturizing thiab fragrance-kho.
(5) Me me shearing thiab tailing nyob rau hauv cov kaus poom.
5. Kev lag luam zaub mov
(1) Acid dej haus: Raws li ib tug stabilizer, piv txwv li, los tiv thaiv los nag thiab stratification ntawm cov protein nyob rau hauv yogurt vim aggregation; saj zoo dua tom qab yaj hauv dej; zoo hloov uniformity.
(2) Cov dej khov nab kuab: Ua dej, rog, protein, thiab lwm yam, tsim ib qho sib txawv, sib cais thiab ruaj khov sib xyaw kom tsis txhob muaj dej khov.
(3) Lub khob cij thiab pastry: CMC tuaj yeem tswj cov viscosity ntawm cov batter, txhim khu cov dej tuav thiab txee lub neej ntawm cov khoom.
(4) Instant noodles: nce lub toughness thiab ua noj ua haus tsis kam ntawm noodles; nws muaj zoo formability nyob rau hauv biscuits thiab pancakes, thiab lub ncuav mog qab zib nto yog du thiab tsis yooj yim rau tawg.
(5) Instant paste: raws li cov pos hniav puag.
(6) CMC yog physiologically inert thiab tsis muaj calorific nqi. Yog li ntawd, cov khoom noj uas muaj calorie tsawg tuaj yeem tsim tau.
6. Ntawv kev lag luam
CMC yog siv rau cov ntawv sizing, uas ua rau daim ntawv muaj qhov siab ntom ntom ntom, zoo nyob rau hauv cov neeg nkag mus thiab sau ntawv. Nyob rau hauv cov txheej txheem ntawm daim ntawv colouring, nws pab tswj cov rollability ntawm cov xim muab tshuaj txhuam; nws tuaj yeem txhim kho lub xeev stickiness ntawm fibers hauv daim ntawv, yog li txhim kho lub zog thiab folding tsis kam ntawm daim ntawv.
7. Petroleum kev lag luam
CMC yog siv nyob rau hauv cov roj thiab roj drilling, zoo khawb thiab lwm yam dej num.
8. Lwm tus
Adhesives rau khau, kaus mom, xaum, thiab lwm yam., polishes thiab colorants rau tawv, stabilizers rau foam fire extinguishers, thiab lwm yam.
Post lub sij hawm: Jan-04-2023