Cellulose hais tias muaj neeg hais ua si ib lub luag haujlwm tseem ceeb hauv kev ua haujlwm, tshwj xeeb tshaj yog hauv cov ntawv thov pob zeb. Cov tshuaj ntxiv no txhim kho cov kev ua tau zoo thiab cov yam ntxwv ntawm pob zeb ua, muab cov txiaj ntsig xws li kev txhim kho cov haujlwm ua haujlwm, kom dej rov qab thiab cov tshuaj nplaum. Ntawm cov ntau hom ntawm cov cellulose muaj kev hais ua tus neeg muaj cai, qee cov feem ntau siv hauv cov qauv ua qauv.
1.hydroxyethylmethylcelleculose (HEMC):
Hydroxyether methylulose, feem ntau hu ua Hemsc, yog cov dej-soluble cellulose siv dav hauv kev tsim kho. Nws yog tau los ntawm kev hloov kho tshuaj lom neeg ntawm cellulose. HEMC paub txog nws cov khoom siv dej zoo, ua rau nws ua tau zoo ntxiv hauv pob zeb sib xyaw. Nws pab tiv thaiv kom qhuav ua kom qhuav ntawm cov pob zeb ua, kom ua haujlwm zoo dua thiab ua tiav.
Ib qho ntxiv, hemc ua raws li cov tuab dua, nce viscosity ntawm pob zeb ua ke. Cov cuab yeej no yog tau txais txiaj ntsig tshwj xeeb nyob rau hauv cov ntawv thov ntsug, xws li plastering thiab rendering, uas muaj kev txhim kho sagging thiab txo sagging yog yuav tsum tau.
2.hdroxyprophlymethylcelleculose (HPMC):
HydroxyPropyyl methylcellueculose (HPMC) yog lwm qhov dav siv cellulose ether hauv pob zeb. Zoo li HEMC, HPMC yog dej-soluble polymer muab tau los ntawm cellulose. Nws muaj ntau cov txiaj ntsig xws li kev ua kom muaj dej ua ke, kev ua haujlwm thiab cov nplaum.
Hauv cov ntawv thov pob zeb, HPMC ua raws li kev hloov kho rheology, cuam tshuam kev ntws thiab deformation yam ntxwv ntawm cov sib tov. Qhov no yog tshwj xeeb tshaj yog muaj txiaj ntsig rau kev coj tus kheej thiab cov tsho nyias dawb. Tsis tas li ntawd, HPMC pab txhim kho cov nplaum ntawm cov sib tov, yog li nce lub zog thiab lub zog ua kom tau kho tau.
3. Methyl Cellulose (MC):
Methylcellulose (MC) yog lub cellulose ether tau los ntawm cov xov tooj ntawm ntuj los ntawm cov txheej txheem tshuaj lom neeg. Nws yog tus cwj pwm los ntawm cov dej solubility thiab ua yeeb yaj kiab ua yeeb yam. Hauv cov ntawv thov pob zeb, MC feem ntau siv los ua cov tuab thiab dej tuav tus neeg sawv cev.
MC zoo tiv thaiv cais thiab los ntshav hauv pob zeb sib xyaw thiab ua kom muaj kev faib tawm. Nws zaj duab xis tsim cov khoom tseem txhim kho cov nplaum rau ntau yam ntawm substrates. Ib qho ntxiv, MC tau paub rau nws cov kev sib raug zoo nrog lwm cov khoom siv tsim kho, ua rau nws muaj ntau yam ntxiv hauv cov pob zeb.
4. Carboxymethylulose (CMC):
Carboxymetylcelleculose (CMC) yog lub cellulose ether nrog carboxymethyl pab pawg txuas rau lub cellulose caj qaum. Thaum CMC tsis yog feem ntau siv hauv kev ua raws li lwm cov cellulose muaj kev muaj neeg muaj kev hais txog cellulose, nws tuaj yeem pom cov ntawv thov hauv cov xwm txheej tshwj xeeb.
Hauv cov pob zeb ua, cmc yog siv rau nws cov dej khaws cia thiab cov khoom siv tuab. Nws pab txhim kho cohesion ntawm cov sib tov thiab txo cov dej noo ploj thaum lub sijhawm teeb tsa. CMC feem ntau siv nyob rau hauv cov qauv sib luag tshwj xeeb, xws li cov siv hauv kev siv cov ntawv thov refactory.
5.ethylhydroxyethylcellulose (EHEC):
Ethyl hydrotyl cellulose, hu ua EHEC, yog lub cellulose ether nrog kev sib xyaw ntawm ethyl thiab hydroxyethyl hloov chaw. Nws yog tus nqi rau nws cov versatility nyob rau ntau yam kev siv, suav nrog kev tsim kho.
Hauv kev ua vaj tse, EHEC ua raws li cov neeg saib xyuas dej-khaws cia, ua kom cov dej sib xyaw uas muaj kev siv tau ntev dua. Nws kuj tseem yuav pab txhim kho txoj hlua khi rau lub zog thiab txo qhov yuav muaj kev tawg. EHEC muaj feem ntau siv nyob rau hauv cov nplais nplaum, cov khoom lag luam mortars thiab lwm yam khoom noj kom xis.
Cellulose hais tias muaj neeg hais ua haujlwm ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov kev ua tau zoo ntawm kev ua haujlwm hauv kev siv. Feem ntau siv cov cellulose muaj kev hais tsis yog neeg muaj kev pab, HPMC, MC, CMC thiab EHESTION, tso dej ua ke thiab tag nrho cov khoom ua haujlwm ruaj khov. Nkag siab txog cov khoom tshwj xeeb ntawm txhua lub cellulose ether tuaj yeem siv tau zoo nyob rau hauv cov qauv sib txawv kom tau raws li cov kev xav tau ntawm kev tsim kho kev tsim kho.
Lub Sijhawm Post: Feb-19-2025