Neeg muaj neeg ua haujlwmYog dej-soluble polymers muab tau los ntawm cellulose, cov polymer ntau tshaj plaws hauv xwm. Rau ntau tshaj 60 xyoo, cov khoom lag luam ntau no tau ua lub luag haujlwm tseem ceeb hauv cov neeg tsim khoom, los ntawm cov khoom siv tsim khoom, khoom siv thiab cov xim pleev xim rau cov zaub mov, tshuaj pleev ib ce thiab cov tshuaj pleev ib ce.
Rau cov khoom siv, cellulose hais kom ua raws li cov tuab, khi, zaj duab xis tsim thiab cov chaw ua dej ceev ceev. Lawv kuj ua haujlwm tsis pub muaj kev pab, surfactants, roj nplua, tiv thaiv kev tiv thaiv thiab emulsifers. Tsis tas li ntawd, cov kev daws teeb meem aqueous ntawm qee cov neeg ua haujlwm cellulose thermally gel, ib qho cuab yeej tshwj xeeb uas ua lub luag haujlwm tseem ceeb hauv kev xav tsis thoob
Ntau yam kev siv. Qhov no muaj txiaj ntsig sib txuam ntawm cov khoom tsis pom nyob hauv lwm yam dej-soluble polymer.
Qhov tseeb tias ntau yam muaj txiaj ntsig yog ib txhij tam sim no thiab feem ntau ua hauv kev ua ke tuaj yeem yog tus kos npe kev lag luam kom zoo dua. Nyob rau hauv ntau daim ntawv thov, ob, peb lossis ntau dua cov khoom xyaw yuav tau ua tib txoj haujlwm ua los ntawm ib qho khoom siv ether ether ether. Tsis tas li ntawd, cellulose muaj kev hais ua yog muaj effecient, feem ntau
Yielding qhov kev ua tau zoo ntawm kev sib tw qis dua li qhov uas yuav tsum muaj nrog lwm cov dej-soluble polymers.
Dow tshuaj tsim cov tshuaj muaj ntau yam ntawm cov khoom lag luam cellu, suav nrog methyl cellulose, hydroxyethyl cellulose thiab carboxymethyl cellulose. Methyl Cellulose Cov neeg muaj kev hais ua yog feem ntau siv rau ntau daim ntawv thov hauv lub tsev thiab kev tsim kho kev tsim kho.
Chemistry of cellulose neeg muaj kev pab
Peb lag luam muab cov neeg muaj kev pab hais txog cellulose hauv plaub hom pib:
1.hdroxyelyl methyl cellulose (hemc / mHEC)
2.hydroxyprotsythylropyl cellulose (HPMC, MC)
3.hydroxyethyl cellulose (HEC)
4.Cov methyl cellulose (cmc)
Ob hom muaj cov polymeric nraub qaum ntawm cellulection ntawm cellulate, lub ntuj carbohydrate uas muaj cov qauv rov ua dua tshiab ntawm cov chav nyob ntawm anhydoglulucose. Thaum lub sij hawm ua cov neeg siv cellulose, cellulene cov tshuaj uas tau ua rau methylene, thiab ua kom zoo nkauj, ua kom zoo nkauj, ua kom zoo nkauj, ua kom muaj txiaj ntsig zoo, Cov tshuaj tiv thaiv fibrous yog kev ua kom huv thiab av kom zoo, hnav khaub ncaws hnav.
Cov khoom tshwj xeeb cov khoom tseem tau tsim los ua kom tau raws li qhov yuav tsum tau ua ntawm kev lag luam specifc.
Peb cov khoom siv ntawm cellulose muaj nyob rau peb hom sib txawv: hmoov, cov hmoov zoo li cov hmoov thiab cov hmoov av. Cov khoom lag luam raug tsim cov qauv hauv fl uberes uas ua rau xaiv. Hauv cov ntawv thov qhuav feem ntau, tsis siv cov hmoov feem ntau yog siv, qhov uas lub cellulosic hmoov yog ntxiv rau cov hmoov av, cov ntaub ntawv zoo lossis cov ntaub ntawv zoo nkauj.
Cov Khoom Uas General
Cov khoom dav dav dav rau peb cov neeg ua haujlwm cellulose muaj npe nyob ntawm no. Cov khoom siv cov khoom ntiag tug ntawm cov khoom no rau qib sib txawv thiab yuav muaj
additional properties desirable for specific applications. For more information, email at sales@kimachemical.com .
| Ntiag tug | Cov ntsiab lus | Qhov Zoo |
| Khi | Siv raws li kev ua haujlwm high-ua haujlwm rau extruded fber-MAAs cov ntaub ntawv | Lub Zog Ntsuab |
| Emulsifcation | Ruaj khov emulsions los ntawm txo cov npoo av thiab cuam tshuam kev nro thiab los ntawm | Ruaj khov |
| Zaj duab xis tsim | Daim ntawv ntshiab, tawv, fl zoo li dej-soluble flms | • Kev teeb meem zoo heev rau roj thiab roj av |
| Lubrication | Txo kev sib txhuam hauv Maas Extrusion; Txhim kho cov cuab yeej ua haujlwm ua haujlwm | • Txhim kho kom muaj cov pob zeb ua tau, tshuab guts thiab tshuaj tsuag |
| Kev tsi muaj | Cov khoom lag luam tsis muaj kev them nqi ionic | • yuav tsis nyuaj nrog nws yog xim hlau ntsev lossis lwm yam ionic los ua |
| Solubility (organic) | Soluble nyob rau hauv binary organic thiab Organic kuab / dej tshuab rau xaiv hom thiab qib | TXIV TSHWJ XEEB LOS NTAWM COV AGGICS SOLUBILLANY THIAB DEJ SOLUBILY |
| Solubility (dej) | • Kho cov khoom hauv deg / cov khoom noj tau ntxiv tuaj yeem ntxiv rau aqueous | • Yooj yim ntawm kev dispersion thiab kev sib cais |
| ua kom ruaj khov | Ruaj khov dua li ntau ntawm 2.0 txog 13.0 | • Viscosity Stabilab |
| Nto Ua Si | • Ua raws li surfactants hauv kev daws teeb meem aqueous | • emulsifcation |
| Kev tso tseg | Kev tswj hwm kev teeb tsa ntawm cov khoom muaj nyob hauv cov tshuab aqueous | • Los tiv thaiv kev sib sau los yog pigments |
| Thermal Gelation | Tshwm sim rau cov kev daws teeb meem athyl ntawm methyl cellulose muaj kev hais ua ke thaum rhuab saum ib qho kub | • Cov tswv yim ceev ceev-teeb tsa cov gels rov qab mus rau hauv kev daws thaum txias |
| Sam xim | Ntau cov hnyav hnyav rau cov dej khov dej thickening | • Ntau yam ntawm rhe rheological |
| Dej ceev | Haib los tswj tus neeg saib xyuas; Khaws cov dej hauv cov txheej txheem | • Muaj effcient |
Cov cement-based pobzeb nplaum nplaum
Peb cov khoom lag luam kom ua tau zoo ntawm rho-pob ntawm dej khaws cia thiab nrog pseudoplastic rheudastic kev ua haujlwm. Ua tiav coldy thiab yooj yim ua haujlwm thiab xwm yeem, kev siv zog siab, txhim kho lub sijhawm qhib thiab qhib lub sijhawm zoo, thiab lwm yam.
Pobzeb Grouts
Cellulose hais ua haujlwm muaj nuj nqi raws li dej ceev thiab pab. Tshawb nrhiav yooj yim ua haujlwm yooj yim, zoo adhesion rau cov npoo ntawm cov vuas, qis shrinkage, siab nruj thiab cohesion, thiab ntau dua.
Tus kheej txoj kev taug kev underLayments
Cellulosics ignart dej ceev thiab lubricity los txhim kho fl Ow thiab tsis muaj zog, txo kev cais thiab ntau dua.
Mortars rau EIFS / Skim tsho tiv no
Xa cov kev ua kom zoo tshaj plaws kov nrog kev txhim kho cov haujlwm ua haujlwm, huab cua void stabilization, adhesion, dej tuav thiab ntau dua.
Caias-Raws Li Cov Plasters
Xa cov kev ua tau zoo dhau los ntawm kev txhim kho Sag tiv taus, kev ua haujlwm, qhib lub sijhawm, kev ua kom muaj cua ntsawj, tawm los thiab ntau dua.
Gypsum-based cov ntaub ntawv tsim
Xa cov nqi xav tau kawg ntawm kev du, txawm thiab ruaj khov nrog cov khoom lag luam zoo ib yam thiab tseem ceeb.
MAAs thiab Maas-Fiber Climed Cov Ntaub Ntawv
Txo cov kev sib txhuam thiab ua kom lub cev muaj zog los pab rau hauv extrusion thiab lwm yam kev ua cov txheej txheem.
Cov txheej txheej looj cov khoom siv (npaj-rau-siv)
Ib qho ntawm cov viscosity muaj cov kev ua haujlwm zoo, ncua sij hawm ua haujlwm, qhib lub sijhawm, kho lub sijhawm thiab ntau dua.
Lub sijhawm Post: Nov-13-2018