Methyl hydroxyethyl cellulose (MHEC) yog ib qho tseem ceeb ntawm cellulose ether derivative, siv dav hauv cov ntaub ntawv tsim kho, tshuaj pleev ib ce, ceramics, tshuaj pleev ib ce thiab lwm yam lag luam. Ua ib qho khoom siv ntxiv, MHEC ua lub luag haujlwm tseem ceeb hauv ntau yam kev siv vim nws cov khoom zoo heev rau kev ua kom tuab, khaws dej, lo thiab tsim zaj duab xis.
1. Daim ntawv thov hauv cov ntaub ntawv tsim kho
Hauv cov ntaub ntawv siv hauv kev tsim kho, MHEC siv dav hauv cov cement-based thiab gypsum-based dry mortar, feem ntau yog ua cov khoom ua kom tuab, cov neeg sawv cev khaws dej thiab cov khoom sib txuas. MHEC tuaj yeem txhim kho kev ua haujlwm ntawm cov mortar, txhim kho nws cov dej khaws cia, thiab tiv thaiv cov mortar tawg los ntawm kev poob dej sai. Tsis tas li ntawd, MHEC kuj tseem tuaj yeem txhim kho kev nplaum thiab lubricity ntawm mortar, ua rau kev tsim kho du.
Hauv cov nplaum thiab cov grouts rau pobzeb, qhov ntxiv ntawm MHEC tuaj yeem txhim kho qhov kev ua tau zoo tiv thaiv kev plam ntawm cov khoom siv thiab ntev lub sijhawm qhib, muab sijhawm ntau rau cov neeg ua haujlwm tsim kho kom hloov kho. Tib lub sijhawm, MHEC kuj tseem tuaj yeem txhim kho qhov kev tiv thaiv tawg thiab kev tiv thaiv shrinkage ntawm tus neeg sawv cev caulking kom ntseeg tau tias nws cov kev ua tau zoo ruaj khov mus sij hawm ntev.
2. Daim ntawv thov hauv kev lag luam txheej
Hauv kev lag luam txheej, MHEC feem ntau yog siv ua cov khoom ua kom tuab, cov khoom ruaj khov thiab cov khoom ua kom emulsifier. Vim tias MHEC muaj cov nyhuv ua kom tuab zoo heev, nws tuaj yeem tswj tau qhov rheology ntawm cov txheej, yog li txhim kho kev ua haujlwm thiab kev sib npaug ntawm cov txheej. Tsis tas li ntawd, MHEC kuj tseem tuaj yeem txhim kho kev ua haujlwm tiv thaiv kev poob qis ntawm cov txheej thiab xyuas kom meej tias cov txheej sib xws thiab kev zoo nkauj.
Hauv cov xim pleev xim latex, cov yam ntxwv ntawm MHEC uas khaws dej tau pab tiv thaiv kom tsis txhob muaj dej evaporation sai thaum lub sijhawm ziab xim, yog li ntawd thiaj li tsis txhob muaj qhov tsis zoo ntawm qhov chaw xws li tawg lossis qhuav. Tib lub sijhawm, cov yam ntxwv zoo ntawm MHEC kuj tseem tuaj yeem ua rau lub txheej tiv taus huab cua thiab kev txhuam tsis kam ntawm cov xim pleev xim, ua rau cov xim pleev xim ruaj khov dua.
3. Daim ntawv thov hauv kev lag luam ceramic
Hauv kev lag luam ceramic, MHEC siv dav ua ib qho khoom pab molding thiab binder. Vim nws cov dej zoo heev thiab cov khoom ua kom tuab, MHEC tuaj yeem txhim kho qhov plasticity thiab formability ntawm lub cev ceramic, ua rau cov khoom sib npaug thiab ntom dua. Tsis tas li ntawd, cov khoom sib txuas ntawm MHEC pab txhim kho lub zog ntawm lub cev ntsuab thiab txo qhov kev pheej hmoo ntawm kev tawg thaum lub sijhawm sintering.
MHEC kuj tseem ua lub luag haujlwm tseem ceeb hauv cov khoom siv ceramic glazes. Nws tsis yog tsuas yog txhim kho qhov kev ncua thiab kev ruaj khov ntawm cov khoom siv glaze xwb, tab sis kuj txhim kho qhov du thiab sib npaug ntawm cov khoom siv glaze kom ntseeg tau tias qhov zoo ntawm cov khoom siv ceramic.
4. Cov ntawv thov hauv cov tshuaj pleev ib ce thiab cov khoom siv tu tus kheej
MHEC kuj siv dav hauv cov tshuaj pleev ib ce thiab cov khoom siv tu tus kheej, feem ntau yog cov khoom ua kom tuab, cov khoom ua kom emulsifiers, cov khoom ruaj khov thiab cov neeg sawv cev ua zaj duab xis. Vim nws qhov mos mos thiab tsis ua rau khaus, MHEC tshwj xeeb tshaj yog siv rau hauv cov khoom siv tu tawv nqaij xws li tshuaj pleev, tshuaj pleev thiab tshuaj ntxuav ntsej muag. Nws tuaj yeem ua rau cov khoom sib xws thiab txhim kho nws cov qauv, ua rau cov khoom du thiab yooj yim dua rau kev siv.
Hauv cov khoom siv saib xyuas plaub hau, cov yam ntxwv ua zaj duab xis ntawm MHEC pab tsim ib daim zaj duab xis tiv thaiv rau ntawm qhov chaw ntawm cov plaub hau, txo cov plaub hau puas thaum ua rau cov plaub hau du thiab mos. Tsis tas li ntawd, cov yam ntxwv ua kom noo noo ntawm MHEC kuj tseem tuaj yeem ua lub luag haujlwm hauv kev kaw cov dej thiab ua kom noo noo hauv cov khoom siv saib xyuas tawv nqaij, ua kom cov nyhuv noo noo ntev dua.
5. Cov ntawv thov hauv lwm yam lag luam
Ntxiv rau cov chaw siv tseem ceeb uas tau hais los saum toj no, MHEC kuj tseem ua lub luag haujlwm tseem ceeb hauv ntau lwm yam lag luam. Piv txwv li, hauv kev lag luam roj av, MHEC siv rau hauv cov kua dej ua cov khoom ua kom tuab thiab ruaj khov los txhim kho qhov rheology ntawm cov kua dej thiab nws lub peev xwm los nqa cov txiav. Hauv kev lag luam textile, MHEC siv ua cov khoom ua kom tuab rau cov nplaum luam ntawv, uas tuaj yeem txhim kho qhov meej thiab qhov ci ntawm cov qauv luam ntawv.
MHEC kuj tseem siv rau hauv kev lag luam tshuaj ua tus neeg sawv cev thiab tus neeg sawv cev ua zaj duab xis rau cov ntsiav tshuaj, uas tuaj yeem txhim kho lub zog kho tshuab thiab qhov zoo ntawm cov ntsiav tshuaj. Tsis tas li ntawd, hauv kev lag luam zaub mov, MHEC kuj tseem siv ua tus neeg ua kom tuab thiab emulsifier hauv kev tsim cov khoom qab zib, dej haus thiab cov khoom noj mis nyuj kom txhim kho qhov saj thiab kev ruaj khov ntawm cov khoom.
Methylhydroxyethylcellulose (MHEC) tau siv dav hauv cov ntaub ntawv tsim kho, cov tshuaj pleev xim, cov khoom siv av nplaum, cov tshuaj pleev ib ce thiab lwm yam lag luam vim nws cov khoom zoo heev uas ua rau tuab, khaws dej tau zoo, nplaum tau zoo thiab ua tau zaj duab xis tau zoo. Nrog rau kev nce qib ntawm thev naus laus zis thiab kev sib txawv ntawm kev thov ua lag luam, cov teb thov ntawm MHEC tseem tab tom nthuav dav, thiab nws qhov tseem ceeb hauv ntau yam lag luam yuav dhau los ua qhov tseem ceeb dua.
Lub sijhawm tshaj tawm: Lub Yim Hli-30-2024