Hydroxyethyl methylcellulose (HEMC)yog ib qho cellulose ether uas tsis yog ionic siv dav hauv ntau yam lag luam. Nws yog ib qho hmoov dawb lossis dawb tawm ua los ntawm cov khoom siv polymer ntuj - paj rwb zoo los ntawm kev tshuaj lom neeg xws li alkalization thiab etherification. Nws muaj cov dej zoo solubility, dej khaws cia, zaj duab xis-tsim khoom, thickening khoom, emulsification thiab stability.
1. Daim ntawv thov hauv kev lag luam kev tsim kho
Hydroxyethyl methylcellulose siv dav hauv kev lag luam kev tsim kho, tshwj xeeb tshaj yog hauv cov khoom siv sib xyaw qhuav, uas feem ntau pom hauv cov hauv qab no:
Kev khaws dej kom ruaj khov: Tom qab ntxiv HEMC rau hauv cov cement mortar lossis cov khoom gypsum, nws cov kev ua haujlwm khaws dej tuaj yeem txhim kho tau zoo heev, tiv thaiv kev poob dej ntau dhau, txhawb kev ua kom cov cement noo, thiab txhim kho kev nplaum thiab lub zog.
Txhim kho kev ua tau zoo ntawm kev tsim kho: HEMC tuaj yeem txhim kho qhov lubricity thiab workability ntawm mortar, ua rau plastering, brick laying thiab lwm yam txheej txheem du, txo cov cuab yeej adhesion, thiab txhim kho kev ua haujlwm ntawm kev tsim kho.
Cov khoom tiv thaiv kev sagging: Hauv cov khoom siv tsim kho ntsug xws li cov nplaum pobzeb thiab hmoov putty, HEMC tuaj yeem txhim kho nws cov khoom tiv thaiv kev sagging thiab tiv thaiv cov khoom los ntawm kev ntws thaum lub sijhawm tsim kho.
Cov nyhuv ua kom tuab: HEMC tuaj yeem ua rau cov mortar viscosity nce ntxiv, ua rau nws yooj yim dua los lo rau ntawm qhov chaw ntawm lub substrate, txhim kho cov txheej thiab cov khoom slurry.
Txhim kho lub sijhawm ua haujlwm: Ntev lub sijhawm qhib, txhim kho kev ywj pheej ua haujlwm, thiab pab txhawb kev hloov kho kev tsim kho.
Cov khoom siv feem ntau suav nrog: cov nplaum rau pobzeb, cov tshuaj nplaum rwb thaiv tsev phab ntsa sab nraud, hmoov putty, cov tshuaj nplaum plastering, cov tshuaj nplaum self-leveling, cov tshuaj nplaum qhuav sib xyaw, thiab lwm yam.
2. Daim ntawv thov hauv kev lag luam txheej txheem
Hauv kev lag luam pleev xim thiab pleev xim, hydroxyethyl methyl cellulose yog siv los ua cov khoom ua kom tuab, emulsifier, dispersant thiab zaj duab xis-tsim tus neeg sawv cev. Nws cov haujlwm yog raws li nram no:
Kev ua kom tuab thiab ruaj khov: HEMC tuaj yeem ua rau kom cov xim pleev xim latex viscosity zoo dua, tiv thaiv cov xim los nag, thiab txhim kho kev ruaj khov ntawm kev khaws cia.
Txhim kho kev txhuam hniav: Txhim kho kev txhuam, dov lossis txau xim, ua rau nws cov qauv du thiab txo qhov txaws thiab dej ntws.
Kev khaws dej thiab tsim zaj duab xis: Kev tswj hwm qhov sib npaug ntawm cov dej noo ntawm qhov chaw ntawm cov xim pleev xim yog qhov zoo rau kev tsim zaj duab xis thiab txhim kho qhov sib xws thiab du ntawm cov xim pleev xim.
Kev ruaj khov pH zoo: HEMC tuaj yeem ruaj khov nyob rau hauv ntau yam pH (3 ~ 11) thiab tsim nyog rau ntau yam xim pleev xim.
Yog li ntawd, HEMC yog siv rau hauv cov xim pleev xim dej xws li cov xim pleev xim latex sab hauv thiab sab nraud ntawm phab ntsa, cov xim pleev xim rau kev lag luam hauv dej, thiab cov xim pleev ntoo.
3. Daim ntawv thov rau cov khoom siv tshuaj txhua hnub
Hydroxyethyl methylcellulose siv dav hauv cov khoom siv tshuaj txhua hnub xws li tshuaj zawv plaub hau, tshuaj da dej, tshuaj txhuam hniav, thiab cov khoom siv tu tawv nqaij. Nws cov haujlwm tseem ceeb yog:
Thickener: Txhim kho qhov viscosity ntawm cov khoom ua kua thiab txhim kho kev paub txog cov khoom.
Emulsification thiab kev ncua: Ua kom lub kaw lus emulsion ruaj khov, tiv thaiv kev sib cais ntawm cov roj theem thiab cov dej theem, thiab ua kom cov tshuaj nplaum ruaj khov thiab sib xws.
Cov nyhuv moisturizing: Nws muaj kev ua tau zoo ntawm kev khaws dej, tiv thaiv kev ua kom dej ntawm daim tawv nqaij lossis plaub hau evaporation, thiab ua rau cov roj nplua nyeem ntau ntxiv.
Kev mos mos zoo: HEMC yog cov cellulose tsis-ionic uas tsis ua rau khaus tawv nqaij thiab tsim nyog rau cov tawv nqaij rhiab heev thiab cov khoom siv rau menyuam yaus.
4. Daim ntawv thov hauv kev lag luam tshuaj thiab zaub mov
Txawm hais tias kev siv tseem ceeb ntawm HEMC yog tsom mus rau hauv kev lag luam, HEMC kuj tseem siv tau rau hauv kev lag luam tshuaj thiab zaub mov raws li qee qhov kev qhia tshwj xeeb.
Cov tshuaj ntxiv: HEMC yog siv los ua cov khoom siv khi, zaj duab xis qub thiab cov khoom siv tso tawm rau cov ntsiav tshuaj kom tswj tau qhov kev tso tawm ntawm cov tshuaj.
Cov khoom noj ntxiv: Hauv qee lub tebchaws/cheeb tsam, HEMC raug tso cai siv ua cov khoom noj thickener, emulsifier thiab stabilizer, xws li hauv cov khoom noj khov, khoom qab zib, condiments, thiab lwm yam.
Cov ntaub ntawv txheej txheem tso tawm tas mus li: HEMC yog siv los npaj cov tshuaj tso tawm tas mus li, thiab nws cov khoom tsim zaj duab xis tswj lub sijhawm tso tawm thiab tus nqi ntawm cov tshuaj hauv txoj hnyuv plab.
5. Daim ntawv thov hauv lwm yam lag luam
Kev khawb roj: HEMC yog siv los ua cov khoom siv lim dej thiab cov khoom ua kom tuab hauv cov kua dej drilling kom txhim kho kev ruaj khov ntawm cov kua dej drilling thiab txo cov kua poob.
Kev lag luam ua ntawv: HEMC tuaj yeem siv rau kev kho qhov chaw ntawv kom txhim kho nws qhov du, tiv taus roj thiab luam tawm tau.
Kev lag luam textile: Siv ua cov tshuaj luam ntawv thiab zas xim kom muab cov ntaub zoo thiab cov khoom ntxuav.
Kev lag luam ceramic: Thaum lub sijhawm ua cov txheej txheem ceramic, HEMC ua rau lub zog ntawm lub cev ntsuab thiab txhim kho qhov sib xws ntawm glazing.
Hydroxyethyl methylcelluloseyog ib qho cellulose ether ntau yam nrog kev ua tau zoo heev thiab siv tau dav. Nws cov khoom ua kom tuab, khaws dej, tsim zaj duab xis, emulsifying thiab lwm yam khoom ua rau nws nyob hauv txoj haujlwm tseem ceeb hauv ntau yam lag luam xws li kev tsim kho, kev pleev xim, tshuaj txhua hnub, tshuaj, thiab zaub mov. Nrog rau kev nce qib ntawm kev tiv thaiv ib puag ncig ntsuab thiab cov tswv yim kev txhim kho kom ruaj khov, HEMC, ua ib qho khoom siv zoo rau ib puag ncig uas tau los ntawm cov fibers ntuj, xav tias yuav txuas ntxiv nthuav nws cov kev thov ua lag luam thiab thaj chaw siv.
Lub sijhawm tshaj tawm: Tsib Hlis-20-2025