Cov khoom siv tsev qibcellulose etheryog ib qho tseem ceeb ntawm cov khoom siv tshuaj ntxiv, uas yog siv dav hauv cov khoom siv hauv tsev, xws li cov cement, pob zeb, mortar qhuav, thiab lwm yam.
1. Cov qauv tshuaj thiab kev faib tawm
Cellulose ether yog ib qho polymer compound tsim los ntawm kev hloov tshuaj ntawm ntuj cellulose. Nws cov khoom tseem ceeb yog pawg hydroxyl ntawm cellulose hloov kho los ntawm tus neeg sawv cev etherifying (xws li vinyl chloride, acetic acid, thiab lwm yam). Raws li cov pab pawg etherifying sib txawv, nws tuaj yeem muab faib ua ntau hom cellulose ethers, feem ntau suav nrog hydroxypropyl methylcellulose (HPMC), hydroxyethyl cellulose (HEC) thiab methyl cellulose (MC).
2. Kev tuav dej
Cov ntaub ntawv hauv tsev qib cellulose ether muaj cov dej tuav tau zoo, uas tuaj yeem txhim kho cov dej tuav lub peev xwm ntawm mortar thiab pob zeb. Qhov no txhim kho kev ua haujlwm ntawm cov khoom siv thaum lub sijhawm tsim kho thiab txo qhov tawg thiab lub zog poob los ntawm dej evaporation.
3. Thickening
Cellulose ether muaj cov khoom thickening zoo, uas tuaj yeem txhim kho cov kua dej thiab viscosity ntawm cov khoom siv hauv tsev, ua rau lawv yooj yim rau kev khiav lag luam thaum siv. Thickening pab txhim kho kev ruaj ntseg ntawm cov khoom thiab tiv thaiv stratification thiab sedimentation.
4. Dej txo
Rau ib qho twg,cellulose etherstuaj yeem txo cov dej hauv pob zeb lossis mortar, yog li txhim kho lub zog thiab ua haujlwm ntev ntawm cov khoom. Cov yam ntxwv no ua rau nws tseem ceeb tshwj xeeb hauv kev siv cov pob zeb ua haujlwm siab.
5. Kev tsim kho kev ua haujlwm
Cov khoom siv hauv tsev nrog cov cellulose ethers muaj kev ua haujlwm zoo dua thaum lub sijhawm tsim kho, uas tuaj yeem txuas lub sijhawm tsim kho thiab txo cov teeb meem kev tsim kho los ntawm kev ziab. Tsis tas li ntawd, lawv tuaj yeem txhim kho qhov adhesion ntawm mortar thiab txhim khu kev adhesion ntawm cov ntaub ntawv txheej.
6. Kev ua haujlwm tawg
Cellulose ethers tuaj yeem txhim kho qhov tawg tsis kam ntawm mortar thiab pob zeb thiab txo cov kab nrib pleb uas tshwm sim los ntawm kev hloov pauv kub lossis ziab kom qhuav. Qhov no yog qhov tseem ceeb rau kev ruaj ntseg mus ntev thiab zoo nkauj ntawm cov tsev.
7. Adaptability thiab compatibility
Cov khoom siv hauv tsev qib cellulose ethers muaj kev sib raug zoo nrog ntau yam khoom siv hauv tsev thiab tuaj yeem sib xyaw nrog cov cement, gypsum, polymers thiab lwm yam khoom xyaw yam tsis muaj kev cuam tshuam rau lawv cov kev ua tau zoo. Qhov kev hloov pauv no ua rau cellulose ethers dav siv hauv kev tsim kho kev lag luam.
8. Kev tiv thaiv ib puag ncig
Raws li raw cov ntaub ntawv ntawmcellulose ethersyog muab los ntawm cov nroj tsuag fibers, lawv lawv tus kheej muaj qee yam kev tiv thaiv ib puag ncig. Piv nrog rau qee cov hluavtaws polymers, cellulose ether yog ib puag ncig zoo rau kev siv thiab pov tseg.
9. Daim ntawv thov teb
Cov khoom siv hauv tsev qib cellulose ether yog siv dav hauv ntau yam khoom siv hauv tsev, suav nrog:
Qhuav mortar: xws li kev sib txuas mortar, plastering mortar, thiab lwm yam.
Pob zeb: tshwj xeeb tshaj yog cov pob zeb ua haujlwm siab.
Txheej: tuaj yeem siv rau sab hauv thiab sab nrauv phab ntsa coatings, latex xim, thiab lwm yam.
Gypsum khoom: xws li gypsum board thiab gypsum putty.
10. Ceev faj rau kev siv
Thaum siv cov khoom siv hauv tsev qib cellulose ether, koj yuav tsum tau xyuam xim rau cov ntsiab lus hauv qab no:
Ntxiv raws li qhov pom zoo piv, ntau dhau lossis tsis txaus yuav cuam tshuam rau qhov kev ua tau zoo kawg.
Xyuas kom uniformity thaum sib tov kom tsis txhob agglomeration.
Thaum khaws cia, ua tib zoo saib xyuas cov dej-pov thawj kom tsis txhob ya raws thiab agglomeration.
Cov khoom siv hauv tsev qib cellulose ether tau dhau los ua ib qho khoom siv tseem ceeb hauv kev lag luam khoom siv vim nws cov khoom tshwj xeeb thiab kev siv dav. Nrog rau kev txhim kho txuas ntxiv ntawm kev tsim kho kev lag luam cov kev cai rau kev ua haujlwm ntawm cov khoom siv, daim ntawv thov kev cia siab ntawm cellulose ether yuav dav dua.
Post lub sij hawm: Nov-06-2024