Cov hmoov txhuv nplej siab ether feem ntau yog siv hauv kev sib xyaw ntawm cug, Maas thiab txiv qaub, thiab kev hloov pauv ntawm cug. Cov hmoov txhuv nplej siab feem ntau yog siv rau hauv kev sib txuas nrog cov neeg tsis tau hloov kho thiab hloov kho cellulos. Nws yog qhov haum rau ob qho nruab nrab thiab cov tshuab alkaline, thiab tau tshaj tawm nrog feem ntau additives hauv gypsum thiab cov hmoov txhuv nplej siab thiab polyvinyl acetate thiab lwm yam dej-soluble polymers).
Lub ntsiab nta:
(1) Cov hmoov txhuv nplej siab ether feem ntau yog siv los ua ke nrog methyl cellulose ether, uas qhia tau tias muaj kev sib tw zoo ntawm ob. Ntxiv tus nqi tsim nyog ntawm cov hmoov txhuv nplej siab ether rau methyl cellulose thiab swb tsis kam ntawm lub tshuaj khib, nrog cov txiaj ntsig siab.
(2) Ntxiv ib tus nqi tsim nyog ntawm cov hmoov txhuv nplej siab etle ether cellulose muaj kev nce ntxiv ntawm cug tshuaj thiab txhim kho cov tshuaj khib thiab txhim kho smoother thiab scoother.
(3) Ntxiv tus nqi tsim nyog ntawm cov hmoov txhuv nplej siab etle rau cov tshuaj khib ether tuaj yeem ua kom cov dej tawm ntawm lub tshuaj khib thiab ntev lub sij hawm qhib.
(4) hmoov txhuv nplej siab ether yog kev hloov kho cov hmoov txhuv nplej siab ether, plhaw phab ntsa, ua ke sab hauv, gypsum-basped sib koom ua ke thiab sau cov ntaub ntawv , interface cov neeg sawv cev, Masonry Collu.
Cov yam ntxwv ntawm cov hmoov txhuv nplej siab ether tsuas yog dag hauv: (a) txhim kho sag tiv taus; (b) txhim kho cov haujlwm ua haujlwm; (c) txhim kho cov dej ua kom cov tshuaj cug.
Ntau yam kev siv:
Starch ether yog haum rau txhua hom (xis mas, gypsum, txiv qaub-calcium putty, thiab txhua yam tig cug thiab siv lub tshuab ua kua yas.
Nws tuaj yeem raug siv ua ib admixture rau cov cement-based khoom, gypsum-based khoom thiab kua qaub-calcium cov khoom. Starch ether muaj kev sib haum zoo nrog lwm yam kev tsim kho thiab kev txhim kho; Nws yog qhov tshwj xeeb tshaj yog tsim nyog rau kev tsim kho kom qhuav sib tov xws li tshuaj cug, cov nplaum, plastering thiab dov cov ntaub ntawv. Starch muaj kev hais txog thiab cov kws kho mob metylulose (Tylose MC qhab nia sib xyaw kom qhuav, muaj zog qauv, sag tsis kam thiab yooj yim ntawm kev tuav. Lub viscosity ntawm mortars, cov nplaum, cov yas thiab yob cov tshuaj tua neeg muaj zog los ntawm kev ntxiv ntawm cov hmoov txhuv nplej siab.
Lub sij hawm Post: Jun-13-2023