Hydroxypropyl methylcellulose ether (HPMC) muaj dej tuav thiab thickening cuam tshuam nyob rau hauv cov cement mortar thiab gypsum-raws li mortar, thiab tuaj yeem txhim kho qhov adhesion thiab ntsug ntawm cov tshuaj khib.
Cov yam ntxwv xws li cov pa kub, qhov kub thiab txias, thiab cov pa roj siab yog qhov cuam tshuam rau tus nqi ntawm evaporation ntawm cov dej hauv cov cement mortars thiab cov khoom siv gypsum.Yog li ntawd, tib tus nqi ntawm cov lag luam hydroxypropyl methylcellulose ether (HPMC) ntxiv los tswj cov dej muaj nyob ntawm lub caij mus rau lub caij.
Thaum pouring qhob, cov nyhuv ntawm cov dej xauv tuaj yeem hloov kho raws li qhov nce lossis txo qis ntawm cov dej ntws siab.Cov dej xauv tus nqi ntawm hydroxypropyl methylcellulose ether ntawm qhov kub thiab txias yog qhov tseem ceeb qhia tus nqi kom paub qhov zoo ntawm hydroxypropyl methylcellulose ether.
Cov khoom lag luam zoo hydroxypropyl methylcellulose ether (HPMC) tuaj yeem daws qhov teeb meem ntawm qhov kub thiab txias ntawm qhov ntsuas dej.Nyob rau hauv lub caij kub kub, tshwj xeeb tshaj yog nyob rau hauv kub thiab av noo thiab chromatography engineering vaj tse, yuav tsum tau siv high-zoo hydroxypropyl methylcellulose ether (HPMC) los txhim kho cov dej solubility ntawm slurry.
Qhov kev faib ua feem ntawm high-zoo hydroxypropyl methylcellulose ether (HPMC) yog ib qho zoo sib xws, thiab nws cov methoxy thiab hydroxypropyl pawg yog sib npaug ntawm cov qauv molecular saw ntawm methyl cellulose, uas tuaj yeem txhim kho cov cim ntawm oxygen molecules ntawm hydroxyl thiab ether bonds.Lub peev xwm ntawm covalent bonds ua haujlwm.
Nws muaj peev xwm tswj tau cov evaporation ntawm cov dej los ntawm huab cua kub thiab ua tiav cov txiaj ntsig ntawm kev kaw dej siab.High-zoo Hydroxypropyl Methylcellulose Ether (HPMC) muaj nyob thoob plaws hauv cov mortars thiab plaster ntawm paris crafts.
Tag nrho cov khoom siv yog encapsulated los ua ib zaj duab xis ntub dej.Pa dej yog tso tawm maj mam dhau lub sijhawm ntev thiab ua rau cov tshuaj tiv thaiv coagulation nrog cov ntaub ntawv inorganic thiab cov ntaub ntawv collagen kom ntseeg tau tias kev sib koom ua ke compressive zog thiab tensile zog.
Yog li ntawd, nyob rau hauv high-temperature tsim nyob rau hauv lub caij ntuj sov, thiaj li yuav ua kom tiav cov nyhuv ntawm txuag dej, cov neeg yuav tsum tau ntxiv high-zoo hydroxypropyl methylcellulose ether (HPMC) cov khoom raws li daim ntawv qhia zais cia, txwv tsis pub lawv yuav luv luv ntawm dej vim dej tsis txaus.Cov khoom lag luam teeb meem xws li solidification, txo compressive zog, kab nrib pleb, huab cua bulges, thiab lwm yam. ua rau kom qhuav ntau dhau.
Qhov no kuj ua rau muaj kev nyuaj ntawm kev tsim kho rau cov neeg ua haujlwm.Raws li qhov kub thiab txias, qhov ntxiv ntawm hydroxypropyl methylcellulose ether (HPMC) maj mam txo kom ua tiav cov dej noo tib yam.
Post lub sij hawm: Feb-06-2024