Hydroxypropyl methylcellulose yog siv(HPMC) yog cov khoom siv ntau yam siv dav hauv ntau qhov kev lag luam, suav nrog kev tsim kho kev lag luam. Nws cov khoom tshwj xeeb ua rau nws yog ib qho tseem ceeb muaj nyob rau hauv ntau hom kev tsim kho. Nyob rau hauv tsab xov xwm no, peb yuav tshawb txog cov segmented daim ntawv thov ntawm hydroxypropyl methylcellulose hauv kev tsim kho kev lag luam, qhia txog nws qhov tseem ceeb thiab cov txiaj ntsig.
HPMC yog ibdej-soluble polymertau los ntawm cellulose. Nws yog feem ntau muaj raws li cov tshuaj hydroxypropyl methylcellulose, uas tuaj yeem yooj yim tov nrog dej los tsim cov tshuaj zoo li gel. Qhov kev daws teeb meem no ua raws li kev sib khi, thickener, thiab zaj duab xis qub hauv kev tsim kho.
Ib qho tseem ceeb ntawm kev siv hydroxypropyl methylcellulose nyob rau hauv kev tsim kho kev lag luam yog li mortar thiab plaster modifier. Thaum ntxiv rau cov ntaub ntawv cement-based, HPMC txhim kho lawv cov kev ua haujlwm, nplaum lub zog, thiab cov peev xwm tuav dej. Nws ua raws li tus neeg sawv cev thickening, txo qhov muaj feem ntawm sagging thiab txhim kho tag nrho cov sib xws ntawm cov sib tov. Qhov no ua rau nws yooj yim dua rau cov neeg ua haujlwm tsim kho kom siv cov mortar lossis plaster smoothly thiab sib npaug.
Lwm qhov tseem ceeb ntawm daim ntawv thovHPMCnyob rau hauv kev tsim kho yog raws li ib tug pobzeb nplaum additive. Thaum ntxiv rau cov nplais nplaum, HPMC txhim kho lawv lub zog sib txuas thiab muab lub sijhawm qhib zoo, tso cai rau kev hloov kho cov pobzeb yooj yim. Nws kuj tseem txhim kho qhov sib kis thiab ntub cov khoom ntawm cov nplaum, kom ntseeg tau qhov adhesion kom zoo rau lub substrate nto. Ntxiv mus, HPMC ua raws li kev tiv thaiv colloid, tiv thaiv kom qhuav ntxov ntxov ntawm cov nplaum thiab txo qhov tsim ntawm cov kab nrib pleb.
Ntxiv nrog rau cov tshuaj khib nyiab thiab cov nplaum nplaum, hydroxypropyl methylcellulose kuj tau siv dav los ua tus kheej-leveling compound additive. Self-leveling tebchaw yog siv los ua kom du thiab txawm nto ua ntej lub installation ntawm pem teb npog. HPMC tau ntxiv rau tus kheej-leveling tebchaw los txhim kho lawv cov dej ntws thiab qib theem. Nws txhim kho lub fluidity ntawm lub compound, cia nws kis tau yooj yim thiab nws tus kheej theem, ua rau ib tug zoo meej, tiaj tus nto.
Ntxiv mus,Hydroxypropyl methylcellulose yog tsim los ntawm cov tshuajplays lub luag haujlwm tseem ceeb hauv kev tsim cov txheej txheem sab nrauv thiab ua tiav (EIFS) hauv kev tsim kho kev lag luam. EIFS yog cov txheej txheem ntau txheej siv rau kev rwb thaiv tsev thermal thiab kho kom zoo nkauj. HPMC yog siv rau hauv lub hauv paus lub tsho tiv no thiab ua tiav lub tsho tiv no ntawm EIFS los txhim kho lawv cov kev ua haujlwm, tawg tsis kam, thiab adhesion rau lub substrate. Nws txhim kho qhov yooj thiab durability ntawm cov coatings, kom ntseeg tau tias kev ua haujlwm ntev.
Hauv kev xaus, hydroxypropyl methylcellulose muaj ntau daim ntawv thov hauv kev tsim kho. Nws muaj peev xwm hloov kho cov mortars thiab plasters, txhim kho cov pobzeb nplaum, txhim kho nws tus kheej-leveling compounds, thiab ntxiv dag zog rau EIFS ua rau nws muaj txiaj ntsig zoo hauv cov khoom siv. Kev siv HPMC hauv cov ntawv thov no pab txhawb rau kev ua haujlwm zoo dua, muaj zog ntawm daim ntawv cog lus, txhim kho cov yam ntxwv zoo, thiab txhim kho kev ua haujlwm ntev ntawm kev tsim kho. Raws li kev tsim kho kev lag luam txuas ntxiv mus, lub luag haujlwm ntawm hydroxypropyl methylcellulose yuav tseem ceeb, muab kev daws teeb meem rau ntau yam teeb meem hauv kev tsim kho.
Post lub sij hawm: Nov-02-2023