EPS Granular thermal thermal rwb thaiv tsev rwb thaiv tsev yog ib qho kev sib xyaw ua ke nrog inorganic bindation tov, admixture thiab lub teeb sib sau ua feem. Hauv kev tshawb fawb tam sim no thiab daim ntawv thov ntawm EPS particle particollle rollowle thiab muaj feem cuam tshuam ntawm tus nqi, yog li nws ib txwm yog qhov tseem ceeb ntawm kev saib xyuas. Txoj kev ua tau zoo ntawm EPS particle thermal rwburon cug sab sab phab ntsa therws, thiab nws feem feem ntau vinyl acetate / ethylene copolymer. Hom polymer no tuaj yeem muaj tshuaj tsuag-ziab kom tau txais cov hmoov zoo. Vim tias kev npaj kho kom meej ntawm recispersible looj kev tsim kho, kev tsim kho kom yooj yim, kev npaj kom yooj yim, kev thauj mus los yooj yim thiab yooj yim cia. Qhov kev ua tau zoo ntawm EPS PARALFLE RWB THAIVP CP yog muaj ntau ntawm hom thiab cov nyiaj polymer siv. Ethylene-vinyl acetate latetate latux hmoov (EVA) nrog cov ntsiab lus ethylene siab thiab muaj txiaj ntsig muaj lub zog cuam tshuam, nyiaj siv zog thiab dej tsis kam.
Qhov ua tau zoo ntawm kev ua tau zoo ntawm redispersible latterx hmoov nyob rau ntawm qhov tseeb tias cov polymer hmoov yog cov pab pawg molar. Thaum RDP yog tov nrog EPS cov lus, ntu tsis-polar, cov hmoov av tseem ceeb yuav ua rau adsorb uas tsis yog-polar nto ntawm EPS. Cov pawg polar hauv cov polymer yog kev taw qhia sab nraud ntawm EPS hais, ua rau EPS hais hloov ntawm hydrophobic rau hydrophilic rau hydrophilic. Vim tias kev hloov kho ntawm cov eps hais los ntawm cov hmoov polymer, cov teeb meem uas EPS cov lus yog qhov yooj yim kom tau raws li cov dej daws tau. Ntab, cov teeb meem loj ntawm cug colk delamination. Nyob rau lub sijhawm no, thaum ntxiv cov cement thiab nplawm, cov pawg polar adsorbed nrog cov EPS hais kom haum, uas txhim kho kev ua haujlwm ntawm EPS cov tshuaj cug. Qhov no yog xav txog hauv qhov tseeb tias EPS Yooj Yim Wetted los ntawm Maas slurry, thiab kev sib raug zoo ntawm ob yog kev txhim kho zoo heev.
Tom qab emulsionion thiab redispersible looj hmoov zoo yog tsim rau hauv zaj duab xis, lawv tuaj yeem tsim lub zog ntau dua thiab lub zog ntawm cov khoom sib txawv ntawm cov khoom sib txawv. Lawv tau siv los ua phau ntawv thib ob hauv lub colut kom muab cov hlua ua ke nrog cov ceg tawv nqaij Mement, cement thiab polymer feem. Ua si lub zog coj thiab txhim kho kev ua haujlwm ntawm lub tshuaj khib. Los ntawm kev saib xyuas microstructure ntawm cov khoom siv polymer-xis mas ua tau cov khoom siv polymer, thiab ua rau lub zog cug tag nrho los ntawm kev quab yuam sab hauv, uas txhim kho sab hauv Yuam ntawm lub cug. Lub zog polymer, yog li nce qhov tsis muaj kev ntxhov siab ntawm lub tshuaj khib thiab ua kom dhau qhov kawg nkaus. Txhawm rau kawm kev ua tau zoo ntev ntawm redispersible looj roj teeb, tom qab siv hluav taws xob hauv lub zog, tom qab lub zog hluav taws xob tsis tau, muaj zog ntawm lub zog thiab compressive lub zog zoo li hydrophobic Cov. Noj redispersible looj hmoov raws li kev tshawb xyuas cov khoom, thiab nws tau pom tias tom qab lub zog ua yeeb yaj kiab, thiab nws tau pom tias tom qab lub cug cug thiab pobzeb ntawm ib sab , thiab ntawm qhov tod tes, cov polymers nyob rau hauv lub tshuaj khib nyiab nce ntxiv cov txheej txheem huab cua, thiab tom qab ntawd thaum lub sij hawm tsim nyog ntawm cov txheej txheem hydration thiab shrinkage ntawm Cov xis mas. Cov nplaum nplaum, cov kev pab pab kom nce lub zog sib txuas.
Ntxiv recispersible looj hluav taws xob tuaj yeem txhim kho cov khoom siv hydrots, vim tias cov khoom noj kom zoo thiab cov khoom noj kom khov rau hauv cov pores thiab hauv capillary. Cov yeeb yaj kiab sab hauv yog tsim thiab nthuav dav adsorbed nyob rau saum npoo ntawm substrate, yog li ua kom muaj zog zoo ntawm cov khoom siv gelled thiab substrate.
Lub Sijhawm Post: Jun-16-2023