Sab hauv thiab sab nrauv phab ntsa putty hmoov, pobzeb nplaum, pobzeb taw tes tus neeg saib xyuas, cov hmoov qhuav interface tus neeg sawv cev, sab nraud thermal rwb thaiv tsev mortar rau sab nrauv phab ntsa, tus kheej-leveling mortar, kho mortar, hniav mortar, waterproof mortar sab nraud thermal rwb thaiv tsev qhuav-siv mortar.
Nyob rau hauv lub mortar, nws yog los txhim kho lub brittleness, siab elastic modulus thiab lwm yam tsis muaj zog ntawm cov tsoos cement mortar, thiab muab cov cement mortar nrog zoo elasticity thiab tensile daim ntawv cog lus lub zog, thiaj li tiv thaiv thiab ncua lub tiam ntawm cement mortar tawg. Txij li thaum lub polymer thiab cov mortar tsim ib qho kev sib txuas network qauv, ib tug nruam polymer zaj duab xis yog tsim nyob rau hauv lub qhov hws, uas ntxiv dag zog rau kev sib raug zoo ntawm cov aggregates thiab blocks ib co pores nyob rau hauv lub mortar, yog li cov hloov mortar tom qab hardening yog zoo dua li cov cement mortar. Muaj kev txhim kho loj.
Lub luag hauj lwm ntawm redispersible latex hmoov nyob rau hauv putty yog feem ntau nyob rau hauv cov nram qab no yam:
1. Txhim kho qhov adhesion thiab mechanical zog ntawm putty. Redispersible latex hmoov yog cov hmoov nplaum ua los ntawm ib qho tshwj xeeb emulsion (siab molecular polymer) tom qab tshuaj tsuag kom qhuav. Cov hmoov no tuaj yeem hloov pauv sai sai rau hauv emulsion tom qab kev sib cuag nrog dej, thiab muaj cov khoom zoo ib yam li thawj emulsion, uas yog, nws tuaj yeem tsim ib zaj duab xis tom qab dej evaporates. Cov yeeb yaj kiab no muaj qhov hloov tau yooj yim, huab cua tsis kam thiab ua haujlwm rau ntau yam High adhesion rau substrates. Tsis tas li ntawd, hydrophobic latex hmoov tuaj yeem ua rau cov tshuaj khib nyiab tsis zoo.
2. Txhim kho lub cohesion ntawm putty, zoo heev kuj, alkali tsis kam, hnav tsis kam, thiab txhim khu lub flexural zog.
3. Txhim kho cov dej tsis zoo thiab permeability ntawm putty.
4. Txhim kho cov dej tuav ntawm putty, nce lub sijhawm qhib, thiab txhim kho kev ua haujlwm.
5. Txhim kho qhov cuam tshuam tsis kam ntawm putty thiab txhim khu lub durability ntawm putty.
2. Lub luag hauj lwm ntawm redispersible latex hmoov nyob rau hauv pobzeb nplaum yog feem ntau nyob rau hauv cov nram qab no yam:
1. Raws li tus nqi ntawm cov cement nce, thawj lub zog ntawm cov nplais nplaum nplaum ntxiv. Nyob rau tib lub sijhawm, lub zog tensile nplaum tom qab tso rau hauv dej thiab lub zog tensile nplaum tom qab tshav kub kub kuj nce. Tus nqi ntawm cov cement yuav tsum siab dua 35%.
2. Nrog rau qhov nce ntawm cov nyiaj redispersible latex hmoov, lub tensile daim ntawv cog lus lub zog tom qab soaking nyob rau hauv dej thiab lub tensile daim ntawv cog lus lub zog tom qab thermal aging ntawm cov pobzeb adhesive nce raws li, tab sis lub tensile daim ntawv cog lus lub zog tom qab thermal aging nce kuj pom tseeb.
3. Nrog rau qhov nce ntawm cov cellulose ether, tensile nplaum lub zog ntawm cov nplais nplaum tom qab thermal aging nce, thiab tensile nplaum lub zog tom qab soaking hauv dej ua ntej nce thiab tom qab ntawd txo. Cov nyhuv yog qhov zoo tshaj plaws thaum cov ntsiab lus cellulose ether nyob ib ncig ntawm 0.3%.
Thaum siv redispersible latex hmoov, peb yuav tsum tau them sai sai rau cov nqi ntawm kev siv, thiaj li hais tias nws muaj peev xwm yeej ua si nws lub luag hauj lwm.
Post lub sij hawm: Jun-05-2023