Lub redispersible polymer hmoov RDP tuaj yeem hloov pauv sai sai rau hauv emulsion tom qab sib cuag nrog dej, thiab muaj cov khoom zoo ib yam li thawj emulsion, uas yog, zaj duab xis tuaj yeem tsim tom qab dej evaporates. Cov yeeb yaj kiab no muaj qhov hloov tau yooj yim, huab cua ua haujlwm siab thiab ua haujlwm rau ntau yam High adhesion rau ntau yam substrates. Tsis tas li ntawd, cov hmoov latex nrog hydrophobicity tuaj yeem ua rau cov mortar muaj dej tsis zoo.
Redispersible polymer hmoov yog siv rau hauv:
Sab hauv thiab sab nrauv phab ntsa putty hmoov, pobzeb nplaum, pobzeb grout, qhuav hmoov interface tus neeg sawv cev, sab nrauv phab ntsa thermal rwb thaiv tsev mortar, tus kheej-leveling mortar, kho mortar, hniav mortar, waterproof mortar thiab sab nraud thermal rwb thaiv tsev qhuav-siv mortar. Nyob rau hauv lub mortar, nws yog los txhim kho qhov tsis muaj zog ntawm cov tsoos cement mortar xws li brittleness thiab siab elastic modulus, thiab muab cov cement mortar zoo dua elasticity thiab tensile daim ntawv cog lus lub zog los 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 pores, uas ntxiv dag zog rau kev sib raug zoo ntawm cov aggregates thiab blocks ib co ntawm cov pores nyob rau hauv lub mortar. Yog li ntawd, cov mortar hloov tom qab hardening muaj kev ua tau zoo dua li cement mortar. Kev txhim kho zoo heev.
Lub luag hauj lwm ntawm redispersible polymer hmoov nyob rau hauv mortar yog feem ntau nyob rau hauv cov nram qab no yam:
1 Txhim kho lub zog compressive thiab flexural zog ntawm mortar.
2 Qhov sib ntxiv ntawm cov hmoov latex nce qhov elongation ntawm mortar, yog li txhim kho qhov cuam tshuam toughness ntawm mortar, thiab tib lub sij hawm muab cov mortar zoo rau kev ntxhov siab.
3 Txhim kho cov khoom sib txuas ntawm mortar. Cov txheej txheem kev sib txuas yog nyob ntawm qhov adsorption thiab diffusion ntawm macromolecules ntawm cov nplaum nplaum. Nyob rau tib lub sijhawm, cov hmoov roj hmab muaj qee yam permeability thiab tag nrho infiltrates saum npoo ntawm cov khoom siv hauv paus ua ke nrog cellulose ether, kom cov khoom nto ntawm lub hauv paus txheej thiab cov plaster tshiab nyob ze, yog li txhim kho kev ua haujlwm ntawm cov khoom siv hauv paus. . Adsorption, nws cov kev ua tau zoo heev nce.
4 Txo cov elastic modulus ntawm mortar, txhim kho lub peev xwm deformation, thiab txo qhov tshwm sim tawg.
5 Txhim kho qhov abrasion tsis kam ntawm mortar. Kev txhim kho ntawm kev hnav tsis kam yog feem ntau yog vim muaj qee qhov ntawm cov roj hmab ridges ntawm qhov chaw ntawm lub mortar, roj hmab hmoov plays lub luag hauj lwm sib txuas, thiab cov qauv mesh tsim los ntawm cov hmoov roj hmab tuaj yeem dhau los ntawm qhov thiab cov kab nrib pleb hauv. cov cement mortar. Txhim kho qhov adhesion ntawm cov ntawv khi rau cov khoom siv cement hydration, yog li ua rau kev hnav tsis kam.
6 Muab cov mortar zoo heev alkali tsis kam.
7 Txhim kho lub cohesion ntawm putty, zoo heev kuj, alkali tsis kam, abrasion kuj, thiab txhim khu lub flexural zog.
8. Txhim kho cov dej tsis zoo thiab permeability ntawm putty.
9 Txhim kho cov dej tuav ntawm lub putty, nce lub sijhawm qhib, thiab txhim kho kev ua haujlwm.
10 Txhim kho qhov cuam tshuam tsis kam ntawm putty thiab txhim khu lub durability ntawm putty.
Redispersible latex hmoov yog ua los ntawm polymer emulsion los ntawm kev ziab kom qhuav. Tom qab sib tov nrog dej hauv mortar, nws yog emulsified thiab dispersed nyob rau hauv dej los tsim ib tug ruaj khov polymer emulsion. Tom qab redispersible latex hmoov yog emulsified thiab dispersed nyob rau hauv dej, cov dej evaporates. Cov zaj duab xis polymer yog tsim nyob rau hauv mortar los txhim kho cov khoom ntawm lub mortar. Cov hmoov sib txawv redispersible polymer hmoov muaj qhov sib txawv ntawm cov hmoov qhuav mortar.
Cov khoom ntawm dispersible polymer hmoov
── Txhim kho lub zog flexural thiab flexural zog ntawm mortar
Cov yeeb yaj kiab polymer tsim los ntawm Zhaojia dispersible polymer hmoov muaj qhov yooj yim. Ib zaj duab xis yog tsim nyob rau hauv qhov khoob thiab qhov chaw ntawm cov cement mortar hais los ua ib qho kev sib txuas yooj yim. Heavy thiab brittle cement mortar ua elastic. Lub mortar ntxiv nrog dispersible polymer hmoov yog ob peb zaug siab dua nyob rau hauv tensile thiab flexural tsis kam tshaj li qub mortar.
── Txhim kho cov nplaum nplaum thiab cohesion ntawm mortar
Lub redispersible polymer hmoov raws li cov organic binder tuaj yeem tsim ib zaj duab xis nrog lub zog tensile siab thiab lub zog ntawm cov khoom sib txawv. Nws ua lub luag haujlwm tseem ceeb hauv kev sib txuas ntawm cov tshuaj khib nyiab thiab cov khoom siv organic (EPS, extruded foam board) thiab substrates nrog cov npoo du. Cov zaj duab xis-forming polymer hmoov yog muab faib thoob plaws hauv lub mortar system raws li ib tug reinforcing khoom los ua kom cov cohesion ntawm lub mortar.
── Txhim kho qhov cuam tshuam tsis kam, durability thiab hnav tsis kam ntawm mortar
Cov roj hmab hmoov cov khoom ntim cov kab noj hniav ntawm cov mortar, qhov ntom ntawm cov mortar nce, thiab hnav tsis kam zoo tuaj. Nyob rau hauv qhov kev txiav txim ntawm sab nraud quab yuam, nws yuav so tsis tau puas. Cov zaj duab xis polymer tuaj yeem nyob mus tas li hauv lub tshuab mortar.
── Txhim kho huab cua tiv thaiv thiab khov-thaw tsis kam ntawm cov tshuaj khib thiab tiv thaiv cov tshuaj khib nyiab los ntawm kev tawg
Redispersible latex hmoov yog ib qho thermoplastic resin nrog kev ua haujlwm zoo, uas tuaj yeem ua rau cov mortar teb rau cov kev hloov pauv ntawm qhov chaw kub thiab txias, thiab tiv thaiv kom tsis txhob muaj qhov sib txawv ntawm qhov kub thiab txias.
── Txhim kho cov dej tawm ntawm cov mortar thiab txo cov dej nqus dej
Lub redispersible latex hmoov tsim ib zaj duab xis nyob rau hauv cov kab noj hniav thiab nto ntawm lub mortar, thiab cov polymer zaj duab xis yuav tsis dispersed ob zaug tom qab ntsib dej, uas tiv thaiv cov intrusion ntawm dej thiab txhim kho impermeability. Tshwj xeeb dispersible polymer hmoov nrog cov nyhuv hydrophobic, zoo dua hydrophobic nyhuv.
── Txhim kho kev ua haujlwm ntawm mortar siv &
Cov hmoov roj hmab polymer muaj cov nyhuv lubricating nruab nrab ntawm cov khoom, kom cov tshuaj khib nyiab tuaj yeem ntws tawm ntawm nws tus kheej. Nyob rau tib lub sijhawm, cov hmoov roj hmab muaj cov nyhuv inductive rau saum huab cua, muab cov mortar compressibility thiab txhim kho kev tsim kho thiab kev ua haujlwm ntawm mortar.
Khoom siv ntawm dispersible polymer hmoov
1. Sab nrauv phab ntsa thermal rwb thaiv tsev:
Bonding mortar: Xyuas kom meej tias cov mortar ruaj khov rau phab ntsa nrog EPS board. Txhim kho daim ntawv cog lus zog.
Plastering mortar: los xyuas kom meej lub zog txhua yam, tawg tsis kam thiab durability ntawm thermal rwb thaiv tsev system, thiab cuam tshuam tsis kam.
2. Pobzeb nplaum thiab caulking tus neeg sawv cev:
Pobzeb Adhesive: Muab cov ntawv cog lus muaj zog rau cov mortar, muab cov mortar txaus kom strain qhov sib txawv thermal expansion coefficients ntawm substrate thiab cov pobzeb.
Filler: Ua kom cov mortar impermeable thiab tiv thaiv kev nkag ntawm dej. Nyob rau tib lub sijhawm, nws muaj qhov zoo adhesion nrog ntug ntawm cov pobzeb, tsis tshua muaj shrinkage thiab yooj.
3. Pobzeb kho dua tshiab thiab ntoo plastering putty:
Txhim kho qhov adhesion thiab bonding zog ntawm putty rau tshwj xeeb substrates (xws li pobzeb nto, mosaics, plywood thiab lwm yam du nto), thiab xyuas kom meej tias lub putty muaj zoo yooj yooj yim rau strain lub expansion coefficient ntawm lub substrate.
Plaub, sab hauv thiab sab nrauv phab ntsa putty:
Txhim kho lub zog sib txuas ntawm lub putty thiab xyuas kom meej tias lub putty muaj qee qhov kev hloov pauv kom tsis txhob cuam tshuam cov txiaj ntsig ntawm kev nthuav dav sib txawv thiab kev ntxhov siab uas tsim los ntawm cov txheej txheem sib txawv. Xyuas kom meej tias lub putty muaj zoo aging kuj, impermeability thiab noo noo kuj.
5. Self-leveling pem teb mortar:
Los xyuas kom meej qhov sib piv ntawm elastic modulus ntawm lub mortar thiab kev tiv thaiv rau dabtsi yog khoov quab yuam thiab tawg. Txhim kho qhov hnav tsis kam, daim ntawv cog lus lub zog thiab cohesion ntawm mortar.
6. Interface mortar:
Txhim kho lub zog saum npoo ntawm lub substrate thiab xyuas kom meej qhov adhesion ntawm mortar.
Xya, cement-based waterproof mortar:
Xyuas kom cov dej tsis zoo ntawm cov mortar txheej, thiab tib lub sij hawm muaj adhesion zoo nrog lub hauv paus nto, txhim kho lub compressive thiab flexural lub zog ntawm lub mortar.
Yim, kho mortar:
Xyuas kom meej tias qhov expansion coefficient ntawm mortar thiab substrate match, thiab txo cov elastic modulus ntawm mortar. Xyuas kom lub mortar muaj dej txaus, breathability thiab adhesion.
9. Masonry plastering mortar:
Txhim kho kev tuav dej.
Txo cov dej poob mus rau qhov ntxeem tau substrate.
Txhim kho qhov yooj yim ntawm kev tsim kho kev lag luam thiab txhim kho kev ua haujlwm zoo.
Post lub sij hawm: Oct-27-2022