Kev nkag siab zoo ntawm dispersible polymer hmoov (VAE) thiab nws cov nyhuv ntawm mortar qhuav

Redispersible latex hmoov yog ua los ntawm polymer emulsion los ntawm kev ziab kom qhuav. Nws yog tov nrog dej nyob rau hauv cement mortar, emulsified thiab dispersed nyob rau hauv dej, thiab ces regenerates ib tug ruaj khov polymer emulsion. Tom qab cov roj hmab hmoov yog emulsified thiab dispersed nyob rau hauv dej, cov dej evaporates. Cov zaj duab xis polymer yog tsim nyob rau hauv los txhim kho cov khoom ntawm lub mortar. Cov hmoov sib txawv redispersible latex muaj qhov sib txawv ntawm cov hmoov qhuav mortar.

Dab tsi ntawm mortar tuaj yeem txhim kho los ntawm redispersible latex hmoov?

1. Txhim kho qhov cuam tshuam, kev ua haujlwm thiab hnav tsis kam ntawm mortar

Lub mortar yog ntim nrog cov cement mortar pore kab noj hniav, lub compactness ntawm cement mortar yog txhim kho, thiab hnav tsis kam yog zoo dua. Nyob rau hauv qhov kev txiav txim ntawm kev quab yuam sab nraud, nws tuaj yeem ua rau kev so tsis muaj kev puas tsuaj. Polymer daim ntawv tuaj yeem khaws cia hauv cement mortar tswj system.

2. Txhim kho qhov adhesion ntawm mortar siv

Cov hmoov polymer hmoov muaj cov nyhuv ntub dej, yog li ob qho tib si ntawm cov cement mortar tuaj yeem ntws ntawm nws tus kheej. Tsis tas li ntawd, cov hmoov roj hmab muaj cov nyhuv inducing gas.

3. Txhim kho qhov sib txuas compressive zog thiab cohesive quab yuam ntawm mortar

Raws li cov organic tshuaj nplaum, redispersible latex hmoov tuaj yeem tsim muaj zog compressive thiab compressive zog ntawm cov laug cam. Nws ua lub luag haujlwm tseem ceeb hauv kev sib txuas ntawm cov cement mortar thiab organic chemical raw cov ntaub ntawv (lub plab, extruded insulating foam board) thiab qhov chaw ntawm lub rooj tsavxwm ntxuav. Roj hmab hmoov yog dav siv nyob rau hauv tag nrho cov cement mortar tswj systems los txhim kho cov cohesion ntawm cement mortar.

4. Txhim kho kev laus tiv thaiv ntawm mortar, tiv thaiv lub voj voog khov-thaw, thiab tiv thaiv cov cement mortar los ntawm kev tawg.

Roj Hmab hmoov yog cov thermoplastic resin nrog kev ua tau zoo, uas tuaj yeem ua rau cov mortar cuam tshuam nrog kev puas tsuaj los ntawm lwm qhov chaw kub thiab txias, thiab tsim nyog kom tsis txhob muaj kab nrib pleb hauv mortar vim qhov kub thiab txias.

5. Ua kom cov hydrophobicity ntawm mortar thiab txo cov dej noo

Cov roj hmab hmoov demulsifies nyob rau hauv cov cement mortar kab noj hniav thiab txheej txheej, thiab cov ntawv polymer tsis yooj yim rau redisperse tom qab dej kho, thaiv cov dej nkag thiab txhim kho impermeability.

Daim ntawv thov tseem ceeb ntawm redispersible latex hmoov:

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.

Cov khoom ua tau zoo ntawm redispersible latex hmoov:

1. Txhim kho qhov khoov lub zog thiab flexural zog ntawm mortar

Cov zaj duab xis polymer tsim los ntawm Zhaojia redispersible polymer hmoov muaj qhov yooj yim. Cov yeeb yaj kiab tau tsim nyob rau hauv qhov khoob thiab qhov chaw ntawm cov cement mortar particles los tsim kev sib txuas yooj yim. Heavy thiab brittle cement mortar ua elastic. mortar ntxiv nrog redispersible latex hmoov yog ob peb zaug siab dua nyob rau hauv tensile thiab flexural tsis kam tshaj li qub mortar.

2. Txhim kho qhov kev sib txuas ntawm lub zog thiab cohesion ntawm mortar

Tom qab redispersible latex hmoov raws li ib tug organic binder yog tsim rau hauv ib zaj duab xis, nws muaj peev xwm tsim high tensile lub zog thiab kev sib raug zoo lub zog ntawm txawv substrates. Nws ua lub luag haujlwm tseem ceeb hauv kev nplaum ntawm cov tshuaj khib rau cov khoom siv organic (EPS, extruded foam board) thiab du nto substrates. Cov zaj duab xis-forming polymer roj hmab hmoov yog muab faib thoob plaws hauv lub mortar system raws li ib tug ntxiv dag zog rau cov khoom kom muaj zog cohesion ntawm lub mortar.

3. 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 yog nce, thiab kev hnav tsis kam zoo tuaj. Nyob rau hauv qhov kev txiav txim ntawm sab nraud quab yuam, nws yuav tsim kev so tsis muaj kev puas tsuaj. Cov zaj duab xis polymer tuaj yeem nyob mus tas li nyob rau hauv lub tshuab mortar.

4. Txhim kho huab cua tiv thaiv thiab khov-thaw tiv thaiv ntawm mortar, thiab tiv thaiv mortar los ntawm kev tawg

Roj hmab hmoov yog cov thermoplastic resin nrog kev yooj yim zoo, uas tuaj yeem ua rau cov mortar tiv thaiv qhov kev hloov ntawm sab nraud txias thiab kub ib puag ncig, thiab zoo tiv thaiv cov mortar los ntawm kev tawg vim qhov kev hloov ntawm qhov kub thiab txias.

5. Txhim kho hydrophobicity ntawm mortar thiab txo qhov nqus dej

Cov hmoov latex tsim ib zaj duab xis ntawm cov kab noj hniav thiab qhov chaw, thiab cov yeeb yaj kiab polymer yuav tsis tawg dua tom qab raug dej, uas tiv thaiv kev nkag mus ntawm dej thiab txhim kho impermeability. Tshwj xeeb redispersible latex hmoov nrog cov nyhuv hydrophobic, zoo dua hydrophobic nyhuv.

6. Txhim kho kev ua haujlwm ntawm kev siv tshuaj khib nyiab

Muaj cov nyhuv lubricating ntawm cov khoom siv roj hmab polymer, kom cov tshuaj khib nyiab tuaj yeem ntws 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 ntawm cov mortar.