Daim ntawv thov ntawm VAE RDP hmoov nyob rau hauv ntau yam mortars

1. Taw qhia:

Kev txhim kho hauv cov khoom siv hauv tsev tau ua rau kev txhim kho cov khoom siv ntxiv xws li redispersible polymer hmoov (RDP), uas ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua haujlwm ntawm lub tsev mortars. Ntawm ntau hom RDP, vinyl acetate-ethylene (VAE) RDP sawv tawm rau nws txoj kev ua tau zoo thiab ua haujlwm tau zoo hauv ntau hom tshuaj khib nyiab.

2. Yam ntxwv ntawm VAE RDP hmoov:

VAE RDP hmoov yog copolymerized los ntawm yas acetate thiab ethylene. Qhov no tsim cov hmoov zoo, dawb-ntws nrog zoo heev dispersibility hauv dej. Cov yam ntxwv tseem ceeb ntawm VAE RDP suav nrog cov ntawv cog lus siab, kev ua tau zoo thiab kev sib raug zoo nrog ntau yam khoom siv cementitious. Cov khoom no ua rau VAE RDP qhov zoo tshaj plaws ntxiv rau kev txhim kho kev ua haujlwm ntawm kev tsim kho mortars.

3. Daim ntawv thov ntawm VAE RDP nyob rau hauv ntau yam mortars:

3.1. Pobzeb nplaum:

VAE RDP txhim khu lub zog ntawm daim ntawv cog lus thiab hloov tau yooj yim ntawm cov nplais nplaum, ua rau muaj zog ntxiv thiab txo qhov tawg. Nws cov khoom tuav dej kuj pab txuas ntxiv lub sijhawm qhib, ua rau cov vuas yooj yim rau nruab.

3.2. Sab nrauv phab ntsa rwb thaiv tsev thiab ua tiav tshuab (EIFS):

Hauv EIFS, VAE RDP txhim kho lub cev tiv thaiv kev tawg thiab huab cua. Nws txhim kho cov primer qhov adhesion rau lub substrate thiab muab kev yooj yim kom haum rau thermal expansion thiab contraction.

3.3. Self-leveling underlayment:

VAE RDP txhim kho cov dej ntws thiab tus kheej theem ntawm cov liner. Nws txhim kho qhov smoothness thiab txo qhov shrinkage, muab ib qho zoo sib xws thiab ruaj khov rau hauv pem teb npog.

3.4. Patching mortars:

Hauv kev kho mortars, VAE RDP txhim kho daim ntawv cog lus muaj zog thiab kev sib koom ua ke, txhim kho cov kav ntev thiab kev ua haujlwm ntev ntawm kev kho. Nws kuj pab txhim kho kev ua haujlwm thiab txo cov permeability, yog li txhim kho kev tiv thaiv noo noo.

4. Qhov cuam tshuam ntawm VAE RDP ntawm kev ua haujlwm mortar:

4.1. Adhesion zog:

VAE RDP txhim kho kev sib raug zoo ntawm cov mortar thiab substrate, uas ua rau muaj kev sib koom ua ke muaj zog, ruaj khov dua. Nws tuaj yeem tsim cov yeeb yaj kiab hloov pauv ntawm qhov cuam tshuam los txhim kho adhesion nyob rau hauv ntau yam mob.

4.2. Kev tuav dej:

Cov dej tuav cov khoom ntawm VAE RDP ncua cov txheej txheem hydration, ua rau kev kho kom zoo dua qub thiab txhim kho cov khoom siv ntawm cov tshuaj khib nyiab. Qhov no ua kom pom kev ua haujlwm zoo thiab ua haujlwm ntev, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig hnyav.

4.3. Rheological zog:

VAE RDP tuaj yeem hloov pauv tus cwj pwm rheological ntawm mortars, txhim kho fluidity thiab ua haujlwm tau zoo. Nws txo qis kev sib cais thiab los ntshav thaum txhim kho adhesion, ua rau kev siv yooj yim dua thiab kev npaj zoo dua.

VAE RDP hmoov muaj peev xwm ua tau zoo hauv kev txhim kho kev ua haujlwm ntawm ntau yam mortars. Nws cov khoom tshwj xeeb pab txhim kho kev sib raug zoo, kev tuav dej thiab tus cwj pwm rheological, yog li optimizing mortar formulations thiab txhim kho durability thiab workability. Los ntawm kev nkag siab txog kev siv VAE RDP hauv ntau hom mortars, cov kws kho mob tuaj yeem siv nws cov txiaj ntsig kom ua tiav cov txiaj ntsig zoo tshaj plaws.