Hmoov Polymer uas yaj tau dua (RDP)yog ib qho hmoov polymer molecular siab, feem ntau yog ua los ntawm polymer emulsion los ntawm kev tsuag kom qhuav. Nws muaj cov yam ntxwv ntawm kev rov ua dua hauv dej thiab siv dav hauv kev tsim kho, txheej, nplaum thiab lwm yam teb. Lub tshuab ua haujlwm ntawm Redispersible Polymer Hmoov (RDP) feem ntau yog ua tiav los ntawm kev hloov kho cov ntaub ntawv raws li cement, txhim kho lub zog sib txuas, thiab txhim kho kev ua haujlwm ntawm kev tsim kho.
1. Cov khoom xyaw yooj yim thiab cov khoom ntawm Redispersible Polymer Hmoov (RDP)
Cov khoom xyaw tseem ceeb ntawm Redispersible Polymer Hmoov (RDP) yog polymer emulsion, uas feem ntau yog polymerized los ntawm monomers xws li acrylate, ethylene, thiab vinyl acetate. Cov polymer molecules no tsim cov khoom me me los ntawm emulsion polymerization. Thaum lub sijhawm ua kom qhuav, dej raug tshem tawm kom ua cov hmoov amorphous. Cov hmoov no tuaj yeem rov faib dua hauv dej kom tsim cov polymer dispersions ruaj khov.
Cov yam ntxwv tseem ceeb ntawm Redispersible Polymer Hmoov (RDP) suav nrog:
Kev yaj dej thiab kev tawg dua tshiab: Nws tuaj yeem tawg sai sai hauv dej los tsim cov polymer colloid sib xws.
Cov khoom siv lub cev zoo dua: Los ntawm kev ntxiv Redispersible Polymer Hmoov (RDP), lub zog sib txuas, lub zog tensile thiab kev cuam tshuam ntawm cov khoom xws li cov tshuaj pleev xim thiab cov tshuaj khib tau zoo dua.
Kev tiv taus huab cua thiab tshuaj lom neeg: Qee hom Redispersible Polymer Hmoov (RDP) muaj kev tiv taus zoo heev rau UV rays, dej thiab tshuaj lom neeg xeb.
2. Txoj kev ua haujlwm ntawm Redispersible Polymer Hmoov (RDP) hauv cov ntaub ntawv cement
Txhim kho lub zog sib txuas Lub luag haujlwm tseem ceeb uas Redispersible Polymer Hmoov (RDP) ua si hauv cov ntaub ntawv cement yog los txhim kho nws lub zog sib txuas. Kev sib cuam tshuam ntawm cov tshuaj nplaum cement thiab polymer dispersion system ua rau cov polymer particles kom zoo lo rau ntawm qhov chaw ntawm cov cement particles. Hauv microstructure ntawm cement tom qab hardening, polymer molecules txhim kho lub zog sib txuas ntawm cov cement particles los ntawm kev ua haujlwm interfacial, yog li txhim kho lub zog sib txuas thiab lub zog compressive ntawm cov ntaub ntawv cement.
Kev txhim kho qhov yooj ywm thiab kev tiv thaiv kab nrib pleb Redispersible Polymer Hmoov (RDP) tuaj yeem txhim kho qhov yooj ywm ntawm cov khoom siv cement. Thaum cov khoom siv cement raug ziab thiab tawv, cov polymer molecules hauv cov cement paste tuaj yeem tsim ib zaj duab xis los ua kom cov khoom siv tawv. Ua li no, cement mortar lossis concrete tsis yooj yim tawg thaum raug rau sab nraud, uas txhim kho kev tiv thaiv kab nrib pleb. Tsis tas li ntawd, kev tsim cov zaj duab xis polymer kuj tseem tuaj yeem txhim kho kev hloov pauv ntawm cov khoom siv cement rau qhov chaw sab nraud (xws li kev hloov pauv av noo, kev hloov pauv kub, thiab lwm yam).
Kev Kho Kom Zoo Dua Kev Ua Haujlwm Tsim Kho Kev ntxiv cov hmoov nplaum uas yaj tau dua kuj tseem tuaj yeem txhim kho kev ua haujlwm ntawm cov khoom siv cement. Piv txwv li, kev ntxiv cov hmoov nplaum uas yaj tau dua rau hauv cov av nplaum qhuav tuaj yeem txhim kho nws txoj kev ua haujlwm thiab ua rau cov txheej txheem tsim kho du dua. Tshwj xeeb tshaj yog nyob rau hauv cov txheej txheem xws li pleev xim rau phab ntsa thiab nplaum pobzeb, qhov dej ntws thiab khaws dej ntawm cov slurry tau txhim kho, zam kev ua tsis tiav ntawm kev sib txuas los ntawm kev ua dej ua ntej.
Txhim kho kev tiv thaiv dej thiab kev ruaj khov Kev tsim cov zaj duab xis polymer tuaj yeem tiv thaiv dej nkag mus, yog li txhim kho kev tiv thaiv dej ntawm cov khoom. Hauv qee qhov chaw noo noo lossis dej ntub, kev ntxiv cov polymers tuaj yeem ncua cov txheej txheem laus ntawm cov khoom siv cement thiab txhim kho lawv cov kev ua tau zoo mus sij hawm ntev. Tsis tas li ntawd, qhov muaj cov polymers kuj tseem tuaj yeem txhim kho cov khoom siv tiv thaiv te, kev tiv thaiv tshuaj lom neeg, thiab lwm yam, thiab ua kom lub tsev ruaj khov.
3. Daim ntawv thov ntawm Redispersible Polymer Hmoov (RDP) hauv lwm qhov chaw
Cov tshuaj khib qhuav Hauv cov tshuaj khib qhuav, ntxiv Redispersible Polymer Hmoov (RDP) tuaj yeem txhim kho qhov kev nplaum, kev tiv thaiv kev tawg thiab kev ua haujlwm ntawm cov tshuaj khib. Tshwj xeeb tshaj yog nyob rau hauv cov teb ntawm kev rwb thaiv tsev phab ntsa sab nraud, kev sib txuas pobzeb, thiab lwm yam, ntxiv Redispersible Polymer Hmoov (RDP) kom raug rau cov mis tshuaj khib qhuav tuaj yeem txhim kho qhov ua haujlwm tau zoo thiab kev tsim kho zoo ntawm cov khoom.
Cov txheej txheem architectural Redispersible Polymer Hmoov (RDP) tuaj yeem txhim kho qhov lo, tiv taus dej, tiv taus huab cua, thiab lwm yam ntawm cov txheej txheem architectural, tshwj xeeb tshaj yog hauv cov txheej txheem uas muaj kev ua tau zoo xws li cov txheej txheem phab ntsa sab nraud thiab cov txheej txheem hauv pem teb. Ntxiv Redispersible Polymer Hmoov (RDP) tuaj yeem txhim kho nws cov zaj duab xis thiab kev nplaum thiab txuas ntxiv lub neej ua haujlwm ntawm cov txheej txheem.
Cov Nplaum Hauv qee cov khoom nplaum tshwj xeeb, xws li cov nplaum pobzeb, cov nplaum gypsum, thiab lwm yam, ntxiv Redispersible Polymer Hmoov (RDP) tuaj yeem txhim kho lub zog sib txuas thiab txhim kho qhov siv tau thiab kev ua haujlwm ntawm cov nplaum.
Cov Khoom Siv Tiv Thaiv Dej Hauv cov khoom siv tiv thaiv dej, kev ntxiv cov polymers tuaj yeem tsim ib txheej zaj duab xis ruaj khov, tiv thaiv dej nkag mus, thiab txhim kho kev ua haujlwm tiv thaiv dej. Tshwj xeeb tshaj yog nyob rau hauv qee qhov chaw muaj kev thov siab (xws li kev tiv thaiv dej hauv qab nthab, kev tiv thaiv dej ntawm lub ru tsev, thiab lwm yam), kev siv Redispersible Polymer Hmoov (RDP) tuaj yeem txhim kho qhov cuam tshuam ntawm kev tiv thaiv dej.
Lub mechanism ntawm kev ua haujlwm ntawmRDP, feem ntau los ntawm nws cov yam ntxwv ntawm kev tawg dua thiab cov yam ntxwv ntawm cov yeeb yaj kiab polymer, muab ntau yam haujlwm hauv cov ntaub ntawv cement, xws li txhim kho lub zog sib txuas, txhim kho kev ywj pheej, txhim kho kev tiv thaiv dej, thiab kho qhov kev ua tau zoo ntawm kev tsim kho. Tsis tas li ntawd, nws kuj qhia tau tias muaj kev ua tau zoo heev hauv cov teb ntawm cov mortar sib xyaw qhuav, cov txheej txheem vaj tse, cov nplaum, cov ntaub ntawv tiv thaiv dej, thiab lwm yam. Yog li ntawd, kev siv Redispersible Polymer Hmoov (RDP) hauv cov ntaub ntawv tsim kho niaj hnub no yog qhov tseem ceeb heev.
Lub sijhawm tshaj tawm: Lub Ob Hlis-17-2025