Redispersible polymer hmoov (RDP)Yog cov hmoov av molecer siab, feem ntau yog tsim los ntawm polymer emulsion los ntawm cov tshuaj pleev kom qhuav. Nws muaj cov cuab yeej ntawm redispersibility hauv dej thiab yog dav siv nyob rau hauv kev tsim kho, cov xim nplaum, cov nplaum thiab lwm thaj teb. Lub tshuab ntawm kev ua ntawm redispersible polymer hmoov (RDP) yog qhov ua tiav los ntawm kev kho cov khoom noj kom haum, txhim kho kev sib raug zoo lub zog, thiab txhim kho kev tsim kho.
1. Cov khoom lag luam yooj yim thiab cov khoom ntawm cov liab liab polymer hmoov (RDP)
Qhov yooj yim sib xyaw ntawm recispersible polymer hmoov (RDP) yog polymer emulsion, uas feem ntau yog polomers xws li acrylate, ethylene, thiab vinyl acetate. Cov polymer molecules ua cov nplais zoo los ntawm emulsion polymerization. Thaum lub sij hawm cov tshuaj tsuag cov txheej txheem kom qhuav, dej raug tshem tawm los ua cov hmoov zoo. Cov hmoov no tuaj yeem raug muab rov qab rau hauv dej los ua cov polymer ruaj khov txawv.
Cov yam ntxwv tseem ceeb ntawm Redispersible polymer hmoov (RDP) suav nrog:
Dej solubility thiab recispersibility: nws tuaj yeem tau nrawm nrawm hauv dej los ua cov ris tsho polymer colloid.
Txhim kho lub cev lub cev: los ntawm kev ntxiv recispersible polymer hmoov (RDP), kev cuam tshuam tsis zoo thiab kev cuam tshuam ntawm cov txheej thiab cov nplua nuj tau txhim kho.
Huab cua tiv thaiv thiab cov tshuaj tiv thaiv: qee hom redispersible polymer hmoov (RDP) muaj kev tiv thaiv UV UV, dej thiab tshuaj lom neeg corrosion.
2. Mechanism ntawm kev ua ntawm recispersible polymer hmoov (RDP) hauv cov khoom siv CAs-basent
Txhim kho cov neeg sib raug zoo lub zog tseem ceeb ua si los ntawm cov ntaub ntawv recispersible polymer (RDP) hauv cov Maas-based cov ntaub ntawv yog los txhim kho nws txoj kev sib raug zoo. Qhov kev sib cuam tshuam nruab nrab ntawm Maas muab tshuaj pleev thiab polymer dispersion system ua kom zoo rau kev ua kom zoo rau sab saum toj ntawm cov xis. Nyob rau hauv microstructure ntawm cov cement tom qab ua kom tawv tawv, polymer molecules txhim kho lub zog sib txuam, yog li txhim kho cov khoom sib txuam ntawm cov khoom sib txuam thiab lub zog compressive ntawm cov khoom siv xis mas.
Txhim kho kev hloov pauv thiab tawg tsis kam rigispersible polymer hmoov (RDP) tuaj yeem txhim kho cov khoom siv yooj yim ntawm cov ntxhib-based cov ntaub ntawv. Thaum cov ntaub ntawv tso cai; Nyob rau hauv txoj kev no, xis mas cov pob zeb ua tsis yog tus yuam kev thaum raug rau sab nraud cov rog, uas txhim kho kev tawg. Tsis tas li ntawd, kev tsim cov yeeb yaj kiab polymer kuj tseem tuaj yeem txhim kho cov khoom siv tau ntawm cov chaw nyob sab nraud (xws li cov av noo hloov, hloov qhov kub thiab lwm yam).
Kho cov khoom siv kev tsim kho ntawm cov kua nplaum sib ntxiv kuj tseem tuaj yeem txhim kho kev tsim kho kev tsim kho ntawm cov khoom noj cov khoom noj. Piv txwv li, ntxiv cov kua nplaum recispersible cov hmoov nplej kom qhuav-sib nphua tuaj yeem txhim kho nws txoj kev ua haujlwm thiab ua kom cov txheej txheem kev tsim kho. Tshwj xeeb tshaj yog nyob rau hauv cov txheej txheem xws li phab ntsa pleev duab thiab cov dej ua kom huv si ntawm cov slurry yog txhim kho, zam kev ua tsis tiav tshwm sim los ntawm kev ua kom ntxov ntxov.
Txhim kho cov dej tsis kam thiab ruaj khov ua yeeb yaj kiab ua tau zoo tiv thaiv kev nkag mus rau cov dej tsis kam ntawm cov khoom. Hauv qee qhov chaw noo noo lossis dej noo noo, ntxiv rau cov polymers tuaj yeem ncua cov ntaub ntawv laus ntawm cov khoom noj ua kom zoo nkauj thiab txhim kho lawv qhov kev ua tau zoo mus sij hawm ntev. Tsis tas li ntawd, muaj cov polymers tseem tuaj yeem txhim kho cov khoom siv lub zog khov ua, tshuaj lom neeg tiv taus lub tsev.
3. Daim ntawv thov ntawm Redispersible polymer hmoov (RDP) hauv lwm daim teb
Cov tshuaj khib qhuav hauv cov tshuaj khib nyiab qhuav, ntxiv rau ntawm cov hmoov nplej polymer (RDP) tuaj yeem txhim kho cov nplaum, tawg kom ua haujlwm ntawm lub tshuaj khib. Rwb teb rau sab nrauv phab ntsa rwb thaiv tsev kev ua haujlwm, thiab lwm yam.
Cov Khoom Siv Hluav Taws Xob Polymer, huab cua tsis zoo, thiab lwm yam ntawm cov txheej txheem ntawm phab ntsa sab nrauv thiab cov txheej txheem sab nrauv. Ntxiv cov liab recispersible polymer hmoov (RDP) tuaj yeem txhim kho nws zaj duab xis thiab cov nplaum thiab txuas ntxiv lub neej ntawm txheej.
Cov nplaum nyob hauv qee cov khoom nplaum tshwj xeeb, xws li cov nplaum nplaum, thiab lwm yam, ntxiv, ntxiv rau cov khoom siv hluav taws xob thiab txhim kho cov khoom lag luam thiab kev tsim kho ntawm cov nplaum.
Cov ntaub ntawv tsis muaj dej hauv cov khoom siv dej tsis huv, ntxiv rau cov duab polymers tuaj yeem tsim cov yeeb yaj kiab ruaj khov, thiab tiv thaiv kev nkag mus rau kev nkag mus. Tshwj xeeb tshaj yog nyob rau hauv qee qhov chaw xav tau siab (xws li Basement Waterproofing, etcer waterproofing, thiab lwm yam) tuaj yeem txhim kho cov nyhuv waterproofing.
Lub tshuab ntawm kev ua ntawmRdp, mainly through its redispersibility and polymer film-forming characteristics, provides multiple functions in cement-based materials, such as enhancing bonding strength, improving flexibility, improving water resistance, and adjusting construction performance. Tsis tas li ntawd, nws tseem qhia tau zoo heev hauv kev ua yeeb yam ntawm cov khoom sib xyaw qhuav, cov khoom siv tsis zoo, thiab lwm yam khoom tseem ceeb (RDP) hauv cov khoom siv hluav taws xob zoo nkauj yog qhov tseem ceeb niaj hnub.
Lub Sijhawm Post: Feb-17-2025