Redispersible polymer hmoov, tseem hu ua Rdp, yog ib qho tseem ceeb muaj nyob rau hauv zus tau tej cov waterproofing mortars. Vim nws cov txiaj ntsig zoo thiab cov khoom tshwj xeeb, nws siv tau nce nrov hauv kev tsim kho kev lag luam.
Waterproofing mortars feem ntau yog siv nyob rau hauv kev tsim kho tej yaam num uas feem ntau raug rau dej los yog lwm yam kua. Cov qauv xws li cov pas dej da dej, cov ciav dej, cov pas dej da dej thiab cov phab ntsa tuav yuav tsum muaj cov tshuaj tiv thaiv dej kom ntseeg tau tias lawv cov kav ntev, lub zog thiab lub neej ntev. Qhov sib ntxiv ntawm redispersible polymer hmoov muaj ntau qhov zoo dua li cov tshuaj khib nyiab sib xyaw.
Ib qho txiaj ntsig zoo ntawm Rdp hauv cov dej khib nyiab yog nws lub peev xwm los muab kev yooj yim thiab elasticity. Thaum Rdp hais sib tov rau hauv mortar, lawv tsim ib tug peb-seem network ntawm interconnected chains. Lub network no ua kom cov mortar hloov tau thiab pab tiv thaiv kev tawg thiab dej seepage. Qhov yooj ntawm cov tshuaj khib kuj tso cai rau nws kom zoo dua tiv thaiv kev hloov lossis txav ntawm cov qauv yam tsis muaj kev tawg.
Lwm qhov txiaj ntsig tseem ceeb ntawm redispersible polymer hmoov yog lawv cov khoom zoo dua qub. Ntxiv Rdp particles rau hauv mortar formulation txhim kho nws daim ntawv cog lus lub zog rau saum npoo nws yog pleev xim rau. Cov khoom siv polymer tsim cov ntawv cog lus muaj zog uas pab tiv thaiv cov dej seepage thiab txo qhov kev pheej hmoo ntawm kev puas tsuaj los ntawm lub voj voog khov-thaw - uas muaj ntau hauv cov qauv raug dej.
Ntxiv nrog rau kev muab kev yooj yim, elasticity thiab txhim kho adhesion, Rdp kuj tseem tiv taus tshuaj lom neeg thiab huab cua-vim degradation. Cov khoom siv tsis raug rau UV rays, huab cua kub lossis acidic compounds, ua rau nws zoo tagnrho rau siv rau hauv huab cua hnyav. Nws kuj yog dej-resistant, tiv thaiv kev loj hlob ntawm cov kab mob, pwm, thiab fungi.
Kev siv Rdp hauv cov dej khib nyiab tuaj yeem pab ua kom lub zog thiab lub neej ntev ntawm cov qauv. Qhov nce elasticity thiab yooj ntawm mortar formula txhim kho nws lub peev xwm los tiv thaiv kev ntxhov siab, txo qhov kev pheej hmoo ntawm kev tawg lossis tawg thaum lub sijhawm. Nws cov khoom sib txuas zoo ua kom cov mortar tseem txuas nrog rau saum npoo, muab kev tiv thaiv kev puas tsuaj rau cov dej ntev ntev.
Kev siv cov khoom siv rov ua dua tshiab ntawm cov hmoov polymer hauv cov dej khib nyiab tau dhau los ua cov tshuaj nrov hauv kev tsim kho kev lag luam. Nws muaj ntau yam txiaj ntsig tseem ceeb, suav nrog kev yoog raws, elasticity, txhim kho adhesion, thiab tiv thaiv cov tshuaj tiv thaiv thiab huab cua-vim degradation. Cov txiaj ntsig zoo no thaum kawg ua kom cov kav ntev thiab lub neej ntev ntawm cov qauv, ua rau nws yog cov khoom siv zoo heev rau kev siv dej tsis zoo. Zuag qhia tag nrho, kev siv Rdp hauv cov khoom siv dej tsis sib haum yog ib kauj ruam zoo rau kev tsim kom muaj kev nyab xeeb dua, muaj kev nyab xeeb dua thiab ruaj khov dua.
Post lub sij hawm: Oct-16-2023