Redispersible looj hmoov (RDP) yog ib qho tseem ceeb ntxiv nyob rau hauv ntau yam kev tsim kho cov khoom siv nyob rau hauv cov nqe lus ntawm kev hloov pauv tau, kev ua haujlwm zoo nkauj, thiab ua haujlwm. Nws yog dav siv hauv kev sib xyaw qhuav xws li cov khoom noj khoom haus cement, plasters, cov nplaum, thiab lwm yam.
Dab tsi yog redispersible looj hmoov?
Redispersible looj-hmoov yog dej-soluble, hmoov daim ntawv ntawm polymer looj roj uas tuaj yeem rov qab tau yooj yim hauv dej. Nws yog feem ntau ua los ntawm tshuaj tsuag-qhuav emulsions ntawm cov hluavtaws hluavtaws xws li styreiene-butteriyl acetate (PVA), acryylics-vinyl acetate (EVA). Raws li kev sib xyaw nrog dej, cov hmoov ua cov mis milksion, uas ua raws li cov binder mortars, muab cov khoom lag luam zoo dua piv rau cov khoom lag luam.
Cov yam ntxwv tseem ceeb ntawm redispersible looj hmoov
Dej Tsis kam: Cov polymer hais hauv cov xim liab ntxiv pab txhim kho cov dej tsis kam txhim kho cov khoom kawg. Thaum cov hmoov yog sib xyaw nrog cov cement lossis lwm cov khoom siv qhuav, cov tshuaj yas raws li kev thaiv dej tawm tsam, ua cug lossis cov nplaum kom ntev dua thiab ntev ntev.
Txhim kho cov txiaj ntsig: ib qho ntawm cov txiaj ntsig tseem ceeb tshaj plaws ntawm kev siv cov hmoov zoo ntawm cov khoom siv tau yooj yim ntawm qhov yooj yim ntawm cov ntaub ntawv nws tau ntxiv rau. Maas thiab Plaster tuaj yeem nkag tau rau hauv cov khoom siv, tab sis ntxiv rau ntawm RDP ua rau cov khoom siv no yooj yim thiab muaj peev xwm tiv thaiv kev txav mus los tsis muaj kev tawg. Qhov no yog tshwj xeeb yog qhov tshwj xeeb tshaj yog nyob rau hauv cov cheeb tsam uas yog thermal nthuav dav, cog lus, lossis cov txheej txheem kev teeb tsa me.
Nce adhesion: RDP tseem ceeb txhim kho cov khoom siv tshiab ntawm cov khoom siv tsim kho, tshwj xeeb tshaj yog nyob rau hauv cov nplaum nplaum, plaster, thiab phab ntsa txheej ntsa. Cov polymer hais ua ib qho kev sib raug zoo ntawm cov txheej txheem thiab cov khoom siv uas cov khoom siv nyob hauv lub sijhawm ntev dua.
Kev ua haujlwm tau zoo: Cov hmoov looj recispersible looj hmoov txhim kho cov khoom siv ua haujlwm, ua rau lawv sib xyaw, kis, thiab siv. Nws txhim kho cov khoom ntws, txo qhov tsim ntawm cov qog, thiab pab tsim kom muaj cov smoother ua tiav rau saum npoo. Qhov txiaj ntsig no ua rau muaj kev nce ntxiv thaum lub sijhawm ua ntawv thov.
Mechanical zog: qhov txuam nrog redispersible looj hmoov tuaj yeem nce cov neeg kho tshuab lub zog ntawm cov khoom siv. Qhov no suav nrog kev txhim kho hauv lub zog tensile, khoov rau lub zog, thiab cuam tshuam kev cuam tshuam. Thaum siv nyob rau hauv cov xis ntsawj ntsha sib tov, nws tuaj yeem pab txhim kho kom tau kev sib raug zoo lub zog thiab cov qauv sib xws ntawm tus qauv kawg.
Cohesion thiab durability: RDP txhim kho cov cohesion nruab nrab ntawm phau ntawv (xws li MAAs) thiab cov khoom siv hauv cov khoom tsim kho. Cov cohesion txhim kho no pab kom txo qis av thiab lub peev xwm rau qhov degradation. Lub durability ntawm cov dej sib tov kuj nce nyob rau hauv ib puag ncig kev nyuaj siab xws li cov av noo, qhov cua hloov pauv, thiab hnav.
Cov ntawv thov ntawm Redispersible looj hmoov
Cov versatility ntawm redispersible looj hmoov ua rau nws muaj txiaj ntsig zoo nyob rau hauv ntau cov ntawv thov hauv kev tsim kho thiab lub tsev cov khoom siv. Nov yog qee qhov ntawm thaj chaw uas muaj RDP feem ntau siv:
1. Pobzeb Adhesives thiab Grouts
Redispersible looj Xas tau dav siv nyob rau hauv cov nplais nplaum, grouts, thiab cov nplais teeb Mortars. Nws txhim kho cov nplaum nplaum thiab muab kev ua haujlwm zoo dua, ua rau nws rov kis tau yooj yim thiab tswj thaum lub sij hawm teeb tsa. Ntxiv nrog rau kev txhim kho cov nplaum rau ntau qhov chaw, nws pab kom cov vuas ua kom tsis txhob poob sijhawm vim yog dej raug. Tsis tas li ntawd, RDP kuj hloov kho tau ntawm cov nplaum, txo txoj kev pheej hmoo ntawm kev tawg hauv qab kub hloov pauv lossis txav kev txav.
2. Cov tshuaj ntsuab thiab cov khoom plaster
Hauv cov txheej txheem plaster thiab render, recispersible looj hmoov txhim kho qhov yooj thiab ua kom muaj zog ntawm kev sib xyaw. Qhov no yog qhov tshwj xeeb tshaj yog nyob rau sab nraud ntawm phab ntsa sab nraud, raws li nws tiv thaiv kev tawg vim muaj kev nthuav dav lossis kev cog lus ntawm lub tsev cov khoom. RDP tuaj yeem siv rau hauv ob sab hauv thiab sab nrauv plaster, txhim kho qhov tsis kam ntawm saum npoo kom noo, thiab pab txhawb kom zoo dua nto smoothness.
3. Kev ua tus kheej sib txuas
Redispersible looj cov hmoov yog siv nyob rau hauv kev ntsuas tus kheej sib txuas los txhim kho lawv cov wubmibility thiab hloov tau. Cov tebchaw feem ntau yog siv rau ntawm cov plag tsev los tsim cov chaw du, theem rau cov vuas txuas ntxiv (piv txwv li cov vuas, ntaub pua av, lossis yas). RDP kom ntseeg tau tias qhov sib xyaw ua ke yog yooj yim rau kev thov, nrog txhim kho kev sib raug zoo rau cov substrate thiab txo cov kev tawg tag lub sijhawm.
4. Ob leeg sib koom tes thiab xov xwm
Qhov hloov tau yooj yim thiab dej tsis kam muab los ntawm redispersible ligxpowder ua nws yog qhov tseem ceeb hauv kev sib koom ua ke thiab cov tshuaj pleev. Cov khoom no yog siv los sau qhov khoob ntawm cov ntaub ntawv ntawm cov ntaub ntawv, muab lub ntsuas phoo ruaj khov, muab cov tuaj yeem tiv taus kev sib tw thiab ya raws. Piv txwv li, nyob rau hauv cov pob qij txha nthuav dav ntawm cov plag tsev lossis phab ntsa, kev siv RDP tso cai rau lub foob tseg kom muaj qhov ua tsis tau nws ua tiav.
5. Cov khoom noj kom qhuav
Redispersible looj cov hmoov feem ntau ua rau cov qauv sib xyaw ua ke, uas yog cov tshuaj plastering ntau yam xws li plastering, ua haujlwm, thiab masonry ua haujlwm. Cov polymer txhim kho cov kev ua tau zoo ntawm cov qhuav los ntawm kev txhim kho adhesion, dej tsis kam, thiab kev ua haujlwm tau zoo, uas tau ua tiav ntev dua.
6. Kho thiab Kev Kho Dua Tshiab
Hauv kev kho cov neeg nplua nuj uas siv rau kev rov ua kom zoo dua lossis masonry, recispersible looj hmoov zoo nkauj thiab ua kom ntev. Cov hmoov pab txhawb kev sib tw ua kom ruaj khov rau cov neeg laus lossis cov khoom siv kho kom haum rau qhov kev ntxhov siab, ua kom tau kev kho kom ntev dua.
7. Waterproofing Systems
Hauv kev siv cov dej tsis muaj zog, cov dej rov ua kom zoo li cov dej ntws tawm los ua kom cov dej ntws tawm thiab cov nplaum ntawm daim nyias nyias lossis txheej. Nws yog feem ntau siv hauv kev sib xyaw nrog lwm cov ntaub ntawv xws li cov khoom siv dej tsis zoo, qhov twg nws yuav pab ua cov txheej txheem dej ntau ntxiv uas tiv taus cov dej hiav txwv noo noo.
8. Flooring Systems
RDP tseem yog qhov tseem ceeb ntxiv hauv cov tshuab flaming, suav nrog cov siv hauv kev lag luam, ua lag luam, thiab ib puag ncig ib puag ncig. Nws txhim kho daim ntawv cog lus ntawm cov ntaub ntawv flooring thiab cov substrate, nce lub zog ntawm cov flooring, thiab muab ntau dua kev cuam tshuam rau kev cuam tshuam thiab hnav. Ib qho ntxiv, nws yuav pab hauv cov ntawv thov tau yooj yim thiab ua tiav du ntawm cov txheej txheem pem teb.
9. Sab nrauv rwb thaiv tsev thiab cov tshuab sau tiav (EIFS)
Nyob rau hauv EIFS, RDP pabcuam txhim kho txoj kev sib khi ntawm cov txheej txheem rwb thaiv tsev thiab lub hauv paus pib, muab cov khoom tawg. Cov polymer-hloov pauv lub tsho loj ua kom tag nrho cov txheej txheem tuaj yeem tiv thaiv kev nthuav dav thiab kev cog lus, nrog rau ib puag ncig sab nraud xws li kev kub thiab noo.
Redispersible looj hmoov looj thiab tsis tseem ceeb ntxiv hauv kev tsim kho niaj hnub. Los ntawm kev txhim kho cov dej tsis kam, yoog raws, ua kom muaj zog, thiab muaj zog dua, nws ua tau zoo dua li cov khoom siv tsim kho. Nws cov ntawv thov ncua los ntawm cov pobzeb cov nplaum rau cov dej tsis muaj dej, cov plasters, thiab kev sib txuas lus tus kheej. Raws li qhov tshwm sim, RDP tau dhau los ua cov khoom tseem ceeb hauv kev txhim kho lub ruaj khov, cov khoom lag luam zoo tsev rau ob qho chaw nyob thiab kev ua lag luam.
Lub Sijhawm Post: Feb-20-2025