Redispersible polymer hmoov (RDP) yog ib qho tseem ceeb polymer additive siv los txhim kho cov kev ua tau zoo ntawm cov cement-based, gypsum-based, txiv qaub-raws li thiab cov ntaub ntawv txiv qaub-mortar-based. RDP txhim kho kev ua tau zoo ntawm cov ntaub ntawv no los ntawm nws txoj kev sib txuas, kev txhim kho, tawg tsis kam, dej tsis kam, thiab lwm yam, thiab siv dav hauv cov khoom siv hauv tsev.
Yam tseem ceeb ntawm RDP
Cov hom RDP feem ntau yog cais raws li hom substrate lawv tsim, daim ntawv thov teb thiab cov yam ntxwv ua haujlwm. Feem ntau RDPs suav nrog cov hauv qab no:
Ethylene-vinyl acetate copolymer (EVA) hom:
Nta: Ethylene-vinyl acetate copolymer yog ib qho ntawm ntau hom RDP. Nws muaj qhov yooj yooj yim thiab adhesion, thiab muab cov dej tsis zoo thiab huab cua tsis kam.
Daim ntawv thov: Feem ntau yog siv rau hauv cov pobzeb nplaum, cov ntaub ntawv hauv pem teb tus kheej, sab nrauv phab ntsa rwb thaiv tsev thiab lwm yam.
Qhov zoo: Nws muab zoo toughness thiab saj zawg zog, haum rau lub sij hawm xav tau tej yam yooj thiab adhesion.
Qhov tsis zoo: Vim nws cov ntsiab lus ethylene siab, nws qhov kev ua tau zoo yuav ua rau me ntsis tsis txaus nyob rau hauv qee qhov kev siv nrog lub zog siab.
Ethylene-vinyl acetate-vinyl acetate terpolymer (VeoVa / EVA) hom:
Nta: Hom RDP no qhia txog VeoVa (vinyl ester) raws li ethylene thiab vinyl acetate copolymerization, uas txhim kho cov dej tsis kam thiab tshuaj lom neeg ruaj khov ntawm cov khoom.
Daim ntawv thov: Feem ntau siv rau sab nrauv phab ntsa coatings thiab gypsum khoom, thiab lwm yam.
Qhov zoo: Nws muaj cov dej tsis zoo thiab cov tshuaj tiv thaiv, haum rau kev siv sab nraum zoov thiab tshuaj lom neeg hnyav.
Qhov tsis zoo: Piv nrog EVA hom, tus nqi yuav siab dua me ntsis.
Styrene-butadiene copolymer (SB) hom:
Nta: Nws yog tsim los ntawm styrene thiab butadiene monomers, thiab muaj cov khoom sib txuas zoo, yoog raws thiab dej tsis kam.
Daim ntawv thov: Feem ntau siv rau hauv cov nplais nplaum thiab hloov tau yooj yim putties.
Qhov zoo: Kev sib raug zoo thiab kev yoog raws, thiab kev ua haujlwm zoo hauv dej tsis kam.
Disadvantages: Tej zaum yuav muaj hnub nyoog nyob rau hauv ultraviolet lub teeb.
Vinyl acetate-ethylene copolymer (VAE) hom:
Nta: Nws yog ib qho copolymer ntawm vinyl acetate thiab ethylene, nrog kev yooj yim heev thiab dej tsis kam.
Daim ntawv thov: Nws yog tsim rau cov nplais nplaum, sab nrauv phab ntsa rwb thaiv tsev, gypsum-based self-leveling, thiab lwm yam.
Qhov zoo: Nws muab cov adhesion zoo thiab dej tsis kam, thiab muaj qee yam tshuaj tiv thaiv.
Disadvantages: Tus nqi kuj yog siab heev.
Acrylic copolymer (Acrylic) hom:
Nta: Lub ntsiab tivthaiv yog acrylic ester, uas muaj zoo adhesion thiab yooj.
Daim ntawv thov: Nws yog dav siv nyob rau hauv cov hniav mortar, pobzeb adhesives, gypsum thiab lwm yam ntaub ntawv.
Qhov zoo: Cov nplaum zoo heev thiab yoog raws, thiab zoo heev UV tsis kam.
Qhov tsis zoo: Vim yog tus nqi siab ntawm cov khoom siv acrylic, tus nqi ntawm hom RDP no kuj siab.
Kev ua haujlwm thiab kev siv ntawm RDP
Txhim kho kev sib txuas ua haujlwm:
RDP plays lub luag haujlwm txuas hauv cov khoom siv, txhim kho cov nplaum nplaum, thiab txhim kho kev sib txuas ntawm cov khoom siv hauv tsev thiab cov substrate.
Daim ntawv thov muaj xws li cov pobzeb nplaum, cov nplaum nplaum, thiab lwm yam.
Txhim khu kev yooj yim thiab tawg tsis kam: Los ntawm kev ntxiv RDP, qhov hloov pauv ntawm cov khoom siv tau zoo dua qub, uas pab tiv thaiv qhov tshwm sim ntawm cov kab nrib pleb.
Feem ntau siv nyob rau hauv rwb thaiv tsev tshuab, hloov tau yooj yim putty, kho cov ntaub ntawv, thiab lwm yam.
Txhim kho dej tsis kam thiab dej tsis kam:
RDP txhim kho cov dej tsis kam ntawm cov khoom siv, tso cai rau nws tswj kev ua haujlwm ruaj khov hauv qhov chaw ntub dej.
Applied nyob rau hauv waterproof txheej, sab nrauv phab ntsa txheej, thiab lwm yam.
Txhim kho kev tsim kho kev ua haujlwm:
RDP tuaj yeem txhim kho kev tsim kho ntawm cov khoom siv hmoov qhuav, ua kom kev tsim kho yooj yim dua thiab ua haujlwm zoo dua.
Dav siv nyob rau hauv tus kheej-leveling cov ntaub ntawv hauv pem teb, coatings, thiab lwm yam.
Txhim kho durability thiab huab cua tsis kam: Vim yog qhov sib ntxiv ntawm RDP, qhov ua haujlwm ntev thiab huab cua tsis kam ntawm cov khoom siv tau zoo heev, thiab nws tuaj yeem tiv taus qhov kev sim ntawm qhov hnyav.
Siv rau sab nrauv phab ntsa, ru tsev txheej, thiab lwm yam.
Kev txiav txim siab rau kev xaiv RDP tsim nyog
Daim ntawv thov scenarios:
Xaiv hom RDP tsim nyog raws li qhov tshwj xeeb daim ntawv thov scenario, piv txwv li, cov ntawv thov sab nraum zoov xav tau RDP nrog huab cua tsis zoo.
Kev tswj tus nqi:
Nyob rau ntawm qhov chaw ntawm kev ua kom muaj kev ua tau zoo, nws yog ib qho tsim nyog yuav tsum xav txog cov khoom siv thiab xaiv RDP kev lag luam.
Compatibility:
RDP yuav tsum tau zoo sib xws nrog lwm cov ntaub ntawv los xyuas kom meej qhov ruaj khov thiab kev ua tau zoo sib xws ntawm kev sib tov.
Cov kev xav tau ntawm kev ua haujlwm:
Xaiv hom RDP tsim nyog raws li cov khoom xav tau (xws li yoog raws, adhesion, dej tsis kam, thiab lwm yam).
Redispersible latex hmoov plays lub luag haujlwm tseem ceeb hauv cov khoom siv hauv tsev niaj hnub, thiab nws ntau hom muab cov kev daws teeb meem yooj yim rau ntau yam kev tsim kho. Xaiv hom RDP tsim nyog tuaj yeem txhim kho kev ua tau zoo ntawm cov khoom siv hauv tsev, yog li txhim kho qhov zoo thiab ua haujlwm ntev ntawm kev tsim kho.
Post lub sij hawm: Jul-05-2024