(1 Kev Taw Qhia
Redispersible Polymer Powder (RDP) yog cov hloov pauv polymer hmoov uas tuaj yeem hloov pauv mus rau hauv emulsion thaum raug dej. Nws yog tsim los ntawm kev ziab kom qhuav thiab yog tsim los ntawm cov ntaub ntawv hauv paus xws li ethylene vinyl acetate (VAE), acrylate copolymer thiab styrene-butadiene. Hauv kev tsim kho kev lag luam, RDP tau dhau los ua ib qho tseem ceeb ntxiv thiab tau siv dav hauv cov cement-based thiab gypsum-based cov ntaub ntawv, cov mortars qhuav, ceramic pobzeb adhesives, self-leveling flooring, sab nrauv phab ntsa rwb thaiv tsev thiab lwm yam teb.
(2) Txhim kho kev sib raug zoo
1. Txhim kho adhesion ntawm substrates
Thaum RDP siv rau hauv cov cement-based thiab gypsum-based cov ntaub ntawv, nws tuaj yeem txhim kho cov khoom sib txuas ntawm cov ntaub ntawv. Qhov no yog vim hais tias RDP tuaj yeem rov ua dua los ua ib qho emulsion thaum lub sij hawm hydration cov tshuaj tiv thaiv, yog li tsim ib tug zoo polymer zaj duab xis nyob rau saum npoo ntawm substrate. Cov yeeb yaj kiab no tuaj yeem nkag mus rau hauv qhov pores thiab micro-kawg ntawm lub substrate thiab txhim khu kev sib txuas ntawm cov khoom siv sib txuas ntawm cov substrates, yog li txhim kho cov kev sib raug zoo.
2. Txhim kho lub zog sib txuas ntawm cov txheej txheem
Hauv kev siv ntau txheej, xws li cov plag tsev tus kheej, cov txheej txheem plaster, thiab lwm yam, RDP tuaj yeem txhim kho cov txheej txheem sib txuas ua ke thiab tsis txhob cuam tshuam cov txheej txheem sib tsoo. Los ntawm kev tsim cov txheej txheem polymer muaj zog, nws ua kom muaj kev sib raug zoo ntawm cov txheej txheem sib txawv thiab muab cov qauv ruaj khov dua.
(3) Txhim kho qhov tawg tsis kam thiab yoog raws ntawm cov khoom siv
1. Txo qhov tshwm sim ntawm cov kab nrib pleb
Thaum lub sij hawm hardening txheej txheem, cov ntaub ntawv cement-raws li yuav ua rau shrinkage tawg vim dej evaporation thiab kub hloov. Qhov sib ntxiv ntawm RDP tuaj yeem txo qhov tshwm sim ntawm cov kab nrib pleb. Cov zaj duab xis polymer tsim los ntawm RDP tom qab hardening tuaj yeem nqus tau thiab txo qhov kev ntxhov siab ntawm cov khoom thiab txo qhov tshwm sim ntawm cov kab nrib pleb. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog rau sab nrauv phab ntsa rwb thaiv tsev thiab cov nplais nplaum, vim tias cov ntawv thov no ntsib qhov sib txawv ntawm qhov kub thiab txias.
2. Txhim kho qhov hloov pauv ntawm cov ntaub ntawv
Cov khoom siv hauv tsev yuav tsum muaj qee qhov kev hloov pauv thaum lub sijhawm tsim kho thiab siv los hloov kho me me ntawm cov khoom siv hauv paus yam tsis muaj kev tawg. RDP tuaj yeem txhim kho qhov yooj yim ntawm cov khoom, tso cai rau cov khoom kom muaj peev xwm deformation nyob rau hauv qhov kev txiav txim ntawm sab nraud quab yuam yam tsis muaj kev puas tsuaj, yog li txuas ntxiv lub neej kev pab cuam ntawm cov khoom.
(4) Txhim kho kev tsim kho kev ua haujlwm
1. Txhim kho kev tsim kho yooj yim
RDP tuaj yeem txhim kho kev tsim kho kev ua haujlwm ntawm mortar qhuav. Nws tuaj yeem ua kom cov dej ntws thiab ua haujlwm ntawm cov tshuaj khib nyiab, ua kom yooj yim rau kev sib xyaw, sib kis thiab qib. Qhov no yog ib qho tseem ceeb tshwj xeeb tshaj yog rau cov pobzeb nplaum thiab plaster coats uas yuav tsum tau siv ilv.
2. Txuas sijhawm qhib
Thaum lub sijhawm tsim kho, lub sijhawm qhib ntawm cov khoom siv (uas yog, lub sijhawm cov khoom siv nyob rau hauv lub xeev ua haujlwm tau zoo) yog qhov tseem ceeb heev. RDP tuaj yeem txuas ntxiv lub sijhawm qhib los ntawm kev kho cov dej noo ntawm cov mortar, muab sijhawm rau cov neeg ua haujlwm tsim kho thiab kho, thiab txhim kho kev tsim kho.
(5) Txhim kho durability thiab tshuaj corrosion kuj
1. Txhim khu kev tiv thaiv dej
RDP tuaj yeem txhim kho cov dej tsis kam ntawm cov khoom siv cement. Nws ua cov yeeb yaj kiab dense polymer zaj duab xis nyob rau ntawm cov khoom kom txo cov kev nkag mus thiab nqus dej noo thiab zam cov khoom ua rau muaj kev ua phem tshwm sim los ntawm ya raws. Cov cuab yeej no yog qhov tseem ceeb tshwj xeeb rau cov khoom siv uas raug rau cov dej noo mus ntev.
2. Txhim kho cov tshuaj tiv thaiv corrosion
Cov khoom siv hauv tsev yuav raug rau ntau yam tshuaj lom neeg thaum siv, xws li acids, alkalis, ntsev, thiab lwm yam. RDP tuaj yeem txhim kho cov khoom siv tshuaj tiv thaiv corrosion thiab txo cov corrosion ntawm cov ntaub ntawv los ntawm cov khoom siv tshuaj, yog li ncua kev pab cuam lub neej ntawm cov khoom. Qhov no yog qhov tseem ceeb tshwj xeeb rau kev siv xws li sab nrauv phab ntsa rwb thaiv tsev thiab cov khoom siv hauv tsev.
(6) Environmental friendliness
1. Txo kev cuam tshuam ib puag ncig
Raws li ib puag ncig tus phooj ywg cov ntaub ntawv, RDP cov txheej txheem ntau lawm yog ib puag ncig tus phooj ywg thiab tuaj yeem txo cov pa phem ib puag ncig. Tsis tas li ntawd, nws tuaj yeem txo cov khoom tawg thiab kev puas tsuaj thaum siv, yog li txo qhov zaus ntawm kev kho thiab hloov, thiab txo qis cov khoom siv thiab ib puag ncig lub nra.
2. Txo cov hluav taws xob tsis zoo (VOC) emissions
Raws li cov khoom lag luam tsis muaj kuab tshuaj, RDP tuaj yeem txo qhov tsis zoo ntawm cov organic sib txuas (VOC) emissions hauv cov khoom siv hauv tsev, uas tsis tsuas yog ua tau raws li kev tiv thaiv ib puag ncig, tab sis kuj txhim kho huab cua zoo ntawm qhov chaw tsim kho.
(7) Cov txiaj ntsig nyiaj txiag
1. Txo cov nqi tag nrho
Txawm hais tias RDP nws tus kheej tuaj yeem ntxiv qee tus nqi ntawm cov khoom siv, los ntawm kev txhim kho kev ua haujlwm thiab kev ua haujlwm ntev ntawm cov khoom, tus nqi kho thiab hloov cov khoom tuaj yeem raug txo, uas tuaj yeem txo tus nqi tag nrho hauv lub sijhawm ntev. RDP tuaj yeem ua cov khoom siv hauv tsev muaj kev tsim kho ntau dua thiab ua haujlwm ntev dua, txo qis kev tsim kho thiab cov khoom siv pov tseg, yog li ua rau muaj txiaj ntsig kev lag luam.
2. Txhim kho kev tsim kho kom zoo
Kev siv RDP tuaj yeem txhim kho tag nrho cov khoom zoo ntawm lub tsev thiab txo cov nqi rov ua haujlwm thiab kev saib xyuas los ntawm cov teeb meem tsis zoo. Rau cov neeg tsim khoom thiab cov tog neeg tsim kho, cov khoom siv hauv tsev zoo txhais tau tias tsawg dua cov kev tsis txaus siab zoo thiab cov teeb meem txij nkawm, yog li txhim kho kev ntseeg siab thiab kev ua lag luam kev sib tw ntawm qhov project.
(8) Daim ntawv thov piv txwv
1. Cov nplaum nplaum
Ntxiv RDP rau cov pobzeb nplaum tuaj yeem txhim kho lub zog sib txuas ntawm cov pobzeb thiab cov substrate, txhim kho cov kev ua haujlwm ntawm cov nplaum nplaum, thiab hloov mus rau cov substrates sib txawv thiab kev tsim kho.
2. Sab nrauv phab ntsa rwb thaiv tsev
Nyob rau sab nrauv phab ntsa rwb thaiv tsev, RDP tuaj yeem txhim kho qhov adhesion ntawm cov txheej txheem rwb thaiv tsev thiab cov txheej txheem kho kom zoo nkauj, txhim khu kev ruaj ntseg tag nrho ntawm cov kab ke, thiab txhim kho qhov tawg tsis kam thiab ua haujlwm ntev ntawm lub cev.
3. Self-leveling pem teb
Kev siv RDP hauv cov plag tsev tus kheej tuaj yeem txhim kho qhov flatness thiab hnav tsis kam ntawm hauv pem teb, txhim kho kev tsim kho, thiab hloov mus rau qhov nyuaj hauv av.
Redispersible latex hmoov muaj txiaj ntsig zoo hauv kev tsim kho. Nws tuaj yeem txhim kho cov khoom sib txuas, txhim kho kev sib tsoo thiab kev ua haujlwm yooj yim, txhim kho kev tsim kho kev ua haujlwm, txhim kho durability thiab tshuaj tiv thaiv corrosion, thiab muaj txiaj ntsig ib puag ncig thiab kev lag luam. Hauv cov khoom siv hauv tsev niaj hnub, daim ntawv thov ntawm RDP tau dhau los ua ib qho tseem ceeb hauv kev txhim kho cov khoom siv thiab kev tsim kho kom zoo. Nrog rau kev nce qib ntawm kev siv thev naus laus zis thiab kev nthuav dav ntxiv ntawm kev siv, RDP yuav ua kom pom nws tus nqi tshwj xeeb thiab qhov zoo hauv ntau qhov kev tsim kho.
Post lub sij hawm: Jul-03-2024