Dab tsi yog redispersible polymer hmoov (RDP)?

Recispersible polymer hmoov (RDP) yog ib qho ntau yam thiab tseem ceeb hauv cov ntaub ntawv tsim kho niaj hnub. Tau los ntawm cov polymers, cov hmoov no ua si lub luag haujlwm tseem ceeb hauv kev txhim kho cov kev ua tau zoo thiab cov yam ntxwv ntawm ntau yam khoom siv hauv tsev. RDPs txhim kho qhov yooj, cov khoom noj, thiab cov khoom siv ua kom zoo li cov neeg nplua nuj, plasters, ua rau lawv tsis tseem ceeb hauv kev tsim kho kev tsim kho.

Muaj pes tsawg leeg thiab ntau lawm
RDPs yog tsim los ntawm kev tshuaj tsuag-qhuav aqueous ntawm polymers. Cov txheej txheem pib nrog kev xaiv ntawm haum polymer emulsions, uas feem ntau yog raws Vinyl acetate, Ethylene, Butadiene, lossis Acrylic Monomers. Cov emulsions no yog tom qab tshuaj tsuag-qhuav los ua cov hmoov dawb-ntws. Thaum lub sij hawm ua kom qhuav, cov dej yog evaporated, tawm hauv qab cov nplais polymer uas muaj cov tshuaj ntxiv ntxiv xws li kev tiv thaiv kev tiv thaiv thiab cov tshuaj tiv thaiv kev tiv thaiv thiab cov tshuaj tiv thaiv kev tiv thaiv. Cov tshuaj ntxiv no ua kom paub tseeb tias cov hmoov tseem nyob ywj pheej dawb thiab tuaj yeem rov qab tau yooj yim hauv dej.

Cov noob polymers feem ntau siv hauv RDP ntau lawm:
Vinyl acetate ethylene (VAE) copolymers: paub rau lawv saj thiab muaj zog adhesion khoom.
Acrylic Polymers: tau sau tseg rau lawv txoj kev tiv thaiv mus rau UV hluav taws xob thiab huab cua.
Styrene-Butadiene roj hmab (SBR): Muaj cov dej tsis kam ua tau zoo thiab hloov tau zoo.

Cov ntawv thov siv hauv kev tsim kho

RDPs siv hauv kev siv dav dav ntawm kev tsim kho cov ntawv thov vim lawv lub peev xwm los txhim kho cov khoom ntawm ntau yam khoom siv hauv tsev. Ib txhia ntawm

Maas-raws ntaub nplaum nplaum nplaum (CTA):
Txhim kho Adhesion: RDPS txhim kho txoj kev sib khi ua kom muaj zog ntawm cov vuas thiab substrates.
Yooj taus: lawv tso cai rau kev hloov chaw ntawm me ntsis txav thiab thermal nthuav, tiv thaiv cov pobzeb nrib pleb.

Rwb thaiv tsev sab nrauv thiab cov tshuab ua tiav (EIFS):
Durability: RDPS txhim kho kev tiv thaiv cov ntaub ntawv rwb thaiv tsev rau huab cua thiab tshuab kev ntxhov siab.
Dej Tsis kam: Lawv pab tsim kom muaj kev thaiv kev tiv thaiv cov dej noo.

Skim qe thiab plasters:
Kev ua haujlwm: RDPS txhim kho qhov yooj yim ntawm kev thov thiab ua tiav qhov zoo.
Nrig tsis kam: Lawv muab cov kev pheej hmoo, txo qhov kev pheej hmoo ntawm kev tawg hauv cov plasters thiab skim tsho tiv no.

Kev Ntsuas Tus Kheej Cov Lus Cog Tseg:
Flowerability: RDPS txhim kho cov khoom ntws, ua kom muaj kev du thiab theem.
Lub zog: lawv pab rau tag nrho cov tshuab muaj zog thiab kav ntev ntawm cov tebchaw.

Kho Mortars:
Adhesion: RDPP kom ntseeg tau tias muaj kev sib raug zoo rau cov qauv pob zeb uas twb muaj lawm.
Yooj taus: lawv haum raws kev txav hauv thaj chaw kho, tiv thaiv kev puas tsuaj ntxiv.

Qhov zoo ntawm kev siv RDP

Qhov muaj kev sib txuam ntawm RDPS hauv cov ntaub ntawv kev tsim kho muaj ntau yam txiaj ntsig:
Txhim kho Adhesion: RDPS txhim kho txoj kev sib txuas ntawm lub zog sib txawv ntawm cov kev tsim khoom sib txawv, ua kom muaj kev tsim tsa ntev ntev.
Nce ntxiv: qhov hloov tau los ntawm RDPS pab kom muaj kev txav peev txheej teeb tsa thiab kev nthuav dav thermal, yog li kev tiv thaiv kev tiv thaiv kab nrib pleb thiab kev puas tsuaj.
Dej Tsis kam: RDPS cuam tshuam dej tshuaj rau cov ntaub ntawv tsim kho, tiv thaiv lawv los ntawm noo noo kev puas tsuaj thiab ua kom muaj kev phom sij.
Txhim kho kev ua haujlwm: Cov ntaub ntawv hloov kho nrog RDPS yooj yim dua ua haujlwm nrog, muab cov khoom siv zoo dua thiab ua tiav.
Cov peev txheej ruaj khov: cov khoom siv kho kom zoo dua qub, xws li ua tsis kam thiab lub zog tensile, pab txhawb kev tsim kho cov khoom siv.

Kev cuam tshuam ib puag ncig thiab kev ruaj khov
Thaum RDPS muab cov txiaj ntsig tseem ceeb, lawv ntau lawm thiab siv kuj yog kev cov nyom ib puag ncig. Cov txheej txheem polymerization cuam tshuam nrog petrochemical-derived monomers, uas pab rau tus kws kho tus hneev taw ntawm RDP. Ib qho ntxiv, lub zog-khaus txau cov txheej txheem ntxiv ntxiv rau kev txhawj xeeb ib puag ncig.

Muaj kev siv zog ua kom txo cov kev cuam tshuam no:

Cov Khoom Siv Rov Ntxiv: Kev tshawb fawb tau ua los tsim RDPS tshiab dua tshiab, xws li txo cov neeg polymers, kom txo qis ntawm cov pob txha pob.
Zog txuag hluav taws xob: Kev kho tshiab nyob rau hauv ntau lawm thev naus laus zis thev naus laus zis los txo cov zog siv hluav taws xob ntawm cov tshuaj tsuag cov tshuaj tsuag.
Rov qab siv dua tshiab thiab khib nyiab: Siv cov kev pab cuam uas siv tau rau cov ntaub ntawv tsim kho thiab txo cov kauj ruam uas muaj cov kauj ruam tseem ceeb heev.
Kev siv RDPs hauv kev tsim kho tuaj yeem pab txhawb kev ua kom muaj kev ruaj ntseg ntawm cov tuam tsev los ntawm kev txhim kho qhov kev xav tau ntawm kev kho kom nquag thiab hloov pauv. Qhov no, nyob rau hauv lem, lowers kev noj ntawm cov ntaub ntawv raw thiab lub zog ntawm lub tsev lub neej.

Yav Tom Ntej thiab Kev Txhim Kho
Lub neej tom ntej ntawm RDP thev naus laus zis yog npaj rau kev hloov tshiab thiab muaj kev ruaj ntseg. Cov qauv tseem ceeb thiab kev tsim kho muaj xws li:

Cov qauv zoo: Kev tsim cov polymer tshiab sib xyaw ua ke, xws li txhim kho cov khoom tshwj xeeb, xws li kev txhim kho kom muaj kuab lom lossis huab cua sov.
Nano-thev naus laus zis: sib xyaw ua ke rau RDPS ntxiv cov yam ntxwv ua tau zoo ntxiv ntawm qib molecular.
Cov kev cai ib puag ncig: kev tswj hwm ib puag ncig kev txhim kho ntawm Eco-friendly RDPs nrog txo cov khoom sib xyaw uas txo qis (vocs) thiab txo qis ib puag ncig.
Cov Khoom Siv Ntse: Tshawb nrhiav rau RDPs uas teb rau cov kev hloov ib puag ncig, xws li cov av noo lossis kub, kom tau txais kev ua haujlwm zoo hauv kev kho cov ntawv thov.

Redispersible polymer hmoov yog ib qho tseem ceeb hauv cov ntaub ntawv tsim kho niaj hnub, muab kev ua tau zoo, durability, thiab kev ua haujlwm. Lawv lub peev xwm txhawm rau txhim kho adhesion, yooj, thiab dej tsis kam ua rau lawv tseem ceeb hauv ntau daim ntawv thov, los ntawm cov nplaum nplaum los kho neeg nplua nuj. Txawm hais tias ib puag ncig cov nyom, txuas ntxiv kev tshawb nrhiav thiab kev cog lus thev naus laus zis yog paving txoj kev kom muaj kev ruaj khov ntau dua thiab muaj txiaj ntsig RDP ntau. Raws li kev tsim kho kev tsim kho txuas ntxiv mus evolve, RDP yuav ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj zog dua, muaj cov qauv muaj zog ntau dua.