Txhawm rau teb cov lus nug no, nws yog qhov yuav tsum muaj kom nkag siab txog lub hauv paus ntsiab lus ntawm kev tsim ntawm zaj duab xis lkm. Nws yog txuam nrog ob multidirectional cov txheej txheem - res resence ntawm kev ua haujlwm sab hauv kev ntxhov siab thaum lub zog polymerization thiab cov nplaum. Lub zog ntawm adhesion (tu siab) yog sim khaws zaj duab xis nyob rau saum npoo ntawm lub hauv paus, thiab kev ntxhov siab sab hauv (svn) yog kev cuam tshuam nws. Lub zog ruaj khov yog lub zog ntawm zaj duab xis (xh.
Txhawm rau txiav txim siab cov xim twg yog qhov zoo tshaj plaws rau cov faadeade no, nws yog ib qho tsim nyog los xam tawm txawm tias nyob rau hauv kev faib tawm LKM. Ua ntej tshaj plaws, cov xim pleev xim tau faib los ntawm cov kuab tshuaj. Cov xim pleev xim rau cov huab cua organic yog tsim kom muaj ntom ntom, thiab yog li ntawd cov yeeb yaj kiab saum npoo yog yuav luag lossis tsis yog los ntawm pliolite resin) thiab yog tsim rau cov ntoo thiab hlau chaw.
Dej cov xim dej los tsis hnov ntxhiab, qhuav sai sai. Muaj peev xwm "ua pa" hauv zaj duab xis tsim los ntawm lawv yog qhov loj heev, thiab yog li ntawd lawv haum rau cov ntxhires. Kev khi cov tshuaj - lwm qhov tseem ceeb tshaj plaws ntawm LKM. Nws yog lub binder uas muab cov xim pleev rau lub npe - roj, alkyd, acrylic, thiab lwm yam.
Cov xim pleev xim yog kab tias qhov tseem ceeb tshaj plaws pom ntawm LKM, qhov twg cov khoom siv roj. Cov ntaub ntawv zoo li no ua rau muaj ntom heev, tsis zoo "breathable" zaj duab xis, thiab yog li ntawd tau siv rau cov xim ntoo. Raws li rau txha hniav laus, rau facade ua haujlwm yog qhov haum rau lawv ob hom: alkyd thiab polyurethane. Alkid Enamels tsim qhov ntom ntom, nruj, theej ruaj, tab sis kuj muaj cov yeeb yaj kiab yooj yim. Polyurethane yog ntau dua elastic thiab du, tab sis tib lub sijhawm, zaj duab xis muaj zog thiab tiv taus kos thiab poob siab.
Xaiv cov xim pleev xim ua ke los ntawm cov yam ntxwv ntawm cov ntaub ntawv
Phab ntsa sab nraum zoov tom tsev
Cov xim acrylic ntawm cov organic huab cua, raws li txoj cai, yog polyacrylate-raws li matte compositions. Lawv siv rau cov xim pleev xim plastered chaw thiab qhob. Cov xim dej Soluble tau muab cais raws li hauv qab no: kev sib sau ua ke raws li cov ahoous li dispersions ntawm ntau yam ntxhia thiab ntxhia.
Cov zaub mov muaj feem ntau yog siv rau cov ntxhia los yog hauv paus yav dhau los npog nrog cov khoom no. Lub zog thiab lub zog ntawm cov txheej txheej tau nrog lawv muaj tsawg, kev siv cov ntaub ntawv zoo li no rau cov xim ntawm cov facades yog qhov tsis xav tau.
Cov ntaub ntawv tso dej-dispersive muaj nyob rau ntawm plaub hom kev faib tawm: polyvinyl acetate (PVA), styrene butadiene, acrylic, silicone. Ntawm cov no, ob hom kauj ruam yog tsim rau cov xim facades.
Cov xim thav duab raws li Acrylic Dispersion yog Universal. Txhawm rau kom tau txais lub siab zoo tiav txheej txheej, nws yog txaus kom siv ob txheej ntawm saum npoo. Nyob rau tib lub sijhawm, txheej tsis yog tsuas yog "ua pa xwb", uas ua rau nws ua tau kom ua tiav cov kev sib xyaw no rau ntawm cov pob zeb hauv pob zeb, tab sis kuj tseem muaj. Cov xim silicone-emulsion yog bred rau ntawm dej thiab muab cov xim pleev xim zoo tshaj plaws ntawm acrylic: lawv yuav luag tau li lawv tsis pab txhawb rau kev txhim kho cov kab mob ntawm cov microrganism. Cov ntaub ntawv no tsim nyog rau yuav luag txhua hom ntxhia saum npoo.
Thiab cov pab pawg kawg - Silicone-hloov xim ntawm cov acrylic. Lawv kuj lav zoo adhesion thiab kev tiv thaiv zoo los ntawm UV duab. Xws li cov txheej txheej dries nrog tsawg dua cov hluav taws xob voltage ntau dua li txheej ntawm cov acrylic, thiab yog li tsis ua cov microcacks. Lawv tuaj yeem siv yuav luag txhua yam hauv kev xyaum ntawm substrate.
Los ntawm kev siv tau
Ua ntej pib xim ntxhia saum npoo av, cov kev ntsuam xyuas yuav tsum tau ua:
Kwv yees cov neeg kho tshuab lub zog ntawm cov nplaim dej. Yog hais tias nws crept rau lossis ntawm nws muaj qhov xim qub xim pleev xim, phab ntsa yuav tsum tau ntxuav, thiab tom qab ntawd tej zaum yuav them nrog av.
Tshawb nrhiav qhov nqus ntawm lub hauv paus, txaws ntawm phab ntsa 50-100 ml dej. Yog hais tias cov kua dej tau nqus tau qhov tseeb ua ntej lub qhov muag, nws txhais tau tias. Kev Hygroscopicity ntawm phab ntsa yog loj heev, uas yuav tiv thaiv qhov kev ntws ntawm zaj yeeb yaj kiab ua yeeb yam. Koj tuaj yeem tawm tsam qhov no nrog kev pab ntawm cov av uas tsim nyog.
Txiav txim siab qhov sib xyaw ntawm cov xim tshiab nrog qub. Qhov teeb meem yuav tshwm sim yog tias lub phab ntsa tau siv los coated nrog roj lossis lwm yam xim ntawm cov kuab tshuaj, kev sib cais ntawm cov dej tsis zoo lossis tsis poob rau saum npoo. Qhov kev xaiv radical feem ntau yog tshem cov txheej qub, tab sis nws yog ib qho txheej txheem ua haujlwm, thiab feem ntau cov txheej txheem ntawm cov laus ua haujlwm tau raug yuam raws li lub ntsej muag zoo li nws tau npog qee zaum. Yog tias peb tab tom tham txog cov pob zeb hauv av facade, tom qab ntawd, piv txwv li cov acrylic cov xim acrylic-dispersion xim, nws tseem muaj cov xim tshwj xeeb tsim rau cov roj txheej qub.
Tshem tawm ntawm cov pwm. Yog tias nws tau kuaj pom, nws tuaj yeem tshem tau siv cov kev daws teeb meem tshwj xeeb.
Txiav txim siab muaj ntsev calcium, tsis zoo los yog tsis me me soluble hauv dej. Lawv kuj yuav tsum tau muab tshem tawm ntawm lub npoo ntawm phab ntsa ua ntej thov cov av thiab xim xim ntau dua.
| Saib ntawm qhov tsis xws luag | Tej zaum yuav ua rau muaj tshwm sim |
|---|---|
| Zaj duab xis kiag li los yog ib nrab tev los ntawm qhov chaw uas tsis muaj kev tawg | Tsis muaj zog adhesion xaiv cov xim tsis raug, tsis npaj txhij lub hauv paus (Svn> tu siab) (SPR> SVN) |
| Zaj duab xis yog tag nrho lossis ib nrab tso ntawm qhov chaw nrog kev tawg | Lub hauv paus qis tau ntxiv rau lub zog me me ntawm cov yeeb yaj kiab, uas tuaj yeem yog vim cov xim tsis tshua muaj zoo thiab kev npaj siab (ntxuav) (Svn> tu siab) (Svn> SPR) |
| Zaj duab xis tawg tsis muaj tshuaj pleev | Zaj duab xis muaj zog (vim li cas pom saum toj no) (Svn> SPR) (Tu siab> svn) |