Dej-raws li txheej vs. hnyav-raws li txheej
Cov coatings feem ntau coj lawv lub npe los ntawm cov ntawv khi, lossis cov resin, los ntawm lawv ua. Epoxies, alkyds thiab urethanes yog tag nrho cov piv txwv ntawm cov resins uas muab txheej lawv lub npe. Tab sis cov no tsis yog tib qhov chaw uas tsim ib txheej. Ntxiv nrog rau cov khoom siv ntxiv, uas tuaj yeem qiv cov txheej txheem kev ua tau zoo, thiab cov pigments uas qiv xim, cov coatings kuj muaj cov khoom uas yaj tag nrho rau hauv cov kua rau daim ntawv thov yooj yim.
Tus neeg sawv cev liquefying no feem ntau siv cov dej los yog lwm yam tshuaj hnyav. Yog li ntawd, lo lus "dej-raws li" thiab "kua tshuaj-raws li". Yam khoom twg tsim nyog rau txoj haujlwm yuav nyob ntawm qhov xwm txheej. Feem ntau hais lus, ib tus tsis zoo dua li lwm tus, tab sis lawv ua qhov sib txawv hauv ntau qhov xwm txheej. Qhov zoo tshaj plaws, ob qho kev xaiv yuav muaj nyob ib sab ntawm ib sab hauv cov kws tshaj lij lub arsenal.
COV TSWV YIM ZOO TSHAJ PLAWS
Cov xim pleev xim rau hauv dej muaj txog li 80 feem pua ntawm cov xim tsev muag niaj hnub no raws li Paint Quality Institute, lub koom haum pab tswv yim thiab kuaj cov xim. Tsis muaj qhov tsis ntseeg tias qhov no yog qhov loj heev vim yog ib qho ntawm cov khoom tseem ceeb ntawm cov khoom siv dej, txawm tias nws yog xim tsev sab hauv lossis cov khoom hnyav tiv thaiv txheej: tsawg dua tsw.
Thaum ua haujlwm nyob rau hauv qhov chaw kaw lossis qhov cua tsis zoo, qhov evaporation ntawm cov kuab tshuaj tuaj yeem ua rau tsis xis nyob rau cov neeg ua haujlwm lossis txawm tias muaj kev phom sij rau lawv txoj kev noj qab haus huv. Vim li no, ntau txoj haujlwm zoo li cov uas muaj cov roj tso tsheb hlau luam thiab cov tsheb ciav hlau tsheb ciav hlau siv cov txheej txheem dej. Cov no kuj txo cov concentration ntawm cov khoom siv hluav taws xob uas tsim nyob rau hauv qhov chaw kaw. Qhov ntawd tsis tau txhais hais tias, txawm li cas los xij, tias kev siv cov dej-raws li txheej txheej negates qhov xav tauOSHA tau pom zoo ntsuas qhov chaw nyab xeeb.
Kev ua raws li ib puag ncig yog lwm qhov laj thawj rau kev xaiv siv cov txheej txheem dej. Ntau cov kuab tshuaj evaporate mus rau hauv lub npe hu ua volatile organic compounds, los yog VOCs. Tsoom fwv teb chaws, xeev thiab hauv cheeb tsam feem ntau tswj hwm VOCs los ntawm kev txwv ntau npaum li cas cov lag luam raug tso cai tawm hauv lub sijhawm. CovEPA teeb tsa txoj cai hauv tebchawsrau VOCs, tab sis qee lub xeev tau nruj kev txwv ntxiv, xav tau kev sib koom tes los txwv lawv cov pa tawm.
Cov txheej txheem dej tsis tas yuav muaj cov kuab tshuaj xoom, txawm li cas los xij. Ntau yam muaj qhov hu ua co-solvents, cov kuab tshuaj uas muaj nyob rau hauv qis dua thiab txhais tau tias pab thawb cov dej seem ntawm txheej thaum nws qhuav. Tab sis txij li cov txheej txheej dej tsis muaj, lossis cov kuab tshuaj tsawg dua, lawv yog ib txoj hauv kev zoo los txo cov lag luam tawm VOC. Rau qee lub tuam txhab, qhov no tuaj yeem txhais tau tias siv nyiaj tsawg dua rau kev qhia ua raws li ib puag ncig. Lossis ua kom lawv tsis txhob them cov nqi nplua tseem ceeb rau ntau tshaj VOC quotas.
SOLVENT-based coatings
Cov xim ua kuab tshuaj yog tsim los ntawm cov tshuaj liquefying uas txhais tau tias evaporate ntawm cov tshuaj tiv thaiv nrog oxygen. Feem ntau, txav huab cua nyob ib puag ncig cov txheej txheem hnyav yuav pab ua kom cov tshuaj tiv thaiv sai, txo lub sijhawm ziab.
Cov txheej txheem no muaj ib qho txiaj ntsig zoo dua li cov txheej txheem dej. Lawv tsis tshua muaj kev cuam tshuam rau ib puag ncig xws li kub thiab av noo thaum lub sijhawm kho. Cov av noo tuaj yeem tiv thaiv cov dej hauv cov txheej txheem dej los ntawm evaporating, ua rau lawv ua tsis tau zoo hauv qee qhov kev nyab xeeb.
Cov dej-raws li cov txheej txheem kuj nthuav tawm qhov kev sib tw rau theem ntawm kev npaj txheej txheej txheej txheej. Dej, thaum muaj kev cog lus hloov pauv rau cov kuab tshuaj hauv qee qhov xwm txheej, kuj yog ib qho tseem ceeb ntawm cov txheej txheem corrosion, tag nrho cov laj thawj rau kev lag luam coatings hauv thawj qhov chaw. Yog tias dej ua rau kev sib cuag nrog lub substrate ua ntej txheej txheej, qhov rusting yuav pib tshwm sim. Txhawm rau kom ntseeg tau tias qhov no tsis yog qhov teeb meem, cov dej-raws li txheej txheej yuav tsum tau tsim kom tag nrho cov dej tawm los ntawm zaj duab xis saum npoo ua ntej corrosion tuaj yeem tshwm sim. Qhov no tsis yog ib qho kev txiav txim siab nrog cov kuab tshuaj raws li txheej txheej.
Yog li, hauv cov ntsiab lus, txawm tias cov txheej txheem dej raws li dej yuav yog qhov kev xaiv zoo rau kev ua haujlwm nrog rau qhov chaw kaw thiab siv cov txheej txuas txuas ntxiv, lawv tsis muaj qhov tsis muaj zog. Cov hauj lwm nyob rau hauv qhib, ntub dej, xws li cov uas feem ntau pom nyob rau hauv infrastructure recoating tej yaam num, tseem yuav tau txais txiaj ntsim los ntawm txoj cai txheej. Yog tias koj xav tham txog yam khoom twg yuav zoo tshaj rau koj qhov project, peb xav hnov los ntawm koj.Tiv tauj nrog mit-ivy kev lag luam Coatingshnub no. Los yog, yog tias koj xav mus saib peb cov khoom lag luam tag nrho ua ntej, rub tawm peb cov khoom catalog hauv qab no.
Water-based Acrylic emulsion-based sab nrauv primer. | 1.1 mus / kg |
Acrylic Decorative Finishes Dej-raws li hlau finishes xim | 1.18us/kg |
Easy Go Easy Clean Paint Acrylic primer thiab sab saum toj lub tsho tiv no Dej-raws li primer thiab primer-anti-xeb xim | 1.23us/kg |
Dej raws li silicone cov ntsiab lus, washable, hniav matt sab hauv topcoat. | 1.1 mus / kg |
Acrylic copolymer Concentrated Primer Dej raws li primer thiab primer-tiv thaiv xeb xim | 1.18us/kg |
Silicone Gloss Water raws Acrylic copolymer | |
Exast Acrylic Sab nrauv Paste | 1.23us/kg |
Kho kom zoo nkauj txheej Acrylic emulsion-raws li, silicone ntxiv dej raws li xim | 1.1 mus / kg |
Dej raws acrylic emulsion, semi-matt, washable sab hauv topcoat Silicone Semi Matt | 1.18us/kg |
Dej raws li matt, lub tsev hais plaub thiab cov xim hauv pem teb. | 1.23us/kg |
Granico Mineral Txheej Acrylic emulsion raws li, nyias cov ntsiab lus, textured topcoat rau sab nrauv. | 1.25us / kg |
2.1 kWs/kg | |
Anti-Fire Fireproof Paint High kub resistant dej xim Waterborne epoxy pem teb xim, waterborne hlau xim | 1.18us/kg |
Silicone Sab nrauv xim | 1.23us/kg |
Waterbased Intumescent Xim | 1.1 mus / kg |
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Post lub sij hawm: Oct-09-2023