Muaj ntau qhov kev faib tawm ntawm cov dej-raws li tus neeg sawv cev ntub dej
Feb 04, 2024
Waterborne wetting agent hais txog tus neeg sawv cev ntub dej siv hauv cov txheej txheem dej. Lawv feem ntau muab faib raws li lawv siv thiab muab faib ua substrate wetting agents thiab wetting dispersants. Hnub no kuv xav qhia rau koj txog lwm qhov xwm txheej ntawm kev faib tawm.
Cov txheej txheem kev faib tawm no yog nyob ntawm cov qauv molecular. Raws li cov qauv molecular, cov ntaub ntub dej tuaj yeem muab faib ua peb pawg: hydrocarbon chains, alkyne alcohols lossis alkyne cawv hloov polyols, thiab organosilicon.
Hydrocarbon chains
Thawj hom yog cov saw hlau hydrocarbon zoo tib yam, uas yog ib hom ntawm cov qauv polymer - alkylphenol polyoxyethylene ether polymer qauv, thiab yog cov surfactants raug. Ib kawg yog pawg hydrophilic, thiab lwm qhov kawg yog pawg hydrophobic. Cov pab pawg hydrophilic nkag mus rau hauv dej, thaum cov pab pawg hydrophobic tshem tawm sab nraum dej los tsim kev taw qhia. Feem ntau siv rau ntub pigments thiab fillers.
Polyols
Cov qauv tsim los ntawm ob pawg hydrophilic thiab ntau pawg hydrophobic tuaj yeem txo qhov zoo li qub thiab dynamic nto nro ntawm lub cev. Feem ntau siv rau wetting substrates, nws belongs rau qeb ntawm substrate wetting agents.
Organosilicons
Nws muaj cov txiaj ntsig zoo ntawm kev txo qhov nro ntawm qhov system, tab sis tshwj xeeb yuav tsum tau them nyiaj thaum siv nws. Qee lub tshuab tsis haum rau kev siv cov khoom uas muaj silicon.
Lub sijhawm no, kev faib cov dej-raws li cov neeg ua haujlwm ntub dej tau los txog qhov kawg. Cov dej raws li cov dej ntub dej ua lub luag haujlwm zoo li cov khoom siv ntxiv hauv kev siv cov txheej txheem dej, tab sis cov pab pawg ua haujlwm sab hauv ntawm cov additives kuj txawv heev. Cov neeg ua haujlwm ntub dej nrog cov qauv sib txawv muaj cov yam ntxwv sib txawv thiab cov khoom siv, uas txawv ntawm cov txheej txheej. Qhov degree ntawm kev sib txuam ntawm qhov system kuj txawv. Tsuas yog los ntawm kev xaiv cov khoom tsim nyog raws li koj xav tau tuaj yeem ua tiav cov txiaj ntsig zoo dua.
