Tag: Polyester hmoov txheej
Yuav Ua Li Cas Xaiv Cov Hmoov Txheej Zoo rau Koj Cov Khoom
Yuav Ua Li Cas Xaiv Cov Txheej Txheem Zoo rau Koj Cov Khoom Xaiv Cov Txheej Txheem Txheej Txheem, hardener, thiab xim yog qhov pib ntawm kev xaiv cov khoom uas ib tus yuav xav tau ntawm kev ua tiav. Kev tswj ntawm gloss, smoothness, txaus tus nqi, kho tus nqi, ultra violet tsis kam, tshuaj tiv thaiv, tshav kub tsis kam, yooj, adhesion, corrosion kuj, sab nrauv durability, muaj peev xwm yuav reclaimed thiab reused, tag nrho thawj zaug hloov efficiency, thiab ntau dua, yog ib co ntawm yam uas yuav tsum tau txiav txim siab thaum twg cov khoom tshiab yogNyeem ntxiv…
TGIC hloov chemistry hauv hmoov txheej-Hydroxyalkylamide (HAA)
Hydroxyalkylamide (HAA) TGIC Hloov chemistry Raws li lub neej yav tom ntej ntawm TGIC tsis paub meej, cov neeg tsim khoom tab tom nrhiav qhov sib npaug rau nws. HAA curatives xws li Primid XL-552, tsim thiab ua lag luam los ntawm Rohm thiab Haas, tau qhia. Lub ntsiab drawback rau xws hardeners yog hais tias, txij li thaum lawv kho mechanism yog ib tug condensation cov tshuaj tiv thaiv, cov yeeb yaj duab uas tsim rau thicknesses tshaj 2 mus rau 2.5 mils (50 mus rau 63 microns) yuav tso tawm outgassing, pinholing, thiab tsis txaus txaus thiab theem. Qhov no muaj tseeb tshwj xeeb thaum cov noNyeem ntxiv…
Qee yam tseem ceeb rau polyester txheej degradation
Polyester degradation yog cuam tshuam los ntawm hnub ci hluav taws xob, photocatalytic admixtures, dej thiab noo noo, tshuaj, oxygen, ozone, kub, puas, sab hauv thiab sab nraud kev nyuaj siab, thiab pigment fading.Tau ntawm tag nrho cov no, cov nram qab no yam, tag nrho cov tam sim no nyob rau hauv sab nraum zoov huab cua, yog Qhov tseem ceeb tshaj plaws rau txheej degradation: noo noo, kub, oxidation, UV hluav taws xob. Moisture Hydrolysis tshwm sim thaum cov yas raug dej los yog cov av noo.Qhov tshuaj tiv thaiv no yuav yog ib qho tseem ceeb ntawm kev degradation ntawm condensation polymers xws li polyesters, qhov twg ester pawg.Nyeem ntxiv…
Yuav tsum tau rau hmoov txheej tshaj kub dip galvanizing
Cov lus qhia hauv qab no tau pom zoo: Siv zinc phosphate pretreatment yog tias xav tau kev ua kom siab tshaj plaws. Nto yuav tsum huv si zoo kawg nkaus. Zinc phosphate tsis muaj tshuaj ntxuav tes thiab yuav tsis tshem cov roj lossis av. Siv hlau phosphate yog tias xav tau kev ua tau zoo. Hlau phosphate muaj cov tshuaj ntxuav me ntsis thiab yuav tshem tawm cov kab mob me me. Qhov zoo tshaj plaws siv rau pre-galvanized khoom. Pre-heat ua hauj lwm ua ntej daim ntawv thov hmoov. Siv 'degassing' qib polyester hmoov txheej nkaus xwb. Xyuas kom raug kho los ntawm cov kuab tshuajNyeem ntxiv…