Kawm Txog Resin Hloov Kho Ntawm Dej Borne Alkyd Resin Coatings Featured Image

Kawm Txog Resin Modification Ntawm Waterborne Alkyd Resin Coatings

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Alkyd resin txheej tau dhau los ua ib qho ntawm feem ntau kawm thiab tsim cov txheej hauv kev lag luam txheej vim nws yooj yim muaj cov ntaub ntawv raw, tus nqi qis thiab zoo heev gloss, yooj thiab adhesion.Txawm li cas los xij, cov tsoos alkyd resin txheej muaj qee qhov tsis zoo xws li cov txheej txheem qis, dej tsis kam thiab kub tsis kam, thiab nws daim ntawv thov tsis tuaj yeem ua tau raws li qhov yuav tsum tau muaj ntawm kev tsim kho kev lag luam rau kev ua haujlwm siab.Nws yog ib qho tsim nyog yuav tau hloov kho thiab nthuav dav daim ntawv thov teb ntawm alkyd resin txheej.

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Tam sim no, muaj ob yam hauv kev tshawb fawb txog kev hloov kho ntawm alkyd resin coatings: resin modification thiab pigment modification.Resin modification yog qhia lwm pab pawg ntawm cov resin molecular saw ntu, los yog nrog polyurethane resin, acrylic resin, epoxy resin thiab silicone resin.Kev hloov pauv ntawm cov xim thiab muab tub lim yog tsuas yog ntxiv cov xim sib txawv thiab cov muab tub lim los txhim kho kev ua haujlwm ntawm alkyd resin coatings.Daim ntawv no qhia txog kev kawm txog kev hloov kho ntawm ob lub alkyd resin coatings dej.

Kawm Txog Resin Modification Ntawm Waterborne Alkyd Resin Coatings

1. Kev npaj cov roj-dej alkyd resin los ntawm Zanthoxylum bungeanum noob los ntawm degradation ntawm pov tseg polyethylene terephthalate (PET) fwj
Lei Rui ntawm Shaanxi University ntawm kev tshawb fawb thiab thev naus laus zis, thiab lwm yam tau npaj cov tsiaj hloov pauv roj-dej alkyd resin ntawm Zanthoxylum bungeanum noob los ntawm kev siv pov tseg PET fwj, trimethylolpropane (TMP) thiab tsis tuaj yeem noj Zanthoxylum bungeanum noob roj ua cov ntaub ntawv tseem ceeb, phthalic anhydride ( PA) raws li acidic monomer, 2,2-Dimethylolpropionic acid (DMPA) raws li aqueous monomer, thiab n, N-Dimethylethanolamine li neutralizing tus neeg sawv cev.Kev ntsuas kev ua tau zoo ntawm cov txheej txheem qhia tau hais tias thaum cov ntsiab lus cawv yog 11.5%, cov roj cov ntsiab lus yog 50%, w (PET) = 9.3%, w (DMPA) = 10%, lub txheej muaj kev ruaj ntseg zoo, thiab dej. tsis kam, hardness thiab thermal stability zoo heev piv nrog cov dej aqueous alkyd zoo tib yam.
2. Silicone acrylate polyurethane hloov waterborne alkyd anticorrosive txheej
Cov alkyd resin tau npaj los ntawm esterification cov tshuaj tiv thaiv nrog cov roj fatty acid (TOFA), pentaerythritol thiab PA ua cov ntaub ntawv tseem ceeb, thiab tom qab ntawd cov emulsifier AE 300 tau ntxiv kom tau cov tshuaj pleev dej alkyd dispersion.Ib qho aqueous polyurethane prepolymer tau npaj los ntawm lub cev qhuav dej diol, isophorone diisocyanate thiab aqueous monomer 2,2-dihydroxymethylpropionic acid (DMPA).Silicon acrylic polyurethane lotion tau npaj los ntawm kev siv TEA ua tus neeg sawv cev nruab nrab, ntxiv acrylic monomer, emulsifier, silane coupling tus neeg sawv cev, pib thiab cov saw txuas ntxiv.Ib qho silicone acrylic polyurethane hloov waterborne alkyd txheej tau npaj nrog aqueous alkyd dispersion thiab silicone acrylic polyurethane lotion ua cov ntaub ntawv tseem ceeb hauv zaj duab xis.