| 摘要 |
The present invention relates to a preparation method for aqueous cycloaliphatic isocyanate modified polyester photocurable resin consisting of: 1-3% hyperbranched polyester, 5-12% hydroxyl-containing acrylic acid monomer, 10-18% cycloaliphatic isocyanate monomer, 0.02-0.3% dibutyltin dilaurate, 10-20% maleic anhydride, 4-10% N, N- dimethylbenzene amine, 3-5% sodium hydroxide, 40-65% deionized water; the hyperbranched polyester is synthesized by DMPA and TMP under the act of catalyst; in the present invention, the aqueous cycloaliphatic isocyanate modified polyester light cured resin has a good storage stability; under the effect of photoinitiator, a coating film is of superior water resistance, hardness, aging resistance, cosmetic resistance and stain resistance, concurrently has characteristics of high glossiness, good abrasive resistance, strong adhesive force, high fullness, superior impact resistance and the like, and can be extensively used in radiation coating and for protecting a surface of an article made of wood, metal, zinc alloy, aluminum alloy, magnesium alloy, plastic and the like. |
