화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO))
권호 25권 1호
발표분야 포스터-도료·코팅
제목 Effects of polyfunctional acrylate monomers on the properties of polyurethane acrylate dispersion
초록 Polyurethane acrylate dispersion (PUAD) was used in the coatings and adhesives industry. In this study, we confirmed the effects of the number of acrylate functional groups on the properties of PUAD. 2-Hydroxyethyl methacrylate, and 3-(acryloyloxy)-2-hydroxypropyl methacrylate, and pentaerythritol triacrylate with different numbers of acrylate groups were used as acrylate monomers. We prepared polyurethane acrylate (PUA) through bulk polymerization of the hydroxy group of polyfunctional acrylate monomer with the isocyanate group of NCO-terminated polyurethane. And then, we obtained PUAD by water dispersion of PUA. The chemical structures of PUAD were characterized through FT-IR analysis. We measured the gel fraction, tensile strength, and dynamic mechanical properties of a film prepared by PUAD. The tensile strength of the PUAD film increased with the content of the acrylate group.
저자 김진명, 권용록, 김은진, 김정수, 김동현
소속 한국생산기술(연)
키워드 polyurethane acrylate dispersion; polyfunctional acrylate monomer; gel fraction; tensile strength
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