• Title/Summary/Keyword: Self-photocuring

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Synthesis and Properties of Self-photocuring Polyurethane Acrylate Oligomer for Color Pre-coated metal (선도장 컬러강판용 도료에 적용하기 위한 자가 광경화형 폴리우레탄 아크릴레이트 올리고머 합성 및 물성)

  • Park, So-Young;Cheon, Jungmi;Jeong, Boo Young;Lee, Do Hyeok;Chun, Jae Hwan
    • Journal of Adhesion and Interface
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    • v.21 no.1
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    • pp.14-19
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    • 2020
  • In this study, we synthesized a self-photocuring intermediate(SPI) by Michael addition reaction and synthesized polyurethane acrylate oligomer. Analysis and physical properties of the synthesized SPI and polyurethane acrylate oligomer were confirmed by FT-IR, NMR and UTM. As the content of the SPI increased, the tensile strength increased and the elongation decreased. In addition, since the film was hydrophobic, the surface energy tended to decrease. When the content of the SPI was 40 wt%, adhesion, processability, and pencil hardness were excellent, and solvent resistance was excellent overall.