화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2019년 가을 (10/23 ~ 10/25, 대전컨벤션센터)
권호 25권 2호, p.1386
발표분야 미립자공학 (Fine Particles Technology)
제목 Fe2O3@TiO2 filled poly acrylate thermal insulation coatings by hydrothermal process
초록 The composite of poly acrylate (PA) and Fe2O3@TiO2 was a promising thermal insulation pigment for energy-saving coating materials. The introduction of acrylate-based segments results in the improvement in mechanical stability, solvent and chemical resistance and toughness in comparison with water born polyurethane (WPU). This work demonstrated a hydrothermal method and etching by HCl solution for fabricating PA/ Fe2O3@TiO2 composites with improved dispersion of Fe2O3@TiO2 nanoparticles. This approach was mainly concerned with the PA and yolk-shell type Fe2O3@TiO2 nanoparticles. The comparison study demonstrated that resulting Fe2O3@TiO2 and yolk-shell type Fe2O3@TiO2 nanoparticles filled PA coatings outperformed those made by physical blending method over optical properties owing to a good dispersion of yolk-shell type Fe2O3@TiO2 nanoparticles. In particular, the coatings filled with 8 wt % yolk-shell type Fe2O3@TiO2 nanoparticles reduced the temperature of a designed “room” by ∼15 °C than unfilled counterparts, but merely blocked ∼15% visible light.
저자 김종석, 김대원, 마영길, 나용복
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