Preparation and Application of Functional Microsphere(I) - A Study on Microsphere Formation and Characteristics of Poly(ethylene-co-vinylacetate) Polymer with TiO2

기능성마이크로스피어의 제조와 응용(I) - TiO2를 함유한 Poly(ethylene-co-vinylacetate) 공중합체의 마이크로스피어 제조 및 그 특성에 관한 연구

  • Lee, Shin-Hee (Dept. of Clothing & Textiles, Kyungpook National University) ;
  • Park, Soo-Min (Dept. of Organic Material Science and Engineering, Pusan National University)
  • 이신희 (경북대학교 의류학과) ;
  • 박수민 (부산대학교 유기소재시스템공학과)
  • Received : 2007.11.08
  • Published : 2008.04.30

Abstract

Poly(ethylene-co-vinylacetate)(EVA) microspheres were prepared by a thermally induced phase separation. The microsphere formation occurred by the nucleation and growth mechanism in the metastable region. The diluents used were toluene. The microsphere formation and growth was followed by the cloud point of the optical microscope measurement. The microsphere size, which was obtained by SEM observation and particle size analyzer, became decreased when the titanium dioxide($TiO_2$) concentration was higher. The deodorizing function of the prepared fabrics was studied by the determination of the decomposing capability for $NH_3$. The deodorant activity of these deodorizing fabrics was measured by chromogenic gas detector tubes. The deodorant activity of $NH_3$ increased with increasing $TiO_2$ concentration of EVA microsphere.

Keywords

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