A Study on the Environmental Fraternized Preparation of Inorganic/organic Core-shell Binder

환경친화적인 무기/유기 Core-Shell의 제조에 관한 연구

  • Seoul, Soo-Duk (Department of Chemical Engineering, Dong-A University) ;
  • Lim, Jae-Keel (Department of Chemical Engineering, Dong-A University) ;
  • Lim, Jong-Min (Department of Chemical Engineering, Dong-A University) ;
  • Kwon, Jae-Beom (Department of Safety Engineering, Pukyong National University) ;
  • Lee, Nae-Woo (Department of Safety Engineering, Pukyong National University)
  • 설수덕 (동아대학교 화학공학과) ;
  • 임재길 (동아대학교 화학공학과) ;
  • 임종민 (동아대학교 화학공학과) ;
  • 권재범 (부경대학교 안전공학과) ;
  • 이내우 (부경대학교 안전공학과)
  • Published : 2004.03.01

Abstract

Composite particles using inorganic and organic chemicals were synthesized and the results of those reaction were compared to variation of temperature and agitation speed in presence of $CaCO_3$ which was adsorbed SDBS. Also the synthesises were optimized according to conversion rate of composite particles. In inorganic/organic core-shell composite particle polymerization, $CaCO_3$ adsorbed by 0.5wt% surfactant SDBS was prepared initially and then core $CaCO_3$ was encapsulated by sequential emulsion polymerization using MMA at the addition of APS 3.16${\times}$$10^{-3}$mol/L to minimize the coagulated PMMA particle itself during MMA shell polymerization. Encapsulated PMMA on $CaCO_3$ as inorganic/organic core-shell particles was verified by FT-IR and DSC analysis. It was found that the $CaCO_3$ was very well encapsulated by PMMA as shell. The surfaces were distinctly found as spindle shape and broad particle distribution after capsulation.

Keywords

core-shell composite;PMMA;encapsulation;$CaCO_3$;APS

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