계면중합에 의한 폴리우레아 마이크로캡슐의 제조 -분산상의 점도에 따른 마이크로캡슐의 크기 변화-

Preparation of Polyurea Microcapsule by Interfacial Polymerization -Influence of Dispersed Phase Viscosity on the Size of Obtained Microcapsules-

  • 이동선 (기능성고분자신소재연구센터, 한양대학교 섬유고분자공학과) ;
  • 금창헌 (기능성고분자신소재연구센터, 한양대학교 섬유고분자공학과) ;
  • 조창기 (기능성고분자신소재연구센터, 한양대학교 섬유고분자공학과)
  • Lee, Dong-Sun (Center for Advanced Functional Polymers, Department of Fiber and Polymer Engineering, Hanyang University) ;
  • Kum, Chang-Hun (Center for Advanced Functional Polymers, Department of Fiber and Polymer Engineering, Hanyang University) ;
  • Cho, Chang-Gi (Center for Advanced Functional Polymers, Department of Fiber and Polymer Engineering, Hanyang University)
  • 발행 : 2007.10.30

초록

Polyurea microcapsules were prepared by interfacial polycondensation using diisocyanates as the oil soluble monomers and diethylenetriamine as the water soluble monomer. NP-10, nonionic surfactant, was used as an emulsifier. Toluene was used as the diluent of the diisocyanates as well as the means to prepare microcapsule with empty shell. Number average particle size of the microcapsule showed a linear relationship with the viscosity of the dispersed oil phase. Polyurea microcapsule with thinner shell thickness showed good thermal stability well above $250^{\circ}C$ and showed same thermal stability compared to that with thicker shell thickness.

키워드

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