화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2017년 가을 (10/25 ~ 10/27, 대전컨벤션센터)
권호 23권 2호, p.1438
발표분야 고분자
제목 Thermal expansion capsules with suspension polymerized with monomers with high tg and low water solubility
초록 Recently, there have been requirements for greater advances in the weight reduction of automotive parts for mileage improvement. In this respect, Thermal Expandable Microsphere (TEM) is a  suitable material. They have a core and shell structure. A low-boiling-point hydrocarbon liquid is encapsulated by a polymeric shell. Mixing the microcapsules with the thermoplastic polymer and letting them thermally expand in a polymer can make polymer foams. 
In this study, thermally expandable microspheres are synthesized with acrylonitrile and cyclohexyl methacrylate. CHMA is monomer that has high glass transition temperature. So we expected core-shell is expanded on high temperature. Iso-octane and is used the blowing agent. Suspension polymerization of AN and CHMA initiated by Azobisisobutyronitrile. Butanedioldimethacrylate is used as crosslinker. PVP are used as the Stabilizer. Characterization is used by SEM, TGA, Coulter.
저자 소재일, 정지영, 천영걸, 심상은
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