화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2016년 가을 (10/19 ~ 10/21, 대전컨벤션센터)
권호 22권 2호, p.2578
발표분야 KIChE-SCEJ joint symposium(특별 심포지엄)
제목 Synthesis of hollow nanostructured silica particle and their application for optically transparent and thermally insulating polymer
초록 Hollow nanostructured particles have been extensively studied as important nanomaterials. Hollow silica particles has attracted great attention due to its unique structural properties and possible applications as efficient catalysts, in optical devices, drug delivery carriers, thermal and electrical insulators. In this study, we present an improved route to hollow silica particles starting from tetramethyl-orthosilicate (TMOS) instead of the traditionally used ethyl ester. The silica was first deposited onto polystyrene (PS) particles that were later removed. The here introduced, apparently minor modification in synthesis, however, allowed for a very high purity material. The improved, low density hollow silica particles were successfully implemented into polymer films and permitted maintaining optical transparency while significantly improving the heat barrier properties of the composite. The results showed that the prepared hollow silica has a high potential to be used as flexible optical transparent composite film and thermal insulator applications.
저자 Takashi Ogi1, Lusi Ernawati2, Ratna Balgis3, Kikuo Okuyama1
소속 1Department of Chemical Engineering, 2Graduate School of Engineering, 3Hiroshima Univ.
키워드 filler; thermal conductivity; additive; transmittance; energy efficient
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