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KCI Accredited Journals KCI 등재지
KCI Impact Factor 0.54
Journal of the Microelectronics and Packaging Society 2019;26(2):23-29. Published online: Sep, 20, 2019
DOI : 10.6117/kmeps.2019.26.2.0023
Thermally expandable microsphere and aerogel composite was prepared by chemical compositization. Microsphere can produce synergies with aerogel, especially an enhancement of mechanical property. Through condensation between sulfonated microsphere and hydrolyzed silica sol, chemically-connected composite aerogel could be prepared. The presence of hydroxyl group on the sulfonated microsphere was observed, which was the prime functional group of reaction with hydrolyzed silica sol. Silica aerogel-coated microsphere was confirmed through microstructure analysis. The presence of silicon-carbon absorption band and peaks from composite aerogel was observed, which proved the chemical bonding between them. A relatively low thermal conductivity value of 0.063 W/m·K was obtained.
Keywords Thermally expandable microsphere, aerogel, organic-inorganic, composites, insulator