Kim, Hyung Min Kim, Hyun Su Kim, Seong Yun Youn, Jae Ryoun 2024-01-20T07:33:15Z 2024-01-20T07:33:15Z 2021-09-05 2015-03 1618-7229 https://pubs.kist.re.kr/handle/201004/125717 The thermal conductivity of aerogel/epoxy composite based on the inexpensive powder form of silica aerogels by using water glass under ambient drying conditions was evaluated to investigate the relationship between the internal structure and the thermal conductivity of the composite. A high thermal conductivity was obtained for the composite fabricated by the typical liquid epoxy processing because the pores of the aerogels became filled with the epoxy resin during the processing of the composite. A new processing method for preserving the aerogel pores was then developed using ethanol evaporation, which lowered the thermal conductivity of the composite. The lowest thermal conductivity of 0.04 W/m K was obtained for the composite containing the as-received aerogel of 75 vol% with preserved pores. The preserved aerogel pores in the composite were the most significant physical factor in determining the thermal conductivity of the composite. English WALTER DE GRUYTER GMBH Silica aerogel/epoxy composites with preserved aerogel pores and low thermal conductivity Article 10.1515/epoly-2014-0165 1 E-POLYMERS, v.15, no.2, pp.111 - 117 E-POLYMERS 15 2 111 117 scie scopus 000352814600007 2-s2.0-84925393889 Polymer Science Polymer Science Article aerogel composite epoxy porous material thermal conductivity