Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 123, Issue -, Pages 108-113Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2019.05.004
Keywords
Polymer-matrix composites (PMCs); Thermal properties; Micro-mechanics; Thermal analysis
Funding
- Chonbuk National University
- Korea Institute of Science and Technology internal project
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [2017R1C1B5077037]
- Ministry of Trade, Industry & Energy (MOTIE, Korea) under Industrial Technology Innovation Program [10082586]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10082586] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2017R1C1B5077037] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Silica aerogels have attracted great interest for several decades because of their super thermal insulation property, but their fragility has limited their application in every-day products. Here we describe a method to fabricate flexible and thermally-insulated composites by using a flexible poly(dimethylsiloxane) (PDMS) matrix and by preventing matrix impregnation of the silica aerogel pores. The silica aerogel was first mixed with ethanol to prevent impregnation of the silica aerogel pores with PDMS molecules. After composite fabrication, the ethanol was removed. The optimum PDMS composite had super thermal insulation (0.018 W/m.K) and was flame-retardant, in addition to being flexible. This method described here will facilitate the application of silica aerogel-incorporated composites as thermal insulation materials for products that require flexibility and flame-retardant properties.
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