Journal
INTERNATIONAL JOURNAL OF THERMOPHYSICS
Volume 40, Issue 4, Pages -Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10765-019-2505-5
Keywords
Carbon aerogel; Reinforced carbon aerogel; Thermal conductivity; Thermal transfer mechanism
Funding
- National Natural Science Foundation of China [11402003, 51772028]
- Beijing Natural Science Foundation [2182064]
- Young Elite Scientist Sponsorship (YESS) Program by CAST [2015QNRC001]
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Carbon aerogels, based on resorcinol and formaldehyde precursors and prepared by supercritical drying and high-temperature carbonization, are nanostructured carbons. Carbon aerogels have very low thermal conductivity due to their nanosized pores and particle structures; thus, they are promising as applicants in high-temperature insulation applications. It is well known that the thermal conductivity of carbon aerogels is composed of many components and influenced by many factors, and this review discusses the heat transfer mechanisms of the carbon aerogels. The synthesis procedures of the carbon aerogels were also reviewed. Moreover, the weak mechanical properties of pristine carbon aerogels limit their applications; therefore, it is necessary to strengthen the carbon aerogels and improve their mechanical properties. The reinforced carbon aerogels were introduced and reviewed.
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