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Thermal Conductivity of Monolithic Organic Aerogels
Abstract
The total thermal conductivity λ of resorcinol-formaldehyde aerogel monoliths has been measured as a function of density ρ in the range from ρ = 80 to 300 kilograms per cubic meter. A record-low conductivity value in air at 300 K of λ ≈ 0.012 watt per meter per kelvin was found for ρ ≈ 157 kilograms per cubic meter. Caloric measurements under variation of gas pressure as well as spectral infrared transmission measurements allowed the determination of solid conductivity, gaseous conductivity, and radiative conductivity as a function of density. The development of such low conductivity materials is of great interest with respect to the substitution of environmentally harmful insulating foams made from chlorofluorocarbons.
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Cited by
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Lee, J.-H., & Park, S.-J. (2020) · Carbon · doi:10.1016/j.carbon.2020.02.073 · Cited by 471
Thermally Insulating Nanocellulose‐Based Materials
Apostolopoulou‐Kalkavoura, V., Munier, P., & Bergström, L. (2021) · Advanced Materials · doi:10.1002/adma.202001839 · Cited by 394
Borax‐Mediated Formation of Carbon Aerogels from Glucose
Fellinger, T., White, R. J., Titirici, M., & Antonietti, M. (2012) · Advanced Functional Materials · doi:10.1002/adfm.201102920 · Cited by 165
Transport properties of gas in silica aerogel
Zeng, S. Q., Hunt, A., & Greif, R. (1995) · Journal of Non-Crystalline Solids · doi:10.1016/0022-3093(95)00052-6 · Cited by 155
Gas Pressure Dependence of the Heat Transport in Porous Solids with Pores Smaller than 10 μm
Swimm, K., Reichenauer, G., Vidi, S., & Ebert, H.-P. (2009) · International Journal of Thermophysics · doi:10.1007/s10765-009-0617-z · Cited by 107
Metadata
- Authors
- Lu, X., Arduini-Schuster, M. C., Kuhn, J., Nilsson, O., Fricke, J., & Pekala, R. W.
- Venue
- Science
- Published
- 1992-02-21
- Volume
- 255
- Issue
- 5047
- Pages
- 971-972
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2037315935
- Cited by
- 563
- References
- 0
- FWCI
- 5.57
- Type
- journal article
- Language
- en
- Open access
- closed
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- Lu, X., Arduini-Schuster, M. C., Kuhn, J., Nilsson, O., Fricke, J., & Pekala, R. W. (1992). Thermal Conductivity of Monolithic Organic Aerogels. Science. https://doi.org/10.1126/science.255.5047.971
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
