Thermal conductivity of a clay-based aerogel
Aerogel materials exhibit superior thermal insulation characteristics due largely to their highly porous internal structure. A recently developed class of montmorillonite clay-based aerogels provides the attractive thermal properties of traditional aerogel materials using constituents that are chemi...
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| Veröffentlicht in: | International journal of heat and mass transfer 2009-01, Vol.52 (3), p.665-669 |
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| container_end_page | 669 |
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| container_issue | 3 |
| container_start_page | 665 |
| container_title | International journal of heat and mass transfer |
| container_volume | 52 |
| creator | Hostler, S.R. Abramson, A.R. Gawryla, M.D. Bandi, S.A. Schiraldi, D.A. |
| description | Aerogel materials exhibit superior thermal insulation characteristics due largely to their highly porous internal structure. A recently developed class of montmorillonite clay-based aerogels provides the attractive thermal properties of traditional aerogel materials using constituents that are chemically benign and abundantly available. Results are compared for aerogels made from clay alone and those with polyvinyl alcohol introduced during processing. Results demonstrate that as well as strength advantages, the addition of the polymer also leads to a reduction in thermal conductivity. Experimental thermal conductivity data as well as a model to describe the mechanisms involved in impeding thermal transport are presented. |
| doi_str_mv | 10.1016/j.ijheatmasstransfer.2008.07.002 |
| format | Article |
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A recently developed class of montmorillonite clay-based aerogels provides the attractive thermal properties of traditional aerogel materials using constituents that are chemically benign and abundantly available. Results are compared for aerogels made from clay alone and those with polyvinyl alcohol introduced during processing. Results demonstrate that as well as strength advantages, the addition of the polymer also leads to a reduction in thermal conductivity. Experimental thermal conductivity data as well as a model to describe the mechanisms involved in impeding thermal transport are presented.</description><subject>Aerogel</subject><subject>Applied sciences</subject><subject>Clay</subject><subject>Effective medium</subject><subject>Energy</subject><subject>Energy. 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| identifier | ISSN: 0017-9310 |
| ispartof | International journal of heat and mass transfer, 2009-01, Vol.52 (3), p.665-669 |
| issn | 0017-9310 1879-2189 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_35690926 |
| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Aerogel Applied sciences Clay Effective medium Energy Energy. Thermal use of fuels Exact sciences and technology Heating, air conditioning and ventilation Technical data: comfort, insulation, loads, etc Thermal conductivity |
| title | Thermal conductivity of a clay-based aerogel |
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