Aerogel Composites Produced from Silica and Recycled Rubber Sols for Thermal Insulation
Hydrophobic rubber-silica aerogel panels (21.5 × 21.5 × 1.6 cm<sup>3</sup>) were fabricated from silica and rubber sols and reinforced with several fiber types (recycled tire textile fibers, polyester blanket, silica felt, glass wool). A recycled rubber sol was prepared using peracetic a...
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MDPI AG
2022-11-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/22/7897 |
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| author | Alyne Lamy-Mendes Ana Dora Rodrigues Pontinha Paulo Santos Luísa Durães |
| author_facet | Alyne Lamy-Mendes Ana Dora Rodrigues Pontinha Paulo Santos Luísa Durães |
| author_sort | Alyne Lamy-Mendes |
| collection | DOAJ |
| description | Hydrophobic rubber-silica aerogel panels (21.5 × 21.5 × 1.6 cm<sup>3</sup>) were fabricated from silica and rubber sols and reinforced with several fiber types (recycled tire textile fibers, polyester blanket, silica felt, glass wool). A recycled rubber sol was prepared using peracetic acid and incorporated for the first time in TEOS-based sol-gel chemistry. The composites exhibited good thermal stability up to 400 °C and very low thermal conductivity, in the superinsulation range when using polyester fibers (16.4 ± 1.0 mW·m<sup>−1</sup>·K<sup>−1</sup>), and of 20–30 mW·m<sup>−1</sup>·K<sup>−1</sup> for the remaining fibers. They could also endure cyclic compression loads with near full recovery, thus showing very promising properties for insulation of buildings. |
| first_indexed | 2024-03-09T18:13:12Z |
| format | Article |
| id | doaj.art-d691d9c0636a4b8eb568cb297209ef71 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T18:13:12Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-d691d9c0636a4b8eb568cb297209ef712023-11-24T09:00:48ZengMDPI AGMaterials1996-19442022-11-011522789710.3390/ma15227897Aerogel Composites Produced from Silica and Recycled Rubber Sols for Thermal InsulationAlyne Lamy-Mendes0Ana Dora Rodrigues Pontinha1Paulo Santos2Luísa Durães3University of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, 3030-790 Coimbra, PortugalUniversity of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, 3030-790 Coimbra, PortugalUniversity of Coimbra, ISISE, Department of Civil Engineering, Rua Luís Reis Santos, 3030-788 Coimbra, PortugalUniversity of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, 3030-790 Coimbra, PortugalHydrophobic rubber-silica aerogel panels (21.5 × 21.5 × 1.6 cm<sup>3</sup>) were fabricated from silica and rubber sols and reinforced with several fiber types (recycled tire textile fibers, polyester blanket, silica felt, glass wool). A recycled rubber sol was prepared using peracetic acid and incorporated for the first time in TEOS-based sol-gel chemistry. The composites exhibited good thermal stability up to 400 °C and very low thermal conductivity, in the superinsulation range when using polyester fibers (16.4 ± 1.0 mW·m<sup>−1</sup>·K<sup>−1</sup>), and of 20–30 mW·m<sup>−1</sup>·K<sup>−1</sup> for the remaining fibers. They could also endure cyclic compression loads with near full recovery, thus showing very promising properties for insulation of buildings.https://www.mdpi.com/1996-1944/15/22/7897rubber-silica aerogelrecycled rubber solfibers reinforcementthermal superinsulation |
| spellingShingle | Alyne Lamy-Mendes Ana Dora Rodrigues Pontinha Paulo Santos Luísa Durães Aerogel Composites Produced from Silica and Recycled Rubber Sols for Thermal Insulation Materials rubber-silica aerogel recycled rubber sol fibers reinforcement thermal superinsulation |
| title | Aerogel Composites Produced from Silica and Recycled Rubber Sols for Thermal Insulation |
| title_full | Aerogel Composites Produced from Silica and Recycled Rubber Sols for Thermal Insulation |
| title_fullStr | Aerogel Composites Produced from Silica and Recycled Rubber Sols for Thermal Insulation |
| title_full_unstemmed | Aerogel Composites Produced from Silica and Recycled Rubber Sols for Thermal Insulation |
| title_short | Aerogel Composites Produced from Silica and Recycled Rubber Sols for Thermal Insulation |
| title_sort | aerogel composites produced from silica and recycled rubber sols for thermal insulation |
| topic | rubber-silica aerogel recycled rubber sol fibers reinforcement thermal superinsulation |
| url | https://www.mdpi.com/1996-1944/15/22/7897 |
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