A silica aerogel-based thermal insulation composite film for metal surfaces in gas industries
Silica aerogels are ultralight superinsulators that can increase the efficiency of insulation materials up to three times. In this study, hydrophobic silica aerogels were synthesized using an inexpensive and available water-glass precursor at ambient pressure, without the need for specific equipment...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-10-01
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| Series: | Results in Surfaces and Interfaces |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666845923000673 |
| _version_ | 1827591536181772288 |
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| author | Asma Zare Hassan Hadadzadeh |
| author_facet | Asma Zare Hassan Hadadzadeh |
| author_sort | Asma Zare |
| collection | DOAJ |
| description | Silica aerogels are ultralight superinsulators that can increase the efficiency of insulation materials up to three times. In this study, hydrophobic silica aerogels were synthesized using an inexpensive and available water-glass precursor at ambient pressure, without the need for specific equipment using the sol-gel method. The formation of silica aerogels was confirmed using FT-IR, SEM, TEM, BET and BJH methods. Thermal stability and hydrophilicity of silica aerogels were investigated by TGA and contact angle measurement, respectively. Then, composites including an equal amount of anti-corrosion of alkyd resin-zinc Chromate containing weight percentages 0, 1, 5, 10, 20, 30, 40 and 50 were prepared from silica aerogels. The thermal conductivity of the composites was measured in a liquid state. The results indicated a significant decrease in the thermal conductivity by increasing the weight percentage of silica aerogel. The composite adherence was then evaluated. Composites with the highest amount of aerogel with proper adherence according to the standard set by the National Gas Company of Isfahan province, along with paint thinner for dilution and colorless cobalt drier, were coated on aluminum plates of thickness of 1.2 mm and the thermal conductivity of the film was measured in dry state. The results of this study showed that the composite containing 30% by weight of silica aerogel and B5 adherence had the least thermal conductivity and it can be used as a thermal insulation of various equipment in the gas industries. |
| first_indexed | 2024-03-09T01:33:05Z |
| format | Article |
| id | doaj.art-4f35164911304d61ba50e5a8f4ee4c5b |
| institution | Directory Open Access Journal |
| issn | 2666-8459 |
| language | English |
| last_indexed | 2024-03-09T01:33:05Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Surfaces and Interfaces |
| spelling | doaj.art-4f35164911304d61ba50e5a8f4ee4c5b2023-12-09T06:08:23ZengElsevierResults in Surfaces and Interfaces2666-84592023-10-0113100160A silica aerogel-based thermal insulation composite film for metal surfaces in gas industriesAsma Zare0Hassan Hadadzadeh1Isfahan University of Technology, Faculty of Chemistry, Iran; University of Isfahan, Department of Nanothechnology, Faculty of Chemistry, Iran; Corresponding author. Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran.Isfahan University of Technology, Faculty of Chemistry, IranSilica aerogels are ultralight superinsulators that can increase the efficiency of insulation materials up to three times. In this study, hydrophobic silica aerogels were synthesized using an inexpensive and available water-glass precursor at ambient pressure, without the need for specific equipment using the sol-gel method. The formation of silica aerogels was confirmed using FT-IR, SEM, TEM, BET and BJH methods. Thermal stability and hydrophilicity of silica aerogels were investigated by TGA and contact angle measurement, respectively. Then, composites including an equal amount of anti-corrosion of alkyd resin-zinc Chromate containing weight percentages 0, 1, 5, 10, 20, 30, 40 and 50 were prepared from silica aerogels. The thermal conductivity of the composites was measured in a liquid state. The results indicated a significant decrease in the thermal conductivity by increasing the weight percentage of silica aerogel. The composite adherence was then evaluated. Composites with the highest amount of aerogel with proper adherence according to the standard set by the National Gas Company of Isfahan province, along with paint thinner for dilution and colorless cobalt drier, were coated on aluminum plates of thickness of 1.2 mm and the thermal conductivity of the film was measured in dry state. The results of this study showed that the composite containing 30% by weight of silica aerogel and B5 adherence had the least thermal conductivity and it can be used as a thermal insulation of various equipment in the gas industries.http://www.sciencedirect.com/science/article/pii/S2666845923000673Silica aerogelThermal insulationAdherenceCompositeGas industries |
| spellingShingle | Asma Zare Hassan Hadadzadeh A silica aerogel-based thermal insulation composite film for metal surfaces in gas industries Results in Surfaces and Interfaces Silica aerogel Thermal insulation Adherence Composite Gas industries |
| title | A silica aerogel-based thermal insulation composite film for metal surfaces in gas industries |
| title_full | A silica aerogel-based thermal insulation composite film for metal surfaces in gas industries |
| title_fullStr | A silica aerogel-based thermal insulation composite film for metal surfaces in gas industries |
| title_full_unstemmed | A silica aerogel-based thermal insulation composite film for metal surfaces in gas industries |
| title_short | A silica aerogel-based thermal insulation composite film for metal surfaces in gas industries |
| title_sort | silica aerogel based thermal insulation composite film for metal surfaces in gas industries |
| topic | Silica aerogel Thermal insulation Adherence Composite Gas industries |
| url | http://www.sciencedirect.com/science/article/pii/S2666845923000673 |
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