Carbon Fiber—Silica Aerogel Composite with Enhanced Structural and Mechanical Properties Based on Water Glass and Ambient Pressure Drying
The article presents the synthesis of silica aerogel from a much cheaper precursor of water glass that was reinforced with short pitch carbon fiber by way of ambient pressure drying. Before being added to the silica gel, the carbon fibers were surface modified to increase adhesion at the interfacial...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/2/258 |
| _version_ | 1797409391342780416 |
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| author | Agnieszka Ślosarczyk |
| author_facet | Agnieszka Ślosarczyk |
| author_sort | Agnieszka Ślosarczyk |
| collection | DOAJ |
| description | The article presents the synthesis of silica aerogel from a much cheaper precursor of water glass that was reinforced with short pitch carbon fiber by way of ambient pressure drying. Before being added to the silica gel, the carbon fibers were surface modified to increase adhesion at the interfacial border. We were able to obtain stable structures of the composite with the amount of fibers above 10% by volume. The presence of fibers in the silica matrix resulted in lower synthesis time of the composite, improved adhesion of fibers to the aerogel nanostructure, and increased mechanical and structural parameters. An additional effect of the presence of fibers in excess of 10% by volume was a new function of the nanocomposite—the ability to conduct electric current. The most optimal parameters of the composite, however, were obtained for silica aerogel reinforced with 10 vol.% of carbon fibers. This material indicated relatively low density and good physical parameters. The paper also analyzes the results on the synthesis of fiber-reinforced silica aerogels that have appeared in recent years and compares these to the results gained in presented work. |
| first_indexed | 2024-03-09T04:13:56Z |
| format | Article |
| id | doaj.art-4bde45bd36254516a62a0932d7080f87 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T04:13:56Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-4bde45bd36254516a62a0932d7080f872023-12-03T13:56:44ZengMDPI AGNanomaterials2079-49912021-01-0111225810.3390/nano11020258Carbon Fiber—Silica Aerogel Composite with Enhanced Structural and Mechanical Properties Based on Water Glass and Ambient Pressure DryingAgnieszka Ślosarczyk0Institute of Building Engineering, Faculty of Civil and Transport Engineering, Poznan University of Technology, Piotrowo 3, 60-965 Poznań, PolandThe article presents the synthesis of silica aerogel from a much cheaper precursor of water glass that was reinforced with short pitch carbon fiber by way of ambient pressure drying. Before being added to the silica gel, the carbon fibers were surface modified to increase adhesion at the interfacial border. We were able to obtain stable structures of the composite with the amount of fibers above 10% by volume. The presence of fibers in the silica matrix resulted in lower synthesis time of the composite, improved adhesion of fibers to the aerogel nanostructure, and increased mechanical and structural parameters. An additional effect of the presence of fibers in excess of 10% by volume was a new function of the nanocomposite—the ability to conduct electric current. The most optimal parameters of the composite, however, were obtained for silica aerogel reinforced with 10 vol.% of carbon fibers. This material indicated relatively low density and good physical parameters. The paper also analyzes the results on the synthesis of fiber-reinforced silica aerogels that have appeared in recent years and compares these to the results gained in presented work.https://www.mdpi.com/2079-4991/11/2/258silica aerogelwater glassambient pressure drying APDcarbon microfibers: structural and mechanical properties |
| spellingShingle | Agnieszka Ślosarczyk Carbon Fiber—Silica Aerogel Composite with Enhanced Structural and Mechanical Properties Based on Water Glass and Ambient Pressure Drying Nanomaterials silica aerogel water glass ambient pressure drying APD carbon microfibers: structural and mechanical properties |
| title | Carbon Fiber—Silica Aerogel Composite with Enhanced Structural and Mechanical Properties Based on Water Glass and Ambient Pressure Drying |
| title_full | Carbon Fiber—Silica Aerogel Composite with Enhanced Structural and Mechanical Properties Based on Water Glass and Ambient Pressure Drying |
| title_fullStr | Carbon Fiber—Silica Aerogel Composite with Enhanced Structural and Mechanical Properties Based on Water Glass and Ambient Pressure Drying |
| title_full_unstemmed | Carbon Fiber—Silica Aerogel Composite with Enhanced Structural and Mechanical Properties Based on Water Glass and Ambient Pressure Drying |
| title_short | Carbon Fiber—Silica Aerogel Composite with Enhanced Structural and Mechanical Properties Based on Water Glass and Ambient Pressure Drying |
| title_sort | carbon fiber silica aerogel composite with enhanced structural and mechanical properties based on water glass and ambient pressure drying |
| topic | silica aerogel water glass ambient pressure drying APD carbon microfibers: structural and mechanical properties |
| url | https://www.mdpi.com/2079-4991/11/2/258 |
| work_keys_str_mv | AT agnieszkaslosarczyk carbonfibersilicaaerogelcompositewithenhancedstructuralandmechanicalpropertiesbasedonwaterglassandambientpressuredrying |