Fabrication of a silica aerogel and examination of its hydrophobic properties via contact angle and 3M water repellency tests
Presentation
Paper/Presentation Title | Fabrication of a silica aerogel and examination of its hydrophobic properties via contact angle and 3M water repellency tests |
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Presentation Type | Presentation |
Authors | Javazmi, Leila (Author), Khoddami, Akbar (Author), Mazrouei-Sebdani, Zahra (Author), Shams-Ghahfarokhi, Farzaneh (Author) and Low, Tobias (Author) |
Journal or Proceedings Title | IOP Conference Series: Materials Science and Engineering |
Journal Citation | 204, pp. 137-141 |
Number of Pages | 6 |
Year | 2017 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 1757-8981 |
1757-899X | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/1757-899X/204/1/012014 |
Web Address (URL) of Paper | https://iopscience.iop.org/article/10.1088/1757-899X/204/1/012014 |
Web Address (URL) of Conference Proceedings | https://iopscience.iop.org/issue/1757-899X/204/1 |
Conference/Event | 2017 5th International Conference on Nano and Materials Engineering (ICNME 2017) |
Event Details | 2017 5th International Conference on Nano and Materials Engineering (ICNME 2017) Event Date 01 to end of 03 Apr 2017 Event Location Bali, Indonesia |
Abstract | Aerogels are dry gels with a very high specific pore volume. Aerogels with increased hydrophobicity have significant potential to expand their use as lightweight materials. Considering its special nanostructure and exceptional properties, this paper focuses on the synthesis and hydrophobic evaluation of a silica aerogel. The structural properties were investigated by measuring density, SEM micrographs, and BET analyses. Also, the hydrophobic evaluation was carried out by measuring 3M water repellency and water/alcohol contact angle. The BET analysis showed successful synthesis of the nanoporous silica aerogel with a pore size of 24 nm and porosity of 89%. The synthesized aerogel showed 3M water repellency of 3 and water contact angle of 129.6˚. Also, it is worth-mentioning that as the alcohol content of the drops in 3M water repellency test is increased, the drop contact angle is decreased due to its lower surface tension. Thus, the contact angle reaches the zero at 3M water repellency test number of 4 (water/alcohol 60/40). |
Keywords | silica aerogel, gel, contact angle, water/alcohol, 3M water repellency tests |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401699. Materials engineering not elsewhere classified |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | School of Mechanical and Electrical Engineering |
Isfahan University of Technology, Iran | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4407/fabrication-of-a-silica-aerogel-and-examination-of-its-hydrophobic-properties-via-contact-angle-and-3m-water-repellency-tests
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