Fabrication of a silica aerogel and examination of its hydrophobic properties via contact angle and 3M water repellency tests

Presentation

Javazmi, Leila, Khoddami, Akbar, Mazrouei-Sebdani, Zahra, Shams-Ghahfarokhi, Farzaneh and Low, Tobias. 2017. "Fabrication of a silica aerogel and examination of its hydrophobic properties via contact angle and 3M water repellency tests." 2017 5th International Conference on Nano and Materials Engineering (ICNME 2017). Bali, Indonesia 01 - 03 Apr 2017 United States. Informa UK(IOP Books). https://doi.org/10.1088/1757-899X/204/1/012014
Paper/Presentation Title

Fabrication of a silica aerogel and examination of its hydrophobic properties via contact angle and 3M water repellency tests

Presentation TypePresentation
AuthorsJavazmi, Leila (Author), Khoddami, Akbar (Author), Mazrouei-Sebdani, Zahra (Author), Shams-Ghahfarokhi, Farzaneh (Author) and Low, Tobias (Author)
Journal or Proceedings TitleIOP Conference Series: Materials Science and Engineering
Journal Citation204, pp. 137-141
Number of Pages6
Year2017
PublisherInforma UK(IOP Books)
Place of PublicationUnited States
ISSN1757-8981
1757-899X
Digital Object Identifier (DOI)https://doi.org/10.1088/1757-899X/204/1/012014
Web Address (URL) of Paperhttps://iopscience.iop.org/article/10.1088/1757-899X/204/1/012014
Web Address (URL) of Conference Proceedingshttps://iopscience.iop.org/issue/1757-899X/204/1
Conference/Event2017 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).

Keywordssilica aerogel, gel, contact angle, water/alcohol, 3M water repellency tests
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 2020401699. Materials engineering not elsewhere classified
Public Notes

File reproduced in accordance with the copyright policy of the publisher/author.

Byline AffiliationsSchool of Mechanical and Electrical Engineering
Isfahan University of Technology, Iran
Institution of OriginUniversity of Southern Queensland
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