Synthesis and Characterization of Fibre Reinforced Silica Aerogel Blankets for Thermal Protection
Joint Authors
Chakraborty, S.
Pisal, A. A.
Kothari, V. K.
Venkateswara Rao, A.
Source
Advances in Materials Science and Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-05-09
Country of Publication
Egypt
No. of Pages
8
Abstract EN
Using tetraethoxysilane (TEOS) as the source of silica, fibre reinforced silica aerogels were synthesized via fast ambient pressure drying using methanol (MeOH), trimethylchlorosilane (TMCS), ammonium fluoride (NH4F), and hexane.
The molar ratio of TEOS/MeOH/(COOH)2/NH4F was kept constant at 1 : 38 : 3.73 × 10−5 : 0.023 and the gel was allowed to form inside the highly porous meta-aramid fibrous batting.
The wet gel surface was chemically modified (silylation process) using various concentrations of TMCS in hexane in the range of 1 to 20% by volume.
The fibre reinforced silica aerogel blanket was obtained subsequently through atmospheric pressure drying.
The aerogel blanket samples were characterized by density, thermal conductivity, hydrophobicity (contact angle), and Scanning Electron Microscopy.
The radiant heat resistance of the aerogel blankets was examined and compared with nonaerogel blankets.
It has been observed that, compared to the ordinary nonaerogel blankets, the aerogel blankets showed a 58% increase in the estimated burn injury time and thus ensure a much better protection from heat and fire hazards.
The effect of varying the concentration of TMCS on the estimated protection time has been examined.
The improved thermal stability and the superior thermal insulation of the flexible aerogel blankets lead to applications being used for occupations that involve exposure to hazards of thermal radiation.
American Psychological Association (APA)
Chakraborty, S.& Pisal, A. A.& Kothari, V. K.& Venkateswara Rao, A.. 2016. Synthesis and Characterization of Fibre Reinforced Silica Aerogel Blankets for Thermal Protection. Advances in Materials Science and Engineering،Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1096047
Modern Language Association (MLA)
Chakraborty, S.…[et al.]. Synthesis and Characterization of Fibre Reinforced Silica Aerogel Blankets for Thermal Protection. Advances in Materials Science and Engineering No. 2016 (2016), pp.1-8.
https://search.emarefa.net/detail/BIM-1096047
American Medical Association (AMA)
Chakraborty, S.& Pisal, A. A.& Kothari, V. K.& Venkateswara Rao, A.. Synthesis and Characterization of Fibre Reinforced Silica Aerogel Blankets for Thermal Protection. Advances in Materials Science and Engineering. 2016. Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1096047
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1096047