FLY ASH-BASED AEROGEL REINFORCED WITH POLYESTER FIBRES FOR REMARKABLE THERMAL AND ACOUSTIC PROPERTIES
Keywords:
aerogel, fibre, insulation properties, acoustic, fly ash, psyllium husk
Abstract
A nonconventional material with remarkable thermal and acoustic insulation properties from aerogels category was experimentally made. Produced from a recycled commercial waste (polyethylene terephthalate-PET) and an industrial by-product (fly ash) as well as a biomaterial (psyllium husk) used for the first time as a binder by mixing with water, the aerogel was subjected to a freeze-drying process. The determination of the product characteristics highlighted extremely low densities (0.022-0.041 g· cm-3), very low thermal conductivities (0.035-0.037 W·m-1·K-1), very high porosities (97.8-98.5 %), mechanical properties superior to those of an unreinforced gel (compression strength of 9.5-16.4 kPa and Young's modulus of 4.15-18.93 kPa), and excellent noise absorption properties (noise reduction coefficient of 0.30-0.33). The manufacturing process of this inexpensive product allows for a clean environment.
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2. Aegerter, M.A., Leventis, N., Koebel, M.M., Aerogels Handbook, Springer Publishing, (2011). ISBN 978-1-4419-7477-8.
3. Solimani, A., Abbasi, M., Silica aerogel; Synthesis, properties and characterization, Journal of Materials Processing Technology, Vol. 199, No. 1-3, pp. 10-26, (2008). https://doi.org/10.1016/j.jmatprotec.2007.10.060
4. Worsley, M.A., Baumann, T.F., Carbon aerogels, in Handbook of Sol-Gel Science and Technology, (2016). https://doi.org/10.1007/978-3-319-19454-7_90-1
5. Tran, T.D., Nguyen, S.T., Do, N.D., Thai, N.T.N., Thai, Q.B., Huynh, H.K.P., Nguyen, V.T.T., Phan, A.N., Green aerogels from rice straw for thermal, acoustic insulation and oil spill cleaning applications, Materials Chemistry and Physics, Vol. 253, (2020). https://doi.org/10.1016/j.matchemphys.2020.123363
6. Cao, O.T.H., Thibthong, P.P., Thai, Q.B., Tran, T.D., Huynh, H.K.P., Nguyen, S.T., Composite aerogel for heat insulation, Chemical Engineering Transactions, Vol. 78, (2020). https://doi.org/10.3303/CET2078061
7. Yam, B.J.Y., Le, D.K., Do, N.H., Nguyen, P.T.T., Thai, Q.B., Thien, N.P., Doung, H.M., Recycling of magnesium waste into magnesium hydroxide aerogels, Journal of Environmental Chemical Engineering, Vol. 8, No. 5, 104101, (2020). https://doi.org/10.1016/j.jece.2020.104101
8. Pierre, A.C., Pajouk, G.M., Chemistry of aerogels and their applications, Chemistry Reviews, Vol. 102, pp. 4243-4265, (2002).
9. Thai, Q.B., Chong, R.O., Nguyen P.T.T., Le, D.K., Recycling of waste tire fibers into advanced aerogels for thermal insulation and sound absorption applications, Journal of Environmental Chemical Engineering, Vol. 8, No. 5, 104279, (2020). https://doi.org/10.1016/j.jece.2020.104279
10. Do, N.H.N., Le, T.M., Tran, H.Q., Pham, N.Q., Le, K.A., Nguyen, P.T.T., Duong, H.M., Le, T.A., Le, P.K., Green recycling of fly ash into heat and sound insulation composite aerogels reinforced by recycled polyethylene terephthalate fibers, Journal of Cleaner Production, Vol. 322, Elsevier Publishing, (2021). https://doi.org/10.1016/j.jclepro.2021.129138
11. Duong, H.M., Ling, N.R.B., Thai, Q.B., Le, D.K., Nguyen, P.T.T., Goh, X.Y., Thien, N.P., A novel aerogel from thermal power plant waste fot thermal and acoustic insulation applications, Waste Management, Vol. 124, pp. 1-7, Elsevier Publishing, (2021). https://doi.org/10.1016/j.wasman.2021.01.031
12. Liu, Y.H., Xu, J.Q., Ding, H.J., Mechanical behaviour of a fiber end in short fiber reinforced composites, International Journal of Engineering Science, Vol. 37, No. 6, pp. 753-770, (1999). https://doi.org/10.1016/S0020-7225(98)0096-8
13. John, B., Reghunadhan Nair, C.P., Syntactic foams in Handbook of Thermoset Plastics, 3rd edition, Dodiuk, H., Goodman, S.H. eds., Elsevier Publishing, pp. 511-554, (2014), ISBN 978-1-4557-3107-7.
14. Lamy-Mendes, A., Rodrigues Pontinha, A.D., Santos, P., Durães, L., Aerogel composites produced from silica and recycled rubber sols for thermal insulation, Materials, Vol. 15, pp. 1-14, (2022). https://doi.org/10.3390/ma15227897
15. Kang, J., Cui, S.W., Other emerging gums: Flaxseed gum, yellow mustard gum, and psyllium gums, in Handbook of Hydrocolloids, 3rd edition, Phillips, G., Williams, P. eds., Elsevier Publishing, (2021), ISBN 9780128201046
16. Metrology in laboratory-Measurement of mass and derived values, in: Radwag Balances and Scales, 2nd edition, Radom, Poland, pp. 72-73, (2015).
17. Anovitz, L.M., Cole, D.R., Characterization and analysis of porosity and pore structures, Reviews in Mineralogy and Geochemistry, Vol. 80, No. 1, pp. 61-164, (2015). https://doi.org/10.2138/rmg.2015.80.04
18. Voigner, T., Primera, J., Alaoui, A., Despetis, F., Etienne-Calas, S.E., Faivre, A., Duffours, L., Levelut, C., Etienne, P., Techniques for characterizing the mechanical properties of samples, Journal of Sol-Gel Science and Technology, Vol. 93, No. 1, pp. 6-27, (2020). https://doi.org/10.1007/s10971-019-05173-2
19. Acoustic and thermal insulating materials, in Building Decorative Materials, Li, Y., Ren, S. eds., pp. 359-374, (2011).
Published
2023-03-31
How to Cite
Paunescu, L., Volceanov, E., Paunescu, B., & Ioana, A. (2023). FLY ASH-BASED AEROGEL REINFORCED WITH POLYESTER FIBRES FOR REMARKABLE THERMAL AND ACOUSTIC PROPERTIES. Nonconventional Technologies Review, 27(1). Retrieved from http://revtn.ro/index.php/revtn/article/view/406
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Articles
Copyright (c) 2023 Lucian Paunescu, Eniko Volceanov, Bogdan Valentin Paunescu, Adriana Ioana
This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.
