Insulation performance of the coconut husk advancing aerogel for building material
The urgency for energy-efficient in buildings, urges the search for the alternative sustainable insulation material to substitute the. conventional environmentally detrimental options made from synthetic polymers, fiberglass or rock wool. Biomass resources with their inherent insulating properties...
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| Main Authors: | , , , , , , |
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| Format: | Conference or Workshop Item |
| Language: | en |
| Published: |
IOP Publishing Ltd.
2025
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| Subjects: | |
| Online Access: | https://umpir.ump.edu.my/id/eprint/46571/1/Bakhari_2025_IOP_Conf._Ser.__Earth_Environ._Sci._1548_012017%20%281%29.pdf https://umpir.ump.edu.my/id/eprint/46571/ https://iopscience.iop.org/article/10.1088/1755-1315/1548/1/012017 |
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| Summary: | The urgency for energy-efficient in buildings, urges the search for the alternative sustainable insulation material to substitute the. conventional environmentally detrimental options made from synthetic polymers, fiberglass or rock wool. Biomass resources with their inherent insulating properties present a promising alternative in recent studies. To enhance the biomass’s insulation performance, advancing the biomass into aerogel form has become attractive owing to its low density and thermal conductivity. In this study, the fabrication of coconut husk aerogel for its thermal insulation capacity is investigated under the varying concentration of the coconut husk mix with constant concentration of sodium alginate and phytic acid. The morphological and chemical composition of the coconut husk aerogel were analysed using scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDX), Brunauer–Emmett–Teller (BET) and Fourier-transform infrared (FTIR) spectroscopy. The result depicted the increment of the 20% for the porous structure while the FTIR and EDX data exhibits the decreasing of the carbon and oxygen content averagely 25% confirming the cross-linking from the additives. Measurement of the thermal conductivity were performed to quantitatively assess the insulation properties, with an average thermal conductivity of approximately 0.15 W/m.K. This value is markedly lower than the wood material (0.4 W/m.K) highlighting the superior insulation of the coconut husk aerogel. Conversely, 10% of the coconut husk in coconut husk aerogel production was attributed with the increased density and decreased porosity of the material ultimately diminishing its insulating properties. This finding further supports the effectiveness of the other formulations. |
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