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Elaboration and Characterization of Thermal Insulating Material Based on the Synergy of Natural Coconut Husk and Disposable Diaper Pads Fibers

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Materials based on highly porous fibers are now becoming increasingly popular as thermal insulators to fight severely increasing temperatures due to climate change (Khedari, et al., 2004). In this study, fibers from solid waste materials like coconut husk and absorbent pads of used disposable diapers were evaluated for their synergistic effect as thermal insulating material. Dried coconut husk fibers and cleaned used disposable diapers were heated at 1500C-3000C for 2 hours and then molded to make pads. Scanning Electron Microscopy and HD digital microscope were used in the analytical imaging of the fibers. Fiber pads from coconut husk fibers, used disposable diapers and their combination, and polyethylene foam (+control) were evaluated for their burning rate based on ASTM D 1992 while thermal conductivity, and thermal resistance were obtained using the testing hot box (Frawley & Kennedy, 2007). The morphology of the coconut husk fibers with used disposable diapers showed thicker and rougher surface with foamy coatings which confirmed porous fiber structure. One-Factor ANOVA showed significant difference among the different set-ups for burning rate (F=926.506; p=0.000), thermal conductivity (F=203.993; p=0.000), and thermal resistance (F=197.820; p=0.000) wherein the set-up for the combination of the coconut husk fibers and used disposable diapers exhibits satisfactory burning rate (M=3.268), lowest thermal conductivity (M=0.037) and highest thermal resistance (M=0.273).The results affirm that the natural coconut husk fibers and used disposable diapers have synergistic effect for better thermal properties, thus, producing a more effective and safer thermal insulating material.


International Journal of Engineering and Technologies (Volume 17)
L. R. A. Mascariñas et al., "Elaboration and Characterization of Thermal Insulating Material Based on the Synergy of Natural Coconut Husk and Disposable Diaper Pads Fibers", International Journal of Engineering and Technologies, Vol. 17, pp. 21-32, 2019
Online since:
May 2019

[1] R.D. Agham, Performance of Coconut Husk Mixed Polyethylene alulinum foil foam insulation sheet as an Alternative Insulating Material, International Journal of Engineering and Innovative Technology. 2(9) (2013) 100-104.

[2] S. Ersoy, H. Kucuk, Investigation of industrial tea-leaf-fiber waste material for its sound absorption properties, Applied Acoustic. 70 (2009) 215-220.


[3] E. Frawley, D. Kennedy, Thermal Testing of Building Insulation Materials, Engineers Journal. 61(9) (2007) 552-558.

[4] M. Fukushima, Y. Yoshizawa, Fabrication and morphology control of highly porous mullite thermal insulators prepared by gelation freezing route, Journal of the European Ceramic Society. (2015) 1-7.


[5] T. Ganiron, Investigation on the use of Coco Coir Polypropylene as Thermal Insulator. International Journal of Advanced Sciences and Technology. 59 (2013) 13-26.


[6] S.K. Ghosh et al., Study on Potential Application of Natural Fibre Made Fabrics as Thermal Insulation Medium. American International Journal of Research in Science, Technology, Engineering & Mathematics. 16(203) (2016) 8-13.

[7] J. Gillman, The Truth about Garden Remedies, Portland London: Timber Press, (2008).

[8] J. Khedari et al., New low-cost insulation particleboards from mixture of durian peel and coconut coir, Building and Environment. 39 (2004) 59-65.


[9] M. Lou, Y. He, Combustion Behaviour of Polyethylene aluminum foil foam insulation sheets under depleted Oxygen Environment. Center for Environmental Safety and Risk Engineering.CSIRO Building Construction and Engineering, 220.

[10] G. Manlapas, J. Banaldia, Drinking Straw and Coco Coir Fiber as Thermal Insulator: A Technology Innovation. Imperial Journal of Interdisciplinary Research (IJIR). 2(11) (2016) 1296-1301.

[11] National Materials Advisory Board-National Academy of Sciences (1980). Fire Safety Aspects of Polymeric Materials. Land Transportation Vehicles. Technomic Publishing Co.,Inc., 8,15.

[12] A. Oushabi et al., Natural thermal-insulation materials composed of renewable resources: characterization of local date palm fibers (LDPF), J. Mater. Environ. Sci. 6(12) (2015) 3395-3402.

[13] S. Pujari, T. Venkatesh, H. Seeli, Experimental Investigations on Thermal Conductivity of Fenugreek and Banana Composites. The Institution of Engineers, (2017).

[14] J.M. Robine et al., Death toll exceeded 70,000 in Europe during the summer of 2003.C R Biol. 331(2) (2008) 171-178.

[15] N.J. Rodriguez et al., Assessment of coconut fibre insulation characteristics and its use to modulate temperatures in concrete slabs with the aid of a finite element methodology, Energy and Buildings. 43 (2011) 1264-1272.


[16] R. Sanchez-Orozco et al., Valorization of superabsorbent polymers from used disposable diapers as soil moisture retainer. International Journal of Research – Granthaalayah. 5(4) (2017) 105-117.


[17] Z. Wang et al., Porous mullite thermal insulators from coal gangue fabricated by a starch-based foam gel-casting method. Australian Ceramic Society, (2017).


[18] H. Yang, J. Dae, H.J. Kim, Rice straw-wood particle composite for sound absorbing wooden construction materials, Bioresource Technology. 86 (2003) 117-121.


[19] J. Hower, S. Rochefort, E. Momsen, Disposable Diapers and SAP Activity, 2004. Available:

[20] M. Chikhi, Mourad et al., Experimental investigation of new biocomposite with low cost for thermal insulation, Energy and Buildings. 66 (2013) 267-273.


[21] M. Luo, Y. He, V. Beck, Application of field model and two-zone model to flashover fires in a full-scale multi-room single level building, Fire Safety Journal. 29(1) (1997) 1-25.


[22] Patty Hahne, Are Biodegradable Diapers Really Better For The Environment?, 2013. [Online]. Available:

[23] Agham Rahul D., State of the art insulation materials: a review, International Journal of Engineering and Innovative Technology. 2(6) (2012) 97-102.

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