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1860797472702464000
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INTELEK Repository
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Online Access
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https://intelek.unisza.edu.my/intelek/pages/search.php?search=!collection407072
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2016-01-12 12:33:05
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Restricted Document
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12853
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UniSZA
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Abdullah A, Jamaludin SB, Noor MM, Hussin K. Composite cement reinforced coconut fiber: physical and mechanical properties and fracture behavior. Australian Journal of Basic and Applied Sciences 2011; 5(7): 1228-40. Abdullah H, Zanal A, Taib MN, Noordin IRM, Ali WKW, Ariffin R, Abdullah S, Baharudin R, Abdullah AT. Microwave absorber coating material using oil palm ash. Advance Materials Research 2012; 512(514): 1941-44. Che BD, Nguyen BQ, Nguyen LT, Nguyen HT, Nguyen VQ, Van Le TV, Nguyen NH. The impact of different multi-walled carbon nanotubes on the X-band microwave absorption of their epoxy nanocomposites. Chemistry Central Journal 2015; 9(10): 1-13. Datta AK, Sumnu G, Raghavan GSV. Dielectric properties of foods. In: Engineering properties of foods (Eds: Rao MA, Rizvi SSH, Datta AK). 3rd ed. CRC Press, Taylor & Francis Group, Florida, USA. 2005; 501-10. Folgueras LC, Alves MA, Rezende MC. Evaluation of a nanostructured microwave absorbent coating applied to a glass fiber/polyphenylene sulfide laminated composite. Materials Research 2014; 17 (1): 197-202. Iqbal MN, Malek MF, Lee YS, Zahid L, Mezan MS. A study of the anechoic performance of rice husk-based, geometrically tapered, hollow absorbers. International Journal of Antennas and Propagation. 2014; 2014: 1-9. Langner A, Müller F, Gösele U. Macroporous silicon. In: Molecular-and nano-tubes (Eds: Hayden O, Nielsch K). Springer Science and Business Media, New York, USA. 2011; 431-60. Lee YS, Malek MFBA, Cheng EM, Liu WW, You KY, Iqbal MN, Wee FH, Khor SF, Zahid L, Haji Abd Malek MFB. Experimental determination of the performance of rice husk-carbon nanotube composites for absorbing microwave signals in the frequency range of 12.4-18 GHz. Progress In Electromagnetics Research 2013; 140: 795-812. Liu X, Zhang Z, Wu Y. Absorption properties of carbon black/silicon carbide microwave absorbers. Composites Part B: Engineering 2011; 42(2): 326-29. Malek MFBA, Cheng EM, Nadiah O, Nornikman H, Ahmed M, Abdul Aziz MZA, Othman AR, Soh PJ, Azremi AAAH, Hasnain A, Taib MN. Rubber tire dust-rice husk pyramidal microwave absorber. Progress In Electromagnetics Research 2011; 117: 449-77. McCusker LB, Liebau F, Engelhardt G. Nomenclature of structural and compositional characteristics of ordered microporous and mesoporous materials with inorganic hosts (IUPAC Recommendations 2001). Pure and Applied Chemistry 2001; 73(2): 381-94. Menéndez JA, Arenillas A, Fidalgo B, Fernández Y, Zubizarreta L, Calvo EG, Bermúdez JM. Microwave heating processes involving carbon materials. Fuel Processing Technology 2010; 91(1): 1-8. Micheli D, Apollo C, Gradoni G, Marchetti M, Morles RB, Pastore R. Electromagnetic characterization of composite materials and microwave absorbing modeling. In: Advances in nanocomposites-synthesis, characterization and industrial applications (Ed: Reddy B). Intechopen, Croatia. 2011; 359-84. Nornikman H, Malek MFBA, Soh PJ, Azremi AAAH, Wee FH, Hasnain A. Parametric study of pyramidal microwave absorber using rice husk. Progress In Electromagnetics Research. 2010; 104: 145-66. Saini P, Arora M. Chapter 3: Microwave absorption and emi shielding behavior of nanocomposites based on intrinsically conducting polymers, graphene and carbon nanotubes. In: New polymers for special applications (Ed: Gomez ADS). Intechopen, Crotia. 2012; 71-112. Sulaiman S, Aziz ARA, Aroua MK. Reactive extraction of solid coconut waste to produce biodiesel. Journal of the Taiwan Institute of Chemical Engineers 2013; 44(2): 233-38. Tong XCC. Absorber materials. In: Advanced materials and design for electromagnetic interference shielding (Ed: Tong XCC). CRC Press, Taylor & Francis Group, Florida, USA. 2009: 237-54. Wan Ab Karim WA, Abdullah MSF, Matori KA, Alias AB, Gabriel da Silva. Physical and thermochemical characterisation of Malaysian biomass ashes. Journal-The Institution of Engineers, Malaysia 2010; 71(3): 9-18. Zahid L, Malek F, Nornikman H, Mohd Affendi NA, Ali A, Hussin N, Ahmad BH, Abdul Aziz MZA. Deveopment of pyramidal microwave absorber using sugar cane bagasse (SCB). Progress In Electromagnetics Research 2013; 137: 687-702
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7160-01-FH02-FSTK-16-04931.jpg
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norman
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oai_dc
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https://intelek.unisza.edu.my/intelek/pages/view.php?ref=12853
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12853 https://intelek.unisza.edu.my/intelek/pages/view.php?ref=12853 https://intelek.unisza.edu.my/intelek/pages/search.php?search=!collection407072 Restricted Document Article Journal image/jpeg inches 96 96 norman 1415 762 16 16 2016-01-12 12:33:05 1415x762 7160-01-FH02-FSTK-16-04931.jpg UniSZA Private Access The investigation on the potential of coconut shell powder composite in term of carbon composition, surface porosity and dielectric properties as a microwave absorbing material EnvironmentAsia Agricultural wastes are renewable resources that are potentially useful as microwave absorbing materials. This paper presents the investigation on the carbon composition, surface porosity of the raw coconut shell powder particles and the dielectric properties of coconut shell powder with epoxy resin matrix composites. From CHNS elemental analysis, it was found that the carbon composition of coconut shell powder is 46.700%. Presences of macropores (≈ 2μm) were detected in the SEM analysis of the coconut shell powder particles. Measurement on dielectric properties of the coconut shell powder composites was performed by using open-ended coaxial probe method over microwave frequency range of 1-8 GHz. The overall dielectric constant (εr’) and dielectric loss factor (εr”) of the composite with ratio 50:50 were 3.56 and 0.26, ranging from 3.35-3.76 and 0.21-0.30 respectively; whereas for composite ratio 40:60, the overall dielectric constant (εr’) and dielectric loss factor (εr”) were 2.97 and 0.21, ranging from 2.74-3.17 and 0.16-0.27 respectively. The electrical conductivity calculated based on measured εr” was 0.067 and 0.054 for composite ratio 50:50 and 40:60 respectively. The dielectric properties and electrical conductivity of the coconut shell powder composites were influenced by the greater presence of high dielectric material (coconut shell powder). This experimental investigation on the potential of the coconut shell powder with epoxy resin composites indicates that the ability of the composite to absorb and convert microwave signals is dependent on the carbonaceous materials of the composite. This result offers a great opportunity to diversify the use of coconut shell powder as microwave absorbing material. 9 1 Thai Society of Higher Eduation Institutes on Environment Thai Society of Higher Eduation Institutes on Environment 9-17 Abdullah A, Jamaludin SB, Noor MM, Hussin K. Composite cement reinforced coconut fiber: physical and mechanical properties and fracture behavior. Australian Journal of Basic and Applied Sciences 2011; 5(7): 1228-40. Abdullah H, Zanal A, Taib MN, Noordin IRM, Ali WKW, Ariffin R, Abdullah S, Baharudin R, Abdullah AT. Microwave absorber coating material using oil palm ash. Advance Materials Research 2012; 512(514): 1941-44. Che BD, Nguyen BQ, Nguyen LT, Nguyen HT, Nguyen VQ, Van Le TV, Nguyen NH. The impact of different multi-walled carbon nanotubes on the X-band microwave absorption of their epoxy nanocomposites. Chemistry Central Journal 2015; 9(10): 1-13. Datta AK, Sumnu G, Raghavan GSV. Dielectric properties of foods. In: Engineering properties of foods (Eds: Rao MA, Rizvi SSH, Datta AK). 3rd ed. CRC Press, Taylor & Francis Group, Florida, USA. 2005; 501-10. Folgueras LC, Alves MA, Rezende MC. Evaluation of a nanostructured microwave absorbent coating applied to a glass fiber/polyphenylene sulfide laminated composite. Materials Research 2014; 17 (1): 197-202. Iqbal MN, Malek MF, Lee YS, Zahid L, Mezan MS. A study of the anechoic performance of rice husk-based, geometrically tapered, hollow absorbers. International Journal of Antennas and Propagation. 2014; 2014: 1-9. Langner A, Müller F, Gösele U. Macroporous silicon. In: Molecular-and nano-tubes (Eds: Hayden O, Nielsch K). Springer Science and Business Media, New York, USA. 2011; 431-60. Lee YS, Malek MFBA, Cheng EM, Liu WW, You KY, Iqbal MN, Wee FH, Khor SF, Zahid L, Haji Abd Malek MFB. Experimental determination of the performance of rice husk-carbon nanotube composites for absorbing microwave signals in the frequency range of 12.4-18 GHz. Progress In Electromagnetics Research 2013; 140: 795-812. Liu X, Zhang Z, Wu Y. Absorption properties of carbon black/silicon carbide microwave absorbers. Composites Part B: Engineering 2011; 42(2): 326-29. Malek MFBA, Cheng EM, Nadiah O, Nornikman H, Ahmed M, Abdul Aziz MZA, Othman AR, Soh PJ, Azremi AAAH, Hasnain A, Taib MN. Rubber tire dust-rice husk pyramidal microwave absorber. Progress In Electromagnetics Research 2011; 117: 449-77. McCusker LB, Liebau F, Engelhardt G. Nomenclature of structural and compositional characteristics of ordered microporous and mesoporous materials with inorganic hosts (IUPAC Recommendations 2001). Pure and Applied Chemistry 2001; 73(2): 381-94. Menéndez JA, Arenillas A, Fidalgo B, Fernández Y, Zubizarreta L, Calvo EG, Bermúdez JM. Microwave heating processes involving carbon materials. Fuel Processing Technology 2010; 91(1): 1-8. Micheli D, Apollo C, Gradoni G, Marchetti M, Morles RB, Pastore R. Electromagnetic characterization of composite materials and microwave absorbing modeling. In: Advances in nanocomposites-synthesis, characterization and industrial applications (Ed: Reddy B). Intechopen, Croatia. 2011; 359-84. Nornikman H, Malek MFBA, Soh PJ, Azremi AAAH, Wee FH, Hasnain A. Parametric study of pyramidal microwave absorber using rice husk. Progress In Electromagnetics Research. 2010; 104: 145-66. Saini P, Arora M. Chapter 3: Microwave absorption and emi shielding behavior of nanocomposites based on intrinsically conducting polymers, graphene and carbon nanotubes. In: New polymers for special applications (Ed: Gomez ADS). Intechopen, Crotia. 2012; 71-112. Sulaiman S, Aziz ARA, Aroua MK. Reactive extraction of solid coconut waste to produce biodiesel. Journal of the Taiwan Institute of Chemical Engineers 2013; 44(2): 233-38. Tong XCC. Absorber materials. In: Advanced materials and design for electromagnetic interference shielding (Ed: Tong XCC). CRC Press, Taylor & Francis Group, Florida, USA. 2009: 237-54. Wan Ab Karim WA, Abdullah MSF, Matori KA, Alias AB, Gabriel da Silva. Physical and thermochemical characterisation of Malaysian biomass ashes. Journal-The Institution of Engineers, Malaysia 2010; 71(3): 9-18. Zahid L, Malek F, Nornikman H, Mohd Affendi NA, Ali A, Hussin N, Ahmad BH, Abdul Aziz MZA. Deveopment of pyramidal microwave absorber using sugar cane bagasse (SCB). Progress In Electromagnetics Research 2013; 137: 687-702
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| spellingShingle |
The investigation on the potential of coconut shell powder composite in term of carbon composition, surface porosity and dielectric properties as a microwave absorbing material
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| summary |
Agricultural wastes are renewable resources that are potentially useful as microwave absorbing materials. This paper presents the investigation on the carbon composition, surface porosity of the raw coconut shell powder particles and the dielectric properties of coconut shell powder with epoxy resin matrix composites. From CHNS elemental analysis, it was found that the carbon composition of coconut shell powder is 46.700%. Presences of macropores (≈ 2μm) were detected in the SEM analysis of the coconut shell powder particles. Measurement on dielectric properties of the coconut shell powder composites was performed by using open-ended coaxial probe method over microwave frequency range of 1-8 GHz. The overall dielectric constant (εr’) and dielectric loss factor (εr”) of the composite with ratio 50:50 were 3.56 and 0.26, ranging from 3.35-3.76 and 0.21-0.30 respectively; whereas for composite ratio 40:60, the overall dielectric constant (εr’) and dielectric loss factor (εr”) were 2.97 and 0.21, ranging from 2.74-3.17 and 0.16-0.27 respectively. The electrical conductivity calculated based on measured εr” was 0.067 and 0.054 for composite ratio 50:50 and 40:60 respectively. The dielectric properties and electrical conductivity of the coconut shell powder composites were influenced by the greater presence of high dielectric material (coconut shell powder). This experimental investigation on the potential of the coconut shell powder with epoxy resin composites indicates that the ability of the composite to absorb and convert microwave signals is dependent on the carbonaceous materials of the composite. This result offers a great opportunity to diversify the use of coconut shell powder as microwave absorbing material.
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| title |
The investigation on the potential of coconut shell powder composite in term of carbon composition, surface porosity and dielectric properties as a microwave absorbing material
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| title_full |
The investigation on the potential of coconut shell powder composite in term of carbon composition, surface porosity and dielectric properties as a microwave absorbing material
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| title_fullStr |
The investigation on the potential of coconut shell powder composite in term of carbon composition, surface porosity and dielectric properties as a microwave absorbing material
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| title_full_unstemmed |
The investigation on the potential of coconut shell powder composite in term of carbon composition, surface porosity and dielectric properties as a microwave absorbing material
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| title_short |
The investigation on the potential of coconut shell powder composite in term of carbon composition, surface porosity and dielectric properties as a microwave absorbing material
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| title_sort |
investigation on the potential of coconut shell powder composite in term of carbon composition, surface porosity and dielectric properties as a microwave absorbing material
|