TY - JOUR
T1 - Experimental investigation of mechanical sustainability and acoustic performance of fly ash cenosphere/epoxy polymer composites
AU - Hegde, Sriharsha
AU - Padmaraj, N. H.
AU - Siddesh, V.
AU - Sunaya, T. S.
AU - Adithya Kini, K.
AU - Sanil, Vishal K.
N1 - Funding Information:
The authors would like to acknowledge Advanced Composite Lab and Vibration and Acoustic Lab at Department of Aeronautical and Automobile Engineering, Manipal Institute of Technology, MAHE, Manipal, for the support provided for the fabrication and testing facility of composite materials.
Publisher Copyright:
© 2021 The Authors
PY - 2021
Y1 - 2021
N2 - Hollow spherical fly ash Cenosphere is a by-product of Coal firing process in thermal power plants and nowadays has become a substitute for the other organic fillers in the composite industry. The present study investigates the mechanical and acoustic performance of Cenosphere/Epoxy based polymer composites. Void content, Shore Hardness, Tensile, Flexural, Impact and Acoustic studies were conducted on Epoxy specimens containing 0, 3, 5 and 7% of Cenosphere by weight. Surface morphology and failure pattern of the tensile failure samples were performed by using scanning electron microscope technique. Incorporation of Cenosphere into Epoxy reduced the void content from 4.27 to 2.54 % and increased the Shore hardness from 80.8 ± 1.44 to 85.8 ± 1.78 when the filler content was increased from 3 to 5%. Impact strength, Tensile and Flexural modulus showed an incremental trend with the increase of weight percentage of Cenosphere. Examination of tensile failure surface showed presence of twist hackles and better interlocking of Cenosphere with Epoxy matrix. Density of the specimens played vital role in sound absorption characteristics. Addition of Cenosphere in Epoxy deteriorates the sound absorption behaviour of the material as compared to neat Epoxy.
AB - Hollow spherical fly ash Cenosphere is a by-product of Coal firing process in thermal power plants and nowadays has become a substitute for the other organic fillers in the composite industry. The present study investigates the mechanical and acoustic performance of Cenosphere/Epoxy based polymer composites. Void content, Shore Hardness, Tensile, Flexural, Impact and Acoustic studies were conducted on Epoxy specimens containing 0, 3, 5 and 7% of Cenosphere by weight. Surface morphology and failure pattern of the tensile failure samples were performed by using scanning electron microscope technique. Incorporation of Cenosphere into Epoxy reduced the void content from 4.27 to 2.54 % and increased the Shore hardness from 80.8 ± 1.44 to 85.8 ± 1.78 when the filler content was increased from 3 to 5%. Impact strength, Tensile and Flexural modulus showed an incremental trend with the increase of weight percentage of Cenosphere. Examination of tensile failure surface showed presence of twist hackles and better interlocking of Cenosphere with Epoxy matrix. Density of the specimens played vital role in sound absorption characteristics. Addition of Cenosphere in Epoxy deteriorates the sound absorption behaviour of the material as compared to neat Epoxy.
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U2 - 10.1016/j.jksues.2021.11.002
DO - 10.1016/j.jksues.2021.11.002
M3 - Article
AN - SCOPUS:85120652374
SN - 1018-3639
JO - Journal of King Saud University - Engineering Sciences
JF - Journal of King Saud University - Engineering Sciences
ER -
