Investigation on the mechanical and fracture properties of lightweight pumice epoxy composites
Pumice, which is prevalent in Ethiopia, is formed naturally during the quick cooling and solidifying of molten lava. Pumice is a naturally occurring mineral that, due to its high thermal resistance and lightweightness, can be an excellent candidate for reinforcing material for polymers. The present...
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John Wiley and Sons Inc
2025
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| author | Shahapurkar K. Zelalem Y.M. Chenrayan V. Soudagar M.E.M. Fouad Y. Kalam M.A. Kiran M.C. |
| author2 | 57196344622 |
| author_facet | 57196344622 Shahapurkar K. Zelalem Y.M. Chenrayan V. Soudagar M.E.M. Fouad Y. Kalam M.A. Kiran M.C. |
| author_sort | Shahapurkar K. |
| building | UNITEN Library |
| collection | Institutional Repository |
| content_provider | Universiti Tenaga Nasional |
| content_source | UNITEN Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | Pumice, which is prevalent in Ethiopia, is formed naturally during the quick cooling and solidifying of molten lava. Pumice is a naturally occurring mineral that, due to its high thermal resistance and lightweightness, can be an excellent candidate for reinforcing material for polymers. The present study investigates epoxy-based composites reinforced with pumice particles by varying the pumice content (0, 10, 20, and 30 vol%). The densities of all composites reduce in comparison with neat epoxy as the volume proportion of pumice increases credited to the low density pumice particles. Tensile stress?strain curves depict neat epoxy with higher deformation than other pumice particulate-filled composites in the linear elastic area followed by rapid brittle failure. Tensile modulus of all the composites increases in the range of 13%?67% in comparison with neat epoxy. The compressive characteristics of composites are greatly improved by the addition of pumice. Compressive moduli and specific compressive moduli of all composites increase with increasing volume fraction of pumice by 54%?58% and 65%?93%, respectively, in comparison with neat epoxy. The fracture toughness of P-10, P-20, and P-30 composites improved by 18%, 54%, and 59%, respectively, as compared with neat epoxy mainly attributed to the foam-like structure of pumice particles. SEM micrographs are used to analyze the morphology of compression-tested specimens. Property mapping highlights the advantages of utilizing composites from present work over numerous syntactic foams. ? 2023 Society of Plastics Engineers. |
| format | Article |
| id | my.uniten.dspace-36749 |
| institution | Universiti Tenaga Nasional |
| publishDate | 2025 |
| publisher | John Wiley and Sons Inc |
| record_format | dspace |
| spelling | my.uniten.dspace-367492025-03-03T15:44:23Z Investigation on the mechanical and fracture properties of lightweight pumice epoxy composites Shahapurkar K. Zelalem Y.M. Chenrayan V. Soudagar M.E.M. Fouad Y. Kalam M.A. Kiran M.C. 57196344622 58750254800 57197452830 57194384501 6603123645 55103352400 57199645719 Brittle fracture Elastic moduli Foams Fracture toughness Compression Compressive moduli Epoxy Epoxy composite Ethiopia High thermal Mechanical and fracture properties Naturally occurring Reinforcing materials Tensile Ductile fracture Pumice, which is prevalent in Ethiopia, is formed naturally during the quick cooling and solidifying of molten lava. Pumice is a naturally occurring mineral that, due to its high thermal resistance and lightweightness, can be an excellent candidate for reinforcing material for polymers. The present study investigates epoxy-based composites reinforced with pumice particles by varying the pumice content (0, 10, 20, and 30 vol%). The densities of all composites reduce in comparison with neat epoxy as the volume proportion of pumice increases credited to the low density pumice particles. Tensile stress?strain curves depict neat epoxy with higher deformation than other pumice particulate-filled composites in the linear elastic area followed by rapid brittle failure. Tensile modulus of all the composites increases in the range of 13%?67% in comparison with neat epoxy. The compressive characteristics of composites are greatly improved by the addition of pumice. Compressive moduli and specific compressive moduli of all composites increase with increasing volume fraction of pumice by 54%?58% and 65%?93%, respectively, in comparison with neat epoxy. The fracture toughness of P-10, P-20, and P-30 composites improved by 18%, 54%, and 59%, respectively, as compared with neat epoxy mainly attributed to the foam-like structure of pumice particles. SEM micrographs are used to analyze the morphology of compression-tested specimens. Property mapping highlights the advantages of utilizing composites from present work over numerous syntactic foams. ? 2023 Society of Plastics Engineers. Final 2025-03-03T07:44:23Z 2025-03-03T07:44:23Z 2024 Article 10.1002/pen.26597 2-s2.0-85178905581 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85178905581&doi=10.1002%2fpen.26597&partnerID=40&md5=878b16ba1d5319c4a433dd29b0e9fab8 https://irepository.uniten.edu.my/handle/123456789/36749 64 3 1071 1082 John Wiley and Sons Inc Scopus |
| spellingShingle | Brittle fracture Elastic moduli Foams Fracture toughness Compression Compressive moduli Epoxy Epoxy composite Ethiopia High thermal Mechanical and fracture properties Naturally occurring Reinforcing materials Tensile Ductile fracture Shahapurkar K. Zelalem Y.M. Chenrayan V. Soudagar M.E.M. Fouad Y. Kalam M.A. Kiran M.C. Investigation on the mechanical and fracture properties of lightweight pumice epoxy composites |
| title | Investigation on the mechanical and fracture properties of lightweight pumice epoxy composites |
| title_full | Investigation on the mechanical and fracture properties of lightweight pumice epoxy composites |
| title_fullStr | Investigation on the mechanical and fracture properties of lightweight pumice epoxy composites |
| title_full_unstemmed | Investigation on the mechanical and fracture properties of lightweight pumice epoxy composites |
| title_short | Investigation on the mechanical and fracture properties of lightweight pumice epoxy composites |
| title_sort | investigation on the mechanical and fracture properties of lightweight pumice epoxy composites |
| topic | Brittle fracture Elastic moduli Foams Fracture toughness Compression Compressive moduli Epoxy Epoxy composite Ethiopia High thermal Mechanical and fracture properties Naturally occurring Reinforcing materials Tensile Ductile fracture |
| url_provider | http://dspace.uniten.edu.my/ |