Enhanced thermal and dynamic mechanical properties of synthetic/natural hybrid composites with graphene nanoplateletes
The aim of the present research work is to enhance the thermal and dynamic mechanical properties of Kevlar/Cocos nucifera sheath (CS)/epoxy composites with graphene nano platelets (GNP). Laminates were fabricated through the hand lay-up method followed by hot pressing. GNP at different wt.% (0.25, 0...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI
2019
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| Online Access: | http://psasir.upm.edu.my/id/eprint/38349/1/38349.pdf |
| _version_ | 1825949209130434560 |
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| author | Naveen, Jesuarockiam Jawaid, Mohammad Zainudin, Edi Syams Hameed Sultan, Mohamed Thariq Yahaya, Ridwan |
| author_facet | Naveen, Jesuarockiam Jawaid, Mohammad Zainudin, Edi Syams Hameed Sultan, Mohamed Thariq Yahaya, Ridwan |
| author_sort | Naveen, Jesuarockiam |
| collection | UPM |
| description | The aim of the present research work is to enhance the thermal and dynamic mechanical properties of Kevlar/Cocos nucifera sheath (CS)/epoxy composites with graphene nano platelets (GNP). Laminates were fabricated through the hand lay-up method followed by hot pressing. GNP at different wt.% (0.25, 0.5, and 0.75) were incorporated with epoxy resin through ultra-sonication. Kevlar/CS composites with different weight ratios (100/0, 75/25, 50/50, 25/75, 0/100) were fabricated while maintaining a fiber/matrix weight ratio at 45/55. Thermal degradation and viscoelastic properties were evaluated using thermogravimetric analysys (TGA), differential scanning calorimetric (DSC) analysis, and a dynamic mechanical analyser (DMA). The obtained results revealed that Kevlar/CS (25/75) hybrid composites at 0.75 wt.% of GNP exhibited similar thermal stability compared to Kevlar/epoxy (100/0) composites at 0 wt.% of GNP. It has been corroborated with DSC observation that GNP act as a thermal barrier. However, DMA results showed that the Kevlar/CS (50/50) hybrid composites at 0.75 wt.% of GNP exhibited almost equal viscoelastic properties compared to Kevlar/epoxy (100/0) composites at 0 wt.% GNP due to effective crosslinking, which improves the stress transfer rate. Hence, this research proved that Kevlar can be efficiently (50%) replaced with CS at an optimal GNP loading for structural applications. |
| first_indexed | 2024-03-06T08:41:02Z |
| format | Article |
| id | upm.eprints-38349 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:41:02Z |
| publishDate | 2019 |
| publisher | MDPI |
| record_format | dspace |
| spelling | upm.eprints-383492020-05-04T16:20:16Z http://psasir.upm.edu.my/id/eprint/38349/ Enhanced thermal and dynamic mechanical properties of synthetic/natural hybrid composites with graphene nanoplateletes Naveen, Jesuarockiam Jawaid, Mohammad Zainudin, Edi Syams Hameed Sultan, Mohamed Thariq Yahaya, Ridwan The aim of the present research work is to enhance the thermal and dynamic mechanical properties of Kevlar/Cocos nucifera sheath (CS)/epoxy composites with graphene nano platelets (GNP). Laminates were fabricated through the hand lay-up method followed by hot pressing. GNP at different wt.% (0.25, 0.5, and 0.75) were incorporated with epoxy resin through ultra-sonication. Kevlar/CS composites with different weight ratios (100/0, 75/25, 50/50, 25/75, 0/100) were fabricated while maintaining a fiber/matrix weight ratio at 45/55. Thermal degradation and viscoelastic properties were evaluated using thermogravimetric analysys (TGA), differential scanning calorimetric (DSC) analysis, and a dynamic mechanical analyser (DMA). The obtained results revealed that Kevlar/CS (25/75) hybrid composites at 0.75 wt.% of GNP exhibited similar thermal stability compared to Kevlar/epoxy (100/0) composites at 0 wt.% of GNP. It has been corroborated with DSC observation that GNP act as a thermal barrier. However, DMA results showed that the Kevlar/CS (50/50) hybrid composites at 0.75 wt.% of GNP exhibited almost equal viscoelastic properties compared to Kevlar/epoxy (100/0) composites at 0 wt.% GNP due to effective crosslinking, which improves the stress transfer rate. Hence, this research proved that Kevlar can be efficiently (50%) replaced with CS at an optimal GNP loading for structural applications. MDPI 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/38349/1/38349.pdf Naveen, Jesuarockiam and Jawaid, Mohammad and Zainudin, Edi Syams and Hameed Sultan, Mohamed Thariq and Yahaya, Ridwan (2019) Enhanced thermal and dynamic mechanical properties of synthetic/natural hybrid composites with graphene nanoplateletes. Polymers, 11 (7). art. no. 1085. pp. 1-18. ISSN 2073-4360 https://www.mdpi.com/2073-4360/11/7/1085 10.3390/polym11071085 |
| spellingShingle | Naveen, Jesuarockiam Jawaid, Mohammad Zainudin, Edi Syams Hameed Sultan, Mohamed Thariq Yahaya, Ridwan Enhanced thermal and dynamic mechanical properties of synthetic/natural hybrid composites with graphene nanoplateletes |
| title | Enhanced thermal and dynamic mechanical properties of synthetic/natural hybrid composites with graphene nanoplateletes |
| title_full | Enhanced thermal and dynamic mechanical properties of synthetic/natural hybrid composites with graphene nanoplateletes |
| title_fullStr | Enhanced thermal and dynamic mechanical properties of synthetic/natural hybrid composites with graphene nanoplateletes |
| title_full_unstemmed | Enhanced thermal and dynamic mechanical properties of synthetic/natural hybrid composites with graphene nanoplateletes |
| title_short | Enhanced thermal and dynamic mechanical properties of synthetic/natural hybrid composites with graphene nanoplateletes |
| title_sort | enhanced thermal and dynamic mechanical properties of synthetic natural hybrid composites with graphene nanoplateletes |
| url | http://psasir.upm.edu.my/id/eprint/38349/1/38349.pdf |
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