Effect of hybrid multi-walled carbon nanotube and montmorillonite nanoclay content on mechanical properties of shape memory epoxy nanocomposite
| Autor: | Ain Umaira Md Shah, M. H. Mat Yazik, Syafiqah Nur Azrie Safri, Abd Rahim Abu Talib, J. Naveen, Norkhairunnisa Mazlan, Mohamed Thariq Hameed Sultan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
lcsh:TN1-997
Materials science 02 engineering and technology Carbon nanotube 01 natural sciences law.invention Biomaterials chemistry.chemical_compound Flexural strength law 0103 physical sciences Ultimate tensile strength Tensile Composite material lcsh:Mining engineering. Metallurgy Tensile testing Montmorillonite 010302 applied physics Nanocomposite MWCNT Metals and Alloys Epoxy 021001 nanoscience & nanotechnology Microstructure Hybrid Surfaces Coatings and Films Shape memory chemistry visual_art Ceramics and Composites visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | Journal of Materials Research and Technology, Vol 9, Iss 3, Pp 6085-6100 (2020) |
| ISSN: | 2238-7854 |
| Popis: | In this study, the hybrid nanofiller of montmorillonite (MMT) and multi-walled carbon nanotube (MWCNT) were incorporated into shape memory epoxy (SMEP) at different loadings. The fillers were dispersed in the SMEP resin by sonication. Tensile and flexural properties were analyzed at room temperature (RT) and high temperature (HT). Field emission scanning electron microscopy (FE-SEM) was used to analyze the microstructure of fractured samples. The tensile results revealed that at RT, the hybrid filler nanocomposite exhibits a ductile behavior meanwhile at HT, the nanocomposite exhibits a brittle behavior. The sample with the hybrid filler loading of 3 wt% MMT and 1.0 wt% MWCNT produced maximum performance with an increase of 32.5% in the ultimate tensile strength (UTS) and 20.9% in Young’s modulus at RT. The trends of the UTS and modulus obtained in the HT tensile test were almost similar to the RT tensile test despite yielding lower value. The RT flexural test revealed an increasing flexural strength as the filler loading increased with a maximum of 176% increase for hybrid filler of 3 wt% MMT and 1.0 wt% MWCNT. This trend was also observed for the flexural strength at HT. From FE-SEM, it was observed that the SMEP nanocomposite containing 3 wt% MMT and 1.0 wt% MWCNT was well dispersed and interact with each other, producing a synergetic reinforcement towards the performance. This study demonstrates the tensile and flexural reinforcement effect of MMT and MWCNT hybrid nanofiller. Findings from this study can be utilized to select the optimum loading for mechanical requirements in various applications. |
| Databáze: | OpenAIRE |
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