Assessments of Secondary Reinforcement of Epoxy Matrix-Glass Fibre Composite Laminates through Nanosilica (SiO2)
| Autor: | Ramesh Sengottuvelu, Prince Jeya Lal Lazar, Elango Natarajan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
epoxy matrix Three point flexural test Composite number Glass fiber 02 engineering and technology 010402 general chemistry lcsh:Technology 01 natural sciences Article Flexural strength Ultimate tensile strength General Materials Science Composite material lcsh:Microscopy lcsh:QC120-168.85 lcsh:QH201-278.5 lcsh:T E-glass fibre Dynamic mechanical analysis Epoxy nanosilica Composite laminates 021001 nanoscience & nanotechnology 0104 chemical sciences X-ray diffraction lcsh:TA1-2040 visual_art SEM visual_art.visual_art_medium lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology lcsh:TK1-9971 C-Scan |
| Zdroj: | Materials Volume 11 Issue 11 Materials, Vol 11, Iss 11, p 2186 (2018) |
| ISSN: | 1996-1944 |
| Popis: | The principal objective of this research work was to investigate the results of impregnating epoxy matrix-glass fibre composite laminates with nanosilica as secondary reinforcement. 0.5, 0.75, 1 and 3 wt% nanosilica was used and thereafter properties of composites were assessed through tensile, three point bending, quasi static indentation tests and dynamic mechanical analysis. Scanning electron microscope examinations were done on fracture surfaces and failure modes were analyzed. The internal failures of the composite due to quasi-static indentation were evaluated through C-Scan. Among samples of different weight fractions, 0.75 wt% nanosilica reinforced composite laminates exhibited substantial increase of 42% in tensile strength and 39.46% in flexural strength. The reduction in glass transition temperature (Tg), increase in storage modulus (E&prime ), loss modulus (E&Prime ) and damping factor (tan &delta ) were also observed. Quasi-static indentation assessments revealed that energy absorption property was enhanced significantly by 53.97%. Hence nanosilica up to 0.75 wt% can be used as a potential candidate for secondary reinforcement in epoxy composite laminates. |
| Databáze: | OpenAIRE |
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