Dynamic-Mechanical Behavior of Malva Fiber Reinforced Polyester Matrix Composites
Dynamic-mechanical (DMA) tests have not yet been conducted in malva aligned fiber reinforcing polymeric composites. In this work, the temperature dependence of the DMA parameters in polyester matrix composites reinforced with up to 30% in volume of continuous and aligned malva fibers was investigate...
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| Veröffentlicht in: | Materials science forum 2014-01, Vol.775-776, p.278-283 |
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| creator | Oliveira, Michel Picanço Margem, Jean Igor Muylaert Margem, Frederico Monteiro, Sergio Neves Oliveira, Caroline Gonçalves Martins, Lucas Barbosa De Souza |
| description | Dynamic-mechanical (DMA) tests have not yet been conducted in malva aligned fiber reinforcing polymeric composites. In this work, the temperature dependence of the DMA parameters in polyester matrix composites reinforced with up to 30% in volume of continuous and aligned malva fibers was investigated. These parameters were the storage and the loss modulus as well as the tangent delta. The investigation was conducted in the temperature interval from-20 to 180°C using a Perking-Elmer DMA equipment operating in flexural mode. The results showed that the incorporation of malva fibers tends to increase the viscoelastic stiffness of the polyester matrix. Sensible modifications in the glass transition temperature and the damping capacity of the structure were found with the amount of fiber in the composite. The molecular mobility of the polyester matrix is affected by its interaction with the malva fibers. |
| doi_str_mv | 10.4028/www.scientific.net/MSF.775-776.278 |
| format | Article |
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In this work, the temperature dependence of the DMA parameters in polyester matrix composites reinforced with up to 30% in volume of continuous and aligned malva fibers was investigated. These parameters were the storage and the loss modulus as well as the tangent delta. The investigation was conducted in the temperature interval from-20 to 180°C using a Perking-Elmer DMA equipment operating in flexural mode. The results showed that the incorporation of malva fibers tends to increase the viscoelastic stiffness of the polyester matrix. Sensible modifications in the glass transition temperature and the damping capacity of the structure were found with the amount of fiber in the composite. 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| subjects | Alignment Deltas Fibers Loss modulus Molecular structure Polyester resins Tangents Temperature dependence |
| title | Dynamic-Mechanical Behavior of Malva Fiber Reinforced Polyester Matrix Composites |
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