Polyurethane/clay nanocomposites reinforced with carbon and glass fibres: study of mechanical and thermal properties,and the effect of electron beam irradiation |
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| Authors: | Mohammadreza Kosari Seyed Mohammad Ali Mousavian Seyed Mohammad Razavi Manuchehr Izadipanah |
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| Affiliation: | 1. Department of Energy Engineering, Sharif University of Technology, Tehran, Iran;2. School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran;3. Materials and Nuclear Fuel Research School, Nuclear Science and Technology Research Institute, Tehran, Iran |
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| Abstract: | Polyurethane (PU) nanocomposites with 0, 1, 3, 5, and 7?wt-% nanoclay contents were prepared. X-ray diffraction patterns, transmission electron microscopy images, tensile test, and thermogravimetric analysis were utilised to reveal the morphological, mechanical, and thermal-resistant properties of the prepared nanocomposites. The exfoliated structure was obtained for nanoclay contents up to 3?wt-%. Incorporation of nanoclay to the PU matrix prompted the thermal stability of the polymer. A nanocomposite filled with 3?wt-% nanoclay showed the best tensile strength in the prepared nanocomposites. Subsequently, the nanocomposite with the 3?wt-% nanoclay was reinforced with carbon and glass fibres. Reinforcement of the PU/nanoclay matrix with carbon and glass fibres significantly ameliorated the tensile properties. Finally, the effects of the electron beam irradiation on the nanocomposites and fibre-reinforced composites were studied. Irradiation with the doses up to 500?kGy enhanced the mechanical and thermal properties. However, further irradiation deteriorated the mechanical and thermal-resistant properties. |
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| Keywords: | Polyurethane nanoclay nanocomposite carbon fibre glass fibre electron beam irradiation |
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