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Improvement in mechanical and thermal properties of unsaturated polyester- based hybrid composites

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Abstract

Polymer matrix composites are used in automobile, structure and aerospace industries due to their light weight and high strength. The present research has an aim to reinforce locally developed silica nanoparticles and glass fibers in unsaturated polyester to produce polymer-based hybrid composites. Composites were synthesized by hand lay-up method with 1, 2, 3 and 4 wt% of silica sand nanoparticles and glass fiber. Mechanical tests like tensile, impact and micro-hardness were performed on the obtained polymer hybrid composites. The results of mechanical properties of the hybrid polymer matrix composites revealed an increasing trend. The SEM analysis was performed on the developed and fractured tensile testing samples. The SEM analysis showed the presence of silica nanoparticles in the samples and pulling action of fibers were seen under fractured tensile tests. The pulling actions of fibers from polymer matrix delayed the fractured mechanism and enhanced the mechanical properties. Silica nanoparticles filled the cavities generated during tensile test and extensive enhancement was revealed in tensile as well as impact energy. Toughness of the hybrid composite was also enhanced as a result. The thermal properties of the hybrid polymer composites were analyzed using thermogravimetric analysis. Thermal stability of the composite has been marginally increased with increasing wt% of reinforcement.

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Acknowledgements

The authors are thankful to the University of the Punjab for the financial support in conducting this research work.

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Authors and Affiliations

  1. Department of Metallurgy and Materials Engineering, College of Engineering and Emerging Technologies, University of the Punjab, Lahore, Pakistan

    Tahir Ahmad, Syed Shehzad Raza, Ehsan Aleem, M. Kamran, Umar Manzoor, Atif Makhdoom, Rafiq Ahmad & Sehrish Mukhtar

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  1. Tahir Ahmad
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  2. Syed Shehzad Raza
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  3. Ehsan Aleem
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  4. M. Kamran
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  7. Rafiq Ahmad
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  8. Sehrish Mukhtar
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Correspondence to Tahir Ahmad.

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Ahmad, T., Raza, S.S., Aleem, E. et al. Improvement in mechanical and thermal properties of unsaturated polyester- based hybrid composites. Iran Polym J 26, 305–311 (2017). https://doi.org/10.1007/s13726-017-0520-6

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  • DOI: https://doi.org/10.1007/s13726-017-0520-6

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