Mechanical Characterization of Nanosilica-enhanced Glass Fiber-reinforced Polymer Composites
J. Environ. Nanotechnol., Volume 14, No 2 (June 2025) pp. 294-299
Abstract
Glass Fiber-reinforced Polymers (GFRP) are widely recognized for their superior mechanical performance and resistance to environmental degradation. Incorporating nano-scale fillers into these composites offers a promising way to further enhance their structural and functional properties. In this study, nanosilica particles were used as reinforcement in a polymer matrix composite system containing E-glass fibers to evaluate the improvement in mechanical properties. The composites were fabricated using the hand lay-up technique with Nano silica content varied from 0.5 wt.% to 3.5 wt.% in 0.5% increments. Mechanical characterization included tensile strength, flexural strength, and surface hardness testing. Results indicated a consistent improvement in all evaluated properties with increasing nanosilica content, attributed to better stress transfer and enhanced interfacial bonding between the fibers, matrix, and nano-fillers. Among all the samples, the composite containing 2.5% nanosilica exhibited the highest performance, demonstrating optimal dispersion and reinforcement efficiency. The observed enhancement confirms that even small additions of nanosilica can significantly influence the mechanical response of GFRP composites. These findings suggest that nanosilica-reinforced GFRP composites hold strong potential for high-performance applications in aerospace structures, defense components, marine systems, and advanced sporting equipment where weight reduction and mechanical reliability are critical. The successful integration of nanosilica with traditional glass fiber systems provides a viable pathway for the development of next-generation lightweight structural materials.
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Reference
Asrofi, M. M., Investigation on impact properties of basalt and glass fiber reinforced polyester composites filled with nano silica, Malay. Nano Int. J., 3(2), 1–16(2023).
Chillu, N., Jeshurun, A., Jayaganthan, R., Velmurugan, R. and Sarathi, R., Investigation on dielectric and mechanical properties of epoxy reinforced with glass fiber and nano-silica composites, Mater. Res. Exp., 6(11), 115082(2019).
https://doi.org/10.1088/2053-1591/ab4beb
Chowdary, M. S., Raghavendra, G., Kumar, M. S. R. N., Ojha, S. and Boggarapu, V., Influence of Nano-Silica on Enhancing the Mechanical Properties of Sisal/Kevlar Fiber Reinforced Polyester Hybrid Composites, Silicon, 14(2), 539–546(2020).
https://doi.org/10.1007/s12633-020-00846-y
Fathy, A., Shaker, A., Hamid, M. A. and Megahed, A., The effects of nano-silica/nano-alumina on fatigue behavior of glass fiber-reinforced epoxy composites. J. Compos. Mater., 51(12), 1667–1679(2016).
https://doi.org/10.1177/0021998316661870
Feli, S., Jalilian, M. M., Experimental and optimization of mechanical properties of epoxy/nanosilica and hybrid epoxy/fiberglass/nanosilica composites, J. Compos. Mater., 50(28), 3891–3903(2016).
https://doi.org/10.1177/0021998315627198
Jeyakumar, R., Sampath, P. S., Ramamoorthi, R. and Ramakrishnan, T., Structural, morphological and mechanical behaviour of glass fibre reinforced epoxy nanoclay composites, Int. Adv. Manuf. Technol., 93(1–4), 527–535(2017).
https://doi.org/10.1007/s00170-017-0565-x
Khanna, S. K., Winter, R. M., Ranganathan, P., Yedla, S. B., Kalukanimuttam, M. and Paruchuri, K., Sample preparation techniques for nano-mechanical characterization of glass fiber reinforced polyester matrix composites, Compos. Part A Appl. Sci. Manuf., 34(1), 53–65(2003).
https://doi.org/10.1016/s1359-835x(02)00231-2
Megahed, M., Agwa, M. and Megahed, A., Effect of ultrasonic parameters on the mechanical properties of glass fiber reinforced polyester filled with nano-clay, J. Ind. Tex., 51(2_suppl), 2944S-2959S (2020).
https://doi.org/10.1177/1528083720918348
Megahed, M., Megahed, A. and Agwa, M., The influence of incorporation of silica and carbon nanoparticles on the mechanical properties of hybrid glass fiber reinforced epoxy, J. Ind. Tex., 49(2), 181–199(2019).
https://doi.org/10.1177/1528083718775978
Parizi, M. J. G., Shahverdi, H., Roa, J. J., Pipelzadeh, E., Martinez, M., Cabot, A. and Guardia, P., Improving Mechanical Properties of Glass Fiber Reinforced Polymers through Silica-Based Surface Nano engineering, ACS Appl. Polym. Mater., 2(7), 2667–2675(2020).
https://doi.org/10.1021/acsapm.0c00295
Rezvani, M. B., Atai, M., Hamze, F. and Hajrezai, R. The effect of silica nanoparticles on the mechanical properties of fiber-reinforced composite resins, J. Dent. Res. Dent. Clin. Dent. Prospects, 10(2), 112–117(2016).
https://doi.org/10.15171/joddd.2016.018
Somaiah, C. M., Raghavendra, G., Kumar, M. S. R. N., Ojha, S., Mohan, K. P. and Panchal, M., A comparison of the effect of nano clay addition on microstructures and mechanical properties of epoxy and polyester reinforced glass/sisal hybrid polymer composites, Polym. Compos., 43(6), 3871–3879(2022).
https://doi.org/10.1002/pc.26662
Vijayan, M., Selladurai, V. and Kumar, V. V. Investigating the Influence of Nano-Silica on Low-Velocity Impact Behavior of Aluminium-Glass Fiber Sandwich Laminate, Silicon, 15(11), 4845–4859 (2023).
https://doi.org/10.1007/s12633-023-02391-w
VijayKiran, B., Rao, K. M. and LingaRaju, D., An Investigation on Mechanical Properties of E-Glass Fiber reinforced Polymer Nanocomposites, Mater. Today: Proce., 18, 5454–5463(2019).
