Corrosion Control Through Diffusion Control by Post Thermal Curing Techniques for Fiber Reinforced Plastic Composites
Through this study, the moisture absorption behavior of composite materials with different post curing temperatures was determined to observe the corrosion control rate in materials. Due to the capillary effect, fibers absorb moisture from the environment and this may cause swelling in composites. This phenomenon develops additional strain in the laminate and accelerates strength degradation with the combined effect of corrosion. For the analysis, composite laminates of basalt/epoxy, basalt/polyester, glass/epoxy, and glass/polyester were fabricated using a hand layup process and cured at room temperature. Some of these laminates were further cured in a convection oven at different temperatures and some using a microwave oven. Samples of basalt/epoxy, basalt/polyester, glass/epoxy, and glass/polyester fiber reinforced laminates’ dry weights had been noticed and after that, they were immersed in NaCl solution (30% NaCl in one liter of distilled water) for an absorption test at room temperature. The initial weights of post-cured materials were weighed using a physical balance and tabulated. Similarly, the weights of the post-cured materials under moisture absorption were weighed at an interval of 7 days for a month and compared their properties.
KeywordsDiffusion and corrosion control Fiber reinforced polymer composite Microwave post-curing
- 7.Bian, L., Xiao, J., Zeng, J., Xing, S.: Effects of seawater immersion on water absorption and mechanical properties of GFRP composites, 1–12 (2012)Google Scholar
- 8.Zamri, M.H., Md Akil, H., Bakar, A.A., Ishak, Z.A.M., Cheng, L.W.: Effect of water absorption on pultruded jute/glass fiber-reinforced unsaturated polyester hybrid composites, 51–61 (2011)Google Scholar
- 9.Liu, H.W., Xie, K.F., Hu, W.W., Sun, H., Yang, S.W., Yang, T.Y.: Water absorption of wood composite modified by basalt glass powder. In: Advanced Materials Research, vol. 821–822, pp. 1168–1170 (2013). https://doi.org/10.4028/www.scientific.net/AMR.821-822.1168CrossRefGoogle Scholar
- 10.Water Absorption by Composite Materials and Related Effects. Wood-Plastic Composites, pp. 383–411 (n.d.). https://doi.org/10.1002/9780470165935.ch12