Experimental evaluation demonstrates enhanced mechanical resistance of nano-beryllia-modified carbon epoxy composites under chemical attack, suggesting improved durability in harsh environments.
Hybrid polymer composites are an essential part of modern production. Polymer composite structures may encounter diverse corrosive environments during their operational lifespan, resulting in structural degradation and a decline in their inherent properties. This study examines the impact of using various volume fractions (1%, 2%, and 3%) of beryllium oxide (BeO), which is also known as beryllia, nanoparticles on the mechanical properties of carbon fabric-reinforced epoxy composites in both acidic and alkaline conditions at different exposure times. The investigation focuses on the toughness, tensile features, and hardness values of the prepared hybrid composite before and after immersion in hydrogen chloride (HCl) and caustic soda (NaOH) solutions. Irrespective of the solution type, exposure over time reduces the hardness, tensile strength, and impact strength. Notably, the alkaline solution induces a more pronounced decrease in these features than the hydrogen chloride (HCl) solution. Furthermore, BeO nanoparticles result in a noteworthy enhancement in the mechanical performance of these hybrid composites against these solutions.
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Kamal et al. (2026) studied this question.
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