Sustainable Hybrid Epoxy Composites Reinforced with Hemp Fiber Coir and Nano Egg Shell Particle for Biodegradability EvaluationVelliyangiri Baskaran, Jeseentha Johnson, Kavin Veerapathiran and Vikash ChithanEPJ Web Conf., 370 (2026) 01008DOI: https://doi.org/10.1051/epjconf/202637001008