Effect of Woven E-glass and Bamboo Stacking Sequences on the Properties of Laminated Composites Using Polyester Matrix Filled with Eggshell Microparticles

tudy is to determine how different stacking sequences of woven E-glass fibers (G) and woven bamboo (treated bamboo (B) and untreated bamboo (Ub)) affect the properties (bending, impact, and water absorption) of B, Ub, and G-strengthened polyester filled with eggshell microparticles (EMPs). The bamboo slats were immersed in water for 120 hours and alkalized with 6% NaOH for 36 hours. The composites were fabricated by hand lay-up using various stacking sequences of GUbG, GBG, GBBG, and GBGBG. The composite with a stacking sequence of GBGBG had the best flexural strength and impact toughness, at 177.19 MPa and 88.13 kJ/m^2, respectively. It also had the lowest amount of water absorption, at 0.64%. This composite is potentially being developed for biomedical materials.