Effect of expanded glass particle size on compressive properties of vinyl ester syntactic foams

The most common fillers for syntactic foam development are glass microballoons or fly ash cenospheres. However, the need improved properties and reduced cost requires exploring other possibilities. In this work, foams of vinyl ester resin reinforced with expanded particles (EG) were fabricated compressive composites studied. EGS was smaller size 0.04–0.125 mm in 15, 30, 45 vol.% EGL had larger 0.25–0.5 15 30 vol.%. Compression testing reveals that enhance modulus by up to 48% a 3.4% reduction yield strength compared neat resin. Strain rate sensitivity observed both values all composites. Composite filler showed better than at 0.01 s?1 strain rate, which is an overall improvement material. When literature data, made present work have highest same density.