Journal of Composites / 2014 / Article / Tab 1 / Research Article
High Strain Rate Compressive Behavior of Polyurethane Resin and Polyurethane/Al2 O3 Hollow Sphere Syntactic Foams Table 1 Existing studies on polyurethane/hollow glass microballoon syntactic foams.
Reference Syntactic foam Results [17 ] Polyurethane foam filled with HGM Addition of 15% sepiolite nanofibers and 10% HGM resulted in 240% and 300% increase in the tensile and compressive strength of rigid polyurethane foam [18 ] Polyurethane foam filled with HGM 90 kg/m3 density foam showed 12% increase in compressive modulus and 10% increase in the compressive strength with addition of 1 wt.% of HGM [30 ] Polyurethane foam filled with HGM (9.5 wt.%) Isonate CPR-16 formulation: addition of HGM resulted in 45% increase in the compressive strength, with very little increase in the composite density. [31 ] Polyurethane foam filled with HGM (0–40 vol.%) Flexural modulus increases by 80% with addition of 10% HGM. [32 ] Polyurethane foam filled with silane treated HGM (0–20 wt.%) 50% increase in compressive modulus was observed with addition of 10 wt.% of HGM. [33 ] Polyurethane resin filled with HGM (50 vol.%) The polyurethane foam showed strain rate sensitivity and the collapse stress increased by 238% at a strain rate of 1185 s−1 in comparison to quasistatic compression.