“…Compressive strength, at different filler weight contents and strain rates of PP/S, [112] PP/ZnO, [57] E/S, [113] E/ GO, [114] E/CNT, [115] PE/GNP, [116] PE/C, [117] E/PS, [118] and PE/SD. [119] C, clay; E, epoxy; GO, graphene oxide; GNP, graphene nanoplatelets; PE, polyethylene; PP, polypropylene; PS, polystyrene microspheres; S, silica; SD, sawdust; ZnO, zinc oxide F I G U R E 1 4 Compressive modulus (measured at a strain rate of 10 3 s À1 ), at different filler weight content of PP/S, [112] PP/ ZnO, [57] E/GO, [114] PE/C, [117] E/PS, [118] and PE/SD, [119] and E/GNP. [120] C, clay; E, epoxy; GO, graphene oxide; GNP, graphene nanoplatelets; PE, polyethylene; PP, polypropylene; PS, polystyrene microspheres; S, silica; SD, sawdust; ZnO, zinc oxide the strength of the particle-matrix interfacial bonding strength is more important than the quality of the particle dispersion, in terms of an enhancement in mechanical properties.…”