Comparison between the Using of Macro-, Micro- and Nano-Additives on the Mechanical Properties of Epoxy Composites: A Review of the Recent Studies

Abstract

Composites are reinforced with a wide variety of materials, and the mechanical properties of those composites might vary depending on the size of the fillers used in their construction. This investigation reveals how the incorporation of reinforcements into epoxy composites in the forms of macro-, micro-, and nano-particles has an impact on the mechanical characteristics of the composites. They are usually containing various weight fractions from 1-50% with different particle sizes such as macro (1-10 mm), micro (1-200 μm) and nano (50-200 nm). The ultrasonic mixing procedure was used to evenly distribute the particles throughout the resin system. Microstructure analysis using scanning electron microscopy is routinely used to identify relevant fracture mechanisms and associated behaviours in fracture fragments. Mechanical properties under measurement are usually: tensile strength, compression strength, flexural strength, impact energy and harness.