Abstract
The epoxy resin was modified with silica nanoparticles and reinforced by carbon fibre by means of resin transfer molding (RTM). The interlaminar fracture toughness of the laminated composites was tested and the fracture surface was observed by the microscope. The result shows that the critical energy release rate (GIC) increases by 45% and the fracture surface is tougher than the unmodified specimen. The interlaminar fracture toughness has been improved significantly.
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