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Microstructure and Flexural Property of CaCO3 Whisker Reinforced Epoxy Composite Material

Reinforcement was performed to epoxy resin by CaCO3 whisker, and the effect of flexural property of CaCO3 whisker reinforced composite materials was studied. The microstructures of the composite materials were observed by SEM. The results showed that the flexural strength of the composites increased with increasing CaCO3 whisker content, and the flexural strength reached to the maximum value when CaCO3 whisker content was about 15wt.%, and the maximum value was about 11% higher than that of pure epoxy resin. But, the strength would drop sharply with the excessive CaCO3 whisker.