Toughness behavior and thermal stability of CaCO3/Epoxy composites derived from various CaCO3 morphology
발표자
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초록
내용
In this study, epoxy matrix modification has been investigated with different content of cube-like and rod-like CaCO3 nanoparticles. The effect of CaCO3 with different morphology on the mechanical properties and thermal stability of CaCO3/epoxy composites were studied. The results showed that the mechanical properties such as flexural strength, flexural modulus and fracture toughness of epoxy composites with CaCO3 were enhanced by the addition of cube-like and rod-like CaCO3 nanoparticle. Moreover, the mechanical properties of composites increased with the increase of the addition amount of CaCO3, and then decreased when the filler content up to 2%. The rod-like CaCO3/epoxy composites (EP-rod) shows better properties than that of cube-like CaCO3/epoxy composites (EP-cube) under the same amount of CaCO3 filler. In particular the epoxy composite containing 1.5 wt.% rod-like CaCO3 nanoparticles showed a better mechanical behavior and thermal stability than that of others.