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Mechanical and thermal properties improvement of nano calcium carbonate-filled epoxy/glass fiber composite laminates

机译：纳米碳酸钙填充环氧树脂/玻璃纤维复合层压板的机械和热性能改进

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摘要

In this work, the influence of precipitated nano calcium carbonate (PNCC) on the mechanical and thermal properties of epoxy/glass fiber (GF) laminates was studied. The mechanical properties of the epoxy/GF/PNCC composites were characterized by flexural and impact tests. The fracture toughness of the epoxy hybrid composites was evaluated by the principle of linear elastic fracture mechanics via single-edge notched bending tests. The thermal properties of the epoxy hybrid composites were studied using dynamic mechanical analyzer (DMA) and thermogravimetric analyzer (TGA). The flexural properties, impact strength, and fracture toughness of the epoxy/GF laminates were increased profoundly in the presence of PNCC. Additionally, from the DMA and TGA results, it was found that the storage modulus and thermal decomposition temperature of the epoxy/GF increased remarkably with the addition of PNCC.
机译：在这项工作中，研究了沉淀的纳米碳酸钙（PNCC）对环氧/玻璃纤维（GF）层压板的机械和热性能的影响。通过弯曲和冲击试验表征了环氧/ GF / PNCC复合材料的机械性能。通过线性弹性断裂力学原理，通过单边切口弯曲试验，评估了环氧杂化复合材料的断裂韧性。使用动态机械分析仪（DMA）和热重分析仪（TGA）研究了环氧杂化复合材料的热性能。在PNCC的存在下，环氧/ GF层压板的弯曲性能，冲击强度和断裂韧性大大提高。另外，从DMA和TGA结果，发现随着PNCC的加入，环氧/ GF的储能模量和热分解温度显着增加。

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