The investigation of reinforcement properties of nano-CaCO3 synthesized from Achatina fulica snail shell through mechanochemical methods on epoxy nanocomposites

IF 4.2 3区材料科学 Q2 MATERIALS SCIENCE, COMPOSITES

Nanocomposites Pub Date : 2021-01-02 DOI:10.1080/20550324.2021.1936972

O. Gbadeyan, S. Adali, G. Bright, B. Sithole

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引用次数: 12

Abstract

Abstract The current study investigates the reinforcement properties of novel nano-calcium carbonate (nano-CaCO3) synthesized from Achatina fulica snail shell. The shell was wet-milled to nanoparticle sizes using mechanochemical procedures. Epoxy nanocomposites prepared with nanofiller content ranges of 1–7 wt.% were fabricated using a conventional resin casting method. Thermal stability and degradation with mechanical properties such as tensile strength, impact strength, and the hardness properties of prepared nanocomposites were determined. It was observed that the reinforcement by the synthesized nano-CaCO3 improved the thermal stability and mechanical properties of neat epoxy irrespective of the filler content. Significantly, the inclusion of 1 w.% Achatina fulica snail shell nanoparticles increased the neat epoxy tensile strength by 75%, stiffness by over 25%, impact strength by 25%, and hardness 35%. These improved properties indicate that nano-CaCO3 synthesized from A. fulica snail shell possesses suitable reinforcement properties that can be used for nanocomposite fabrication.

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用机械化学方法研究了以黄斑螺壳为原料合成的纳米碳酸钙在环氧纳米复合材料上的增强性能

摘要本研究主要研究了以黄斑螺壳为原料合成的新型纳米碳酸钙(纳米caco3)的增强性能。使用机械化学程序将外壳湿磨成纳米颗粒大小。纳米填料含量范围为1 ~ 7wt的环氧纳米复合材料。%是用传统的树脂铸造法制造的。测试了制备的纳米复合材料的热稳定性和降解性能，以及拉伸强度、冲击强度和硬度等力学性能。结果表明，合成的纳米碳酸钙增强剂可以提高纯环氧树脂的热稳定性和力学性能，而与填料含量无关。值得注意的是，加入1%的黄斑螺壳纳米颗粒可使纯环氧树脂的拉伸强度提高75%，刚度提高25%以上，冲击强度提高25%，硬度提高35%。这些性能的改善表明，由黄斑螺壳合成的纳米caco3具有良好的增强性能，可用于纳米复合材料的制备。

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来源期刊

Nanocomposites Multiple-

CiteScore

7.40

自引率

15.20%

发文量

审稿时长

16 weeks