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首页> 外文期刊>Journal of Polymers and the Environment >Bioalumina Nano Powder Extraction and its Applications for Sisal, Coir and Banana Hybrid Fiber Composites: Mechanical and Thermal Properties
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Bioalumina Nano Powder Extraction and its Applications for Sisal, Coir and Banana Hybrid Fiber Composites: Mechanical and Thermal Properties

机译：生物氧化铝纳米粉末的提取及其在剑麻，椰壳和香蕉杂化纤维复合材料中的应用：机械和热性能

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摘要

In the present environmental conditions bio usages has a vital importance in the society due to global warming and other environmental threats. In this work, alumina nano powder synthesized from Neem' leaf' is used in sisal, coir and banana fiber composites for the betterment of mechanical and thermal applications. Thermo gravimetric analysis (TGA) contemplated biosynthesized alumina nano powder (BSANP-C) has better thermal stability than other nano powders. The mechanical results verified the enhancement of tensile, flexural and impact strength for hybrid banana coir (HBC), hybrid sisal coir (HSC) and hybrid sisal banana (HSB) composites up to 3% BSANP-C addition. Hybrid combination at 5% nano substitution tends to decrease the mechanical properties of hybrid composites due to agglomeration of BSANP-C making uneven mixing of filler in the matrix. The addition of BSANP-C wt% up to 3 in HBC, HSC and HSB ascertain residual % improvement from 18.72 to 23.41%, 21.90 to 25.75% and 22.69 to 26.33%. BSANP-C addition at 5% decreased the degradation temperature, char residual % and endothermic peak due to agglomeration. SEM test was taken for morphological study of fractured surface of the hybrid composites.
机译：在当前的环境条件下，由于全球变暖和其他环境威胁，生物用途在社会中具有至关重要的意义。在这项工作中，由Neem'leaf'合成的氧化铝纳米粉末被用于剑麻，椰壳纤维和香蕉纤维复合材料，以改善机械和热学应用。热重分析（TGA）考虑的生物合成氧化铝纳米粉末（BSANP-C）具有比其他纳米粉末更好的热稳定性。力学结果证实，添加最多3％BSANP-C的混合香蕉椰壳（HBC），混合剑麻椰壳（HSC）和混合剑麻香蕉（HSB）复合材料的拉伸强度，弯曲强度和冲击强度都有所提高。由于BSANP-C的团聚，使得填料在基体中的混合不均匀，在5％纳米取代度下的杂化组合往往会降低杂化复合材料的机械性能。在HBC，HSC和HSB中添加多达3％的BSANP-C wt％可以确定残留百分比从18.72％降低到23.41％，21.90％达到25.75％和22.69％到26.33％。 5％的BSANP-C加入降低了团聚引起的降解温度，残炭％和吸热峰。进行SEM测试以研究杂化复合材料的断裂表面的形态。

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