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Mechanical Strength Thermal Conductivity and Electrical Breakdown of Kenaf Core Fiber/Lignin/Polypropylene Biocomposite

机译：康复核心纤维/木质素/聚丙烯生物复合材料的机械强度导热性和电击

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摘要

Mechanical strength, thermal conductivity and electrical breakdown of polypropylene/lignin/kenaf core fiber (PP/L/KCF) composite were studied. PP/L, PP/KCF and PP/L/KCF composites with different fiber and lignin loading was prepared using a compounding process. Pure PP was served as control. The results revealed that tensile and flexural properties of the PP/L/KCF was retained after addition of lignin and kenaf core fibers. Thermal stability of the PP composites improved compared to pure PP polymer. As for thermal conductivity, no significant difference was observed between PP composites and pure PP. However, PP/L/KCF composite has higher thermal diffusivity. All the PP composites produced are good insulating materials that are suitable for building. All PP composites passed withstand voltage test in air and oil state as stipulated in IEC 60641-3 except PP/L in oil state. SEM micrograph showed that better interaction and adhesion between polymer matrix, lignin and kenaf core fibers was observed and reflected on the better tensile strength recorded in PP/L/KCF composite. This study has successfully filled the gap of knowledge on using lignin and kenaf fibers as PP insulator composite materials. Therefore, it can be concluded that PP/Lignin/KCF has high potential as an insulating material.
机译：研究了聚丙烯/木质素/ kENAF核心纤维（PP / L / KCF）复合材料的机械强度，导热和电击穿。使用配合方法制备具有不同纤维和木质素荷载的PP / L，PP / KCF和PP / L / KCF复合材料。纯PP作为对照。结果表明，在加入木质素和keNaf核心纤维后，保留了PP / L / KCF的拉伸和弯曲性能。与纯PP聚合物相比，PP复合材料的热稳定性改善。对于导热性，PP复合材料和纯PP之间没有观察到显着差异。然而，PP / L / KCF复合材料具有更高的热扩散率。所产生的所有PP复合材料都是适合建筑物的良好绝缘材料。除了PP / L的IEC 60641-3中，所有PP复合材料在空气和油状态下通过除PP / L中的IEC 60641-3中的空气和油状态。 SEM显微照片显示，观察到聚合物基质，木质素和keNaf核心纤维之间的更好的相互作用和粘附，并反映在PP / L / KCF复合材料中记录的更好的拉伸强度。本研究成功地填补了使用木质素和keNaf纤维作为PP绝缘子复合材料的知识的差距。因此，可以得出结论，PP / Lignin / KCF具有高潜力作为绝缘材料。

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