Hibiscus Cannabinus Fiber/PP based Nano-Biocomposites Reinforced with Graphene Nanoplatelets

ABSTRACT

The essence of the present research is based on reinforcement mechanism of hibiscus cannabinus fiber (KF) and graphene nanoplatelets (GNP) on mechanical and thermal properties of hybrid hibiscus cannabinus fiber/polypropylene (PKMG 1–5 phr) nano-biocomposites. TGA results revealed inclusion of KF and GNP enhanced charring and thermal stability of the bio-nanocomposites. DSC analysis revealed improved melting and crystallization temperatures of the materials. Flexural modulus significantly increased on inclusion of 20 wt.% kenaf fiber and 5 phr GNP. XRD studies confirmed KF and GNP induced nucleation of β-crystals of PP which improved toughness and impact properties of the nano-biocomposites especially at 3 phr.

摘要

本文重点研究槿麻纤维（KF）和石墨烯纳米片（GNP）对混合槿麻纤维/聚丙烯（PKMG 1-5 phr）纳米生物复合材料的机械和热性能的增强机理。TGA结果显示，加入KF和GNP可提高生物纳米复合材料的炭化性和热稳定性。DSC分析显示材料的熔融和结晶温度也得到了改善。当槿麻纤维和5phr GNP含量的重量比为20%时，弯曲模量显著增加。XRD研究证实，KF和GNP能够促进PP的β-晶体的成核，这改善了纳米生物复合材料的韧性和抗冲击性能，特别是在3phr情况下。

KEYWORDS:

• graphene nanoplatelets
• hibiscus cannabinus fiber
• mechanical
• nano-biocomposites
• nucleation
• thermal

关键词:

• 石墨烯纳米片
• 槿麻纤维
• 机械
• 纳米生物复合材料
• 成核
• 热

Acknowledgments

The authors wish to acknowledge the management of Universiti Teknologi Malaysia for providing enabling infrastructures for the success of this research.