Sustainable and Multifunctional Composites of Graphene-Based Natural Jute Fibers
Sustainable and Multifunctional Composites of Graphene-Based Natural Jute Fibers
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DOI：
10.1002/adsu.202000228
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发表时间：
2021-01-12
影响因子：
7.1
通讯作者：
Novoselov, Kostya S.
中科院分区：
文献类型：
--
作者：
Karim, Nazmul;Sarker, Forkan;Novoselov, Kostya S.
智能和可持续的天然纤维基复合材料由于其生物降解性，可回收性和环境效益超过合成纤维复合材料而引起了极大的兴趣。此外，塑料和合成纤维对环境的影响是广泛和巨大的，因为它们可以在环境中停留数百年，并对全球碳排放做出重大贡献。黄麻等天然纤维有可能取代合成纤维，以制造环境可持续、可生物降解和轻质的复合材料，这些复合材料具有更好的性能、良好的隔热和隔音性能以及更小的碳足迹。然而，天然黄麻纤维基复合材料不仅具有较差的机械性能，而且具有固有的电绝缘性，这限制了其作为多功能复合材料的应用。本文报道了石墨烯基天然黄麻纤维的多功能和环境可持续智能复合材料，其具有优异的拉伸和界面性能。还原氧化石墨烯基天然黄麻纤维经物理和化学处理后，复合材料的杨氏模量提高了约450%，拉伸强度提高了约183%。这种高性能复合材料也可以用作多功能智能复合材料，如有效的电磁干扰屏蔽性能所证明的。这可能会导致下一代智能，坚固和可持续的天然纤维复合材料的制造，用于高性能工程应用，而不会带来环境问题。
Smart and sustainable natural fiber-based composites are of great interest due to their biodegradability, recyclability, and environmental benefits over synthetic fiber composites. In addition, the environmental impact of plastics and synthetic fibers are widespread and substantial, as they can stay in the environment for hundreds of years and contribute significantly to global carbon emissions. Natural fibers such as jute can potentially replace synthetic fibers to manufacture environmentally sustainable, biodegradable, and lightweight composites with improved properties, good thermal and acoustic insulation, and a smaller carbon footprint. However, natural jute fiber-based composites suffer not only from poor mechanical properties but also being inherently electrically insulating, which limits their applications as multifunctional composites. Here multi-functional and environmentally sustainable smart composites of graphene-based natural jute fibers with excellent tensile and interfacial properties are reported. The reduced graphene oxide-based natural jute fiber enhance the Young's modulus of the composites by approximate to 450%, and tensile strength by approximate to 183% after physical and chemical treatment. Such high-performance composites can also be used as multifunctional smart composites, as demonstrated by effective electro-magnetic interference shielding performance. This may lead to manufacturing of next generation smart, strong, and sustainable natural fiber composites for high performance engineering applications without conferring environmental problems.