Low-Cost Coir Fiber Composite with Integrated Strength and Toughness
Low-Cost Coir Fiber Composite with Integrated Strength and Toughness
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DOI：
10.1021/acssuschemeng.6b00830
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发表时间：
2016-08
影响因子：
8.4
通讯作者：
Fengyun Guo;Nü Wang;Qunfeng Cheng;Lanlan Hou;Jingchong Liu;Y. Yu;Yong Zhao
中科院分区：
文献类型：
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作者：
Fengyun Guo;Nü Wang;Qunfeng Cheng;Lanlan Hou;Jingchong Liu;Y. Yu;Yong Zhao
随着环境问题的日益严重和石油资源的枯竭，对生物可再生、可持续、环境友好的复合材料的需求迫切。在这里，我们报道了一种绿色椰壳纤维复合材料，其特定机械性能优于其他报道的天然纤维/聚合物复合材料。处理后，复合纤维的强度和韧性均得到显着提高（比未处理的对应物提高91.13％和175.7％），其中暴露的纤维素纳米原纤维和NaOH注入形成的堆叠层以及含羟基的亲水性聚（乙烯醇）涂层在物理化学相互作用中发挥着至关重要的作用，从而增强机械性能。通过观察微纳米结构演化过程，揭示了从纳米尺度到宏观尺度的强化机制。我们相信，这一策略可以为坚固且可持续的复合纤维的设计提供新的见解，以供进一步的实际应用，例如……
With the growing environmental problems and depletion of petroleum resources, there is an urgent demand for the biorenewable, sustainable, and environmentally friendly composite materials. Here, we report a green coir fiber composite with specific mechanical properties superior to that of other reported natural fiber/polymer composites. After treatment, both strength and toughness of the composite fiber were substantially improved (91.13% and 175.7% higher than that of untreated counterpart), where exposed cellulose nanofibrils and stacking layer formed by NaOH infusion and the hydroxyl-containing hydrophilic poly(vinyl alcohol) coating play a crucial role in physicochemical interaction and thereby mechanical enhancement. By observing the process of the micro/nanostructure evolution, the strengthened mechanism from nanoscale to macroscale was demonstrated. We believe that this strategy could open new insights into the design of strong and sustainable composite fiber for further practical applications, suc...