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A Novel Strategy for the Preparation of Bamboo Fiber Reinforced Polypropylene Composites

机译:竹纤维增强聚丙烯复合材料制备的新策略

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摘要

In this paper, a novel strategy was used to prepare the bamboo fiber (BF)/polypropylene (PP) composites which greatly improved the distribution of BR Both the raw and alkali treated BF were utilized for the fabrication of composites and silane coupling agent was used to improve the adhesion of BF and PP. The effects of BF content and me alkali treatment of BF on mechanical, thermal, morphological, dynamic mechanical properties and water absorption were studied. The Fourier transform infrared spectroscopy (FT-IR) analysis indicated that the hydrophilic nature of raw BF was significantly reduced by alkali treatment. In addition, the mechanical properties and the water absorption of the composites were found to increase with the increment of BF loading. Most importantly, the mechanical properties of the alkali treated BF showed much higher values than that of raw BF while the water absorption of alkali treated BF was much lower than that of raw BF. The results indicated the interaction of fiber-matrix was greatly improved by the alkali treatment. Moreover, from the Scanning Electron Microscopy (SEM) images, it further proved that the distribution of BF was improved by the way of papermaking to premix BF and PP fiber. The Dynamic mechanical thermal analysis (DMA) results showed that the storage modulus of the composites was increased with further increase in BF content.
机译:本文采用一种新颖的策略来制备竹纤维(BF)/聚丙烯(PP)复合材料,从而极大地改善了BR的分布。将原始和碱处理过的BF用于复合材料的制造,并使用了硅烷偶联剂改善高炉和聚丙烯的附着力。研究了高炉含量和碱处理高炉对机械,热,形貌,动态力学性能和吸水率的影响。傅立叶变换红外光谱(FT-IR)分析表明,碱处理可显着降低粗制高炉的亲水性。另外,发现复合材料的机械性能和吸水率随高炉负荷的增加而增加。最重要的是,碱处理的高炉的机械性能显示出比原始BF高的值,而碱处理的BF的吸水率远低于原始BF。结果表明,通过碱处理极大地改善了纤维-基质的相互作用。此外,从扫描电子显微镜(SEM)图像可以进一步证明,通过造纸将BF和PP纤维预混可以改善BF的分布。动态机械热分析(DMA)结果表明,随着BF含量的进一步增加,复合材料的储能模量增加。

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