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首页> 外文期刊>Fibers and Polymers >Effect of Coir Fiber Content and Compatibilizer on the Properties of Unidirectional Coir Fiber/Polypropylene Composites
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Effect of Coir Fiber Content and Compatibilizer on the Properties of Unidirectional Coir Fiber/Polypropylene Composites

机译：椰壳纤维含量和增容剂对单向椰壳纤维/聚丙烯复合材料性能的影响

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摘要

The main objective of this research was to study the effect of fiber content variation and stearic acid (SA) treatment on the fundamental properties of unidirectional coir fiber (CF) reinforced polypropylene (PP) composites. Several percentages of filler contents were used (10-40 wt %) in order to gain insights into the effect of filler content on the properties of the composites. Coir/PP composites were fabricated by compression molding, and the properties of composites were studied by physico-mechanical and thermal properties. The results from mechanical properties such as tensile strength (TS), tensile modulus (TM) and impact strength (IS) of the CF/PP composites were found to be increased with increasing fiber content, reached an optimum and thereafter decreased with further increase in fiber content. Treatment of the coir with SA as the coupling agent enhanced the mechanical properties, crystallization temperature and crystallinity of virgin PP and water desorption of the resulting composites, resulting from the improved adhesion between the CF and PP matrix. Scanning electron micrographs (SEM) of the tensile fractured samples showed improved adhesion between fiber and matrix upon treatment with SA. Interfacial shear strength (IFSS) of the composites was measured by single fiber fragmentation test (SFFT).
机译：这项研究的主要目的是研究纤维含量变化和硬脂酸（SA）处理对单向椰壳纤维（CF）增强聚丙烯（PP）复合材料基本性能的影响。为了了解填料含量对复合材料性能的影响，使用了百分之几的填料含量（10-40 wt％）。通过压缩成型制备椰壳纤维/聚丙烯复合材料，并通过物理力学和热学性质研究复合材料的性能。发现CF / PP复合材料的机械性能（如拉伸强度（TS），拉伸模量（TM）和冲击强度（IS））的结果随纤维含量的增加而增加，达到最佳值，然后随着纤维含量的进一步增加而降低。纤维含量。用SA作为偶联剂处理椰壳纤维，可提高CF和PP基体之间的附着力，从而提高原始PP的机械性能，结晶温度和结晶度，并提高所得复合材料的水脱附率。拉伸断裂样品的扫描电子显微镜照片（SEM）显示，用SA处理后，纤维与基质之间的粘合性得到了改善。复合材料的界面剪切强度（IFSS）通过单纤维断裂试验（SFFT）进行测量。

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