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首页> 外文期刊>Composite Structures >Effect of different compatibilizing agents on the mechanical properties of lignocellulosic material filled polyethylene bio-composites
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Effect of different compatibilizing agents on the mechanical properties of lignocellulosic material filled polyethylene bio-composites

机译：不同相容剂对木质纤维素材料填充聚乙烯生物复合材料力学性能的影响

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摘要

The tensile and Izod impact strength properties of lignocellulosic filler reinforced polyethylene bio-composites, made using low- and high-density polyethylene as the matrix polymer, rice-husk flour and wood flour as the reinforcing filler and different compatibilizing agents, were examined by assessing their mechanical properties and the morphological characteristics of their fracture surfaces. Test samples made with two different compatibilizing agents were injection molded, in order to determine their mechanical and morphological properties. The tensile strengths of the bio-composites fabricated using maleated polyethylene as the compatibilizing agent were superior to those of the bio-composites fabricated using maleated polypropylene, due to the improved wetting of the former compatibilizing agent in the matrix polymer. Based on the results of the Izod impact strength tests, the bio-composites fabricated using maleated polyethylene as the compatibilizing agent were also toughened. The SEM micrographs revealed a certain number of pulled-out traces on the fracture surfaces of the test samples fabricated using maleated polypropylene as the compatibilizing agent, but no pulled-out traces and many broken fillers on the fracture surfaces of the test samples fabricated using maleated polyethylene as the compatibilizing agent, due to the stronger interfacial bonding.
机译：通过评估，研究了以低密度和高密度聚乙烯为基质聚合物，稻壳粉和木粉为增强填料以及不同增容剂制成的木质纤维素填料增强的聚乙烯生物复合材料的拉伸强度和悬臂梁冲击强度性能。它们的机械性能和断裂表面的形态特征。用两种不同的相容剂制成的测试样品被注塑成型，以确定它们的机械和形态性能。使用马来化聚乙烯作为增容剂制备的生物复合材料的拉伸强度优于使用马来化聚丙烯制备的生物复合材料的拉伸强度，这是因为前者增容剂在基质聚合物中的润湿性得到了改善。基于艾佐德冲击强度测试的结果，使用马来酸化聚乙烯作为增容剂制备的生物复合材料也得到了增韧。 SEM显微照片显示，在使用马来酸化聚丙烯作为增容剂制备的测试样品的断裂表面上有一定数量的拉出痕迹，但是在使用马来酸化聚丙烯制备的测试样品的断裂表面上没有拉出痕迹和许多破碎的填料。聚乙烯作为增容剂，因为它具有更强的界面粘合力。

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