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首页> 外文期刊>Journal of Materials Processing Technology >Influence of MA-g-PP on abrasive wear behaviour of chopped sisal fibre reinforced polypropylene composites
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Influence of MA-g-PP on abrasive wear behaviour of chopped sisal fibre reinforced polypropylene composites

机译：MA-g-PP对短剑麻纤维增强聚丙烯复合材料磨粒磨损性能的影响

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摘要

In this paper, chopped sisal fibre reinforced polypropylene composites with and without maleic anhydride grafted polypropylene (MA-g-PP) were developed. Different amounts of MA-g-PP, e.g. 1, 2 and 5-wt% were added to modify the composites. Abrasive wear and mechanical properties of sisal fibre reinforced polypropylene composites were determined. Addition of MA-g-PP improved the mechanical properties of the composite. Effects of MA-g-PP coupling agent, sliding distance and load on abrasive wear behaviour of sisal fibre reinforced PP composites were studied by using a SUGA abrasion tester. Addition of MA-g-PP coupling agent has significantly influenced the wear resistance of sisal fibre reinforced PP composites. It is observed in chopped sisal fibre reinforced polypropylene composite that initially at low loads (i.e. 1 N and 3 N), sample having 1-wt% MA-g-PP exhibited maximum wear resistance but at higher applied loads (i.e. 5 N and 7 N), sample having 2-wt% MA-g-PP offered maximum wear resistance. The higher concentration of MA-g-PP, i.e. 5-wt% has increased the internal slippage of chain molecules, leading to lowering the wear resistance of composite. Worn and fractured surfaces were analyzed and discussed using SEM.
机译：在本文中，开发了具有和不具有马来酸酐接枝聚丙烯（MA-g-PP）的短剑麻纤维增强聚丙烯复合材料。不同量的MA-g-PP，例如加入1、2和5-wt％以改性复合材料。测定了剑麻纤维增强聚丙烯复合材料的磨料磨损和力学性能。 MA-g-PP的添加改善了复合材料的机械性能。利用SUGA磨耗仪研究了MA-g-PP偶联剂，滑动距离和载荷对剑麻纤维增强PP复合材料磨料磨损行为的影响。 MA-g-PP偶联剂的加入已显着影响剑麻纤维增强PP复合材料的耐磨性。在短切的剑麻纤维增强聚丙烯复合材料中观察到，最初在低负荷（即1 N和3 N）下，具有1-wt％MA-g-PP的样品表现出最大的耐磨性，但在较高的施加负荷下（即5 N和7 N），具有2 wt％MA-g-PP的样品具有最大的耐磨性。 MA-g-PP的较高浓度（即5 wt％）增加了链分子的内部打滑，导致复合材料的耐磨性降低。使用SEM分析和讨论磨损和断裂的表面。

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