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首页> 外文期刊>Journal of Applied Polymer Science >Effect of silane-based coupling agents and acrylic acid based compatibilizers on mechanical properties of oil palm empty fruit bunch filled high-density polyethylene composites
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Effect of silane-based coupling agents and acrylic acid based compatibilizers on mechanical properties of oil palm empty fruit bunch filled high-density polyethylene composites

机译：硅烷类偶联剂和丙烯酸类增容剂对油棕空果束填充高密度聚乙烯复合材料力学性能的影响

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The mechanical properties of composites consisting of high-density polyethylene (HDPE) and oil palm fibrous wastes-that is, empty fruit bunch (EFB)-have been investigated. Tensile modulus showed an increase, whereas tensile strength, elongation at break, and impact strength decreased with increasing filler loading. The strong tendency of EFB to exist in the form of fiber bundles and the poor filler-matrix interaction is believed to be responsible for the poor strength displayed by the composites. Attempts to improve these properties using two types of coupling agents, that is, 3-aminopropyltrimethoxysilane (S-APM) and 3-aminopropyltriethoxysilane (3-APM) and two types of compatibilizers, poly(propylene-acrylic acid) (PPAA) and poly(propylene-ethylene-acrylic acid), (PPEAA), are described. While almost all chemical treatments increased the stiffness of the composites, limited improvement has been observed in the case of tensile strength. This have been attributed to the presence of fiber bundles that remain intact even after several types of chemical treatment have been carried out. Thus, the role of EFB as reinforcing agent is not fully realized. Scanning electron microscopy (SEM) micrographs revealed that the main energy-absorbing mechanisms contributing towards toughness enhancement is through the fiber bundle pull-out process. (C) 1998 John Wiley & Sons, Inc. [References: 25]
机译：已经研究了由高密度聚乙烯（HDPE）和油棕纤维废物（即空果束（EFB））组成的复合材料的机械性能。拉伸模量显示增加，而抗张强度，断裂伸长率和冲击强度随着填料载荷的增加而降低。 EFB以纤维束形式存在的强烈趋势以及不良的填料-基体相互作用被认为是造成复合材料强度下降的原因。尝试使用两种类型的偶联剂（3-氨基丙基三甲氧基硅烷（S-APM）和3-氨基丙基三乙氧基硅烷（3-APM））以及两种类型的增容剂，聚（丙烯-丙烯酸）（PPAA）和聚描述了（丙烯-乙烯-丙烯酸）（PPEAA）。尽管几乎所有化学处理都提高了复合材料的刚度，但在拉伸强度方面却观察到有限的改进。这归因于即使在进行了几种类型的化学处理后仍保持完整的纤维束的存在。因此，不能完全实现EFB作为增强剂的作用。扫描电子显微镜（SEM）显微照片显示，有助于提高韧性的主要能量吸收机制是通过纤维束拉出过程。 （C）1998 John Wiley＆Sons，Inc. [参考：25]

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