Evaluation of Mechanical and Water Absorption Behaviors of Jute/Carbon Fiber Reinforced Polyester Hybrid Composites

ABSTRACT

In this work, the influence of hybridizing jute and carbon fibers on the mechanical properties and water absorption behavior of polyester composites was evaluated. The composites were fabricated by using compression molding technique with discrete of overall fiber weight fraction, being pure jute or pure carbon fiber or hybrid. The outcomes of the study revealed that the jute fiber composites have lower mechanical properties and higher water absorption rate when compared with carbon fiber composites. While, the combined effect enhanced the mechanical property (tensile strength of 136.3 MPa, tensile modulus of 3403 MPa, flexural strength of 175.84 MPa, flexural modulus of 9350 MPa and impact strength of 47.43 kJ/m²) and reduced the moisture absorption rate and have good interfacial bonding with polyester which was confirmed in the morphological investigation using scanning electron microscopy. Furthermore, the mechanism of fracture in mechanical-tested samples was observed through scanning electron microscopic images. All the composites developed in the work was followed the Fickian behavior of water absorption.

摘要

研究了黄麻纤维与碳纤维混杂对聚酯复合材料力学性能和吸水性能的影响. 采用整体纤维重量分数离散的模压工艺制备了纯黄麻, 纯碳纤维或混杂纤维复合材料. 研究结果表明,与碳纤维复合材料相比,黄麻纤维复合材料具有较低的力学性能和较高的吸水率. 复合效应提高了材料的力学性能（拉伸强度为136.3MPa,拉伸模量为3403MPa,弯曲强度为175.84MPa弯曲模量为9350mpa,冲击强度为47.43kj/m2),吸湿率降低,与聚酯界面结合良好. 通过扫描电镜观察了力学试样的断裂机理. 所有在这项工作中开发的复合材料都遵循Fickian吸水行为

KEYWORDS:

• Hybrid composites
• jute/carbon
• polyester
• mechanical properties
• water absorption
• morphological analysis

关键词::

• Hybrid composites 混杂复合材料
• jute/carbon 黄麻/碳纤维
• polyester 聚酯
• mechanical properties 机械性能
• water absorption 吸水率
• morphological analysis.形态分析.