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Effect of Stacking Sequences, Fabric Orientations, and Chemical Treatment on the Mechanical Properties of Hybrid Woven Jute–Ramie Composites
International Journal of Precision Engineering and Manufacturing-Green Technology ( IF 4.2 ) Pub Date : 2021-02-15 , DOI: 10.1007/s40684-021-00311-0
C. Tezara , M. Zalinawati , J. P. Siregar , J. Jaafar , M. H. M. Hamdan , A. N. Oumer , K. H. Chuah

Natural fibres have been widely used in advanced applications, especially in the automotive industry. These fibres are inexpensive, non-abrasive, environmentally friendly, biodegradable, and possess low density with good mechanical properties. The main issue in using natural fibres is their incompatibility with a polymer matrix that lowers the mechanical properties. Therefore, this research analyses the effect of stacking sequences, fibre orientations, and alkali treatment on the mechanical properties of hybrid jute (J) and ramie (R) reinforced vinyl ester (VE) composites. Initially, woven fibres were fabricated based on the 3 and 4—layer stacking sequence with 0° orientation. The characterisation was done to analyse its properties. It was found that the RJJR stacking sequence possessed a tensile strength higher value of 28.90 MPa. The results for the RJJR sequence were fabricated with various fibre orientations such as 0°, 30°, 45°, and 90° to understand the effect of fibre orientation towards the tensile and flexural properties. The tensile and flexural strength with 0° fibre orientation is significantly higher than the other orientations with values of 28.90 MPa and 66.81 MPa, respectively. Besides, alkali treatment with 5 wt.% and 10 wt.% was used to enhance the mechanical properties, where 0° RJJR with 5 wt.% indicated maximum flexural strength with 34.50% increment compared to untreated RJJR. In conclusion, the combination of fibre orientation and lower alkali treatment concentration (5 wt.%) is highly beneficial in improving fibre hybrid composites' mechanical properties.



中文翻译:

堆叠顺序,织物取向和化学处理对混合编织黄麻-ami麻复合材料力学性能的影响

天然纤维已广泛用于高级应用中,尤其是在汽车工业中。这些纤维便宜,不磨蚀,环保,可生物降解,并且具有低密度和良好的机械性能。使用天然纤维的主要问题是它们与降低机械性能的聚合物基质不相容。因此,本研究分析了堆叠顺序,纤维取向和碱处理对混合黄麻(J)和麻(R)增强乙烯基酯(VE)复合材料的机械性能的影响。最初,编织纤维是基于0方向的3层和4层堆叠顺序制造的。进行表征以分析其性质。发现RJJR堆叠顺序具有28.90MPa的更高的拉伸强度值。RJJR序列的结果是使用各种纤维方向(例如0°,30°,45°和90°)制作的,以了解纤维方向对拉伸和弯曲特性的影响。纤维取向为0°时的拉伸强度和弯曲强度分别明显高于其他取向,分别为28.90 MPa和66.81 MPa。此外,使用5重量%和10重量%的碱处理来增强机械性能,其中与未处理的RJJR相比,具有5重量%的0°RJJR表示最大挠曲强度,具有34.50%的增量。总之,纤维取向和较低的碱处理浓度(5 wt。%)的结合对改善纤维杂化复合材料的机械性能非常有利。和90°了解纤维取向对拉伸和弯曲性能的影响。纤维取向为0°时的拉伸强度和弯曲强度分别明显高于其他取向,分别为28.90 MPa和66.81 MPa。此外,使用5重量%和10重量%的碱处理来增强机械性能,其中与未处理的RJJR相比,具有5重量%的0°RJJR表示最大挠曲强度,具有34.50%的增量。总之,纤维取向和较低的碱处理浓度(5 wt。%)的结合对改善纤维杂化复合材料的机械性能非常有利。和90°了解纤维取向对拉伸和弯曲性能的影响。纤维取向为0°时的拉伸强度和弯曲强度分别明显高于其他取向,分别为28.90 MPa和66.81 MPa。此外,使用5重量%和10重量%的碱处理来增强机械性能,其中与未处理的RJJR相比,具有5重量%的0°RJJR表示最大挠曲强度,具有34.50%的增量。总之,纤维取向和较低的碱处理浓度(5 wt。%)的结合对改善纤维杂化复合材料的机械性能非常有利。纤维取向为0°时的拉伸强度和弯曲强度分别明显高于其他取向,分别为28.90 MPa和66.81 MPa。此外,使用5重量%和10重量%的碱处理来增强机械性能,其中与未处理的RJJR相比,具有5重量%的0°RJJR表示最大挠曲强度,具有34.50%的增量。总之,纤维取向和较低的碱处理浓度(5 wt。%)的结合对改善纤维杂化复合材料的机械性能非常有利。纤维取向为0°时的拉伸强度和弯曲强度分别明显高于其他取向,分别为28.90 MPa和66.81 MPa。此外,使用5重量%和10重量%的碱处理来增强机械性能,其中与未处理的RJJR相比,具有5重量%的0°RJJR表示最大挠曲强度,具有34.50%的增量。总之,纤维取向和较低的碱处理浓度(5 wt。%)的结合对改善纤维杂化复合材料的机械性能非常有利。

更新日期:2021-02-16
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