Radzuan Nabilah Afiqah Mohd, Tholibon Dulina, Sulong Abu Bakar, Muhamad Norhamidi, Che Haron Che Hassan
Department of Mechanical and Manufacturing Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia.
Department of Mechanical Engineering, Politeknik Merlimau, KB 1031, Pejabat Pos Merlimau, Merlimau 77300, Melaka, Malaysia.
Polymers (Basel). 2020 Jul 23;12(8):1643. doi: 10.3390/polym12081643.
Automotive parts, including dashboards and trunk covers, are now fabricated through a compression-molding process in order to produce lightweight products and optimize fuel consumption. However, their mechanical strength is not compromised to avoid safety issues. Therefore, this study investigates kenaf-fiber-reinforced polypropylene composites using a simple combing approach to unidirectionally align kenaf fibers at 0°. The kenaf composite was found to withstand a maximal temperature of 120 °C. The tensile and flexural strengths of the aligned kenaf composites (50 and 90 MPa, respectively) were three times higher than those of the commercialized Product T (between 39 and 30.5 MPa, respectively) at a temperature range of 90 to 120 °C. These findings clearly showed that the mechanical properties of aligned kenaf fibers fabricated through the combing technique were able to withstand high operating temperatures (120 °C), and could be used as an alternative to other commercial natural-fiber products.
汽车零部件，包括仪表盘和后备箱盖，现在通过压缩成型工艺制造，以生产轻质产品并优化燃油消耗。然而，它们的机械强度并未受到影响以避免安全问题。因此，本研究采用一种简单的梳理方法，将红麻纤维单向排列在0°，研究红麻纤维增强聚丙烯复合材料。发现红麻复合材料能承受最高120°C的温度。在90至120°C的温度范围内，排列好的红麻复合材料的拉伸强度和弯曲强度（分别为50和90 MPa）比商业化产品T（分别在39至30.5 MPa之间）高出三倍。这些发现清楚地表明，通过梳理技术制造的排列好的红麻纤维的机械性能能够承受高温（120°C），并且可以用作其他商业天然纤维产品的替代品。
