Amornsakchai Taweechai, Duangsuwan Sorn, Mougin Karine, Goh Kheng Lim
Polymer Science and Technology Program, Department of Chemistry, Faculty of Science, Mahidol University, Phuttamonthon 4 Road, Salaya, Nakhon Pathom 73170, Thailand.
Center of Sustainable Energy and Green Materials, Faculty of Science, Mahidol University, Phuttamonthon 4 Road, Salaya, Nakhon Pathom 73170, Thailand.
Polymers (Basel). 2023 Sep 7;15(18):3691. doi: 10.3390/polym15183691.
In this study, we compare the reinforcing efficiency of pineapple leaf fiber (PALF) and cultivated flax fiber in unidirectional poly(butylene succinate) composites. Flax, known for robust mechanical properties, is contrasted with PALF, a less studied but potentially sustainable alternative. Short fibers (6 mm) were incorporated at 10 and 20% wt. levels. After two-roll mill mixing, uniaxially aligned prepreg sheets were compression molded into composites. At 10 wt.%, PALF and flax exhibited virtually the same stress-strain curve. Interestingly, PALF excelled at 20 wt.%, defying its inherently lower tensile properties compared to flax. PALF/PBS reached 70.7 MPa flexural strength, 2.0 GPa flexural modulus, and 107.3 °C heat distortion temperature. Comparable values for flax/PBS were 57.8 MPa, 1.7 GPa, and 103.7 °C. X-ray pole figures indicated similar matrix orientations in both composites. An analysis of extracted fibers revealed differences in breakage behavior. This study highlights the potential of PALF as a sustainable reinforcement option. Encouraging the use of PALF in high-performance bio-composites aligns with environmental goals.
在本研究中，我们比较了菠萝叶纤维（PALF）和种植亚麻纤维在单向聚丁二酸丁二醇酯复合材料中的增强效率。亚麻以其强大的机械性能而闻名，与PALF形成对比，PALF是一种研究较少但具有潜在可持续性的替代品。将短纤维（6毫米）以10%和20%的重量比加入。经过双辊混合后，将单轴排列的预浸料片材压缩模塑成复合材料。在10%重量比时，PALF和亚麻表现出几乎相同的应力-应变曲线。有趣的是，在20%重量比时，PALF表现出色，尽管其固有拉伸性能低于亚麻。PALF/ PBS的弯曲强度达到70.7 MPa，弯曲模量达到2.0 GPa，热变形温度达到107.3℃。亚麻/PBS的可比数值分别为57.8 MPa、1.7 GPa和103.7℃。X射线极图表明两种复合材料中的基体取向相似。对提取纤维的分析揭示了断裂行为的差异。本研究突出了PALF作为可持续增强材料的潜力。鼓励在高性能生物复合材料中使用PALF符合环境目标。
