工艺与制造英文2026
香蕉纤维增强双向织物/不饱和聚酯树脂复合材料的真空辅助树脂传递模塑制造
Manufacturing of Banana Fiber-Reinforced Bidirectional Fabric with UPR Matrix by Vacuum-Assisted Resin Transfer Molding
Juan Altamiranda Suárez, Oswaldo Rivero-Romero, Luis Armando Espitia Sanjuán, Jimy Unfried-Silgado · ICT Research Group, Department of Mechanical Engineering, University of Córdoba, Montería 230002, Colombia
摘要整理
本研究探索了来自哥伦比亚科尔多瓦地区的香蕉假茎纤维作为增强体,通过真空辅助树脂传递模塑(VARTM)工艺制造聚合物复合材料的应用。纤维经过脱皮、40°C烘干、碱处理和环氧涂层处理。采用10根和15根连续纤维纱线(处理和未处理两种)制备平纹织物。实验分析包括纤维拔出试验、热重分析、傅里叶变换红外光谱、缠绕速度、表面捻角、纱线拉伸强度测试,以及织物的拉伸负荷、粘接性和渗透性测试,复合材料的拉伸和弯曲强度测试。处理后纱线直径略有增加,纤维提取率为25%,低于未处理纱线的33%。虽然处理后织物表现出更好的渗透性和树脂浸润性,但未处理织物的力学性能更优,拉伸负荷达2.33 kN,而处理纱线仅为1.37 kN。三层未处理织物增强复合材料的最高拉伸强度为76.56 MPa,单层未处理织物复合材料的最佳弯曲强度为86.93 MPa。研究结果表明未处理香蕉纤维织物在结构复合材料应用中具有良好的增强潜力。
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