工艺与制造英文2021被引 57
纵向玄武岩/机织玻纤增强不饱和聚酯混杂复合材料的动力学性能和热性能
Dynamic Mechanical Properties and Thermal Properties of Longitudinal Basalt/Woven Glass Fiber Reinforced Unsaturated Polyester Hybrid Composites
Nur Izzah Nabilah Haris, R.A. Ilyas, Mohamad Zaki Hassan, S.M. Sapuan, A. Atiqah, Khairur Rijal Jamaludin, Sheikh Ahmad Zaki, Faizir Ramlie · Universiti Putra Malaysia
摘要整理
本研究系统调查了玄武岩/机织玻纤增强聚合物(BGRP)混杂不饱和聚酯复合材料的力学、热学和化学性能。采用傅里叶变换红外光谱(FTIR)分析化学性质,通过动力学机械分析(DMA)和热机械分析(TMA)测定力学和热学性能。动力学机械性能以储能模量、损耗模量和阻尼因子表征。FTIR结果表明,单一纤维和混杂纤维的加入不改变基体的化学性质。DMA结果显示,含7.5 wt%玄武岩纤维和22.5 wt%玻璃纤维的B7.5/G22.5复合材料表现出最高的弹性和粘性性能,其储能模量(8.04×10⁹ MPa)和损耗模量(1.32×10⁹ MPa)均高于其他样品。所有增强复合材料的阻尼性能均优于纯基体,但混杂化未进一步提升阻尼效果。分析表明,含22.5 wt%玄武岩纤维和7.5 wt%玻璃纤维的B22.5/G7.5复合材料具有最高的玻璃化转变温度(Tg=70.80 °C),相比纯基体提高了15 °C。TMA数据表明增强复合材料的尺寸稳定性相对低于纯基体,特别是在50~80 °C温度范围内。总体而言,玄武岩纤维与玻璃纤维在不饱和聚酯中的混杂增强形成的复合材料,其力学和热学性能均优于单一纤维增强复合材料。
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