工艺与制造英文2025被引 23
玄武岩纤维增强复合材料中可回收环氧树脂与常规环氧树脂性能对比
Comparison of the Performance of Basalt Fiber-Reinforced Composites Incorporating a Recyclable and a Conventional Epoxy Resin
Farid Taheri, S. Chowdhury, Ahmad Ghiaskar · Dalhousie University
摘要整理
本研究对比了以环保型可回收环氧树脂(Recyclamine®,BR)和常规室温固化环氧树脂体系(BE)为基体的玄武岩纤维增强复合材料的力学性能。采用真空辅助树脂传递模塑(VARTM)工艺制备试样,系统研究了复合材料的拉伸和压缩响应。实验结果表明,玄武岩-可回收树脂复合材料的拉伸强度(464 MPa)显著高于常规树脂体系(390.9 MPa);压缩强度两者相近,BR为237.7 MPa,BE为233.9 MPa,但BR表现出明显更优的延性,压缩应变容量达3.9%,而BE仅为1.1%。微观分析揭示了不同的失效机制:BR呈现渐进式破坏特征,而BE复合材料表现为脆性断裂。研究还对多种微观力学模型进行了验证,其预测结果与实验数据吻合度良好。统计分析显示结果具有高度一致性,变异系数(CoV)均低于10%。研究表明,玄武岩纤维-可回收环氧树脂复合材料因其均衡的力学性能和环保优势,可作为传统聚合物基树脂体系的有前景的可持续替代方案。
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