工艺与制造英文2020被引 30
快速固化环氧树脂复合材料与共固化热塑性边界层的界面机制及焊接行为研究
Investigation of the interphase mechanisms and welding behaviour of fast-curing epoxy based composites with co-cured thermoplastic boundary layers
Lucian Zweifel, Christian Brauner · FHNW University of Applied Sciences and Arts
摘要整理
本研究重点调查热塑性聚合物与快速固化环氧树脂体系Araldite LY3585/Aradur 3475的界面行为。选择三种相容性热塑性聚合物——聚甲基丙烯酸甲酯(PMMA)、非晶聚酰胺(PA12TR90)和聚羟基醚(酚醛树脂)——来确定其与环氧树脂体系的亲和力和界面形成情况。该研究的最终概念是在环氧树脂表面使用热塑性聚合物作为边界层，通过电阻焊接实现两个接合部件之间的连接。热塑性边界层通过固化过程中的共固化方式生成。实验结果表明，酚醛树脂和PMMA与所选环氧树脂体系具有高度相容性，焊接后具有优异的力学性能。其中酚醛树脂表现出最强的接头强度，平均搭接剪切强度达到25 MPa，充分证明了该接合技术在汽车和风能领域工业应用中的高应用潜力。
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