This study aims to increase effectivity of the overmolding approach for thermoset/thermoplastics hybrid composites. The samples were prepared by overmolding of polyamide-6 (PA6) onto fully cured continuous carbon fiber-reinforced epoxy composites with the aid of hot melt adhesives. Specifically, the influence of hot melt adhesive application at the interface between the thermoset and thermoplastic parts of hybrid composites was investigated. The experimental scheme highlights the effects of hot melt type and adhesive layer thickness (ALT) on the performance of these hybrid joints. Thermoplastic polyurethane (TPU) based hot melt adhesive performed better adhesion characteristics among others (copolyesters, polyolefin) according to findings from lap shear test and DMA analysis. The fracture surfaces observed with optical microscopy and SEM also confirmed the synergistic effect of these parameters.

这项研究旨在提高热固性/热塑性杂化复合材料包覆成型方法的有效性。通过在热熔性粘合剂的帮助下将聚酰胺6（PA6）包覆成型到完全固化的连续碳纤维增强环氧复合材料上来制备样品。具体而言，研究了在混合复合材料的热固性和热塑性部件之间的界面处热熔胶施加的影响。实验方案强调了热熔类型和粘合层厚度（ALT）对这些混合接头性能的影响。根据搭接剪切试验和DMA分析的结果，基于热塑性聚氨酯（TPU）的热熔胶具有更好的粘合特性（共聚酯，聚烯烃）。