Abstract Surface topography induced high injection joining strength of polymer-metal composite and fracture mechanism
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Surface topography induced high injection joining strength of polymer-metal composite and fracture mechanism

机译：表面形貌诱导聚合物-金属复合材料的高注射接合强度及断裂机理

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摘要

AbstractA new injection joining technology based on surface topography was presented to form polymer-metal composite structure (PMCS) which plays a pivotal role in engineering field. A temperature control system facilitating filling of the surface structures by polymer melt was established. The quantitative relation between the surface topography and the interfacial mechanical strength was demonstrated, and the optimum dimension scope of the surface topography for achieving good mechanical performance of PMCS was determined. Using the optimum dimensions, the shearing strength between the metal and polymer interface reaches about eleven folds compared to the case with non-treated metal surfaces. The fracture mechanism of the PMCS was analyzed and disclosed. Meanwhile, for better understanding filling process of the structure by the melt, a numerical model was established to investigate effects of surface topography and the injection parameters on the melt flowing process. Experiment and simulation results can be used to guide the development of the new PMCS.
机译： 摘要 提出了一种基于表面形貌的新注射连接技术，以形成聚合物-金属复合结构（PMCS），该结构在工程中起着举足轻重的作用领域。建立了一种温度控制系统，该系统有利于通过聚合物熔体填充表面结构。证明了表面形貌与界面机械强度之间的定量关系，并确定了实现PMCS良好机械性能的表面形貌的最佳尺寸范围。使用最佳尺寸，与未处理金属表面的情况相比，金属和聚合物界面之间的剪切强度达到约11倍。分析并揭示了PMCS的断裂机理。同时，为了更好地理解熔体对结构的填充过程，建立了一个数值模型来研究表面形貌和注入参数对熔体流动过程的影响。实验和仿真结果可用于指导新PMCS的开发。

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