Joining of metal and non-polar polypropylene composite through a simple functional group seeding layer
Joining of metal and non-polar polypropylene composite through a simple functional group seeding layer
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DOI：
10.1016/j.jmapro.2022.11.022
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发表时间：
2022-11
影响因子：
6.2
通讯作者：
A. Khan;F. Liu;P. Dong
中科院分区：
文献类型：
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作者：
A. Khan;F. Liu;P. Dong
聚丙烯（PP）及其复合材料由于其固有的化学不相容性而最难与金属直接连接。本文提出了一种简单、有效、成本效益高的方法，通过在PA6薄膜插入层上接种官能团，将PP复合材料点焊到铝合金上，而不需要进行表面或材料预处理。由此产生的联合载荷能力被证明是足够高的，一贯发展失败的PP基板在搭接剪切拉伸试验远离粘接区域。结合界面的微观结构特征进行了详细研究。结合机制，然后描述在这项研究中获得的详细观察的基础上。
Polypropylene (PP) and its composites are one of the hardest to directly join with metals due to their inherent chemical incompatibility. This paper presents a simple, efficient, and cost-effective method for joining PP composite to aluminum alloy in spot welding configuration by seeding the functional groups via an insert layer of PA6 thin film without requiring surface or material pre-treatment. The resulting joint loading capacity is shown to be sufficiently high to consistently develop failures in PP substrates in lap shear tensile tests away from the bonded area. Joint interface microstructure features are examined in detail. Bonding mechanisms are then described based on the detailed observations obtained in this study.