PBT-anodized aluminum alloy direct joining: Characteristic injection speed dependence of injected polymer replicated into nanostructures
PBT-anodized aluminum alloy direct joining: Characteristic injection speed dependence of injected polymer replicated into nanostructures
复制标题
DOI：
10.1016/j.polymertesting.2019.02.006
复制
发表时间：
2019-05-01
期刊：
影响因子：
5.1
通讯作者：
Kajihara, Yusuke
中科院分区：
文献类型：
--
作者：
Kadoya, Shotaro;Kimura, Fuminobu;Kajihara, Yusuke
粗糙的金属部件和聚合物可以通过典型的注塑成型连接起来。我们通过阳极氧化在铝合金表面形成纳米孔，并将其与聚对苯二甲酸丁二醇酯连接。拉伸测试表明，阳极氧化金属与聚合物的结合剪切强度超过20 Mpa。STEM-EDS分析表明，聚合物已复制到纳米孔中。我们发现注射速度与接头强度呈负相关，这可能是由于纳米孔的断裂造成的。此外，对聚合物温度的测量结果表明，局部热分解会削弱接头，特别是在纳米结构中。在阳极气孔中，接头强度对注射速度的依赖关系与NMT方法相似。然而，对于其他表面处理，还没有发现在高注射速度下填充压力和接头强度之间的特征相关性。这些结果为深入了解纳米结构中注入聚合物的行为提供了依据。
Roughened metal pieces and polymer can be joined via typical injection molding. We formed nanopores on the aluminum alloy surface by anodization and joined the alloy with polybutylene terephthalate. Tensile tests indicated the anodized metal and polymer joined with a shear strength of over 20 MPa. STEM-EDS analysis showed the polymer was replicated into the nanopores. We revealed the injection speed and joint strength have a negative correlation, which may result from the breaking of the nanopores. Additionally, measurement results for the polymer temperature indicated the local thermal decomposition could weaken the joint, especially in nanostructures. The joint strength dependence on the injection speed in anodic pores was similar to that of the NMT method. However, the characteristic correlation between the pack pressure and joint strength at high injection speeds has not been found for other surface treatments. These results provide insight into the behavior of injected polymers in nanostructures.