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Influence of fluidity improver on metal-polymer direct joining via injection molding
Precision Engineering ( IF 3.6 ) Pub Date : 2021-07-06 , DOI: 10.1016/j.precisioneng.2021.07.001
Shuohan Wang 1 , Fuminobu Kimura 1, 2 , Shuaijie Zhao 2 , Eiji Yamaguchi 3 , Yuuka Ito 3 , Yusuke Kajihara 1, 2
Affiliation  

Injection molded direct joining (IMDJ) is one type of metal-plastic direct joining methods. IMDJ first treats the metal surface and then injects melted polymer onto the surface via injection molding technology. IMDJ method is excellently suitable for a mass production environment for the injection molding technology characteristics of high-speed production. However, one of the factors limiting the application of IMDJ is its low joining strength. In this study, we improved joining performance by mixing a flow modifier (flow modifier OSGOL MF-11) in the engineering polymer polyamide 6 (PA6). We studied the influence of the additive amount on the joining strength. It was found that mixing OSGOL MF-11 in PA6 is a feasible method to improve the joining strength, with maximum improvement by up to 75%. The mechanical interlocking improvement by higher fluidity was confirmed by cross-sectional analysis. FTIR spectra analysis results showed the possibility of chemical interaction occurrence, which causes the joint to be more robust. Materials modification by additives is much easier to apply compared to modification processing technology. The results provide new ideas for IMDJ development.



中文翻译:

流动性改进剂对金属-聚合物注射成型直接连接的影响

注塑直接连接 (IMDJ) 是一种金属-塑料直接连接方法。IMDJ 首先处理金属表面,然后通过注塑技术将熔化的聚合物注射到表面上。IMDJ 方法非常适合于高速生产的注塑成型技术特点的大规模生产环境。然而,限制IMDJ应用的因素之一是其接合强度低。在本研究中,我们通过在工程聚合物聚酰胺 6 (PA6) 中混合流动改性剂(流动改性剂 OSGOL MF-11)来提高接合性能。我们研究了添加量对接合强度的影响。研究发现,在 PA6 中混合 OSGOL MF-11 是一种提高接合强度的可行方法,最大提高可达 75%。横截面分析证实了更高流动性带来的机械联锁改进。FTIR 光谱分析结果表明可能发生化学相互作用,从而使接头更加坚固。与改性加工技术相比,添加剂改性材料更容易应用。结果为IMDJ的发展提供了新的思路。

更新日期:2021-07-20
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