Interfacial interaction and joining property of direct injection-molded polymer-metal hybrid structures: A molecular dynamics simulation study
Interfacial interaction and joining property of direct injection-molded polymer-metal hybrid structures: A molecular dynamics simulation study
复制标题
直接注塑聚合物-金属杂化结构的界面相互作用和连接性能：分子动力学模拟研究
DOI：
10.1016/j.apsusc.2019.01.286
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发表时间：
2019-06
影响因子：
6.7
通讯作者：
Jiang Bingyan
中科院分区：
文献类型：
--
作者：
Zhou Mingyong;Xiong Xiang;Drummer Dietmar;Jiang Bingyan
聚合物-金属混合结构已经越来越多地用于取代金属部件。直接注射连接技术是制备聚合物-金属混合结构最有前途的技术之一。本文采用分子动力学方法研究了复合材料的界面相互作用和连接性能。建立了不同表面结构的铝基界面模型。系统地探讨了表面结构、非键相互作用强度和拔出力对分离过程的影响。模拟结果表明，在连接过程中，聚合物结构沿着z轴方向存在明显的差异。受界面相互作用的影响，原子密度在界面附近最大。随着分离的继续，在界面附近观察到越来越多的空隙。靠近Al基体的聚合物链被拉伸得很大，而远离界面的聚合物链相对稳定。然而，在分离过程中的回转半径的变化是高得多，无论基板结构。接触区域主要贡献相互作用能，而在底切区域中形成的机械互锁贡献最大内力和分离功。此外，界面相互作用还受到非粘结相互作用强度和拔出力的影响。
Polymer-metal hybrid structures have been increasingly used to replace metallic components. Direct injection joining is one of the most promising technologies in fabricating polymer-metal hybrid structure. In this study, molecular dynamics method was used to study the interfacial interaction and joining property. Interfacial models with different surface structures on aluminum (Al) substrate were constructed. The influences of surface structure, non-bonded interaction strength, and pull-out force during the separation were systematically explored. Simulation results show that an obvious difference in polymer structure along z-axis is observed during the joining process. Influenced by the interfacial interaction, the atomic density is at its largest near the interface. As the separation continues, growing voids are observed near the interface. Polymer chains close to the Al substrate are greatly stretched, while the chains far away from the interface are relatively steady. Nevertheless, the changes in radius of gyration during the separation are much higher regardless of the substrate structures. The contact area mainly contributes to the interaction energy, whereas the mechanical interlocking formed in the undercut area contributes to the maximum inner force and work of separation. Moreover, the interfacial interaction is also affected by the non-bonded interaction strength and the pull-out force.
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影响因子：
6.3
作者：
Asuka Suzuki;Y. Arai;N. Takata;M. Kobashi
通讯作者：
Asuka Suzuki;Y. Arai;N. Takata;M. Kobashi
影响因子：
2.3
作者：
Juan Carlos Suárez Bermejo;Santiago Miguel Alonso;M. Cea;Francisco Lopez Martin
通讯作者：
Juan Carlos Suárez Bermejo;Santiago Miguel Alonso;M. Cea;Francisco Lopez Martin
影响因子：
1.3
作者：
Pina-Estany, J.;Garcia-Granada, A. A.
通讯作者：
Garcia-Granada, A. A.
DOI：
10.1007/s00170-011-3573-2
发表时间：
2012-04
期刊：
The International Journal of Advanced Manufacturing Technology
影响因子：
--
作者：
Mário Correia;A. Miranda;M. Oliveira;C. Capela;A. S. Pouzada
通讯作者：
Mário Correia;A. Miranda;M. Oliveira;C. Capela;A. S. Pouzada
影响因子：
4.6
作者：
Prathab, B.;Subramanian, V.;Aminabhavi, T. M.
通讯作者：
Aminabhavi, T. M.