• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2018, Vol. 54 ›› Issue (12): 148-155.doi: 10.3901/JME.2018.12.148

• 材料科学与工程 • 上一篇    下一篇

界面微构对注射成型铝塑复合件性能的影响研究

刘傅文, 李熹平, 宫宁宁, 曾水萍, 黄平, 杨灿   

  1. 浙江师范大学工学院 金华 321004
  • 收稿日期:2017-05-08 修回日期:2017-11-08 出版日期:2018-06-20 发布日期:2018-06-20
  • 通讯作者: 李熹平(通信作者),男,1981年出生,博士,副教授,硕士研究生导师。主要从事先进材料成型技术、聚合物加工等方面的研究工作。E-mail:xpl2005@163.com
  • 作者简介:刘傅文,男,1992年出生。主要研究方向为金属-聚合物复合构件成型技术。E-mail:liufuwen1992@163.com
  • 基金资助:
    浙江省自然科学基金(LY18E050011)和国家自然科学基金(51675489)资助项目。

Effect of Interfacial Microstructure on Properties of Aluminum-plastic Composite

LIU Fuwen, LI Xiping, GONG Ningning, ZENG Shuiping, HUANG Ping, YANG Can   

  1. College of Engineering, Zhejiang Normal University, Jinhua 321004
  • Received:2017-05-08 Revised:2017-11-08 Online:2018-06-20 Published:2018-06-20

摘要: 铝塑复合构件具有强度高、质量小、易成型复杂结构等优点,在航天、能源、汽车、通信等领域的应用逐渐广泛。提出采用注射方法直接成型铝-塑复合构件的方法,采用阳极氧化对铝合金表面进行处理,获取金属表面的纳米级微结构形态。为提高金属与聚合物之间的界面作用,将阳极氧化的金属表面进行活化处理,X射线能谱分析仪(X-ray photoelectron spectroscopy,XPS)对处理后的表面微结构进行形态和成分表征,探讨活化处理后铝合金表面组织成分的变化,并优化获得了最佳的处理时间。对表面处理完成的铝合金试样置入高温模具中进行注塑成型,成功获得了铝-塑复合构件。采用激光共焦扫描显微镜(Laser scanning confocal microscopy,LSCM)和扫描电子显微镜(Scanning electron microscope,SEM)分析拉伸剪切断裂后金属表面的界面形态,讨论了铝塑复合件的失效原因和机理,为金-塑复合产品的生产成型提供了理论基础。

关键词: 表面活化, 铝塑结合, 阳极氧化, 注射成型

Abstract: Aluminum-plastic composite components, with high strength, low weight, easy to shape complex structures and so on, are gradually wide application in the aerospace, energy, automotive, communications and other fields. A method producing aluminium-plastic composite by injection technology is proposed. The aluminum alloy surface is treated by anodic oxidation to obtain the nanoscale microstructure. To improve the interfacial bonding strength between the metal and the polymer, the anodized metal surface is activated, and the surface microstructure is characterized by X-ray energy dispersive spectroscopy(XPS). The composition of the metal surface is investigated, and the processing time is optimized as well. Metal samples after treatment are placed in a mold with high temperature for the following injection process, and the aluminium-plastic composites are successfully obtained. The morphology of the metal surface after tensile fracture was examined by laser scanning confocal microscopy(LSCM) and scanning electron microscope(SEM). The failure mechanism of the aluminum-plastic composite is also analysed. The presented results can be used as a theoretical basis for the actual production of the product.

Key words: aluminum-plastic combination, anodizing, injection molding, surface activation

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