Enhancement of composite‐metal interfacial adhesion strength by dendrimer |
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| Authors: | Lei Mei Xiaodong He Yibin Li Qingyu Peng Rongguo Wang Jian Xu |
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| Affiliation: | 1. Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150080, P. R. China;2. State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080 |
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| Abstract: | The interface between carbon fiber reinforced polymer composites and metal plays a critical role in determining the strength of epoxy/metal laminated composites. We propose to introduce one dendrimer layer into the epoxy/metal interface, aiming to enhance the interfacial adhesion strength so that the interface could more effectively transfer the load from epoxy to metal. In this paper, the preparation and adsorption of dendrimer layer onto the alumina surface were systematically investigated. The results show that a highly stable and nanopatterned dendrimers layer was dip‐coated onto alumina substrates by adsorbing poly (amidoamine) dendrimers. It was confirmed that the dendrimers were adsorbed onto the alumina via acid‐base chemical interactions. The adsorption depends on the reaction time. The adhesion property between dendrimers and alumina was examined by sonication method. Copyright © 2010 John Wiley & Sons, Ltd. |
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| Keywords: | PAMAM alumina surface adhesion strength |
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