Development of highly electrically conductive composites for aeronautical applications utilizing bi-functional composite interleaves 机翻标题: 暂无翻译,请尝试点击翻译按钮。

2020-02-03

With the wide application of composite materials in modern aerospace industry, multifunctional carbon fibre composites are likely to play an important role in next generation aircraft. Here, carbon fibre reinforced epoxy composites were produced by using Functionalized Interleaf Technology (FIT). The electroless coppernickel plated polyester veils (CNPV) were used as the interleaves to replace the initial resinrich interlaminar regions with functional interlayers. The latter shows useful toughening efficiency, in which the G Ic and G IIc values for interleaved specimens increased by 59% and 31%, respectively. At the same time, the inplane ( xy ) and throughthickness ( z ) electrical conductivities were also improved from 74.12 Scm to 1079.6 Scm and 1.510 3 Scm to 5.29 Scm, respectively. Moreover, it is found that the effective electric contact area at electrodes was increased by incorporating additional functionalized veils. Therefore, the interleaf material can be characterized by its bifunctionality as it provides both toughening efficiency in the interlaminar region and the ability to form an electrically conductive path crossing the resinrich interlaminar layer, perpendicular to the laminate plane.

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