作者
Xiaoling Luo, Muchao Qu, Dirk W Schubert
发表日期
2021/2
期刊
Polymer Composites
卷号
42
期号
2
页码范围
548-558
出版商
John Wiley & Sons, Inc.
简介
Poly(methyl methacrylate) (PMMA) composites containing carbon fibers (CFs) with the controlled aspect ratio (AR) at various concentrations were produced and hot pressed into rectangular sheets with a variety of thickness. The orientation of CFs on the surface and inside the specimen was obtained, and the conductivity σ in three different directions (X‐length, Y‐width, Z‐thickness) were investigated. A preferential orientation of CFs in XY plane was found inside the samples, resulting in higher σX and σY. The orientation of CFs in Z direction increases with the sample thickness increasing, leading to an increasing σZ. Thus the anisotropic conductivity between σX (or σY) and σZ reduces from three orders of magnitude to one order of magnitude. The percolation thresholds (Φc) in three directions of the samples were revealed by fitting with McLachlan GEM equation, which lead to Φc,X ≈ Φc,Y ≈ Φc,Z, independent …
学术搜索中的文章
X Luo, M Qu, DW Schubert - Polymer Composites, 2021