Formation of the three-dimensional (3D) interlinked hybrid shish-kebabs in injection-molded PE/PE-g-CNF composite by “structuring” processing

Publication date: 22 March 2018 Source:Composites Science and Technology, Volume 157 Author(s): Xiao-Chao Xia, Dan-Dan Xie, Yan-Hao Huang, Ming-Bo Yang The target of this study is to construct 3D interlinked structure that mimicks the structure of shell by “structuring” processing. Therefore, lightly cross-linked HDPE and PE-g-CNF that aligned along the flow direction by intense shear flow were purposely designed. During this process, strong interfacial ligaments were built on the surface of ordered CNFs. At the same time, innumerable linked kababs were formed, and they served as bridges to tightly link adjacent hybrid shish-kebab structures. The 3D interlinked structure endowed composites with unprecedented mechanical properties. Specifically, compared with PE and R-PE samples, the yield strength increased by 137.7% and 79.0%, and Young's modulus enhanced by 160.6% and 109.6%. What's more, the 3D interlinked structure overcame the brittle fracture of composites. In this light, the proposed method is promising to widen the application of structural bionics in industrial manufacture. Graphical abstract

Source: Composites Science and Technology - February 10, 2018 Category: Science Source Type: research