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Updated: Jan 20, 2026
Uniaxial Tension Test of Fiber-Reinforced Polymeric Materials
Published on: April 30, 2023
Influence of Diameter on the Templated Crystallization of Polyethylene/Carbon Material Fiber Composites under Intense
Xiaochao Xia1, Xi Zhang2, Dandan Xie3
1School of Materials Science and Engineering, and Chongqing Key Laboratory of Mold Technology, Chongqing University of Technology, Chongqing 400054, China.
Abstract:
In this study, carbon fibers (CFs) and carbon nanofibers (CNFs) were introduced into polyethylene (PE) and intensive shear flow was imposed on the melt during the melt second flow caused by gas penetrating the melt during the gas-assisted injection molding (GAIM). The effect of fiber diameter on crystalline morphologies of obtained composites was deeply studied. The results revealed the fact that no matter whether CFs or CNFs were introduced into the PE matrix or not, the orientation degree of PE lamellae would increase during the melt second flow. Hybrid shish-kebab structures were difficult to be formed in GAIM CF/PE composites and only a few oriented PE lamellae overgrew on the local surface of CFs. However for GAIM CNF/PE composites, the formation of hybrid shish-kebab structures was clearly observed in the entire thickness. The structural diversity was mainly ascribed to the difference of CF diameter, showing obvious size-dependent effect.
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