Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 159, Issue -, Pages 171-179Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2018.02.021
Keywords
Carbon fibres; Polymer-matrix composites (PMCs); Recycling; Electrical properties; Strength
Categories
Funding
- National Postdoctoral Program for Innovation Talents [BX201700079]
- China Postdoctoral Science Foundation [2017M620371]
- Opening Project of State Key Laboratory of Molecular Engineering of Polymers [K2018-05]
- National Natural Science Foundation of China [51573063]
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Lightweight electrically conductive biodegradable polymer composites have been considered as a promising environmental-friendly alternative to replace the traditional petroleum-based CPCs because of the economic and ecological drawbacks of petroleum-based plastics. Herein, we demonstrated a facile and effective way to fabricate poly (butylene succinate) (PBS)/carbon fiber (CF) composites foams with lightweight, high-strength and improved conductive networks through the combination of solvent mixing, micro-injection molding and supercritical carbon dioxide (Sc-CO2) foaming methods. Results showed that the resulting composite foams possessed much higher electrical conductivity (the percolation threshold decreased from 3.6 to 7.4 to 1.04-237 vol%), suggesting that the introduction of foaming technique could be beneficial for the formation of effective 3D conductivity networks. The composite foams presented a good compressive strength and a low density (reduced around similar to 50%). Moreover, effects of different length and content of CF on the mechanical and thermal performance, rheological behavior, foaming properties and electrical conductivities of PBS/CF composites have been investigated. (C) 2018 Elsevier Ltd. All rights reserved.
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