Research on Properties of Polypropylene/Flake Graphite Molded Composite Materials Haijun Zhou, Mengmeng Zhou, Xiaolei Zhang, Lu Bai, Xiaoqi Chen, Fen Zhang, ChengYu Li and Yantao Li MATEC Web Conf., 382 (2023) 01009 Published online: 26 June 2023 DOI: 10.1051/matecconf/202338201009