Research on the aging mechanism of polypropylene nonwoven geotextiles under simulated heavy metal aging scenarios - Yuqi Peng; Zongqiang Zhu; Jun Zhang; Yinian Zhu; Lihao Zhang; Yinming Fan; Xiaobin Zhou; Shen Tang; Yusheng Lu; Wenqian Li; Yifan Xin (Geotextiles and Geomembranes, 2024)