The Synergistic Effect of WS 2 and SWNTs on Tribological Performance of Polyether MDI Polyurethane Elastomer under Dry and Wet Friction Conditions. - Lu, Gang; Shuai, Changgeng; Liu, Yinsong; Yang, Xue; Hu, Xiaoyang (Nanomaterials (2079-4991), 2022)