Halloysite‒gold core‒shell nanosystem synergistically enhances thermal conductivity and mechanical properties to optimize the wear-resistance of a pheonlic-PBO/PTFE textile composite liner  

作　　者：Yanling WANG Zhaozhu ZHANG Meng LIU Yaohui HE Peilong LI Junya YUAN Mingming YANG Weimin LIU 

机构地区：[1]State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China [2]Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Friction》2023年第12期2238-2252,共15页摩擦（英文版）

基　　金：The authors acknowledge the financial support of the National Natural Science Foundation of China(Nos.52075523 and 52005487).

摘　　要：Polymer-textile liner composites have potential applications in aerospace applications for reducing the abrasion damage of moving parts during operation owing to their self-lubrication,light weight,and high loading capacity.Herein,Au nanoparticles(AuNPs)are successfully loaded into the lumen of halloysite nanotubes(HNTs)to construct an HNTs‒Au peasecod core‒shell nanosystem to optimize the wear resistance of phenolic resin-based poly(p-phenylene benzobisoxazole)(PBO)/polytetrafluoroethylene(PTFE)textile composites.Transmission electron microscope(TEM)characterization reveals that the AuNPs are well-dispersed inside the HNTs,with an average diameter of 6‒9 nm.The anti-wear performance of the HNTs and Au-reinforced PBO/PTFE composites is evaluated using a pin-on-disk friction tester at 100 MPa.Evidently,the addition of HNTs‒Au induces a 27.9%decrease in the wear rate of the composites.Possible anti-wear mechanisms are proposed based on the analyzed results of the worn surface morphology and the cross-section of the tribofilm obtained by focused ion beam transmission electron microscopy.

关 键 词：textiles composites core‒shell wear HALLOYSITE 

分 类 号：TB332[一般工业技术—材料科学与工程]