Composites Part B: Engineering ( IF 12.7 ) Pub Date : 2023-05-05 , DOI: 10.1016/j.compositesb.2023.110776 Hanjun Gong , Yan Song , Guo Liang Li , Lin Zhang , Dan Guo , Guoxin Xie
An intelligent polymer composite with self-lubricating and self-healing functionalities is reported. The high strength intrinsic self-healing material that integrated hydrogen bond interactions into covalently linked networks was used as the matrix and the surface functionalized poly-alpha-olefin oil-containing microcapsules acted as lubricant fillers, which integrated the advantages of intrinsic self-healing and external self-lubricating strategies to realize organic combination of lubrication and healing functions in one system. The tensile and compressive strengths of the bifunctional composite can reach 59 MPa and 104 MPa, while the coefficient of friction (COF) and wear rate can reduce to 0.032 and 10−8 mm3/Nm. Besides, the bifunctional composite exhibited an excellent self-healing ability of scratch and the volume self-healing efficiency of 78% was achieved at 100 °C for 3 h. The developed high strength polymer material with self-lubricating and self-healing functionalities is highly expected for engineering applications.
中文翻译:
一种具有自润滑和自修复功能的智能聚合物复合材料
报道了一种具有自润滑和自修复功能的智能聚合物复合材料。以将氢键相互作用整合为共价连接网络的高强度本征自修复材料为基质,表面功能化的聚α-烯烃含油微胶囊作为润滑剂填料,综合了本征自修复和外部自润滑策略,在一个系统中实现润滑和愈合功能的有机结合。双功能复合材料的拉伸和压缩强度可以达到59 MPa和104 MPa,而摩擦系数(COF)和磨损率可以降低到0.032和10 -8mm3/纳米。此外,双功能复合材料表现出优异的划痕自修复能力,在 100 °C 下 3 h 的体积自修复效率达到 78%。所开发的具有自润滑和自修复功能的高强度高分子材料在工程应用中备受期待。