Page 14 - 《摩擦学学报》2020年第4期

第 40 卷 第 4 期 摩 擦 学 学 报 Vol 40 No 4
2020 年 7 月 Tribology Jul, 2020

DOI: 10.16078/j.tribology.2019235

多孔PI/MSNT复合含油润滑薄膜的设计制备

及其摩擦学性能研究

1,2
3
1,2*
1,2
贾卫红 , 马立民 , 任嗣利 , 王金清 , 杨生荣 1
(1. 中国科学院兰州化学物理研究所 固体润滑国家重点实验室，甘肃 兰州 730000;
2. 中国科学院大学 材料与光电研究中心，北京 100049;
3. 江西理工大学 资源与环境工程学院，江西 赣州 341000)
摘 要: 以聚苯乙烯(PS)微球为致孔剂、介孔二氧化硅纳米管(MSNT)为填充剂来改性多孔聚酰亚胺(PI)，设计制备
了多孔PI/MSNT复合薄膜，并对其孔结构和形貌进行了表征；在此基础上，以液体石蜡油为存储介质制备了多孔
PI/MSNT复合含油润滑薄膜，系统考察了MSNT的添加对多孔PI薄膜的热稳定性、储油性能、力学性能和摩擦学性
能的影响. 结果表明：与单组分PI含油薄膜相比，MSNT的加入不仅改善了多孔PI基体的热稳定性和力学性能，而且
使得复合薄膜的储油性能和摩擦磨损性能均得到了显著提高，证实多孔PI/MSNT复合含油薄膜更适用于高载荷下
的摩擦工况.
关键词: 介孔二氧化硅纳米管; 复合薄膜; 多孔聚酰亚胺; 储油材料; 摩擦磨损
中图分类号: TH117.3 文献标志码: A 文章编号: 1004-0595(2020)04–0424–10

Tribological Behaviors of Porous Oil-containing PI/MSNT

Composite Lubricating Films

1,2 1,2 3 1,2* 1
JIA Weihong , MA Limin , REN Sili , WANG Jinqing , YANG Shengrong

(1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of
Chemical Physics, Chinese Academy of Sciences, Gansu Lanzhou 730000, China
2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of
Sciences, Beijing 100049, China
3. School of Resources and Environmental Engineering, Jiangxi University of Science and Technology,
Jiangxi Ganzhou 341000, China)
Abstract: The porous polyimide/ mesoporous silica nanotubes (PI/MSNT) composite films were fabricated by using
polystyrene microspheres (PS) as the pore-forming template while MSNT as the additive, whose porous structure and
morphology were subsequently characterized by various techniques. On this basis, the liquid paraffin oil was infused
into the porous structure of composite films via a vacuum wet impregnation method to prepare oil-containing PI/MSNT
composite films. The addition effects of MSNT on thermal stability, oil-storage capacity, mechanical and tribological
properties of porous PI/MSNT composite films were investigated in detail, and the results demonstrate that these
properties of porous PI were apparently improved upon the addition of MSNT. Specially, the tribological properties of
the oil-containing PI/MSNT composite films were better than those of the single-component oil-containing PI film,
demonstrating the composite film was more suitable for high-load friction conditions.
Key words: mesoporous silica nanotubes; porous polyimide; composite films; oil-containing materials; friction and wear

Received 25 November 2019, revised 20 January 2020, accepted 18 February 2020, available online 28 July 2020.
*Corresponding author. E-mail: jqwang@licp.cas.cn, Tel: +86-931-4968076.
The project was supported by the National Natural Science Foundation of China (51675514，51975562).
国家自然科学基金项目(51675514，51975562)资助.