湿热对PI/MoS2涂层性能的影响

宇航材料工艺 , 2015, 45(1): 49-52. doi: 10.3969/j.issn.1007-2330.2015.01.013

湿热对PI/MoS2涂层性能的影响

霍丽霞 ^1, , 周晖 ^2, , 桑瑞鹏 ^3, , 张凯锋 ^4, , 蒋钊 ^5,

1.兰州空间技术物理研究所,真空技术与物理重点实验室,兰州730000

2.兰州空间技术物理研究所,真空技术与物理重点实验室,兰州730000

3.兰州空间技术物理研究所,真空技术与物理重点实验室,兰州730000

4.兰州空间技术物理研究所,真空技术与物理重点实验室,兰州730000

5.兰州空间技术物理研究所,真空技术与物理重点实验室,兰州730000

关键词：湿热老化 , 聚酰亚胺 , 润滑涂层 , 摩擦学性能 , 红外光谱

Hygrothermal Effects on PI/MoS2 Disulfide Lubrication Coating

Keywords： Hygrothermal treatment , Polyimide , Lubrication coating , Tribological properties , FTIR

对钛合金表面的PI/MoS2涂层进行了湿热老化试验,在70℃、98％ RH条件下存储长达27 d.采用衰减全反射红外光谱和透射红外光谱分别对涂层表面及涂层进行分析测试,利用X射线光电子能谱对涂层表面成分进行分析.通过球盘摩擦试验机考察了湿热老化对润滑涂层的真空及大气摩擦性能的影响.采用拉脱法测试了湿热老化前后涂层附着力.结果表明,湿热会导致PL/MoS2润滑涂层表面的胶黏剂聚酰亚胺被水解侵蚀,膜层表面深度在50 nm以内的部分MoS2被氧化.湿热试验前后涂层的真空耐磨寿命降低13％,大气耐磨寿命降低16％;真空摩擦因数略有增加且波动增大,而大气摩擦因数显著增加,涂层附着强度也略显降低.

参考文献

[1]	Robert L F .Tribology Need for Future Space and Aeronautical Systems[.NASA TM,104525[R].,1991.
[2]	Kazuhisa M .Solid Lubricants and Coatings for Extreme Environments:State-of-the-Art Survey[R].NASA TM,2007.
[3]	Robert L F .Fundamental Aspects of Polyimide Dry Film and Composite Lubricant-A Review[NASA TM,82968][R].,1982.
[4]	Robert D A.Hydrolytic degradation of kapton film[J].Journal of Plastic Film and Sheeting,1985(1):50-59.
[5]	Hu D;Chen H .Humidity Effect on Polyimide Film Adhesion[J].Journal of Materials Science,1992,27:5262-5268.
[6]	Steven M;Craig H;Michael P .Environmental aging and deadhesion of polyimide dielectric films[J].Journal of Electrionic Packing,2004,126:390-398.
[7]	Somboonsub, B;Thongyai, S;Praserthdam, P .Dielectric Properties and Solubility of Multilayer Hyperbranched Polyimide/Polyhedral Oligomeric Silsesquioxane Nanocomposites[J].Journal of Applied Polymer Science,2009(5):3292-3302.
[8]	Liu, B.;Pei, X.;Wang, Q.;Sun, X.;Wang, T. .Structural and tribological properties of polyimide/Al _2O _3/SiO _2 composites in atomic oxygen environment[J].Journal of Macromolecular Science. Physics,2012(1/3):224-234.
[9]	Nora G;Eda Y;Thomas G et al.XPS and NEXAFS studies of aliphatic and aromtic amine species on functionalized surfaces[J].Surf Sci,2009,603:2849-2860.
[10]	Mei-Hui Tsai;Chi-Jung Chang;Pei-Jyun Chen;Cheng-Jung Ko .Preparation and characteristics of poly(amide-imide)/titania nanocomposite thin films[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2008(16):5654-5658.
[11]	Pieter S;Gustaaf S;Francis V .Thermoplastic polyimides under adhesive sliding[J].Macromol.Mater.,Eng,2007,292:523-556.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网

湿热对PI/MoS2涂层性能的影响

Hygrothermal Effects on PI/MoS2 Disulfide Lubrication Coating

参考文献