石墨的取向对聚酰亚胺摩擦性能的影响

doi:10.19491/j.issn.1001-9278.2020.05.004

中国塑料 ›› 2020, Vol. 34 ›› Issue (5): 21-25.DOI: 10.19491/j.issn.1001-9278.2020.05.004

石墨的取向对聚酰亚胺摩擦性能的影响

杨睿(), 苏正涛, 李红波, 赵文博

中国航发北京航空材料研究院，减振降噪材料及应用技术航空科技重点实验室，北京 100095

收稿日期:2019-11-25 出版日期:2020-05-26 发布日期:2020-05-26

Effect of Graphite Orientation on Tribological Properties of Polyimide

Rui YANG(), Zhengtao SU, Hongbo LI, Wenbo ZHAO

AECC Beijing Institute of Aeronautical Materials, Aviation Science and Technology Key Laboratory of Vibration Noise Reduction Materials and Application Technology, Beijing Institute of Aeronautical Materials, Beijing 100095, China

Received:2019-11-25 Online:2020-05-26 Published:2020-05-26
Contact: Rui YANG E-mail:rayounger@163.com

摘要/Abstract

摘要：

通过热模压成型工艺制备了聚酰亚胺（PI）/石墨（NG）复合材料，对其摩擦性能、断面及磨痕形貌进行了测试与表征。结果表明，NG在PI基体中沿着与成型压力垂直的方向取向；当载荷不变且滑动速度较低时，垂直于摩擦面的NG比平行于摩擦面的NG更能降低PI的摩擦因数；随着滑动速度的提高，这种情况发生转变，而提高载荷后，转变点向低速移动；对比摩擦性能与磨痕形貌的结果发现二者存在紧密的联系，磨痕的表面越光滑、粗糙度越低，摩擦因数与磨损率也越低。

关键词: 石墨, 取向, 聚酰亚胺, 摩擦性能

Abstract:

Polyimide (PI)/natural flake graphite (NG) composites were prepared by a hot?pressing technology, and their tribological properties as well as the morphologies of fracture and worn surfaces were investigated. The results indicated that NG was oriented in the direction perpendicular to the molding pressure in the PI matrix. When the load was constant and the sliding speed was low, the friction coefficient of the composites was reduced more significantly by the NG perpendicular to the friction surface than by that parallel to the friction surface. There was a reverse in this trend with an increase of sliding speed. Moreover, the transition point shifted to a low speed when the load increased. There was a tight relationship between the tribological properties and the morphologies of worn surfaces, and the smoother the worn surface, the lower were the friction coefficient and wear rate.

Key words: graphite, orientation, polyimide, tribological property

中图分类号:

TQ323.7

杨睿, 苏正涛, 李红波, 赵文博. 石墨的取向对聚酰亚胺摩擦性能的影响[J]. 中国塑料, 2020, 34(5): 21-25.

Rui YANG, Zhengtao SU, Hongbo LI, Wenbo ZHAO. Effect of Graphite Orientation on Tribological Properties of Polyimide[J]. China Plastics, 2020, 34(5): 21-25.

图/表 7

图1 PI的分子结构式

Fig.1 Structural formula of PI

图2 测试方向的示意图

Fig.2 Schematic diagram for the test directions

图3 PI/NG复合材料的SEM照片

Fig.3 SEM of PI/NG composites

图4 样品的XRD曲线

Fig.4 XRD curves of samples

图5 样品的摩擦因数随滑动速度和载荷的变化

Fig.5 Variation of coefficients of friction of samples with sliding speed and load

图6 样品的磨痕三维形貌图

Fig.6 3D morphologies of worn surfaces of samples

石墨的取向	滑动速度/m·s^?1	载荷/N	摩擦因数	磨损率/10^?6 mm³·N^?1·m^?1	表面粗糙度/μm
平行	0.2	100	0.45	2.11	0.47
平行	0.4	100	0.31	1.56	0.36
平行	0.6	100	0.23	1.32	0.25
平行	0.8	100	0.16	1.19	0.19
平行	1.0	100	0.14	0.93	0.11
垂直	0.2	100	0.36	1.86	0.40
垂直	0.4	100	0.25	1.37	0.34
垂直	0.6	100	0.21	1.29	0.30
垂直	0.8	100	0.18	1.21	0.25
垂直	1.0	100	0.16	1.09	0.23

表1 样品的摩擦因数、磨损率及磨痕表面粗糙度

Tab.1 Coefficients of friction, wear rates and surface roughness of samples

参考文献 14

1	SAMYN P, SCHOUKENS G, VERPOORT F, et al. Friction and Wear Mechanisms of Sintered and Thermoplastic Polyimides under Adhesive Sliding[J]. Macromolecular Materials & Engineering, 2007, 292(5):523⁃556.
2	GÖRLACH B, HOLWEGER W. Future Polyimide Coatings Used in High Loaded Bearings[J]. Industrial Lubrication & Tribology, 2005, 57(5):197⁃201.
3	SAMYN P, BAETS P D, SCHOUKENS G. Role of Internal Additives in the Friction and Wear of Carbon⁃Fiber⁃Reinforced Polyimide[J]. Journal of Applied Polymer Science, 2010, 116(2):1 146⁃1 156.
4	JIA Z, HAO C, YAN Y, et al. Effects of Nanoscale Expanded Graphite on the Wear and Frictional Behaviors of Polyimide⁃Based Composites[J]. Wear, 2015, 338:282⁃287.
5	王锐兰, 杨培娟, 查道鑫, 等. 热固性聚酰亚胺/石墨复合材料的性能[J]. 塑料, 2013, 42(4):90⁃93.
	WANG R L, YANG P J, CHA D X, et al. Properties of Thermosetting Polyimide/Graphite Composite[J]. Plastics, 2013, 42(4):90⁃93.
6	杨睿, 苏正涛. 石墨粒径对聚酰亚胺摩擦性能的影响[J]. 中国塑料, 2018, 32(4) :45⁃50.
	YANG R, SU Z T. Effect of the Particle Size of Graphite on the Tribological Property of Polyimide[J]. China Plastics, 2018, 32(4):45⁃50.
7	SHI J, PEI H, XIAO W, et al. Tribology Performances of Molybdenum Disulfide Reinforced Thermoplastic Polyimide under Dry and Water Lubrication Conditions[J]. Industrial Lubrication & Tribology, 2006, 58(4):195⁃201.
8	黄丽坚, 杨长城, 王晓东, 等. 聚酰亚胺复合材料与不同金属间干滑动时的摩擦学性能[J]. 机械工程材料, 2009, 33(10):57⁃59.
	HUANG L J, YANG C C, WANG X D, et al. Tribological Properties of Polyimide Composites Against Different Metal under Dry Sliding Friction Condition[J]. Materials for Mechanical Engineering, 2009, 33(10):57⁃59.
9	ZHANG X, PEI X, WANG Q. Friction and Wear Properties of Polyimide Matrix Composites Reinforced with Short Basalt Fibers[J]. Journal of Applied Polymer Science, 2010, 111(6):2 980⁃2 985.
10	张新瑞, 裴先强, 王廷梅, 等. 纳米氧化锌和石墨填充聚酰亚胺摩擦学性能研究[J]. 润滑与密封, 2014, 39(3):1⁃3.
	ZHANG X R, PEI X Q, WANG Y M, et al. Study on the Friction and Wear Properties of Nano ZnO and Graphite Filled Polyimide Composites[J]. Lubrication Engineering, 2014, 39(3):1⁃3.
11	BHUSHAN B. Principles and Applications of Tribology[M]. USA: John Wiley & Sons, Ltd, 2013:383⁃387.
12	ALADEKOMO J B, BRAGG R H. Structural Transformations Induced in Graphite by Grinding: Analysis of 002 X⁃ray Diffraction Line Profiles[J]. Carbon, 1990, 28(6):897⁃906.
13	ZHANG X, PEI X, WANG Q. Friction and Wear Studies of Polyimide Composites Filled with Short Carbon Fibers and Graphite and Micro SiO₂[J]. Materials & Design, 2009, 30(10):4 414⁃4 420.
14	黄丽坚, 朱鹏, 陈震霖, 等. 石墨改性热塑性聚酰亚胺复合材料的摩擦磨损性能[J]. 材料科学与工程学报, 2008, 26(2):268⁃272.
	HUANG L J, ZHU P, CHEN Z L, et al. Tribological Performances of Graphite Modified Thermoplastic Polyimide[J]. Journal of Materials Science & Engineering, 2008, 26(2):268⁃272.

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石墨的取向对聚酰亚胺摩擦性能的影响

Effect of Graphite Orientation on Tribological Properties of Polyimide

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