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Study on preparation process parameters and tribological properties of porous PI materials

Yanhong Yan (College of Mechanical Engineering, Yanshan University, Qinhuangdao, China and Aviation Key Laboratory of Science and Technology on Generic Technology of Self-Lubricating Spherical Plain Bearing of Yanshan University, Qinhuangdao, China)
Chengwen Yang (College of Mechanical Engineering, Yanshan University, Qinhuangdao, China and Aviation Key Laboratory of Science and Technology on Generic Technology of Self-Lubricating Spherical Plain Bearing of Yanshan University, Qinhuangdao, China)
Yanfei Zhou (College of Mechanical Engineering, Yanshan University, Qinhuangdao, China and Aviation Key Laboratory of Science and Technology on Generic Technology of Self-Lubricating Spherical Plain Bearing of Yanshan University, Qinhuangdao, China)
Wenbin Dong (College of Mechanical Engineering, Yanshan University, Qinhuangdao, China and Aviation Key Laboratory of Science and Technology on Generic Technology of Self-Lubricating Spherical Plain Bearing of Yanshan University, Qinhuangdao, China)
Pengjuan Yan (College of Mechanical Engineering, Yanshan University, Qinhuangdao, China and Aviation Key Laboratory of Science and Technology on Generic Technology of Self-Lubricating Spherical Plain Bearing of Yanshan University, Qinhuangdao, China)
Zhining Jia (Hebei Meter and Instrument Engineering Technology Research Center, Hebei Petroleum University of Technology, Chengde, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 18 January 2022

Issue publication date: 2 March 2022

181

Abstract

Purpose

Previously, the effect of pore-forming agents on the properties of pore size and morphology was studied. In this paper, we determine the optimal combination of parameters by tensile strength and perform tribological tests with optimal combination of parameters.

Design/methodology/approach

In this paper, porous polyimide (PI) materials were fabricated using vacuum hot molding technology. The orthogonal experiment was designed to test the mechanical properties of porous PI materials with the process parameters and the content of pore-forming agent as the changing factors. The porous PI oil-bearing materials were obtained by vacuum immersion, and tribological test were carried out.

Findings

The results showed that porous PI oil-bearing materials are suitable for low-speed and low-load conditions. The actual value of the friction coefficient basically match with the theoretical value of the regression analysis, and the errors of the friction coefficient are within 10% and 3%, respectively, which proves that the method used in the study is feasible for the friction coefficient prediction.

Originality/value

In this paper, we have produced a new porous oil-bearing material with good tribological properties. This study can effectively predict the friction coefficient of PI porous material.

Keywords

Citation

Yan, Y., Yang, C., Zhou, Y., Dong, W., Yan, P. and Jia, Z. (2022), "Study on preparation process parameters and tribological properties of porous PI materials", Industrial Lubrication and Tribology, Vol. 74 No. 2, pp. 205-210. https://doi.org/10.1108/ILT-10-2021-0403

Publisher

:

Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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