Study on preparation process parameters and tribological properties of porous PI materials
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 18 January 2022
Issue publication date: 2 March 2022
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
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