Experimental study on the performance of high anti-wear nano-graphene modified polyamide-imide composite coatings

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings Pub Date : 2025-03-09 DOI:10.1016/j.porgcoat.2025.109201

Tao Chu , Xiaohui Huang , Guibao Tao , Junjie Zhu , Taiming Luo , Hao Yi , Haiyang Yang , Anmin Huang , Chaoyi Peng , Jun Yang , Huajun Cao

引用次数: 0

Abstract

This study investigates the mechanical and tribological performance of nano-graphene (NG) modified polyamide-imide (PAI) composite coatings under different lubrication conditions. PAI/NG coatings with 0, 1, 3, and 5 wt% NG were prepared on 45# steel. Experimental results show that the 3 wt% NG coating achieves optimal performance, with a 59.14 % reduction in surface roughness, 81.13 % increase in adhesion, 31.72 % lower friction, and 99.25 % reduction in wear rate compared to unmodified PAI. Excessive NG content negatively impacts performance due to poor dispersion. The composite coatings also exhibit a significant friction-reducing effect in lubricated conditions, with a 30.65 % lower friction coefficient in engine oil. These findings demonstrate the potential of NG-modified PAI coatings for enhancing wear resistance in mechanical components.

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来源期刊

Progress in Organic Coatings 工程技术-材料科学：膜

CiteScore

11.40

自引率

15.20%

发文量

577

审稿时长

48 days

期刊介绍： The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as: • Chemical, physical and technological properties of organic coatings and related materials • Problems and methods of preparation, manufacture and application of these materials • Performance, testing and analysis.