The construction of nanosilica/PU composite coating for improvement of scratch resistance

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings Pub Date : 2025-01-22 DOI:10.1016/j.porgcoat.2025.109083

Shengjie Yang, Zhengkang Peng, Aiping Zhu

引用次数: 0

Abstract

Polyurethane (PU) varnish is widely used in car gloss coating, however, its scratch resistance still has great challenges due to the friction from particles like dust, sand, or hard materials. In this study, to obtain excellent scratch resistance property, the multiple fatty acids esterificated nanosilica (MA-SiO₂) has been innovatively selected to construct the nanosilica/PU composite coating. The results demonstrate that the monodispersity and good interfacial interaction are the key factors affecting the performance of the composite coating revealed by surface roughness, fracture surface morphology, friction coefficient, and elastic modulus measurements. The nanosilica/PU composite coating with MA-SiO₂ (3 ‰) filled presents best wear resistant and scratch resistance. The possible mechanism is the formation of unique nano-rough surface structure morphology and good interfacial adhesion.

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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.