Achieving scratch resistance and flame retardancy in transparent polycarbonate through P/N/Si synergistic coating

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings Pub Date : 2025-03-25 DOI:10.1016/j.porgcoat.2025.109247

Zefan Feng , Wei Cai , Jing Gao , Guangyong Jiang , Liangyuan Qi , Jiajun Li , Yuan Hu , Fukai Chu , Weiyi Xing

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引用次数: 0

Abstract

Transparent polycarbonate(PC) has attracted more and more attention due to its excellent properties, but it is still a challenge to give PC scratch resistance and flame retardancy while maintaining transparency. Herein, a transparent flame-retardant coating was successfully applied to PC using a phosphorus-containing organic amine curing agent (PETA), combined with epoxyoligosiloxane (AEOS) and epoxy resin (TGDDM). All samples showed high transparency and good scratch resistance, as well as good flame retardancy and fire resistance. The PEOS-TG-3 coating achieved a pencil hardness of 4H and an adhesion rating of 4B, demonstrating enhanced scratch resistance. The PHRR and THR of PC/PEOS-TG-3 was 21.4 % and 30.1 % lower than that of pure PC. Due to its simple synthesis method and effective char expansion, this P/N/Si synergistic flame-retardant coating holds significant potential for applications in flame-retardant protection for polycarbonate. This work demonstrates that the P/N/Si synergistic system not only guarantees the scratch resistance of PC sheets but also improves its flame retardancy while ensuring that the transparency is almost unaffected. This provides a feasible solution for the design and preparation of PC coatings with low cost, high flame retardancy and scratch resistance.

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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.