Self-adaptive epoxy protective coating filled with MoS2@PMMA core-shell hybrid and its excellent tribological and anticorrosive properties

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International Pub Date : 2025-05-05 DOI:10.1016/j.triboint.2025.110774

Huang Gao , Yawen Yang , Limin Ma , Weihong Jia , Jinyu Zhu , Yong Ding , Shengrong Yang , Jinqing Wang

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引用次数: 0

Abstract

Pure epoxy resin (EP) coating exhibits poor wear resistance and weak corrosion protection capability, resulting in short service life. In this work, MoS₂@polymethyl methacrylate (MoS₂@PMMA) core-shell hybrid was firstly synthesized by emulsion polymerization, which demonstrated stability in high humidity conditions attributing to reduced MoS₂ oxidation. As an additive, the tribological performances of MoS₂@PMMA/EP coating at different humidity and its anti-corrosive property were explored. Under high humidity, the MoS₂@PMMA/EP coating exhibited the lowest friction coefficient (0.36) compared with EP coating (0.49) and MoS₂/EP coating (0.56). Especially, the wear rate of the MoS₂@PMMA/EP reduced by 95.07 % and 93.22 % as to EP coating and MoS₂/EP coating, respectively. Furthermore, electrochemical tests showed the MoS₂@PMMA could enhanced the corrosion resistance of the EP matrix.

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填充MoS2@PMMA核壳杂化物的自适应环氧防护涂料及其优异的摩擦学和防腐性能

纯环氧树脂（EP）涂层耐磨性差，防腐能力弱，使用寿命短。本文首次通过乳液聚合合成了MoS2@polymethyl甲基丙烯酸酯（MoS2@PMMA）核壳杂化物，该杂化物在高湿条件下表现出稳定性，这是由于减少了MoS2的氧化。作为添加剂，对MoS2@PMMA/EP涂层在不同湿度下的摩擦学性能和防腐性能进行了研究。在高湿条件下，MoS2@PMMA/EP涂层的摩擦系数为0.36，低于EP涂层的0.49和MoS2/EP涂层的0.56。特别是，与EP涂层和MoS2/EP涂层相比，MoS2@PMMA/EP涂层的磨损率分别降低了95.07 %和93.22 %。此外，电化学试验表明MoS2@PMMA可以增强EP基体的耐蚀性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Tribology International 工程技术-工程：机械

CiteScore

10.10

自引率

16.10%

发文量

627

审稿时长

35 days

期刊介绍： Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International. Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.