超支化聚硅氧烷与MoS2/h-BN异质结粒子协同增强的低温固化环氧自润滑防腐涂料

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-04-06 DOI:10.1016/j.compositesa.2025.108920

Kaiming Yang , Feifei Wang , Bingrui Shi , Zhenlong Zhang , Weixu Feng , Guoquan Qi , Hongxia Yan

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引用次数: 0

摘要

开发低温固化高性能自润滑防腐涂料是解决由磨损和腐蚀引起的能源浪费和环境问题的一个挑战。本文采用廉价、高效、无溶剂的超声辅助球磨法制备了二硫化钼/六方氮化硼（MoS2/h-BN）异质结颗粒，并将其用作固体润滑剂和腐蚀介质屏障。同时，利用末端环氧基团的超支化聚硅氧烷（HSiEp）提高了颗粒的分散性和颗粒与环氧粘合剂之间的界面结合强度。与纯环氧涂层相比，45.0 wt% MoS2/h-BN/6.0 wt% HSiEp/EP涂层的平均摩擦系数从0.38降低到0.19，涂层阻力R1从9.98 × 105 Ω·cm2增加到3.33 × 106 Ω·cm2。这主要是由于HSiEp和MoS2/h-BN异质结粒子的“软硬”协同作用和高势垒协同作用。该研究为开发低能耗高性能环氧自润滑防腐涂料提供了理论基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Low-temperature curing epoxy self-lubricating anticorrosion coatings synergistically enhanced by hyperbranched polysiloxanes and MoS2/h-BN heterojunction particles

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Low-temperature curing epoxy self-lubricating anticorrosion coatings synergistically enhanced by hyperbranched polysiloxanes and MoS2/h-BN heterojunction particles

Developing low-temperature curing and high-performance self-lubricating anticorrosion coatings is a challenge for solving energy waste and environmental problems caused by wear and corrosion. Herein, molybdenum disulfide/hexagonal boron nitride (MoS₂/h-BN) heterojunction particles, prepared by an inexpensive, efficient and solvent-free ultrasonic-assisted ball milling method, are used as solid lubricants and corrosive media barrier. Meanwhile, hyperbranched polysiloxane with terminal epoxy groups (HSiEp) is utilized to improve both the dispersion of the particles and the interfacial bonding strength between the particles and the epoxy binder. Compared with neat epoxy coating, the average friction coefficient of 45.0 wt% MoS₂/h-BN/6.0 wt% HSiEp/EP coating decreases from 0.38 to 0.19, while the coating resistance (R₁) increases from 9.98 × 10⁵ Ω·cm² to 3.33 × 10⁶ Ω·cm². This is mainly attributed to the “soft-hard” particle synergy and the high barrier synergy of HSiEp and MoS₂/h-BN heterojunction particles. This study provides a theoretical foundation for the development of low-energy-consumption and high-performance epoxy self-lubricating anticorrosion coatings.

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来源期刊

Composites Part A: Applied Science and Manufacturing 工程技术-材料科学：复合

CiteScore

15.20

自引率

5.70%

发文量

492

审稿时长

30 days

期刊介绍： Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.