Investigating the effect of polytetrafluoroethylene on the tribological properties and corrosion resistance of epoxy/hydroxylated hexagonal boron nitride composite coatings

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2023-01-01 DOI:10.1016/j.corsci.2022.110820

Guihua Li , Lei Chen , Yulong An , Meizhen Gao , Huidi Zhou , Jianmin Chen

引用次数: 12

Abstract

The work investigated the effect of polytetrafluoroethylene (PTFE) on the tribological properties and corrosion resistance of epoxy/hydroxylated hexagonal boron nitride (EP/OH-h-BN) composite coatings. Results showed that the average friction coefficient and wear rate of the EP/OH-h-BN/PTFE composite coating with the mass ratio of PTFE to EP of 0.8 decreased by 68.4% and 60.3% compared to those of EP/OH-h-BN coating, respectively. Moreover, the coating still exhibited the largest |Z|_0.01 Hz value of 2.28 × 10¹¹ Ω·cm² after 80 days of immersion in 3.5 wt% NaCl solution, which was about 5 times of EP/OH-h-BN coating. The enhancement of coating properties was attributed to the synergistic strengthening effect of OH-h-BN and PTFE.

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研究了聚四氟乙烯对环氧/羟基化六方氮化硼复合涂层摩擦学性能和耐蚀性能的影响

研究了聚四氟乙烯(PTFE)对环氧/羟基化六方氮化硼(EP/OH-h-BN)复合涂层摩擦学性能和耐腐蚀性的影响。结果表明，PTFE与EP质量比为0.8时，EP/OH-h-BN/PTFE复合涂层的平均摩擦系数和磨损率分别比EP/OH-h-BN涂层降低了68.4%和60.3%。在3.5 wt% NaCl溶液中浸泡80 d后，涂层仍表现出最大的|Z|0.01 Hz值为2.28 × 1011 Ω·cm2，约为EP/OH-h-BN涂层的5倍。OH-h-BN与PTFE的协同强化作用是镀层性能增强的主要原因。

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

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.