聚多巴胺改性硅氧烷增强水性环氧树脂的耐蚀耐磨性能

IF 5.6 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2025-09-01 DOI:10.1016/j.ceramint.2025.06.257

Songlin He , Chao Zhang , Changhua Li , Yongxin Hu , Chuan Fu , Chuanfang Zhang , Xinbo Xu , Haichao Zhang , Yi He

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引用次数: 0

摘要

硅氧烷（Sic）片作为一种新型二维硅基材料，由于其优异的电化学和催化性能，在电池、超级电容器和电催化领域显示出巨大的应用前景，但在金属涂层应用方面的研究空白较大，特别是在有机体系中增强磨损和电化学耐腐蚀性方面缺乏系统的研究，亟待填补。因此，在整个研究过程中，通过基于拓扑化学的合成方法制备了Sic纳米片，并将其掺入环氧树脂复合材料中，并讨论了二维Sic片对复合材料耐腐蚀和耐磨损双重性能的影响。采用乳液诱导和自聚合的方法在Sic表面生长聚多巴胺（PDA），提高了Sic复合涂层的耐摩擦和耐腐蚀性能，促进了Sic与树脂基体之间更强的界面结合。通过电化学阻抗谱（EIS）、手工划痕测试和摩擦学分析对复合涂层的耐腐蚀和耐磨性进行了评价。在对比评价中，含有1.0 wt%Sic@PDA的复合涂层在3.5 wt%氯化钠溶液中暴露60天后，阻抗模量在0.01 Hz频率下上升了3个数量级，同时腐蚀电流密度下降了3个数量级，表明具有优异的耐腐蚀性。与纯EP涂层相比，磨损率显著降低66.6%，耐磨性增强。本研究提出了一种基于拓扑合成和有机改性的Sic材料功能化协同策略，为金属基复合材料涂层在恶劣环境下（如航空航天、海洋）的双重耐蚀耐磨增强提供了新的思路。这项研究有望促进二维硅基材料从基础研究向工业化耐磨和耐腐蚀涂层应用的过渡。

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Enhancement of corrosion resistance and wear resistance of waterborne epoxy resin by polydopamine-modified siloxene

As a new 2D silicon-based material, siloxene (Sic) sheets show great application prospects in battery, supercapacitor, and electrocatalytic fields due to excellent electrochemical and catalytic properties, but have significant research gaps in metal coating applications, especially lack of systematic research on enhancing wear and electrochemical corrosion resistance in organic systems, which urgently needs filling. Therefore, throughout the study, Sic nanosheets were fabricated through topological chemistry-based synthesis and incorporated into epoxy (EP) resin composites, and the influence of 2D Sic sheet on dual resistance of composites to corrosion and abrasion was discussed. Emulsion-induced and self-polymerization methods were used to grow polydopamine (PDA) upon the outer exterior of Sic, which improved the friction and corrosion resistance of Sic composite coatings and promoted stronger interfacial bonding between Sic and the resin matrix. The corrosion and abrasion resistance properties of the composite coatings were evaluated via electrochemical impedance spectroscopy (EIS), manual scratch testing, and tribological analysis. In a comparative evaluation, composite coatings containing 1.0 wt%Sic@PDA after 60 days of exposure to 3.5 wt% sodium chloride solution, the impedance modulus at a frequency of 0.01 Hz, the value rose by three orders of magnitude, concurrent with a three-order decrease in corrosion current density, indicating excellent corrosion resistance. The wear rate was significantly decreased by 66.6 % compared to pure EP coating, indicating enhanced wear resistance. This study presents a synergistic strategy of topological synthesis and organic modification for Sic materials functionalization, offering new thinking for metal matrix composite coatings in harsh environments (e.g., aerospace, marine) via dual corrosion-wear resistance enhancement. This study is expected to facilitate the transition of 2D silicon-based materials from basic research to industrialized wear- and corrosion-resistant coating applications.

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.