基于聚苯胺<strong>/ZIFs</strong>填料的复合涂层的构建及防腐蚀性能研究

doi:10.11901/1005.3093.2026.144

材料研究学报

2026, Vol. 40

Issue (9): 685-696 DOI: 10.11901/1005.3093.2026.144

研究论文

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基于聚苯胺/ZIFs填料的复合涂层的构建及防腐蚀性能研究

徐淳, 廖中义, 张晗, 徐梦, 袁妍, 蒋莉(

)

苏州科技大学化学与生命科学学院苏州 215009

Fabrication and Anticorrosion Performance of the Composite Coating Based on PANI and ZIFs Fillers

XU Chun, LIAO Zhongyi, ZHANG Han, XU Meng, YUAN Yan, JIANG Li(

)

School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou 215009, China

引用本文:

徐淳, 廖中义, 张晗, 徐梦, 袁妍, 蒋莉. 基于聚苯胺/ZIFs填料的复合涂层的构建及防腐蚀性能研究[J]. 材料研究学报, 2026, 40(9): 685-696.
Chun XU, Zhongyi LIAO, Han ZHANG, Meng XU, Yan YUAN, Li JIANG. Fabrication and Anticorrosion Performance of the Composite Coating Based on PANI and ZIFs Fillers[J]. Chinese Journal of Materials Research, 2026, 40(9): 685-696.

全文: PDF(17069 KB) HTML

摘要:

构建了基于沸石咪唑骨架ZIF-8、氧化石墨烯(GO)与1,10-菲罗啉(Phen)缓蚀剂的复合纳米填料ZIF-8/GO/Phen，并将其添加至环氧丙烯酸树脂(EA)中制备ZIF-8/GO/Phen-EA防腐涂层。并引入聚苯胺(PANI)构建了具有多重协同防护功能的双层涂层体系(PANI/ZIF-8/GO/Phen-EA)，可实现物理阻隔、阳极保护与缓蚀剂释放于一体。通过Fourier变换红外光谱(FT-IR)、X射线光电子能谱(XPS)及扫描电子显微镜(SEM)等手段表征了所制备材料的成分、结构与形貌，并以0.1 mol/L盐酸溶液模拟酸性腐蚀环境，利用电化学手段系统评价了涂层的防腐性能与服役稳定性。结果表明，ZIF-8/GO/Phen的引入显著提升了涂层的致密性，赋予了涂层主动防护功能，强化了其对腐蚀介质阻隔作用；在填料含量为1.5%时，ZIF-8/GO/Phen-EA内层涂层耐蚀性最佳，引入PANI外层后，复合涂层的自腐蚀电流密度进一步降低，其阻抗模量显著提高，并展现出良好的自修复能力，可有效抑制酸性环境中不锈钢的腐蚀进程。

关键词 ：材料表面与界面, ZIF-8, 氧化石墨烯, 缓蚀剂, 聚苯胺, 主动防护

Abstract：

To enhance the corrosion resistance of stainless steel, this study developed a composite nanofiller, ZIF-8/GO/Phen, composed of a zeolite imidazolate framework (ZIF-8), graphene oxide (GO), and the corrosion inhibitor 1,10-phenanthroline (Phen). This filler was incorporated into an epoxy acrylate resin (EA) matrix to fabricate a ZIF-8/GO/Phen-EA anti-corrosion coating. Furthermore, polyaniline (PANI) was subsequently electrodeposited to construct a dual-layer coating system (PANI/ZIF-8/GO/Phen-EA) with synergistic protective functions, including physical barrier, anodic protection, and inhibitor release capabilities. The composition, structure, and morphology of the synthesized materials were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). The acidic corrosive environment was simulated using 0.1 mol/L hydrochloric acid solution, and the anticorrosion performance and service stability of the coating were systematically assessed using electrochemical techniques. The results indicated that the incorporation of ZIF-8/GO/Phen markedly improved the compactness of the coating, imparted active protection functionality, and strengthened its barrier effect against corrosive media. At a filler content of 1.5%, the ZIF-8/GO/Phen-EA inner-layer coating exhibited optimal corrosion resistance. After the introduction of the PANI outer layer, the self-corrosion current density of the composite coating further decreased, accompanied by a significant increase in impedance modulus. This resulting PANI/ZIF-8/GO/Phen-EA composite coating demonstrated good self-healing capability, effectively inhibiting the corrosion process of stainless steel in acidic environments.

Key words： surface and interface in the materials ZIF-8 graphene oxide Inhibitor PANI active protection

收稿日期: 2026-03-18

ZTFLH:

TG174.4

基金资助:国家自然科学基金(22202142)

通讯作者: 蒋莉，副教授，jl@mail.usts.edu.cn，研究方向为功能涂层材料及金属腐蚀防护

Corresponding author: JIANG Li, Tel: 15150517328, E-mail: jl@mail.usts.edu.cn

作者简介: 徐淳，男，2001年生，硕士生

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https://www.cjmr.org/CN/10.11901/1005.3093.2026.144 或 https://www.cjmr.org/CN/Y2026/V40/I9/685

图1 ZIF-8体系纳米粒子与Phen的红外光谱图

图2 ZIF-8/GO/Phen纳米粒子的XPS图谱

图3 ZIF-8/GO和ZIF-8/GO/Phen的SEM图

图4 PANI/ZIF-8/GO/Phen-EA和ZIF-8/GO/Phen-EA涂层的SEM图

图5 不同配比ZIF-8/GO/Phen-EA复合涂层的Nyquist图

图6 1.5%ZIF-8/GO/Phen-EA复合涂层长期服役的Nyquist图

图7 ZIF-8/GO/Phen-EA及PANI/ZIF-8/GO/Phen-EA涂层体系的拟合电路图

表1 1.5%ZIF-8/GO/Phen-EA涂层长期服役期间的EIS拟合参数

图8 1.5%PANI/ZIF-8/GO/Phen-EA复合涂层长期服役的Nyquist图

表2 1.5%PANI/ZIF-8/GO/Phen-EA复合涂层长期服役期间的EIS拟合参数

图9 PANI/ZIF-8/GO/Phen-EA复合涂层和四种不同配比ZIF-8/GO/Phen-EA涂层的动电位极化曲线

表3 不同配比ZIF-8/GO/Phen-EA涂层和PANI/ZIF-8/GO/Phen-EA复合涂层的动电位极化曲线拟合数据

图10 长期服役后PANI/ZIF-8/GO/Phen-EA和ZIF-8/GO/Phen-EA涂层的SEM图像

图11 划伤的1.5%ZIF-8/GO/Phen-EA复合涂层和1.5%PANI/ZIF-8/GO/Phen-EA涂层的Nyquist图、Bode图和开路电位随时间的变化趋势

表4 划伤的1.5%ZIF-8/GO/Phen-EA涂层服役一周的EIS拟合参数

表5 划伤的PANI/ZIF-8/GO/Phen-EA复合涂层服役一周的EIS拟合参数

图12 PANI/ZIF-8/GO/Phen-EA防腐涂层的防腐机理示意图

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