具有改性 GO 环境友好涂层功能的先进聚(苯胺-氨基水杨酸)纳米纤维在钢铁表面的耐水性和长期活性防腐性能

IF 2.3 4区 材料科学 Q2 Chemistry
Meng Wang, Fengjuan Xiao, Longfei Kong, Guyu yin, Changbiao Ni, Xuefei Zhang, Cheng Qian, Lu Yan, Mengya Li, Jun Li, Kaixi Zhou
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引用次数: 0

摘要

利用与十六烷基三甲基溴化铵(CTAB)改性氧化石墨烯(CTGO)共价连接的聚(苯胺-氨基水杨酸)纳米纤维(PACA-f),提出了一种先进的碳钢长期活性腐蚀防护涂层。质子掺杂的 PACA-f 功能化 CTGO(PACA-f/CTGO)在水性环氧聚合物(WEP)涂料中表现出优异的疏水性和出色的耐水性,并且由于形成了有机-无机网络,与 WEP 具有更好的兼容性。PACA-f/CTGO 复合涂料具有自修复功能,在 Q235 钢材上显示出卓越的耐腐蚀性。分子动力学模拟(MD)研究了 PACA-f/CTGO 对钢的表面缓蚀作用,证实了 PACA-f/CTGO 在钢表面的化学吸附作用。PACA-f/CTGO优异的耐水性和防腐性归因于杂化涂层的高疏水性、腐蚀介质侵入后形成的智能钝化层以及CTGO的阻隔性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Advanced poly(aniline-aminosalicylic acid) nanofiber functionalized with modified GO environment friendly coatings on steel surfaces with water resistance and long-term active anticorrosion performance

An advanced long-term active corrosion protection coating for carbon steel was proposed using poly(aniline-aminosalicylic acid) nanofiber (PACA-f) covalently linked with cetyltrimethyl ammonium bromide (CTAB)-modified graphene oxide (CTGO). The proton-doped PACA-f functionalized CTGO (PACA-f/CTGO) exhibits excellent hydrophobicity and outstanding water resistance in waterborne epoxy polymer (WEP) coatings and better compatibility with WEP due to the formation of organic–inorganic networks. PACA-f/CTGO composite coating has a self-repairing function and shows superior corrosion resistance on Q235 steel. The surface-corrosion inhibition of PACA-f/CTGO on steel was investigated by molecular dynamics simulation(MD) which confirmed the chemical adsorption of the PACA-f/CTGO on the steel surface. The excellent water resistance and anticorrosion property of PACA-f/CTGO are ascribed to the high hydrophobicity of the hybrid coatings, the formation of intelligent passivation layer after the corrosive medium invading, and the barrier performance of CTGO.

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来源期刊
Journal of Coatings Technology and Research
Journal of Coatings Technology and Research CHEMISTRY, APPLIED-MATERIALS SCIENCE, COATINGS & FILMS
CiteScore
4.40
自引率
8.70%
发文量
0
期刊介绍: Journal of Coatings Technology and Research (JCTR) is a forum for the exchange of research, experience, knowledge and ideas among those with a professional interest in the science, technology and manufacture of functional, protective and decorative coatings including paints, inks and related coatings and their raw materials, and similar topics.
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