Application of ZIF nanosheets for construction of epoxy composite coatings with enhanced corrosion protection performance

被引：6

作者：

Chen, Junnan ^{[1
,3
]}

Feng, Jinhua ^{[1
]}

Liang, Chengpeng ^{[1
]}

Sun, Li ^{[1
]}

Lin, Zhifeng ^{[1
]}

Li, Weihua ^{[1
,2
]}

Xue, Ming ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Chem Engn & Technol, Zhuhai 519082, Peoples R China

[2] North China Univ Water Resources & Elect Power, Sch Civil Engn & Commun, Zhengzhou 450046, Peoples R China

[3] Chinese Acad Sci, Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, Fac Mat Sci & Energy Engn, Shenzhen 518055, Peoples R China

来源：

PROGRESS IN ORGANIC COATINGS | 2023年 / 175卷

基金：

中国国家自然科学基金;

关键词：

ZIF nanosheet; ZIF-8; Anticorrosion; Epoxy coatings; Al alloy; MIXED-MATRIX MEMBRANES; GRAPHENE OXIDE; ANTICORROSIVE REINFORCEMENT; WATER; STABILITY; NANOPARTICLES; FABRICATION; ABSORPTION; REMOVAL; DESIGN;

D O I：

10.1016/j.porgcoat.2022.107335

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Searching for nanofillers that have prominent barrier performance, good compatibility with polymer matrix and little chance of triggering galvanic corrosion remains a challenge in organic coating industries. In this study, ZIF nanosheets (ZIF-NS) were readily fabricated at room temperature and then used as additives in epoxy matrix for anticorrosion purpose. EIS demonstrated that epoxy doping with 0.5 wt% ZIF-NS possessed a resistance modulus at 0.01 Hz of 2.88 x 10(9) Omega.cm(2) after immersion for 20 days, which was 2 orders of magnitude higher than that of neat epoxy. Owing to the restrained propagation of coating defects, as well as the tortuous diffusion channels for aggressive ions, ZIF nanosheets have showed great potential to form epoxy-based composite coatings on a large scale, and might pave the way for applications of other two-dimensional MOFs in industries.

引用

页数：10

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