Investigating the effects of g-C3N4/Graphene oxide nanohybrids on corrosion resistance of waterborne epoxy coatings

被引：60
作者：
Zhou, Ziyang [1 ,2 ,3 ]
Ji, Xiaohong [1 ,3 ,4 ]
Pourhashem, Sepideh [1 ,3 ,4 ]
Duan, Jizhou [1 ,3 ,4 ]
Hou, Baorong [1 ,3 ,4 ]
机构：
[1] Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China
[2] Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing 100049, Peoples R China
[3] Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Peoples R China
[4] Chinese Acad Sci, Ctr Ocean Megasci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2021年 / 149卷
关键词：
Layered-structures; Nanocomposites; Polymer-matrix composites; Corrosion; ONE-STEP SYNTHESIS; MECHANICAL-PROPERTIES; THERMAL-CONDUCTIVITY; NANOCOMPOSITE FILMS; G-C3N4; NANOSHEETS; GRAPHENE; COMPOSITES; PROTECTION; PERFORMANCE; NANOFILLER;
D O I：
10.1016/j.compositesa.2021.106568
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Two dimensional nanomaterials including graphene oxide (GO), graphitic carbon nitride (CN), and their nanohybrids (GO@CN) are used for enhancing the corrosion resistance of waterborne epoxy coatings. The nanomaterials functionalized with 3-aminopropyltriethoxysilane are loaded in the waterborne epoxy matrix by solution mixing method through probe-sonication and mechanical mixing. The corrosion resistance of the pure waterborne epoxy (PE) and the nanocomposite coatings in 3.5 wt% NaCl solution is evaluated by electrochemical impedance spectroscopy and salt spray test; revealing that the epoxy coating loaded with 0.1 wt% silane functionalized GO@CN nanohybrid has the highest chemical stability and corrosion resistance, due to the welldistribution of the nanohybrid in the polymer matrix. This research exhibits the importance of developing nanocomposite coatings based on two dimensional nanohybrids to overcome the shortcomings of the nanomaterials and to simultaneously utilize from their advantages in a coating system.
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页数：10
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