期刊
COATINGS
卷 9, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/coatings9030154
关键词
basalt flake; nano-SiO2 microspheres; coating; chemical durability; modification
资金
- National Science Foundation of China (NSFC) [51873032]
- Jiangsu Province key research and development plan [BE2016138]
- Chinese Ministry of Science and Technology [2013G111009]
Basalt flakes (BFs) have been widely used in recent years as a novel anticorrosion material in the marine industry to prevent the corrosion of metal substrates. In this study, BFs were modified with 1-7 parts per thousand nano-SiO2 microspheres, and a modified BF epoxy coating was successfully prepared. Experimental results showed that the BF epoxy resin coating modified with 3 parts per thousand nano-SiO2 microspheres exhibited excellent chemical durability (surface weight loss rate of 2.2% in the alkali solution and only 1.1% in the acid solution at room temperature after 480 h), low water infiltration (water absorption of 0.72% after 480 h), and good mechanical performance (tensile strength of approximately 33.4 MPa). This study proves the feasibility of using nano-SiO2 microspheres to modify BF epoxy resin coating and enhance the chemical durability and mechanical properties provided by the coating.
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