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Coatings 2019, 9(3), 154; https://doi.org/10.3390/coatings9030154

Study of a Nano-SiO2 Microsphere-Modified Basalt Flake Epoxy Resin Coating

1
State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, Donghua University, Shanghai 201620, China
2
Engineering Research Center of Advanced Glass Manufacturing Technology, Ministry of Education, Shanghai 201620, China
*
Authors to whom correspondence should be addressed.
Received: 7 February 2019 / Revised: 21 February 2019 / Accepted: 25 February 2019 / Published: 27 February 2019
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Abstract

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‰ nano-SiO2 microspheres, and a modified BF epoxy coating was successfully prepared. Experimental results showed that the BF epoxy resin coating modified with 3‰ 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. View Full-Text
Keywords: basalt flake; nano-SiO2 microspheres; coating; chemical durability; modification basalt flake; nano-SiO2 microspheres; coating; chemical durability; modification
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Luo, L.; Ma, Q.; Wang, Q.; Ding, L.; Gong, Z.; Jiang, W. Study of a Nano-SiO2 Microsphere-Modified Basalt Flake Epoxy Resin Coating. Coatings 2019, 9, 154.

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