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| Experimental study on the frosting performance of graphene / epoxy composite paint |
| ZHANG Liu， ZHANG Bing |
| School of civil Engineering, Tangshan College, Tangshan 063000, China |
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Abstract In this paper, graphene powder was added to epoxy resin coating to prepare graphene / epoxy resin composite coating. A cold surface frosting test-bed was set up to study the condensation and frosting on the surface of graphene composite coating, and compared with the surface of epoxy resin. The results show that in condensation experiment, the surface water bead spacing of graphene composite coating is large, so it is not suitable to be connected into pieces. In the frosting experiment, under the same ambient temperature and cold liquid temperature, the growth of frost crystals of graphene composite coating is slow, sparse and the frost suppression effect is good. When the coolant temperature is reduced to -10 ℃, the frost crystal on the surface of the graphene composite coating accelerate and concentrate. When the ambient temperature is reduced to 5 ℃, the thickness of the surface of the graphene composite coating was about 1/4 of the initial condition. After the salt spray resistance test, the addition of graphene can significantly improve the corrosion resistance of the epoxy coating.
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Received: 02 January 2020
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2020, Vol. 30 
