Graphene zinc oxide polyester resin coating and preparation method thereof

Abstract

The invention provides a graphene zinc oxide polyester resin coating and a preparation method thereof. Zinc is added to the formula in order to realize anticorrosion or application to ship coatings, and can form a compact zinc-iron compound, so the further infiltration speed of a corrosion medium is reduced, an antirust effect is effectively realized, and the coating with stable properties is obtained; and a certain amount of PVC is added as a stabilizer. A measurement result of the thickness of a coating layer formed after the prepared coating is sprayed shows that the thickness is uniform, and the precision reaches a + / -1 [mu]m level and is far better than a reported precision of + / -3 [mu]m; and additionally, the hardness index is better than that of coatings containing inorganic fibers, increases to about 2.3 times that of like coatings and reaches 6-8.2 H (GB / T 6739-1996 Pencil Scratching Value), the self corrosion potential reaches -345 mV and is better than that of existing coatings, and the corrosion current reaches 0.030 [mu]A / cm<2> and is better than that of existing coatings.

Description

technical field [0001] The invention belongs to the field of paint preparation, and in particular relates to a graphene zinc oxide polyester resin paint and a preparation method thereof. The polyester resin paint containing graphene and zinc oxide can meet the requirements of freshwater and seawater navigation ship outer layer paints, and also It can be used for special coating anti-corrosion requirements of equipment in industry and other fields. Background technique [0002] With the long-term catastrophic overexploitation of land resources, land resources are increasingly scarce, and people begin to seek available resources like the oceans that account for 70% of the earth's surface. To find and develop abundant marine natural resources, the first problem we face is the corrosion of ships in ocean navigation. The equipment and facilities of nautical ships have been in the working environment of alternating dry and wet oxygen-enriched salt spray and high ultraviolet radia...

AI Technical Summary

Problems solved by technology

[0004] However, graphene technology appeared relatively late, various application research has just started, and industrialized products that can be practically applied are rare

At present, in the practical application of graphene polyester coatings, there are: ①The uneven thickness of the coating layer leads to poor coating effect; ②The surface hardness of the coating layer is not enough; ③The self-corrosion potential of the coating layer is low; ④The self-corrosion current Higher density affects the performance of practical applications; ⑤ No problems such as systematic research on coating preparation process have been seen

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