Surface treatment method of glass flakes for flake resin paint and flake resin paint

Abstract

The invention provides a method for the surface functionalization treatment of a glass flake. The method adopts two silane coupling agents to carry out dual modification treatment on the surface of the glass flake so that the surface of the glass flake simultaneously contains a hydrophilic group and a hydrophobic group, wherein one of the silane coupling agents is a short-carbon chain silane coupling agent which contains a reactive group, and the other one of the silane coupling agents is a silane coupling agent with long-carbon chain hydrophobic property. Experiments prove that on the one hand, the method provided by the invention enlarges the binding force between the glass flake and a resin base body and enhances the compactness of a flake resin coating, and on the other hand, the method provided by the invention has capillary hydrophobic effect by forming a gap between mutually superposed glass flakes, thereby effectively preventing the permeation of water molecules. Thus, the flake resin coating formed by the glass flake modified by utilizing the method is greatly reduced in water absorption and effectively enhanced in anti-corrosion property and permeation resistant property and has good application prospect in the field of heavy anti-corrosion, such as the anti-corrosion of a chimney with a flue gas desulfurization device, the anti-corrosion of a petrochemical industrial pipeline, the anti-corrosion of ocean, and the like.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion coatings, and in particular relates to a surface treatment method for glass flakes used in flake resin coatings and a scale resin coating prepared by using the glass flakes. Background technique [0002] my country is a country whose energy structure is dominated by coal combustion, and air pollution is mainly caused by soot, dust, sulfide, nitrogen oxides and other pollution. As the world pays more and more attention to environmental protection, as early as the 1980s, many countries in Europe have mandated the use of desulfurization devices (FGD) in combustion power plants. my country also started thermal power desulfurization projects at the end of the 20th century. Therefore, this The 10-20 years at the beginning of the century will be a critical period for the desulfurization of thermal power plants in my country. [0003] At present, thermal power desulfurization mostly adopts wet trea...

AI Technical Summary

Problems solved by technology

[0006] However, the effect of the above method is limited, because the glass flakes are stacked on each other in the flake resin coating, and it is inevitable to form gaps, which provide favorable channels for water molecules to infiltrate.