A kind of UV rapid curing method of epoxy soybean oil acrylate resin

Abstract

The invention provides a UV rapid curing method of epoxidized soybean oil acrylate resin. The UV rapid curing method comprises steps of silica sol preparation, primary epoxidized soybean oil acrylate resin preparation, and epoxidized soybean oil acrylate resin hybrid system preparation; and at the same time, combination of a base layer with a surface layer, and combination of curing with ultraviolet lights of different wave bands are adopted. Nano particles are added via silica sol preparation, maleic anhydride is used for auxiliary curing, and photocuring of different coating layers with light of different wave bands is adopted, so that rapid UV curing of paint film is realized, adhesive force is ensured, and paint film curing rate is increased greatly at the same time; the UV rapid curing method can be used for large area or local rapid repairing of steel structure surfaces such as coated steel sheet houses, and adhesive force and corrosion resistance of the paint film obtained via repairing are both excellent.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a UV rapid curing method of epoxy soybean oil acrylate resin, which can quickly repair large-area or local paint surfaces of steel structures such as steel structure workshops and steel structure stadiums at any time. Background technique [0002] Steel structure refers to a structural form that can bear and transmit loads connected by steel plates and hot-rolled, cold-formed or welded profiles through connectors. The steel structure system has comprehensive advantages such as light weight, factory manufacturing, fast installation, short construction period, good seismic performance, fast investment recovery, and less environmental pollution. With the unique advantages of development in three aspects, steel structures have been reasonably and widely used in the field of construction engineering on a global scale, especially in developed countries and regions. For example, color...

AI Technical Summary

Problems solved by technology

At present, the plant structure of the factory is built with steel structures such as color steel plates. The paint surface of the steel structures must withstand exposure to freezing and rain, temperature fluctuations, and environmental corrosion such as acid rain. However, the existing steel structures such as color steel plates are used Under the influence of external environment and force majeure, the paint is prone to local damage or even large area peeling off. If the paint surface is not repaired, it will seriously affect the service life of the color steel plate

[0003] In recent years, the domestic coating industry has developed vigorously, among which UV-curable coatings have become an important part of the coating industry. There are many types of UV-curable coatings, the most common being free radical photo-curable coatings. Due to the complicated situation on the surface after the original paint surface falls off or is damaged, the existing cured coatings cannot quickly and effectively repair the damaged paint surface due to the influence of factors such as its curing efficiency. Research on UV-curing coatings for steel structure paint surface repair such as steel plates, so a UV fast-curing coating that can quickly repair large-area or localized steel structure paint surfaces at any time needs to be developed urgently