Method for preparing photocatalyst dried polyester paint

Abstract

The invention discloses a method for preparing photocatalyst dried polyester paint and belongs to the technical field of coating preparation. Epoxidized soybean oil in acrylate emulsion has strong oxidation resistance and can achieve an effect of promoting cured crosslinking of the polyester paint. A hydroxyl condensation dehydration reaction between the epoxidized soybean oil and acrylate is carried out so as to form a network interpenetrating crosslinked structure, the epoxidized soybean oil contains epoxy groups, ether bonds, hydroxyl and other polar groups and active groups and is combinedwith titanium dioxide to prepare photocatalyst dried powder, synergistic effects and photosensitization are achieved between carbon nano tubes and titanium dioxide molecules, the photocatalytic activity of the nano titanium dioxide can be improved, the photocatalytic efficiency is improved, degradation and volatilization of the titanium dioxide on polluting solvents can be enhanced, and a dryingeffect is achieved. Moreover, toxic and harmful gases in air such as formaldehyde can be effectively degraded, multiple types of bacteria can be effectively killed, and the polyester paint has deodorization property and anti-fouling performance and is wide in application prospects.

Description

technical field [0001] The invention discloses a preparation method of photocatalyst-dried polyester paint, which belongs to the technical field of paint preparation. Background technique [0002] Polyester paint is also called unsaturated polyester paint. It is a multi-component paint and is a thick paint made of polyester resin as the main film-forming substance. The paint film of polyester paint is plump, and layer thickness face is hard. Polyester paint has varnish kind equally, is polyester varnish. Need to be cured in Polyester Paint construction process, the deal of these curing agents accounts for the total deal 1 / 3rd of paint. The comprehensive performance of the paint film of polyester paint is excellent. Because of the use of curing agent, the hardness of the paint film is higher, hard and wear-resistant, high in richness, and resistant to humidity and heat, dry heat, acid and alkali oils, solvents and various chemicals. High insulation. [0003] In the 20th c...

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is aimed at the poor flexibility of the current saturated polyester paint, which is easy to be brittle and cracked when it is stressed. Once the paint film is damaged, it is not easy to repair. The curing agent used in the polyester paint contains aromatic isocyanate, such as TDI, etc. Toxic substances, the solvents used are toluene, xylene, aldehydes, ketones and other substances, which are likely to cause environmental pollution and poison the human body, and the paint film is prone to yellowing due to long-term exposure to ultraviolet light. The preparation method of ester paint