Preparation method of multifunctional composite coating

Abstract

The invention discloses a preparation method of a multifunctional composite coating which has disinsection, sterilization and formaldehyde decomposing functions. The preparation method comprises weighing and preparing, and is characterized by comprising the following specific steps of: (1) putting 10 percent of polyvinyl alcohol aqueous solution and 15 percent of waterborne epoxy resin into a container for stirring uniformly and mechanically at the stirring speed 300 r / min, adding 20 percent of calcium carbonate and 10 percent of sodium hexametahposphate, and mechanically stirring under the assistance of ultrasonic waves for 15 minutes at the ultrasonic frequency 500Hz, the power 280W and the stirring speed 280 r / min; (2) adding 10 percent of pyrethrum and 5 percent of veratrum, and continually stirring at the rotating speed 100 r / min for 5 minutes; (3) adding 15 percent of anatase nano-titanium oxide and performing ultrasonic treatment under the action of ultrasonic waves at the power 500W and the frequency 500Hz for 10 minutes; and (4) adding 15 percent of water to obtain the multifunctional composite coating. The coating prepared with the method has complete functions and high adaptability, and contributes to improving the environmental quality.

Description

technical field [0001] The invention relates to a preparation method of a multifunctional composite coating, in particular to a preparation method of a water-based multifunctional composite coating capable of killing insects, sterilizing bacteria and decomposing formaldehyde. Background technique [0002] Mosquitoes and flies are public nuisances of human beings, which dry up people's lives. Existing people generally use spray-type insecticides and heating-evaporative insecticides, which have the advantages of convenience and rapid insecticide, but they are highly toxic and have peculiar smell. Pollution to the environment, the area of ​​anti-killing is small, the time limit is short, the toxic residue is large, and long-term use of a kind of insecticide is easy to produce drug resistance, which needs to be constantly updated; this method of insecticide requires people to frequently carry out insecticide work , which must be done almost every day. With the development of te...

AI Technical Summary

Problems solved by technology

[0003] During the production process of coatings, bacteria may be introduced into the coating production formula at any stage of the manufacturing process due to contamination of raw materials, unclean equipment or unclean water sources. Once the coating is contaminated with bacteria, it will adhere to the coating surface for production Microorganisms will bring a series of troubles such as loss of gloss and deformation to the coating, and even cause cracking and loss of adhesion of the coating, and more seriously, it will cause corrosion and peeling of the coating, etc.