Optical function modified polyurethane composite paint and preparation method thereof

Abstract

The invention discloses optical function modified polyurethane composite paint. The optical function modified polyurethane composite paint is prepared from, by mass, 25-30% of polyurethane, 12-17% ofurea-formaldehyde resin, 8-11% of cellulose acetate, 4.2-4.8% of polyvinyl butyral, 3.6-4.1% of ethanol, 2.7-3.5% of anhydrous diethyl ether, 1.5-2.5% of fumed silica, 1.2-2.3% of dioctyl phthalate, 6-12% of luminescent powder, 2-5% of dispersing agents and the balance being precipitating agents. The invention further discloses a preparation method of the optical function modified polyurethane composite paint. The method comprises the following steps of performing reacting and filtrating, performing heating and stirring, performing sputtering treatment, performing cleaning, performing high-speed stirring, and performing ultrasonic treatment. According to the optical function modified polyurethane composite paint and the preparation method thereof, the formula is more reasonable, the glossiness and the color degree of the paint are obviously improved, the addition of toxic substances is reduced to a maximum extent, that the physical health of a user is free of being damaged is ensured,the environmental friendliness is high, and the paint has larger market competitiveness; and moreover, the preparation method is simpler and low in equipment requirement, and has a good popularizationeffect.

Description

technical field [0001] The invention relates to the technical field of polyurethane materials, in particular to a light function modified polyurethane composite coating and a preparation method thereof. Background technique [0002] Paint, traditionally called paint in China. The so-called paint is coated on the surface of the object to be protected or decorated, and can form a continuous film firmly attached to the object to be coated. It is usually based on resin, oil or emulsion, with or without adding pigments and fillers. Agents are viscous liquids prepared with organic solvents or water. The relatively authoritative book "Painting Technology" in the Chinese coatings industry defines it as follows: "Painting is a material that can be coated on the surface of an object by different construction techniques to form a firm adhesion, a certain strength, and a continuous coating. Solid film. The film formed in this way is commonly called "coating film, also known as paint f...

AI Technical Summary

Problems solved by technology

The film formed in this way is commonly known as "coating film, also known as paint film or coating"; the existing coating formula is complicated, the gloss and color of the surface are not enough, it is difficult to meet the needs of the market, and it contains more harmful substances, affecting users. health, for this reason, we propose a light function modified polyurethane composite coating and its preparation method