Environment protective polyurethane silk white paint for woodware and metal

Abstract

The invention relates to environmentally-friendly mercerizing polyurethane white paint used for environmentally-friendly woodware and metal, consisting of a component A, a component B and a component C that are mixed evenly by weight ratio that component A: component B: component C is equal to 1: 0.4 to 0.6: 0.5 to 0.6 when in use. The component A is obtained from the following ingredients by weight ratio: coconut oil alkyd resin, 45 to 55 parts; propylene glycol methyl ether propionate, 2 to 5 parts; n-butyl acetate, 3 to 6 parts; dispersing agent, 0.3 to 0.5 part; Tian-shuang brand anion auxiliaries, 1 to 2 parts; titanium dioxide, 30 to 40 parts; extinction powder, 5 to 7 parts; anti-yellow auxiliaries, 1 to 3 parts; Lubrizol 1400SF, 1 to 3 parts; Tian-shuang brand deodorant, 0.2 to 0.5 part; defoamer, 0.2 to 0.5 part; and leveling agent of 0.3 to 0.5 part. The component B is obtained from the following ingredients by weight ratio: n-butyl acetate, 30 to 50 parts; HDI trimer poly isocyanate, 22 to 30 parts; and HDI-TDI trimer, 30 to 40 parts. The component C is obtained from the following ingredients by weight ratio: n-butyl acetate, 75 to 85 parts; and propylene glycol methyl ether propionate, 15 to 25 parts. The environmentally-friendly mercerizing polyurethane white paint used for woodware and metal of the invention has the advantages of: 1. strict selection, ultra-low-free TDI and low odor; 2. good product adhesion, good flexibility and good anti-cracking and anti-shedding performance; 3. high white coating, excellent anti-yellowing performance, good hiding power, good fullness and high delicate touch; 4. good construction performance, fast low-temperature drying, surface drying at room temperature for 25 minutes, brush painting or spray painting, convenient grinding, substrate settlement workload reduction, and production efficiency improvement; and 5. negative ions release.

Description

Technical field: [0001] The invention relates to an environment-friendly polyurethane mercerized white paint for woodware and metal. Background technique: [0002] Polyurethane paint is a commonly used paint based on saturated polyester resin. It is a kind of coating with excellent comprehensive performance, and it is usually prepared by three-component or two-component according to the ratio. It is widely used in the coating and decoration of the surface of metal and wood materials. With the continuous development of the domestic painting and decoration industry, the requirements for the surface effect of the painting are getting higher and higher. Among them, the mercerized white paint is very popular in the market. Especially in the surface coating market of high-end products, the demand for mercerized white paint is increasing. High-quality coatings place higher and higher demands on coatings. Under the increasingly fierce competition among industries, the coating m...

AI Technical Summary

Problems solved by technology

The common problem of existing polyurethane white paints in the market is: in conventional formulations, polyurethane white paints contain a large number of double chains in the resin, and benzene rings are brought into the compatible curing agent (toluene diisocyanate and trimethylolpropane prepolymerized objects); the paint film is prone to yellowing, cracking, poor adhesion, and affects the surface effect