Polyurethane-acrylic ester emulsion for watersoluble wood lacquer and method of producing the same

Abstract

The invention relates to a polyurethane-acrylate emulsion used for a waterborne wood lacquer. The emulsion is characterized in that: the polyurethane-acrylate emulsion for the waterborne wood lacquer comprises water, polyisocyanate, polyether polyol, small molecule polybasic alcohol, hydrophilic polybasic alcohol, hydroxyl-containing crylic acid monomer, neutralizing amine, acetone, N-methyl pyrrolidone, methyl methacrylate, adipic dihydrazide, diacetone acrylamide and azobisisobutyronitrile; the content of all components by mass percent is as follows: water: 50 percent to 60 percent, polyisocyanate: 8 percent to 15 percent, polyether polyol: 6 percent to 9 percent, small molecule polybasic alcohol: 1 percent to 2 percent, hydrophilic polybasic alcohol: 1 percent to 2 percent, hydroxyl-containing crylic acid monomer: 0.1 percent to 1 percent, neutralizing amine: 1 percent to 2 percent, acetone: 3 percent to 6 percent, N-methyl pyrrolidone: 3 percent to 6 percent, methyl methacrylate: 8 percent to 15 percent, adipic dihydrazide: 0.1 percent to 1 percent, diacetone acrylamide: 0.1 percent to 1 percent and azobisisobutyronitrile: 0.05 percent to 0.15 percent. The polyurethane-acrylate emulsion for the waterborne wood lacquer has high drying speed, good water resistance, high impact resistance and excellent abrasion performance.

Description

technical field [0001] The invention relates to an emulsion for woodware paint and a manufacturing method thereof, in particular to a polyurethane-acrylate emulsion for water-based woodware paint and a manufacturing method thereof. Background technique [0002] With the development of the economy, people's living standards are getting higher and higher, and the requirements for interior decoration design are getting higher and higher. Wood lacquer is a kind of wood coating for interior decoration. It is mainly used to coat the surface of wood to improve the smoothness of the surface of wood and make it more beautiful. Wood coatings can not destroy the wood grain on the surface of the wood, and can enhance the smoothness of the surface of the wood, so it is widely used in interior decoration, wood renovation, wood maintenance and other fields. At present, wood coatings are mainly solvent-based, and the paint is generally melted by volatile organic coatings, and then coated o...

AI Technical Summary

Problems solved by technology

The film of water-based polyurethane coating has good abrasion resistance, good impact resistance, and high fullness of the finished product after painting, but the coating dries slowly, has poor water resistance, and is expensive; acrylate emulsion coating dries quickly, has good water resistance, The price is low, but its wear resistance and impact resistance are poor, and the fullness of the finished product after painting is low. It is not suitable for high-end woodware, and its application range is narrow; polyurethane-acrylate emulsion coating is a combination of water-based polyurethane and acrylate emulsion. It is made by physical blending, but after the blending of polyurethane particles and polyacrylate, the compatibility of the particles of the two components is poor, and the particles are in a microscopic separation state, which is prone to flocculation, agglomeration, etc.