Aqueous polyurethane woodenware paint resistant to shedding

Abstract

The invention discloses an aqueous polyurethane woodenware paint resistant to shedding. The woodenware paint comprises following raw materials in parts by weight: 80 to 100 parts of hydroxyl acrylic resin, 30 to 50 parts of polyether modified organic siloxane, 6 to 12 parts of dispersant, 4 to 8 parts of styrene-acrylic emulsion, 25 to 35 parts of medical stone powder, 20 to 25 parts of wollastonite powder, 6 to 14 parts of meerschaum powder, 8 to 14 parts of heavy calcium carbonate, and 3 to 5 parts of hexamethylene diisocyanate. The woodenware paint has high toughness and a strong performance on resisting mechanical friction. The problem of dulling or shedding caused by bad toughness of common polyurethane paint is solved; moreover, the woodenware paint is environmentally friendly, the VOC content is greatly reduced during the construction process, the solid content is high, the layers of paint can be reduced at the same time, the cost is reduced therefore, the raw materials are saved, the coating is bright, the fullness is high, and the class of woodenware is greatly improved.

Description

technical field [0001] The invention relates to the technical field of wood lacquer, in particular to a water-based polyurethane wood varnish which is not easy to fall off. Background technique [0002] At present, the solvent-based polyurethane wood coatings on the market have high VOC content, which is not only expensive, but also pollutes the environment, and is difficult to be welcomed by consumers. Due to its safety and environmental protection, the share of water-based polyurethane wood coatings in coatings has increased year by year. However, for water-based polyurethane wood paint, the paint film has poor toughness, is not resistant to washing, and is prone to peeling off, which has become a problem that technical personnel need to jointly overcome. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a water-based polyurethane wood varnish that is not easy to fall off, has strong ...

AI Technical Summary

Problems solved by technology

[0003] Based on the technical problems existing in the background technology, the present invention proposes a water-based polyurethane wood varnish that is not easy to fall off, has strong toughness and mechanical friction resistance, and can be used to solve the loss of light or fall off of ordinary polyurethane varnishes due to poor toughness. It is also environmentally friendly, greatly reducing the VOC content during coating construction, high solid content, and at the same time reducing the number of coating layers of paint, which helps to reduce costs and save raw materials. The paint film is bright and full, and greatly improves the quality of wood products. grade