Aqueous polyurethane art painting and preparation method thereof

Abstract

The invention discloses an aqueous polyurethane art painting and a preparation method thereof. The art painting includes the following mass parts of components: 30-50 parts of aqueous polyurethane emulsion,5-20 parts of modified epoxyethane polyurethane emulsion, 5-35 parts of painting powder,10-30 parts of calcium carbonate, 0.2-0.5 part of sodium benzoate and 10-30 parts of distilled water. The steps include; firstly, stirring the aqueous polyurethane emulsion, while adding the modified epoxyethane polyurethane emulsion, so that obtaining ointment-like glue substrate material; then, dissolving the sodium benzoate in distilled water, using sodium benzoate aqueous solution to wet the painting powder and the calcium carbonate, and obtaining painting wet material by stirring; and finally, mixing the ointment-like glue substrate material with the painting wet material, and grinding the mixture to obtain aqueous polyurethane art painting product. The art painting of the invention not only has the advantages of convenient usage, strong adhesion, color stability, and simple reconciliation, but also has the excellent resistance and flexibility of picture film without sticking and cold brittleness.

Description

technical field [0001] The invention discloses a water-based polyurethane art paint for painting, and also discloses a preparation method of the water-based polyurethane art paint. Background technique [0002] In the prior art, among the art paints in the past, the art paints belonging to the water-based series include gouache, watercolor, and acrylic paint. Among them, acrylic paint (the art paint with acrylate copolymer emulsion as the base material) is easy to use and has strong adhesion. It is widely used due to its advantages of stable color and stable color. At the same time, the stroke effect and color depth can be easily adjusted with water or dilute glue solution. However, acrylic paint also has obvious defects. When using acrylic paint for painting, the dry picture is prone to stickiness when the temperature is high in summer, easy to be contaminated with dust, and brittle and easy to damage when the temperature is low in winter. The performance of acrylate copol...

AI Technical Summary

Problems solved by technology

However, acrylic paint also has obvious defects. When using acrylic paint for painting, the dry picture is prone to stickiness when the temperature is high in summer, easy to be contaminated with dust, and brittle and easy to damage when the temperature is low in winter.

The performance of acrylate copolymer emulsion has led to such defects in the art paint using it as the base material. The structure of acrylate copolymer is generally a chain linear structure, which is a thermoplastic material and is extremely sensitive to temperature. The formed pigment film cannot withstand Climate changes in winter and summer, prone to hot sticky cold brittle phenomenon

After the painter finishes drying the painting, it may be damaged due to the hot stickiness and brittleness of the picture when saving and assembling the frame. Especially for the artwork drawn by the artist, such defects cannot be tolerated