Nanometer negative ion functional water-based wood paint and preparation method thereof

Abstract

The invention discloses nanometer negative ion functional water-based wood paint and a preparation method thereof. The nanometer negative ion functional water-based wood paint is prepared from, by weight, 60-85 parts of aliphatic modified polyurethane dispersions, 0.3-0.8 part of water-soluble composite nanometer negative ion powder, 1-3 parts of hardening resin, 7-12 parts of water, 1-3 parts of wax emulsion and 4-12 parts of other auxiliaries. The physicochemical technical indexes of the water-based wood paint can reach or exceed those of oil-based wood paint through formula adjustment in cooperation with function materials; negative ions can be lastingly and efficiently released regardless of the small addition amount of the negative ion powder, so that air is purified, human body immunity is improved, and the water-based wood paint is environmentally friendly, free of toxicity, excellent in overall performance and high in practicality and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of water-based wood lacquer, and particularly discloses a nano negative ion functional water-based wood varnish and a preparation method thereof. Background technique [0002] The brands of water-based paints sold in the market are mixed, and the quality is uneven. Some of them contain harmful substances such as heavy metals, etc., and release formaldehyde, VOC (volatile organic compounds), etc., which will cause poisonous and harmful to the human body. Serious pollution to the environment. Negative ions are known as "air vitamins and growth hormones". Like vitamins in food, negative ions have a very important positive impact on the life activities of the human body and other organisms. The level of negative ion content is an important index to evaluate the environment and air quality. [0003] Some patented technologies have added negative ions to water-based paints to achieve environmental protection. F...

AI Technical Summary

Problems solved by technology

For example, CN104119800A uses emulsion, embedded negative ion nano silicon dioxide and other raw materials to make wall surface water-based paint, wherein the embedded negative ion includes rare earth element powder and calcium carbide gas powder, but rare earth element has radiation damage and contains some harmful to human body. For the interior decoration and furniture that are exposed to the activities of infants and young children, for safety reasons, it is not suitable to add such negative ion materials to indoor paints

[0004] In addition, CN104592878A discloses an environmentally friendly water-based paint containing composite negative ion powder, negative ion additive and water-based resin dispersion, wherein the composite negative ion powder is composed of crystal salt, nano silicon dioxide, nano phosphate titanium dioxide and nano zinc oxide, and the negative ion additive is composed of calcium carbide Gas, graphene, sepiolite and surfactant, but the cost of graphene is relatively high, and the amount of negative ion components in this patent is relatively large, so the cost of this environmental protection paint is relatively high

[0005] Similar, CN104087099A disclosed anion healthy indoor paint adopts calcium carbide gas powder to produce anion, but its consumption is also very large; CN103788854A discloses aldehyde-removing anion clear taste wooden door paint adopts hydroxy polyurethane resin, hydroxy acrylic resin as film-forming resin, adopts nano photocatalyst Material-modified silicate mineral powder is used as nano-anion powder, and its dosage is also large

Images