Environment-friendly high-wear-resistant water-based varnish and preparation method thereof

Abstract

The invention relates to the technical field of varnish, and specifically relates to environment-friendly high-wear-resistant water-based varnish and a preparation method thereof. The environment-friendly high-wear-resistant water-based varnish is prepared from the following raw materials in parts by weight: 20-40 parts of modified polyurethane emulsion, 15-35 parts of modified styrene-acrylic emulsion, 2-6 parts of wax emulsion, 3-5 parts of a dispersant, 2-4 parts of a leveling agent, 1-2 parts of an antifoaming agent, 0.5-1.5 parts of a film-forming assistant, and 20-40 parts of deionized water. The environment-friendly high-wear-resistant water-based varnish involved in the invention has relatively high wear resistance, has the advantages of high gloss, good flexibility, fast drying and good anti-blocking property at the same time, and also has good film forming property and compatibility and excellent substrate adhesion performance; the gloss is high; the adhesion stress is good;the stain resistance is very strong; the resistance to water, acid and alkali is good; the anti-aging effect is achieved; no toxin and abnormal taste exist; the low-carbon and environment-friendly effect is achieved; the cost is low.

Description

technical field [0001] The invention relates to the technical field of varnish, in particular to an environment-friendly and highly wear-resistant water-based varnish and a preparation method thereof. Background technique [0002] The wear resistance of water-based varnish is mainly provided by the wax emulsion. The particle size of the wax emulsion is on the same order of magnitude as the thickness of the coating film. During the film formation process, the floating effect of wax is generated, so that the wax floats to the top layer of the coating film and is wrapped with varnish. In the resin, and partially exposed on the outside of the coating film; when the surface of the coating film is subjected to external force, due to the sliding effect of the wax protective layer, the damage of the external force to the coating film surface is weakened. [0003] In traditional water-based varnish, the binding force of the coating film to the wax emulsion particles is too small or t...

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Problems solved by technology

[0003] In traditional water-based varnish, the binding force of the coating film to the wax emulsion particles is too small or too rigid, which will cause the wax emulsion particles to fall off during the friction process, which will eventually lead to a decrease in the wear resistance of the water-based varnish. Adding too much wax emulsion will also cause Gloss reduction

Because the wear resistance of traditional water and oil can not achieve the ideal effect, while taking into account the wear resistance, the gloss is not good, resulting in the reduction of post-press processing suitability

[0004] Chinese patent CN104946115A discloses a fast-drying wear-resistant water-based varnish and its preparation method, using silicic acid alcohol wear-resistant resin, water-based polyurethane resin and water-based paint wear-resistant accelerator, etc. to prepare wear-resistant water-based varnish, although The wear resistance has been improved, but the production cost will increase accordingly

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