Water-based swelling primer and application method thereof

Abstract

The invention relates to the technical field of primers, in particular to a water-based swelling primer and an application method thereof. The water-based swelling-preventing primer comprises the following components: polyurethane resin, a penetrating agent, a wetting agent, a defoaming agent, a coalescing agent, a sterilizing agent and water, wherein the particle size of the polyurethane resin isless than 50nm, the breaking strength of the polyurethane resin is greater than 20Mpa, and the modulus of the polyurethane resin is 1-3Mpa. According to the invention, the water-based swelling primeris developed through selection of resin in the components and adjustment of a formula auxiliary agent, and can quickly permeate into a base material guide pipe after being sprayed onto a solid wood base material, so that the part, which is easy to swell, in the base material guide pipe is fully swelled, and after the water-based swelling primer is dried, the swollen part on the surface is polished to be smooth; and then water-based paint is sprayed according to the process, so that the swelling condition cannot occur in the subsequent process, and the swelling problem is thoroughly solved.

Description

technical field [0001] The invention relates to the technical field of primers, in particular to a water-based rib-expanding primer and an application method thereof. Background technique [0002] As a common material, wood is widely used in construction, furniture and other industries. In daily life, wooden products such as wooden utensils and wooden furniture are very common. In order to improve the beauty of wood products and enhance the performance of anti-corrosion, insect resistance and wear resistance, a layer of water-based paint will be coated on the surface of wood products. Water-based paint is an environmentally friendly paint with water as the dispersion medium. During the installation process, the moisture contained in the water-based paint will enter the wood fibers of the wood, especially loose soft wood such as poplar, pine, etc., which will cause the wood fibers to absorb water and swell, causing the surface of the wood to swell and protrude from the surfa...

AI Technical Summary

Problems solved by technology

In order to improve the beauty of wood products and enhance the performance of anti-corrosion, insect resistance and wear resistance, a layer of water-based paint will be coated on the surface of wood products. Water-based paint is an environmentally friendly paint with water as the dispersion medium. During the installation process, the moisture contained in the water-based paint will enter the wood fibers of the wood, especially loose soft wood such as poplar, pine, etc., which will cause the wood fibers to absorb water and swell, causing the surface of the wood to swell and protrude from the surface. It makes the surface rough and uneven, causing the phenomenon of "swelling tendons". Moreover, after the paint dries, the rough and uneven surface of the wood caused by the water absorption of the wood fibers cannot be restored to its original shape, which affects the final effect of the wood products after painting. Water-based woodware made of wood such as poplar, pine, etc., after spraying with water-based paint, the phenomenon of "swelling tendons" seriously affects its appearance and use

[0003] For this reason, a water-based woodware anti-swelling primer has appeared on the market, which is sprayed on the surface of the woodware before spraying the water-based paint, but the existing water-based woodware primer has limited effects and cannot solve the problem of wood, especially loose wood. The phenomenon of "swelling tendons" that occurs after spraying water-based paint on wooden utensils made of high-quality wood such as poplar and pine

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