Odor-free and ultralow-VOC high-performance environment-friendly latex paint

Abstract

The invention relates to odor-free and ultralow-VOC high-performance environment-friendly latex paint which comprises the main following components by weight percent: 13-20 of vinyl acetate-ethylene latex (VAE for short), 40-50 of color stuffing, 33-38 of deionized water, 0.3-1.0 of moistening dispersant, 0.4-1.0 of polyurethanes and cellulosic thickening agent, 0.1-0.5 of defoaming agent, 0.1-0.3 of antiseptic fungicide, 0.1-0.3 of pH regulator and other auxiliary agents which have no odor and do not contain VOC likewise. The invention can prepare more environment-friendly latex paint with the combination of odor free, ultralow VOC and high performance without antifreezing auxiliary agents or film-forming auxiliary agents by reasonably selecting film-foaming base stocks and a plurality of auxiliary agent products with low odor and ultralow VOC.

Description

technical field [0001] The invention relates to a building decoration material, in particular to a latex paint, in particular to a high-performance environmentally friendly latex paint with clean odor and ultra-low VOC. Background technique [0002] In recent years, with the rapid improvement of social progress and people's living standards and awareness, people's awareness of environmental protection and health is increasing, and the international and domestic environmental protection calls are also increasing. Higher requirements have been imposed, and healthy latex paints that are non-toxic, odorless, and VOC-free are becoming more and more popular. Developed countries in the world have introduced increasingly strict restrictions. The product certification conditions of the logo limit the volatile organic content of latex paint. Any paint product with a VOC content of less than 30g / l is called a low-VOC latex paint; and when the VOC content tends to zero, it belongs to ze...

AI Technical Summary

Problems solved by technology

However, plasticizers will still volatilize slowly and affect the environment, and generally have a special odor; redispersible rubber powder can basically solve the odor problem, but this type of product mainly sacrifices scrub resistance, water resistance and other properties or is more expensive cost to relatively overcome these performance losses; and the use of styrene-acrylic or pure acrylic polymer base materials with low film-forming temperature and no need for film-forming cosolvents, as stated in the above patent, can solve the drawbacks of freeze-thaw resistance and stability in terms of performance, but in practice It is well known in the world that freeze-thaw stability is the weakness of this type of polymer base material. Of course, it cannot be ruled out that the styrene-acrylic or pure acrylic polymer base materials that everyone chooses are special products with excellent performance. However, let alone special styrene-acrylic or pure acrylic polymer base materials. Pure acrylic products are expensive. These patents are pursuing the realization of ultra-low or zero VOC while ignoring the negative impact of odor on people's lives. Products such as ammonia and formaldehyde are not defined as VOC, but their odor is irritating. Unbearable, and in order to avoid freeze-thaw stability problems, it is still necessary to add antifreeze additives, which actually reduces the requirements for ultra-low or zero VOC and will not be able to achieve a true net taste