阅读说明：本技术 一种用于木制品的水性涂料及其制备方法 (Water-based paint for wooden products and preparation method thereof ) 是由 王春弟 任德旺 于 2020-07-13 设计创作，主要内容包括：本发明公开了一种用于木制品的水性涂料及其制备方法,该涂料的各个组成成分及其所占的重量份为：杀菌剂1.9～2.2份、消泡剂0.7～0.9份、流平剂0.6～0.8份、研磨剂2.8～3.2份、硅丙乳液7.4～7.6份、成膜助剂15.7～16.3份、纯净水9.5～10.5份、235乳液59～60份、填料1.95～2.15份。本发明还提供了一种用于木制品的水性涂料的制备方法。该用于木制品的水性涂料具有功能多样、加工方便、经济实用、绿色环保的特点,适合推广应用。(The invention discloses a water-based paint for wood products and a preparation method thereof, wherein the paint comprises the following components in parts by weight: 1.9-2.2 parts of bactericide, 0.7-0.9 part of defoaming agent, 0.6-0.8 part of flatting agent, 2.8-3.2 parts of grinding agent, 7.4-7.6 parts of silicone-acrylic emulsion, 15.7-16.3 parts of film-forming assistant, 9.5-10.5 parts of purified water, 59-60 parts of 235 emulsion and 1.95-2.15 parts of filler. The invention also provides a preparation method of the water-based paint for the wood products. The water-based paint for the wooden products has the characteristics of multiple functions, convenience in processing, economy, practicability, environmental friendliness and suitability for popularization and application.)

1. The water-based paint for the wooden products is characterized by comprising the following components in parts by weight: 1.9-2.2 parts of bactericide, 0.7-0.9 part of defoaming agent, 0.6-0.8 part of flatting agent, 2.8-3.2 parts of grinding agent, 7.4-7.6 parts of silicone-acrylic emulsion, 15.7-16.3 parts of film-forming assistant, 9.5-10.5 parts of purified water, 59-60 parts of 235 emulsion and 1.95-2.15 parts of filler.

2. The aqueous coating for wood products according to claim 1, wherein the components and their weight portions are: 2.0 parts of bactericide, 0.8 part of defoaming agent, 0.7 part of flatting agent, 3 parts of grinding agent, 7.5 parts of silicone-acrylic emulsion, 16 parts of film-forming assistant, 10 parts of purified water, 60 parts of 235 emulsion and 2 parts of filler.

3. The aqueous coating for wood products according to claim 1, wherein the biocide is 5-chloro-2-methyl-4-isothiazolin-3-one or 2-methyl-4-isothiazolin-3-one.

4. The aqueous coating for wood products according to claim 1, wherein the defoamer is a mixture of a foam-breaking polymer and polysiloxane, and the leveling agent is a fluorine-containing acrylate copolymer.

5. The aqueous coating for wood products according to claim 1, wherein the abrasive is calcium stearate.

6. The waterborne coating for wood products according to claim 1, wherein said silicone acrylic emulsion comprises unsaturated silicone monomers, acrylic monomers and auxiliaries.

Technical Field

The invention belongs to the technical field of coatings, relates to a water-based coating for wood products and a preparation method thereof, and particularly relates to a water-based coating for preventing the phenomena of cracking, deformation, mildewing, rib expansion and the like of the wood products and a preparation method thereof.

Background

The wood products include products of solid wood and artificial boards, the coatings used on the wood products are collectively called wood coatings, and the wood coatings comprise coatings selected from furniture, doors and windows, wall panels, floors, daily necessities, wooden musical instruments, sports goods, stationery, children toys and the like, and generally the wood coatings mainly comprise furniture coatings. At present, products in the same field of the market mainly adopt oil paint, and cannot meet higher environmental protection requirements. All wood products enterprises are trying aqueous products. The current water-based paint development types in China include self-crosslinking type, acid curing type and polyurethane water dispersion type, compared with solvent paint, the water-based paint has incomparable superiority in the aspects of saving energy and protecting environment, a large amount of VOC is not volatilized into the air, organic solvent is not used, water is used as diluent, energy is saved, but the defect also exists, compared with solvent type wood paint, the water-based paint is slow to dry, low in hardness and easy to tack, compared with the solvent type wood paint, in the aspect of paint film performance, the water-based paint is not matched with the solvent type wood paint in paint film fullness, and according to the performance which can be achieved by the water-based paint at present, the water-based paint is selected for decoration in public places such as houses, hotels, restaurants and the like, and wood doors, wall panels and the like are protected and.

The water-based paint in the prior art has single function, does not have the functions of preventing wooden products from cracking, deforming, wetting and mildewing, enhancing adhesive force, resisting weather, ultraviolet rays and the like, and cannot meet the requirements of people.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the water-based paint for the wood products and the preparation method thereof, which can prevent the phenomena of cracking, deformation, mildew, rib expansion and the like of the wood products.

The specific technical scheme is as follows:

the water paint for wooden products comprises the following components in parts by weight: 1.9-2.2 parts of bactericide, 0.7-0.9 part of defoaming agent, 0.6-0.8 part of flatting agent, 2.8-3.2 parts of grinding agent, 7.4-7.6 parts of silicone-acrylic emulsion, 15.7-16.3 parts of film-forming assistant, 9.5-10.5 parts of purified water, 59-60 parts of 235 emulsion and 1.95-2.15 parts of filler.

Preferably, the components and the weight portions thereof are as follows: 2.0 parts of bactericide, 0.8 part of defoaming agent, 0.7 part of flatting agent, 3 parts of grinding agent, 7.5 parts of silicone-acrylic emulsion, 16 parts of film-forming assistant, 10 parts of purified water, 60 parts of 235 emulsion and 2 parts of filler.

Further, the bactericide is 5-chloro-2-methyl-4-isothiazolin-3-one (CMI) or 2-methyl-4-isothiazolin-3-one (MI).

Further, the defoaming agent is a mixture of a foam breaking polymer and polysiloxane.

Further, the leveling agent is a fluorine-containing acrylate copolymer.

Further, the grinding agent is calcium stearate.

Further, the silicone-acrylate emulsion contains an organosilicon monomer with an unsaturated bond, an acrylic monomer and an auxiliary agent.

Further, the film-forming assistant is benzyl alcohol BA.

Further, the 235 emulsion comprises polyvinyl alcohol, formaldehyde, corn starch, sodium hydroxide, hydrochloric acid, hydrogen peroxide, borax, urea, stearic acid, a latex stabilizer, a composite drier, a catalyst and water.

Further, the filler comprises calcium carbonate (heavy calcium and light calcium), barite powder (barium sulfate), talcum powder, kaolin (porcelain land), porous powder quartz (silicon dioxide), white carbon black, precipitated barium sulfate, mica powder, wollastonite, bentonite and the like. The purified water is pH neutral purified water.

The invention discloses a method for preparing a water-based paint for wood products, which comprises the following steps:

putting the 235 emulsion into a stirring container according to a proportion, and sequentially adding the film-forming auxiliary agent, the silicone-acrylate emulsion, the defoaming agent, the flatting agent, the grinding agent, the filler, the purified water and the bactericide according to the proportion; stirring at constant temperature, and filling into barrel.

Compared with the prior art, the invention has the beneficial effects that:

the water-based paint for the wooden products has no harmful substances through the detection of the national quality detection center, and has the advantages of environmental protection; the coating is a water-based multifunctional coating product, can simultaneously solve the problems of cracking, deformation, dampness, mildew and the like of wood products, and has the advantage of multiple functions; the product has strong practicability and convenient use. In the aspect of processing technology, the paint is suitable for various coating modes, is easy to polish and enhances the adhesive force. The coating has scientific working principle, and wood fiber conduits are blocked, so that the wood is not changed by temperature and humidity changes. The formed paint film has reasonable effect of air permeability and water impermeability, thereby controlling the water content of the wood. In the specific application process, the coating can reduce the after-sale problems caused by the cracking, deformation, dampness and mildew of wood products and the like by more than 90 percent. Greatly reducing the factory return repair rate of wooden product manufacturers and being suitable for popularization and application.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to specific examples.

Example 1

The water paint for wooden products comprises the following components in parts by weight: 1.9 parts of bactericide, 0.7 part of defoaming agent, 0.6 part of flatting agent, 2.8 parts of grinding agent, 7.4 parts of silicone-acrylate emulsion, 15.7 parts of film-forming assistant, 9.5 parts of purified water, 59 parts of 235 emulsion and 1.95 parts of filler.

Preferably, the components and the weight portions thereof are as follows: 2.0 parts of bactericide, 0.8 part of defoaming agent, 0.7 part of flatting agent, 3 parts of grinding agent, 7.5 parts of silicone-acrylic emulsion, 16 parts of film-forming assistant, 10 parts of purified water, 60 parts of 235 emulsion and 2 parts of filler.

The bactericide is 5-chloro-2-methyl-4-isothiazolin-3-one (CMI).

The defoaming agent is a mixture of a foam breaking polymer and polysiloxane.

The leveling agent is a fluorine-containing acrylate copolymer.

The grinding agent is calcium stearate.

The silicone-acrylate emulsion contains an organosilicon monomer with unsaturated bonds, an acrylic monomer and an auxiliary agent.

The film-forming assistant is benzyl alcohol BA.

The 235 emulsion comprises polyvinyl alcohol, formaldehyde, corn starch, sodium hydroxide, hydrochloric acid, hydrogen peroxide, borax, urea, stearic acid, a latex stabilizer, a composite drier, a catalyst and water.

The filler comprises calcium carbonate (heavy calcium and light calcium), barite powder (barium sulfate), talcum powder, kaolin (porcelain land), porous powder quartz (silicon dioxide), white carbon black, precipitated barium sulfate, mica powder, wollastonite, bentonite and the like. The purified water is pH neutral purified water.

The invention discloses a preparation method of a water-based paint for wood products, which comprises the following steps:

putting the 235 emulsion into a stirring container according to a proportion, and sequentially adding the film-forming auxiliary agent, the silicone-acrylate emulsion, the defoaming agent, the flatting agent, the grinding agent, the filler, the purified water and the bactericide according to the proportion; stirring at constant temperature, and filling into barrel.

Example 2

The water paint for wooden products comprises the following components in parts by weight: 2.0 parts of bactericide, 0.8 part of defoaming agent, 0.7 part of flatting agent, 3 parts of grinding agent, 7.5 parts of silicone-acrylic emulsion, 16 parts of film-forming assistant, 10 parts of purified water, 60 parts of 235 emulsion and 2 parts of filler.

The bactericide is 5-chloro-2-methyl-4-isothiazolin-3-one (CMI).

The defoaming agent is a mixture of a foam breaking polymer and polysiloxane.

The leveling agent is a fluorine-containing acrylate copolymer.

The grinding agent is calcium stearate.

The silicone-acrylate emulsion contains an organosilicon monomer with unsaturated bonds, an acrylic monomer and an auxiliary agent.

The film-forming assistant is benzyl alcohol BA.

The 235 emulsion comprises polyvinyl alcohol, formaldehyde, corn starch, sodium hydroxide, hydrochloric acid, hydrogen peroxide, borax, urea, stearic acid, a latex stabilizer, a composite drier, a catalyst and water.

The filler comprises calcium carbonate (heavy calcium and light calcium), barite powder (barium sulfate), talcum powder, kaolin (porcelain land), porous powder quartz (silicon dioxide), white carbon black, precipitated barium sulfate, mica powder, wollastonite, bentonite and the like. The purified water is pH neutral purified water.

The preparation method is the same as example 1.

Example 3

The water paint for wooden products comprises the following components in parts by weight: 2.2 parts of bactericide, 0.9 part of defoaming agent, 0.8 part of flatting agent, 3.2 parts of grinding agent, 7.6 parts of silicone-acrylate emulsion, 16.3 parts of film-forming assistant, 10.5 parts of purified water, 60 parts of 235 emulsion and 2.15 parts of filler.

Preferably, the components and the weight portions thereof are as follows: 2.0 parts of bactericide, 0.8 part of defoaming agent, 0.7 part of flatting agent, 3 parts of grinding agent, 7.5 parts of silicone-acrylic emulsion, 16 parts of film-forming assistant, 10 parts of purified water, 60 parts of 235 emulsion and 2 parts of filler.

The bactericide is 2-methyl-4-isothiazoline-3-ketone (MI).

The defoaming agent is a mixture of a foam breaking polymer and polysiloxane.

The leveling agent is a fluorine-containing acrylate copolymer.

The grinding agent is calcium stearate.

The silicone-acrylate emulsion contains an organosilicon monomer with unsaturated bonds, an acrylic monomer and an auxiliary agent.

The film-forming assistant is benzyl alcohol BA.

The 235 emulsion comprises polyvinyl alcohol, formaldehyde, corn starch, sodium hydroxide, hydrochloric acid, hydrogen peroxide, borax, urea, stearic acid, a latex stabilizer, a composite drier, a catalyst and water.

The filler comprises calcium carbonate (heavy calcium and light calcium), barite powder (barium sulfate), talcum powder, kaolin (porcelain land), porous powder quartz (silicon dioxide), white carbon black, precipitated barium sulfate, mica powder, wollastonite, bentonite and the like. The purified water is pH neutral purified water.

The preparation method is the same as example 1.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and any simple modifications or equivalent substitutions of the technical solutions that can be obviously obtained by those skilled in the art within the technical scope of the present invention are within the scope of the present invention.