WO2021017218A1

WO2021017218A1 - Multi-functional water-based high-gloss finishing paint for woodware, and preparation method therefor

Info

Publication number: WO2021017218A1
Application number: PCT/CN2019/113529
Authority: WO
Inventors: 董智慧
Original assignee: 南京唐壹信息科技有限公司
Priority date: 2019-07-30
Filing date: 2019-10-28
Publication date: 2021-02-04
Also published as: CN112300683A

Abstract

Disclosed is a multi-functional water-based high-gloss finishing paint for woodware, and a preparation method therefor, relating to the technical field of coatings. The multi-functional water-based high gloss finishing paint for woodware has a formulation composed of the following raw materials: deionized water, a defoamer, acrylic modified polyurethane, a dispersant, a preservative, a leveling agent, di(propylene glycol) methyl ether, a wetting agent, a cosolvent, a coalescing agent, an antifreeze agent, a slip agent, and an adhesive. The multi-functional water-based high gloss finishing paint for woodware can be obtained by arranging the above raw materials in parts by weight of a certain proportion. The beneficial effects of the present invention comprise multi-functional characteristics, anti-corrosion, anti-mold, and anti-freeze functions, as well as the enhanced gloss of the finishing paint.

Description

Multifunctional water-based woodware high-gloss finish paint and preparation method thereof

Technical field

The invention relates to the technical field of coatings, in particular to a multifunctional water-based woodware high-gloss finish paint.

Background technique

Varnish, also known as Van Lishui, is a coating composed of resin as the main film-forming substance and solvent. Because the paint and film are transparent, it is also called transparent paint. Coated on the surface of the object, and dried to form a smooth film, showing the original texture of the surface.

After the traditional varnish is painted, it takes a long time to let it dry, and the traditional varnish does not have a good protective effect on the product.

Summary of the invention

The purpose of the present invention is to provide a multifunctional water-based high gloss finish paint for woodware in view of the defects and shortcomings of the prior art. The gloss.

In order to achieve the above purpose, the present invention adopts the following technical solutions: a multifunctional water-based woodware high-gloss finish is composed of the following raw materials in weight fraction: 10-20 parts deionized water, 1.5-2 parts defoamer, acrylic modified polyurethane 80-100 parts, dispersant 4-6 parts, preservative 1-2 parts, leveling agent 10-15 parts, dipropylene glycol methyl ether 4-6 parts, wetting agent 5-10 parts, cosolvent 4-8 parts, 4-6 parts of film-forming auxiliary, 10-20 parts of antifreeze, 8-10 parts of slip agent, 10-15 parts of adhesive. Its formula process includes the following steps: the first step is to add acrylic modified polyurethane and cosolvent in the first mixing tank for uniform stirring; the second step is to add deionized water and dipropylene glycol methyl ether in the second mixing tank for pretreatment. Stir to obtain component A; in the third step, add defoamer and dispersant into the third mixing tank for pre-stirring to obtain component B; in the fourth step, place the prefabricated component A and component B in the first mixing tank Stir; in the fifth step, add the wetting agent in the first mixing tank and stir evenly; in the sixth step, add the leveling agent, film forming aid, and slip agent in the first mixing tank to stir; Adhesives, antiseptics, and antifreeze are added to the barrel to adjust viscosity and adhesion; in the eighth step, the mixture in the first mixing barrel is filtered out through a filter screen.

The stirring speed when the prefabricated component A and component B are placed in the first mixing tank for mixing is 500 rpm/min.

The mixing speed of adding the wetting agent in the first mixing tank is 6000 rpm/30 min.

The mixing speed of adding the leveling agent, the film-forming auxiliary agent, and the slipping agent into the first mixing tank is 500 rpm/min, and the mixing time is 30 min.

The mesh number of the filtering sieve is ≤120 mesh.

After adopting the above technical scheme, the present invention has the beneficial effects that it has multi-functional characteristics, has the functions of anti-corrosion, anti-mildew, and anti-freeze, and at the same time enhances the gloss of the topcoat.

Detailed ways

Example 1

The technical scheme adopted in the specific embodiment of the present invention: a multifunctional water-based high-gloss finish paint for woodware is composed of the following raw materials in weight fraction: 10-20 parts deionized water, 1.5-2 parts defoamer, 80-100 acrylic modified polyurethane Parts, dispersant 4-6 parts, preservative 1-2 parts, leveling agent 10-15 parts, dipropylene glycol methyl ether 4-6 parts, wetting agent 5-10 parts, cosolvent 4-8 parts, film forming aid 4-6 parts of antifreeze, 10-20 parts of antifreeze, 8-10 parts of slip agent, 10-15 parts of adhesive. Its formula process includes the following steps: the first step is to add acrylic modified polyurethane and cosolvent in the first mixing tank for uniform stirring; the second step is to add deionized water and dipropylene glycol methyl ether in the second mixing tank for pretreatment. Stir to obtain component A; in the third step, add defoamer and dispersant into the third mixing tank for pre-stirring to obtain component B; in the fourth step, place the prefabricated component A and component B in the first mixing tank Stir; in the fifth step, add the wetting agent in the first mixing tank and stir evenly; in the sixth step, add the leveling agent, film forming aid, and slip agent in the first mixing tank to stir; Adhesives, antiseptics, and antifreeze are added to the barrel to adjust viscosity and adhesion; in the eighth step, the mixture in the first mixing barrel is filtered out through a filter screen.

Dispersant is a surfactant with two opposite properties, lipophilicity and hydrophilicity, in the molecule. It can uniformly disperse the solid and liquid particles of inorganic and organic pigments that are difficult to dissolve in liquids. It can also prevent the sedimentation and agglomeration of the particles to form the amphiphilic reagent required for a stable suspension.

Leveling agent is a commonly used coating additive, which can promote the formation of a smooth, smooth and uniform coating film during the drying and film forming process. A class of substances that can effectively reduce the surface tension of the coating liquid and improve its leveling and uniformity. It can improve the permeability of the coating liquid, reduce the possibility of spots and scars when brushing, increase the coverage, and make the film formation uniform and natural. Mainly surfactants, organic solvents, etc. There are many types of leveling agents, and the types of leveling agents used in different coatings are not the same. High boiling point solvents or butyl cellulose can be used in solvent-based finishing agents. Surfactant or polyacrylic acid, carboxymethyl cellulose, etc. are used in water-based finishing agents

Thickeners are also called gelling agents, and they are also called pastes or food glues when used in food. It can increase the viscosity of the system, keep the system in a uniform and stable suspension or turbid state or form a gel. It is widely used in food, coatings, adhesives, cosmetics, detergents, printing and dyeing, rubber, medicine and other fields.

Film forming aids are also called coalescing aids. It can promote the plastic flow and elastic deformation of polymer compounds, improve the coalescence performance, and form a film in a wide range of construction temperature. It is a plasticizer that disappears easily. Commonly used are strong solvents for ether alcohol polymers, such as propylene glycol butyl ether, propylene glycol methyl ether acetate, etc.

Preservatives are a class of food additives that can inhibit microbial activity and prevent food from spoiling. To make food have a certain preservation period, it is necessary to adopt certain measures to prevent microbial infection and reproduction. Practice has proved that the use of preservatives is one of the most economical, effective and simplest ways to achieve the above objectives.

Example 2

The difference between this embodiment and embodiment 1 is that it is composed of the following raw materials in weight fraction: 15 parts deionized water, 1.7 parts defoamer, 85 parts acrylic modified polyurethane, 5 parts dispersant, 1 part preservative, flow rate 14 parts of flat agent, 5 parts of dipropylene glycol methyl ether, 6 parts of wetting agent, 7 parts of co-solvent, 5 parts of film-forming auxiliary, 11 parts of antifreeze, 9 parts of slip agent, 14 parts of adhesive, and other raw materials. The parts by weight configuration are the same as in Example 1.

Example 3

The difference between this example and Example 1 is that it is composed of the following raw materials in weight fraction: 18 parts deionized water, 2 parts defoamer, 90 parts acrylic modified polyurethane, 4.5 parts dispersant, 2 parts preservative, and 14 parts of flat agent, 5 parts of dipropylene glycol methyl ether, 6 parts of wetting agent, 7 parts of co-solvent, 5 parts of film-forming auxiliary, 15 parts of antifreeze, 9 parts of slip agent, 14 parts of adhesive, and other raw materials. The parts by weight configuration are the same as in Example 1.

Example 4

The difference between this example and example 1 is that it is composed of the following raw materials in weight fraction: 20 parts deionized water, 2 parts defoamer, 90 parts acrylic modified polyurethane, 6 parts dispersant, 2 parts preservative, flow rate 14 parts of flat agent, 6 parts of dipropylene glycol methyl ether, 9 parts of wetting agent, 7 parts of co-solvent, 5 parts of film-forming auxiliary, 18 parts of antifreeze, 9 parts of slip agent, 14 parts of adhesive, and other raw materials. The parts by weight configuration are the same as in Example 1.

The above descriptions are only used to illustrate the technical solutions of the present invention and not to limit them. Other modifications or equivalent substitutions made by those of ordinary skill in the art to the technical solutions of the present invention shall be applicable as long as they do not depart from the spirit and scope of the technical solutions of the present invention. Covered in the scope of the claims of the present invention.

Claims

A multifunctional water-based high-gloss finish paint for woodware, characterized in that it is composed of the following raw materials in weight fraction: 10-20 parts deionized water, 1.5-2 parts defoamer, 80-100 parts acrylic modified polyurethane, and 4 dispersant -6 parts, 1-2 parts of preservative, 10-15 parts of leveling agent, 4-6 parts of dipropylene glycol methyl ether, 5-10 parts of wetting agent, 4-8 parts of co-solvent, 4-6 parts of film-forming auxiliary , 10-20 parts of antifreeze, 8-10 parts of slip agent, 10-15 parts of adhesive.
A multifunctional water-based high-gloss finish paint for woodware, which is characterized in that it comprises the following steps: in the first step, add acrylic-modified polyurethane and co-solvent in the first mixing tank for uniform mixing; Ionized water and dipropylene glycol methyl ether are pre-stirred to obtain component A; in the third step, defoamer and dispersant are added in the third stirring tank for pre-stirring to obtain component B; in the fourth step, the pre-prepared component A and group Part B is placed in the first mixing tank for mixing; the fifth step is to add a wetting agent in the first mixing tank and stir evenly; the sixth step is to add a leveling agent, a film forming aid, and a slip agent in the first mixing tank Stirring; the seventh step is to add binder, antiseptic, and antifreeze in the first mixing tank to adjust the viscosity and adhesion; in the eighth step, the mixture inside the first mixing tank is filtered out through a filter screen.
A multifunctional water-based high gloss finish paint for woodware according to claim 1, characterized in that it is composed of the following raw materials in weight fraction: 15 parts deionized water, 1.7 parts defoamer, 85 parts acrylic modified polyurethane, dispersant 5 parts, 1 part of preservative, 14 parts of leveling agent, 5 parts of dipropylene glycol methyl ether, 6 parts of wetting agent, 7 parts of co-solvent, 5 parts of film-forming aids, 11 parts of antifreeze, 9 parts of slip agent, viscous 14 parts mixture.
The multifunctional water-based high gloss finish paint for woodware according to claim 1, characterized in that it is composed of the following raw materials in weight fraction: 18 parts deionized water, 2 parts defoamer, 90 parts acrylic modified polyurethane, dispersant 4.5 parts, 2 parts of preservative, 14 parts of leveling agent, 5 parts of dipropylene glycol methyl ether, 6 parts of wetting agent, 7 parts of co-solvent, 5 parts of film forming aids, 15 parts of antifreeze, 9 parts of slip agent, viscous 14 parts mixture.
The multifunctional water-based high gloss finish paint for woodware according to claim 1, characterized in that it is composed of the following raw materials in weight fraction: 20 parts deionized water, 2 parts defoamer, 90 parts acrylic modified polyurethane, and dispersant 6 parts, 2 parts of preservative, 14 parts of leveling agent, 6 parts of dipropylene glycol methyl ether, 9 parts of wetting agent, 7 parts of co-solvent, 5 parts of film-forming aids, 18 parts of antifreeze, 9 parts of slip agent, viscous 14 parts mixture.
The multifunctional water-based high-gloss finish paint for woodware according to claim 2, characterized in that: the mixing speed when the prefabricated component A and component B are placed in the first mixing tank for mixing is 500 rpm/ min.
The multifunctional water-based high-gloss finish paint for woodware according to claim 2, characterized in that: the mixing speed of adding the wetting agent in the first mixing barrel is 6000 rpm/30 min.
The multifunctional water-based high gloss finish paint for woodware according to claim 2, characterized in that: the mixing speed of adding leveling agent, film forming aid, and slip agent in the first mixing barrel is 500 rpm/min , The stirring time is 30min.
The multifunctional water-based high-gloss finish paint for woodware according to claim 2, characterized in that the mesh number of the filter screen is ≤120 mesh.