A room temperature multiple self-crosslinking nanometer acrylate copolymer emulsion and its preparation method and water-based wood paint based on the emulsion

An acrylate and self-crosslinking technology, which is applied in coatings and other directions, can solve the problems of decreased water resistance, increased internal stress between the paint film and the substrate, and decreased adhesion, achieving enhanced hardness, high scratch resistance, and improved The effect of hardness

Active Publication Date: 2019-04-16
HENGSHUI XINGUANG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the application is unreasonable, the internal stress between the paint film and the substrate will increase, not only the adhesion will decrease, but the water resistance will also decrease

Method used

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  • A room temperature multiple self-crosslinking nanometer acrylate copolymer emulsion and its preparation method and water-based wood paint based on the emulsion
  • A room temperature multiple self-crosslinking nanometer acrylate copolymer emulsion and its preparation method and water-based wood paint based on the emulsion
  • A room temperature multiple self-crosslinking nanometer acrylate copolymer emulsion and its preparation method and water-based wood paint based on the emulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Prepare multiple self-crosslinking nanometer acrylate copolymer emulsions at room temperature, and the dosage of each component is shown in Table 1:

[0034] Table 1

[0035]

[0036]

[0037] (1) Preparation of monomer pre-emulsion: deionized water, emulsifier A, emulsifier B, and methacrylic acid, methyl methacrylate, butyl acrylate, styrene and crosslinking agent A described in Table 1 Put into the monomer pre-emulsification tank in turn, high-speed stirring and emulsification for 1 hour to form monomer pre-emulsion;

[0038] (2) Preparation of multiple self-crosslinking nanometer acrylate copolymer emulsions at room temperature: add deionized water to the polymerization kettle, metered nanocomposite emulsions, start stirring, raise the temperature to 80°C-84°C, and after stabilizing for 15 minutes, add the step ( When the monomer pre-emulsion and ammonium persulfate solution prepared in 1) are added dropwise to 1 / 5 of the remaining monomer pre-emulsion, stop ...

Embodiment 7

[0047] The water-based wood lacquer was prepared by using the room temperature multiple self-crosslinking acrylate copolymer emulsion synthesized in Examples 1-6 above as a base material. The specific components and consumption of the water-based wood lacquer are shown in Table 3.

[0048] table 3

[0049]

[0050] (1) Add the emulsion, dispersant, wetting agent, leveling agent, anti-scratch agent and zinc stearate in a stirred tank in the formula amount shown in the table and add it to the above stirred tank, at a speed of 900r / min and stir for 10 min to obtain a uniform dispersion;

[0051] (2) In another stirred tank, take the formula amount of film-forming aids dipropylene glycol methyl ether (DPM), dipropylene glycol butyl ether (DPnB), deionized water and thickener RS-8W (polyurethane modified type) and add Stir in a stirred tank for 10 minutes to obtain a mixed solution;

[0052] (3) Slowly add the mixed solution in the stirred tank in step (2) to the stirred tan...

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Abstract

The embodiment of the present invention discloses a room temperature multiple self-crosslinking nanometer acrylate copolymer emulsion and its preparation method and a water-based wood paint based on the emulsion. The preparation and synthesis components of the emulsion include ethylenically unsaturated carboxylic acid, formazan Acrylate, Acrylate, Styrene, Modified SiO 2 Dispersion with acrylate monomer, cross-linking monomer A, vinyl siloxane, cross-linking monomer B, etc., and by introducing modified nano-SiO 2 The three cross-linking methods of cross-linking monomer, vinyl siloxane run through the preparation of multiple self-cross-linking nano-acrylate copolymer emulsions at room temperature. Water-based wood paint forms a dense protective film, which has excellent water resistance, alcohol resistance, scratch resistance, high temperature stickiness resistance and relatively high hardness. The paint film performance can be comparable to solvent-based furniture paint.

Description

technical field [0001] The invention relates to an emulsion and a water-based wood paint based on the emulsion, in particular to a room temperature multiple self-crosslinking acrylate copolymer emulsion and a water-based wood paint based on the emulsion, belonging to the field of environment-friendly basic materials . Background technique [0002] my country is a large manufacturing country. With the expansion of the economy, the national outbreak of environmental pollution and severe atmospheric smog has seriously threatened the environment on which the people of the country depend. VOC in coatings and adhesives is the cause of severe atmospheric smog. The culprit of smog is the most important cause of smog. Although the overall performance of water-based wood paints is still inferior to traditional solvent-based paints, it has become an inevitable development trend of wood paints because of its pollution-free, environmental protection and safety, and compliance with nation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/14C08F220/18C08F212/08C08F220/06C08F220/58C08F230/08C08F220/32C08F222/02C08F2/44C08F2/30C08F2/26C08K9/06C08K3/36C09D133/12C09D133/10C09D7/63
CPCC09D7/62C09D133/10C09D133/12C08F2/26C08F2/30C08F2/44C08F220/14C08F220/18C08K3/36C08K9/06C08L2312/00C08L2201/10C08L2201/08C08K2201/011C08F220/1808C08F220/1804C08F212/08C08F222/02C08F220/325C08F230/08C08F220/06C08F220/58
Inventor 田海水李成林田海宁王淑柳孙志勇
Owner HENGSHUI XINGUANG CHEM
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