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Heat and cold resisting water-soluble air-drying acrylic resin and preparing method thereof

An acrylic resin, hot water soluble technology, applied in the direction of coating, etc., can solve the problems of insufficient water resistance, insufficient dryness, easy to be stained, etc., and achieve the effect of superior cold and heat resistance, fast drying speed, and good toughness

Active Publication Date: 2016-04-20
YINGDE BOTE CHEM INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a cold and hot water-resistant soluble self-drying acrylic resin to solve the problem that the current one-component water-based acrylic resin paint is brittle under freezing conditions, sticky and easily stained under heating conditions, and the film surface is scratch-resistant. Poor performance, insufficient dryness, and insufficient water resistance. At the same time, water is used as the solvent of the resin, and the emission of organic solvents is low, which meets the increasing environmental protection requirements.

Method used

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  • Heat and cold resisting water-soluble air-drying acrylic resin and preparing method thereof
  • Heat and cold resisting water-soluble air-drying acrylic resin and preparing method thereof
  • Heat and cold resisting water-soluble air-drying acrylic resin and preparing method thereof

Examples

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Effect test

specific Embodiment 1

[0049] A kind of hot and cold water-resistant self-drying type acrylic resin preparation step comprises as follows:

[0050] 1) Put material A into the reactor and heat up to reflux;

[0051] 2) Add material B evenly and at a constant speed, and the common dropping time is 4 hours;

[0052] 3) After the dropwise addition, keep the reflux reaction for 3 hours;

[0053] 4) Add C material, and keep warm for 3.5 hours;

[0054] 5) Remove 402Kg of 60% solvent under reduced pressure and increase temperature, then lower the temperature to below 80°C, add material D neutralizing agent to neutralize evenly, so that the pH value is 7-8;

[0055] 6) Add material E co-solvent and deionized water to dilute, disperse evenly, filter and pack.

[0056] Main technical indicators of a cold and hot water soluble self-drying acrylic resin:

[0057] Appearance: transparent or slightly opalescent viscous liquid;

[0058] Color (Fe-Co colorimetric): ≤2;

[0059] Solid content: 55±2%;

[0060]...

specific Embodiment 2

[0065] A kind of hot and cold water-resistant self-drying type acrylic resin preparation step comprises as follows:

[0066] 1) Put material A into the reactor and heat up to reflux;

[0067] 2) Add material B evenly and at a constant speed, and the common dropping time is 4 hours;

[0068] 3) After the dropwise addition, keep the reflux reaction for 3 hours;

[0069] 4) Add C material, and keep warm for 3.5 hours;

[0070] 5) Remove 365Kg of 55% solvent under reduced pressure and increase temperature, then lower the temperature to below 80°C, add material D neutralizing agent to neutralize evenly, so that the pH value is 7-8;

[0071] 6) Add material E co-solvent and deionized water to dilute, disperse evenly, filter and pack.

[0072] Main technical indicators of a cold and hot water soluble self-drying acrylic resin:

[0073] Appearance: transparent or slightly opalescent viscous liquid;

[0074] Color (Fe-Co colorimetric): ≤2;

[0075] Solid content: 50±2%;

[0076]...

specific Embodiment 3

[0081] A kind of hot and cold water-resistant self-drying type acrylic resin preparation step comprises as follows:

[0082] 1) Put material A into the reactor and heat up to reflux;

[0083] 2) Add material B evenly and at a constant speed, and the common dropping time is 4 hours;

[0084] 3) After the dropwise addition, keep the reflux reaction for 3 hours;

[0085] 4) Add C material, and keep warm for 3.5 hours;

[0086] 5) Remove 435Kg of 65% solvent under reduced pressure and increase temperature, then lower the temperature to below 80°C, add material D neutralizing agent to neutralize evenly, so that the pH value is 7-8;

[0087] 6) Add material E co-solvent and deionized water to dilute, disperse evenly, filter and pack.

[0088] Main technical indicators of a cold and hot water soluble self-drying acrylic resin:

[0089] Appearance: transparent or slightly opalescent viscous liquid;

[0090] Color (Fe-Co colorimetric): ≤2;

[0091] Solid content: 60±2%;

[0092]...

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Abstract

The invention discloses a method for preparing heat and cold resisting water-soluble air-drying acrylic resin. A monometer-phase solution B is prepared from 5-15 wt% of functional monomer, 7-15 wt% of acrylic acid or methacrylic acid, 20-45 wt% of hard monomer, 8-20 wt% of hard tenacity monomer, 15-45 wt% of soft monomer, 0.3-2 wt% of organic siloxane organosilicone monomer, 0.3-2 wt% of fluorine acrylic acid monomer, and 0.5-3 wt% of double-ethylenic-bond monomer, and the total percentage of the monomers is 100%. By the adoption of the method, the heat and cold resisting water-soluble air-drying acrylic resin is provided, and the problems that existing single-component water-soluble acrylic resin paint becomes crispy under the refrigeration condition and becomes tacky and liable to contamination under heating to cause poor membrane surface scratch resistance, dryness is insufficient, and water resistance is low are solved.

Description

technical field [0001] The present invention relates to a method for synthesizing and preparing an environment-friendly polymer compound, in particular to a one-component water-based acrylic resin paint. After the paint is coated, the paint film has superior performance under the conditions of cold and heat changes. The cold and hot water-resistant self-drying acrylic resin with the characteristics of small change, and the preparation method of the resin. Background technique [0002] With the enhancement of people's awareness of environmental protection and the improvement of environmental protection regulations, the use of volatile organic compounds (VOC) and harmful air pollutants (HAP) in traditional solvent-based coatings has become more and more restricted. focus on. Copolymers synthesized with vinyl monomers such as acrylate, methacrylate and styrene as the main raw materials are called acrylic resins, and coatings using them as film-forming base materials are called...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/06C08F220/14C08F220/18C08F220/26C08F222/10C08F230/08C08F212/08C08F220/58C08F212/12C08F220/22C09D133/08C09D125/08
CPCC08F212/08C08F220/14C09D125/08C09D133/08C08F220/18C08F220/1808C08F220/06C08F220/26C08F222/102C08F230/08C08F220/22C08F220/1804C08F220/58C08F222/1063
Inventor 戴竹先
Owner YINGDE BOTE CHEM INDAL
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