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Latex for waterborne interior-wall primer and preparation method and application thereof

An interior wall primer, water-based technology, applied in the direction of primer, coating, etc., can solve the problem that emulsion is not competent for interior wall primer performance, etc., and achieves remarkable inter-layer matching effect, outstanding anti-salting effect, and penetration ability. strong effect

Inactive Publication Date: 2016-05-25
ZHUO DA NEW MATERIAL TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a water-based interior wall primer latex and its preparation method and application, aiming to solve the problem that the emulsion prepared by the existing emulsion polymerization method cannot be competent for the performance of the interior wall primer demanding questions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of latex for water-based interior wall primer, wherein, by weight percentage, comprising:

[0041] Vinyl acetate 5.1%

[0042] Ethyl methacrylate 4.0%

[0043] Butyl Acrylate 3.4%

[0044] Isooctyl Acrylate 6.5%

[0045] Acrylamide 7.7%

[0046] Pyrrole 1.0%

[0047] Morpholine 0.7%

[0048] Sodium bicarbonate 0.85%

[0049] Fatty acid esters 0.4%

[0050] Persulfate 0.15%

[0051] Deionized water 70.2%

[0052]According to the above formula, add the solvent and the polymerization distribution agent (pyrrole and morpholine) into the reactor, heat and stir, and control the temperature at 60°C. After the polymerization distribution agent is completely dissolved, add fatty acid esters and one-fifth monomer (acetic acid Vinyl ester, ethyl methacrylate, butyl acrylate, isooctyl acrylate and acrylamide) were pre-dispersed for 0.4h, the temperature was controlled at about 50°C, and a uniform emulsion was obtained in the reactor;

[0053] B. Then the temperatur...

Embodiment 2

[0059] A kind of latex for water-based interior wall primer, wherein, by weight percentage, comprising:

[0060] Vinyl acetate 8.0%

[0061] Ethyl methacrylate 6.0%

[0062] Butyl Acrylate 3.0%

[0063] Isooctyl Acrylate 2.5%

[0064] Acrylamide 2.6%

[0065] Pyrrole 1.1%

[0066] Morpholine 1.0%

[0067] Ammonia 1.00%

[0068] Citrates 0.1%

[0069] Redox initiator 0.1%

[0070] Deionized water 74.6%

[0071] According to the above formula, add the solvent and the polymerization distribution agent (pyrrole and morpholine) into the reactor, heat and stir, and control the temperature at 45°C. After the polymerization distribution agent is completely dissolved, add citric acid esters and one-fifth of the monomer ( Vinyl acetate, ethyl methacrylate, butyl acrylate, isooctyl acrylate and acrylamide) were pre-dispersed for 0.6h, the temperature was controlled at about 50°C, and a uniform emulsion was obtained in the reactor;

[0072] B. Then the emulsion in the reactor is...

Embodiment 3

[0078] A kind of latex for water-based interior wall primer, wherein, by weight percentage, comprising:

[0079] Vinyl acetate 8.1%

[0080] Ethyl methacrylate 7.0%

[0081] Butyl Acrylate 5.0%

[0082] Isooctyl Acrylate 5.0%

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PUM

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Abstract

The invention discloses latex for waterborne interior-wall primer and a preparation method and application thereof. The latex comprises, by weight, 22.1-29.9% of monomer, 1.1-2.3% of polymerization partitioning agent, 0.04-1.05% of stabilizers, 0.1-0.5% of plasticizers, 0.1-0.25% of initiators and 66.1-75.0% of solvent, wherein the monomer is a mixture of vinyl acetate, ethyl methacrylate, butyl acrylate, isooctyl acrylate and acrylamide, and the polymerization partitioning agent is a mixture of pyrrole and morpholine. The prepared latex is good in closure performance, high in adhesive force and infiltration capacity, highly resistant to alkali burnout and water, good in watertightness, outstanding in salting-out resistant effect, remarkable in interlayer collocation effect and capable of effectively avoiding the defects of poor lasting effect, instable interlayer collocation, failure in reaching the standard of VOC (volatile organic compounds) and the like when common latex is used for the primer, thereby being a good binder for preparing excellent waterborne primer.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a latex for water-based interior wall primer and a preparation method and application thereof. Background technique [0002] With the continuous deepening of the theoretical research on emulsion polymerization and the continuous improvement of the level of dairy polymers, the emulsion polymerization technology has also continued to develop, and many new branches of emulsion polymerization have been derived, and many new emulsion polymerization methods have emerged, such as inverse emulsion polymerization. , Emulsion polymerization in non-aqueous medium, soap-free emulsion polymerization, emulsion polycondensation, emulsion directional polymerization, dispersion polymerization, microemulsion ultramicroemulsion polymerization, reactive polymer gel, preparation of emulsion particles with core-shell structure, radiation emulsion polymerization, etc. . Most of these methods have been used in ...

Claims

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Application Information

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IPC IPC(8): C08F220/56C08F220/18C08F218/08C09D133/26C09D131/04C09D5/00
CPCC08F218/08C08F220/56C09D5/002C09D131/04C09D133/26C08F220/1808C08F220/18C08F220/1804
Inventor 杨卓舒郭立斌侯世军孙凯
Owner ZHUO DA NEW MATERIAL TECH GRP
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