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Latex for waterborne interior wall primer and preparation method and application of latex for waterborne interior wall primer

An interior wall primer, water-based technology, applied in the field of coatings, can solve the problems that the emulsion is not competent for the performance of the interior wall primer

Inactive Publication Date: 2016-07-13
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

[0041] A kind of latex for water-based interior wall primer, wherein, by weight percentage, comprising:

[0042] Styrene 6.1%

[0043] Ethyl methacrylate 5.0%

[0044] Butyl Acrylate 4.4%

[0045] Isooctyl Acrylate 5.8%

[0046] Acrylamide 5.4%

[0047] Pyrrole 1.1%

[0048] Morpholine 0.9%

[0049] Sodium bicarbonate 0.75%

[0050] Fatty acid esters 0.4%

[0051] Persulfate 0.25%

[0052] Deionized water 69.0%

[0053]According to the above formula, add the solvent and 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 (benzene Ethylene, ethyl methacrylate, butyl acrylate, isooctyl acrylate and acrylamide) were pre-dispersed for 0.5h, the temperature was controlled at about 50°C, and a uniform emulsion was obtained in the reactor;

[0054] B. Then the temperature of the emulsion...

Embodiment 2

[0060] A kind of latex for water-based interior wall primer, wherein, by weight percentage, comprising:

[0061] Styrene 7.0%

[0062] Ethyl methacrylate 5.0%

[0063] Butyl acrylate 8.0%

[0064] Isooctyl Acrylate 2.0%

[0065] Acrylamide 7.1%

[0066] Pyrrole 1.5%

[0067] Morpholine 0.8%

[0068] Ammonia 1.00%

[0069] Citrates 0.5%

[0070] Redox initiator 0.1%

[0071] Deionized water 67%

[0072] 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 55°C. After the polymerization distribution agent is completely dissolved, add citric acid esters and one-fifth of the monomer ( Styrene, ethyl methacrylate, butyl acrylate, isooctyl acrylate and acrylamide) were pre-dispersed for 0.6h, the temperature was controlled at about 55°C, and a uniform emulsion was obtained in the reactor;

[0073] B. Then the temperature of the emulsion in the react...

Embodiment 3

[0079] A kind of latex for water-based interior wall primer, wherein, by weight percentage, comprising:

[0080] Styrene 5.0%

[0081] Ethyl methacrylate 6.0%

[0082] Butyl Acrylate 4.0%

[0083] Isooctyl Acrylate 3.8%

[0084] Acrylamide 3.3%

[0085] Pyrrole 0.6%

[0086] Morpholine 1.0%

[0087] Sodium bicarbonate 0.65%

[0088] Ammonia 0.40%

[0089] Phosphates 0.1%

[0090] Peroxide 0.15%

[0091] Deionized water 75.0%

[0092] According to the above formula, add the solvent and polymerization distribution agent (pyrrole and morpholine) into the reactor, heat and stir, and control the temperature at 65°C. After the polymerization distribution agent is completely dissolved, add phosphate esters and one-fifth monomer (benzene Ethylene, ethyl methacrylate, butyl acrylate, isooctyl acrylate and acrylamide) were pre-dispersed for 0.6h, the temperature was controlled at about 45°C, and a uniform emulsion was obtained in the reactor;

[0093] B. Then the temperature ...

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Abstract

The invention discloses latex for a waterborne interior wall primer and a preparation method and application of the latex for the waterborne interior wall primer.The latex is prepared from, by weight, 22.1-29.9% of monomers, 1.1-2.3% of a polymer partitioning agent, 0.04-1.05% of a stabilizing agent, 0.1-0.5% of a plasticizer, 0.1-0.25% of an initiating agent and 66.1-75.0% of a solvent, wherein the monomers are mixtures of styrene, ethyl methacrylate, butyl acrylate, iso-octyl acrylate and acrylamide, and the polymer partitioning agent is a mixture of pyrrole and morpholine.The primer prepared from the latex has the advantages of high closure performance, high adhesiveness, excellent alkali burnout resistance, excellent watertightness and water resistance, outstanding salting-out resistance, remarkable interlamination matching effects and high infiltrability, and defects of poor lasting effects, interlamination matching instability, substandard VOC (volatile organic compounds) and the like in application of normal latex to the primer are effectively avoided.Therefore, the latex is a favorable matrix for preparation of excellent waterborne primers.

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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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F220/18C08F220/56C09D125/14C09D133/08C09D133/10
CPCC08F212/08C08F220/18C08F220/1804C09D125/14C09D133/08C09D133/10C08F220/1808C08F220/56
Inventor 杨卓舒邝清林郭立斌侯世军孙凯
Owner ZHUO DA NEW MATERIAL TECH GRP
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