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Latex for water-based interior wall priming paint as well as preparation method and application of latex

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: 2016-04-13
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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  • Latex for water-based interior wall priming paint as well as preparation method and application of latex

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of latex for water-based interior wall primer, wherein, by weight percentage, comprising:

[0043] Vinyl acetate 10.1%

[0044] Styrene 9.0%

[0045] Butyl Acrylate 7.4%

[0046] Pyrrole 1.1%

[0047] Fatty acid polyoxyethylene ester 0.8%

[0048] Sodium bicarbonate 1.05%

[0049] Fatty acid esters 0.3%

[0050] Persulfate 0.25%

[0051] Deionized water 70.0%

[0052]According to the above formula, add deionized water, pyrrole and fatty acid polyoxyethylene ester into the reactor, heat and stir, and control the temperature at 60°C. After the pyrrole and fatty acid polyoxyethylene ester are completely dissolved, add one-fifth of the monomer (acetic acid Vinyl ester, styrene and butyl acrylate) were pre-dispersed for 0.5h, the temperature was controlled at about 50°C, and a uniform emulsion was obtained in the reactor;

[0053] Then the temperature of the emulsion in the reactor was raised to 65°C, and a quarter of the pre-prepared 5% persulfate aqueous sol...

Embodiment 2

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

[0060] Styrene 10.6%

[0061] Isooctyl Acrylate 10.0%

[0062] Methacrylate 9.3%

[0063] Morpholine 1.1%

[0064] Hydroxypropyl Methyl Cellulose 1.2%

[0065] Ammonia 1.05%

[0066] Phosphates 0.5%

[0067] Peroxide 0.15%

[0068] Deionized water 66.1%

[0069] According to the above formula, add deionized water, morpholine, and hydroxypropyl methylcellulose into the reactor, heat and stir, and control the temperature at 65°C. After the morpholine and hydroxypropylmethylcellulose are completely dissolved, add five minutes One of the monomers (styrene, isooctyl acrylate and methacrylic acid) was pre-dispersed for 0.3h, the temperature was controlled at about 55°C, and a uniform emulsion was obtained in the reactor;

[0070] Then the temperature of the emulsion in the reactor was raised to 60°C, and a quarter of the pre-prepared 5% peroxide aqueous solution was adde...

Embodiment 3

[0076] A kind of latex for water-based interior wall primer, wherein, by weight percentage, comprising:

[0077] Methyl methacrylate 12.1%

[0078] Triethylene glycol dimethacrylate 10%

[0079] Pyrrole 0.9%

[0080] Hydroxypropyl Methyl Cellulose 0.5%

[0081] Fatty acid polyoxyethylene ester 0.5%

[0082] Sodium bicarbonate 0.06%

[0083] Ammonia 0.09%

[0084] Citrates 0.5%

[0085] Redox initiator 0.25%

[0086] Deionized water 75.0%

[0087] According to the above formula, add deionized water, pyrrole, and hydroxypropyl methylcellulose into the reactor, heat and stir, and control the temperature at 55°C. After the pyrrole and hydroxypropylmethylcellulose are completely dissolved, add one-fifth The monomers (butyl acrylate and triethylene glycol dimethacrylate) were pre-dispersed for 0.6h, the temperature was controlled at about 45°C, and a uniform emulsion was obtained in the reactor;

[0088] Then the temperature of the emulsion in the reactor was raised to 65°C...

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Abstract

The invention discloses a latex for water-based interior wall priming paint as well as a preparation method and application of the latex. The latex comprises the following components in percentage by weight: 22.1-29.9% of monomers, 1.1-2.3% of a polymerization dispersing agent, 0.04-1.05% of a stabilizer, 0.1-0.5% of a plasticizer, 0.1-0.25% of an initiator and 66.1-75.0% of a solvent. The latex is prepared by reasonably selecting the monomers with different reactivity ratios and the initiator, and is cooperated with the more highly targeted polymerization dispersing agent, so that the prepared priming paint is high in closure and adhesion, good in alkali burnout resistance and watertightness, excellent in waterproofness, outstanding in salting-out resistance effect, obvious in interlayer matching effect and high in penetration ability; the latex can effectively overcome the defects that when a common latex is used in a priming paint, a continuous effect is poor, the interlayer matching is unstable and VOC cannot meet the standards. Therefore, the latex provided by the invention is a better base stock for preparation of the excellent water-based priming paint, and can meet requirements on base stocks for the priming paint currently and even for a long time in the future.

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): C08F218/08C08F212/08C08F220/18C08F220/04C08F222/20C09D131/04C09D125/14C09D133/12
CPCC08F212/08C08F218/08C08F220/14C09D125/14C09D131/04C09D133/12C08F222/1006C08F220/1808C08F220/04C08F220/1804
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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