Water-based acrylic floor paint and preparation method thereof
阅读说明：本技术 水性丙烯酸地坪漆及其制备方法 (Water-based acrylic floor paint and preparation method thereof ) 是由 梁巧敏 廖位红 符思 于 2019-11-04 设计创作，主要内容包括：本发明涉及化工涂料技术领域,公开一种水性丙烯酸地坪漆,包括质量百分比的以下组分：水20％-30％；分散剂1％-2％；丙二醇0.5％-1％；阴离子表面活性剂0.1％-1％；消泡剂0.2％-1％；增稠剂0.5％-2％；PH调节剂0.1％-0.2％；钛白粉10％-20％；硫酸钡10％-20％；功能性乳液50％-60％；成膜助剂4％-5％；抗划伤助剂0.3％-0.6％；防腐剂0.1％-0.4％。本发明的水性丙烯酸地坪漆涂刷在基层(水泥地板)上时,能够最大限度的提升与基层的附着力和硬度,而且施工方便操作简单,无刺激性味道,低VOC,具有较好的耐水性和耐老化性能,只需要加少许水稀释后就可以直接用辊筒或者毛刷滚涂在水泥地板上,养护一个星期便可人行通过。(The invention relates to the technical field of chemical coatings, and discloses a water-based acrylic floor paint which comprises the following components in percentage by mass: 20% -30% of water; 1% -2% of a dispersant; 0.5 to 1 percent of propylene glycol; 0.1% -1% of anionic surfactant; 0.2 to 1 percent of defoaming agent; 0.5 to 2 percent of thickening agent; 0.1 to 0.2 percent of PH regulator; 10-20% of titanium dioxide; 10% -20% of barium sulfate; 50% -60% of functional emulsion; 4% -5% of a film-forming assistant; 0.3 to 0.6 percent of scratch-resistant auxiliary agent; 0.1 to 0.4 percent of preservative. When the water-based acrylic floor paint is coated on a base layer (a cement floor), the adhesive force and the hardness of the water-based acrylic floor paint and the base layer can be improved to the maximum extent, the water-based acrylic floor paint is convenient to construct and simple to operate, has no pungent taste, low VOC (volatile organic compounds), and good water resistance and aging resistance, can be directly coated on the cement floor by a roller or a brush after being diluted by adding a little water, and can be manually passed after being maintained for one week.)
1. The water-based acrylic floor paint is characterized by comprising the following components in percentage by mass: 20% -30% of water; 1% -2% of a dispersant; 0.5 to 1 percent of propylene glycol; 0.1% -1% of anionic surfactant; 0.2 to 1 percent of defoaming agent; 0.5 to 2 percent of thickening agent; 0.1 to 0.2 percent of PH regulator; 10-20% of titanium dioxide; 10% -20% of barium sulfate; 50% -60% of functional emulsion; 4% -5% of a film-forming assistant; 0.3 to 0.6 percent of scratch-resistant auxiliary agent; 0.1 to 0.4 percent of preservative.
2. The water-based acrylic floor paint according to claim 1, wherein the dispersant is CA2500, and the CA2500 is a mixture of sodium polyacrylate and hydrophobically modified ammonium polyacrylate.
3. The aqueous acrylic floor paint of claim 1, wherein the anionic surfactant is the American Dow wetting agent BD-109.
4. The water-based acrylic floor paint of claim 1, wherein the defoamer is a digao Tego902W defoamer.
5. The aqueous acrylic floor paint of claim 1 wherein the thickener is a U.S. Dow thickener RM 8W.
6. The water-based acrylic floor paint as claimed in claim 1, wherein the pH regulator is PH regulator AN130 of Solvay.
7. The water-based acrylic floor paint of claim 1, wherein the functional emulsion is a Badful acrylic emulsion fast drying king.
8. The water-based acrylic floor paint according to claim 1, wherein the film forming aid is Iseman film forming aid Texanol.
9. The waterborne acrylic floor paint of claim 1, wherein the scratch resistant auxiliary is American Dow
10. The method for preparing the water-based acrylic floor paint as claimed in any one of claims 1 to 9, which comprises the following steps: adding water, a dispersing agent, an anionic surfactant, a defoaming agent and a pH regulator into a production cylinder for dispersing, after dispersing for 3min, adding titanium dioxide and barium sulfate, and dispersing for 40 min; and after the fineness is detected to be qualified, continuously dispersing, adding the functional emulsion, adding the film-forming aid, the propylene glycol, the thickening agent, the scratch-resistant aid and the preservative after 15min, dispersing for 15min, and packaging and leaving the factory when the viscosity, the specific gravity, the solid content and the pH value are detected to be qualified.
Technical Field
The invention relates to the technical field of chemical coatings, in particular to a water-based acrylic floor paint and a preparation method thereof.
Background
At present, common solvent type acrylic floor coatings contain a large amount of volatile organic compounds, are not environment-friendly, have large smell and large solvent diluent consumption, have high toxicity to constructors, poor weather resistance, poor wear resistance, poor adhesion, high cost, difficult repair and the like, and seriously harm the health of human bodies in places without ventilation.
Therefore, people are developing research and development on water-based terrace coatings. The existing water-based floor coating has immature technology, and influences on coating construction such as high requirement on surface treatment of a base layer, incapability of containing pollutants such as oil and ash, low temperature in winter, high humidity in spring, poor adhesion force on a loose base layer and the like. And the problems of easy foaming, hollowing, outdoor sunlight irradiation color change, poor wear resistance, poor weather resistance, poor pollution resistance, poor corrosion resistance and the like in humid weather exist.
In view of the above, there is a need to develop a water-based acrylic floor paint with high adhesion to the base layer, high hardness, and good water resistance and aging resistance.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a water-based acrylic floor paint and a preparation method thereof. The water-based acrylic floor paint disclosed by the invention is an environment-friendly paint because the water-based acrylic floor paint does not contain an organic solvent, is relatively low in cost, easy and simple to maintain, capable of meeting the use requirements of common court floors, capable of achieving the purposes of resisting thermal expansion and cold contraction, solarization and rain, resisting treading, preventing skidding and being easy to repair, and relatively low in requirements on technology, construction and managers.
In order to achieve the purpose, the invention adopts the following technical scheme:
the water-based acrylic floor paint comprises the following components in percentage by mass: 20% -30% of water; 1% -2% of a dispersant; 0.5 to 1 percent of propylene glycol; 0.1% -1% of anionic surfactant; 0.2 to 1 percent of defoaming agent; 0.5 to 2 percent of thickening agent; 0.1 to 0.2 percent of PH regulator; 10-20% of titanium dioxide; 10% -20% of barium sulfate; 50% -60% of functional emulsion; 4% -5% of a film-forming assistant; 0.3 to 0.6 percent of scratch-resistant auxiliary agent; 0.1 to 0.4 percent of preservative.
Preferably, the dispersant is a dow's super fast dispersant CA2500, and CA2500 is a mixture of a sodium polyacrylate salt and a hydrophobically modified ammonium polyacrylate salt, which can impart excellent early water resistance, excellent tinting strength and excellent color developability to a paint film while also contributing to improvement of early rain mark resistance of the paint film. Its hydrophobic character makes it have surfactant-like properties and thus excellent pigment wetting.
The propylene glycol is macroreticular propylene glycol, so that the freezing point can be lowered, and the paint can be prevented from freezing or deteriorating at low temperature.
Preferably, the anionic surfactant is American Dow wetting agent BD-109, is a new generation of alcohol surfactant which is high in performance, does not contain APEO and is easy to biodegrade, has the advantages of excellent wetting, environmental protection, low odor, good operability, easy biodegradation, low water biotoxicity and the like, and can enable a paint sample to have a better water retention effect and better wetting and penetration.
Preferably, the defoaming agent is a Digao Tego902W defoaming agent, has very quick defoaming capability and is very effective in defoaming bubbles. It penetrates into the foam system in the form of particles to form a very thin double membrane layer, so that the penetration is further diffused, the surface tension of the foam is locally reduced, the membrane wall is thinned, and the membrane is strongly pulled by the membrane layer with large surface tension at the periphery, and finally the bubbles are broken. Has extremely high compatibility with paint samples.
Preferably, the thickener is the american dow thickener RM8W, a low odor, solvent-free, aqueous nonionic associative rheology modifier (hydrophobically modified polyurethane) that provides excellent flow and leveling, uniform film formation, gloss development, and high thickening efficiency. This thickener is designed for low odor, low VOC, non-solvent coatings. Is low viscosity liquid, is helpful for improving the production process of the coating, and has the functions of protecting glue solution, preserving water, stabilizing and suspending auxiliary agent.
Preferably, the pH regulator is a pH regulator AN130 of Solvay, has a stabilizing effect on the pH value, is beneficial to reducing the dosage of a cellulose thickener, reducing corrosion, manufacturing a low-odor coating, enabling the pigment to exert the optimal dispersion effect, having excellent color retention, improving the performance of the thickener, improving the viscosity, keeping long-term stability under the condition of alkaline bias, and having certain influence on the storage stability, the anti-putrefaction, the anti-corrosion, the viscosity and the performance of a coating film.
The titanium dioxide can better improve the covering power and whiteness of paint samples, improve the color retention, durability, thermal stability, light stability and physical and chemical stability, and ensure the stable viscosity of the emulsion paint. The filler reduces the gloss of the paint sample, plays a role of a skeleton, increases the thickness of a coating film, improves the mechanical strength, the wear resistance and the like.
Barium sulfate has narrow particle size distribution range, good dispersibility, strong chemical inertness, good stability, acid and alkali resistance, moderate hardness and high relative density, and plays an important role in improving the thickness, wear resistance, water resistance, heat resistance, surface hardness, impact resistance and the like of the coating.
Preferably, the functional emulsion is a barde acrylic emulsion queen. The fast drying agent of the Badelfu acrylic emulsion is styrene acrylic acid copolymer emulsion. The acrylic acid-methyl acrylate copolymer is a solution formed by adding styrene-acrylic acid copolymer (containing 5-15 parts of methyl acrylate, 15-30 parts of butyl acrylate, 0.3-1.0 part of acrylic acid and 15-30 parts of styrene) into a mixed solvent containing 14-30 parts of methylbenzene, 10-20 parts of butyl acetate and 5-15 parts of ethyl acetate. The seed emulsion polymerization technology is combined with the special anti-penetration technology, and the method has the characteristics of small particles, good alkali resistance of a coating film, no APEO (ammonium peroxide) and ammonia, no artificial addition of formaldehyde and the like. The emulsion has the advantages of the acrylic ester polymer: the paint has the advantages of good light resistance, weather resistance, alkali resistance, water resistance, wet washing resistance, fine appearance, strong adhesive force and good film forming property, and the water resistance, alkali resistance, hardness and chalking resistance of the paint are greatly improved due to the introduction of the styrene chain segment in the copolymer.
Preferably, the coalescent is the eastman coalescent, Texanol, which is very hydrolytically stable, has a very low freezing point, is easily incorporated into the emulsion in winter without special handling, and does not affect the stability of the coating at higher levels. The paint has strong dissolving power and high boiling point (253 plus 283 ℃), can improve the boiling point of a polymer in the paint and provide free volume, thereby providing conditions for interdiffusion and permeation of the polymer and achieving good film effect.
Preferably, the scratch resistant aid is Dow USA
Preferably, the preservative is the us dupont preservative ROCIMA 562, which enhances rapid onset of action against a broad spectrum of microorganisms and provides more stable long-term protection of the finished product without exceeding the current preservative labeling limits specified. Suitable for protecting products free of Volatile Organic Compounds (VOC) and substantially free of organic halide (AOX) contamination. Generally exhibit excellent compatibility. That is, no agglomeration is observed, as well as changes in finished product viscosity, color, gloss, film formation, or other important parameters.
The invention also discloses a preparation method of the water-based acrylic floor paint, which comprises the following steps: adding water, a dispersing agent, an anionic surfactant, a defoaming agent and a pH regulator into a production cylinder for dispersing, after dispersing for 3min, adding titanium dioxide and barium sulfate, and dispersing for 40 min; and after the fineness is detected to be qualified, continuously dispersing, adding the functional emulsion, adding the film-forming aid, the propylene glycol, the thickening agent, the scratch-resistant aid and the preservative after 15min, dispersing for 15min, and packaging and leaving the factory when the viscosity, the specific gravity, the solid content and the pH value are detected to be qualified.
Compared with the prior art, the invention has the following beneficial effects:
when the water-based acrylic floor paint is coated on a base layer (a cement floor), the adhesive force and the hardness of the water-based acrylic floor paint and the base layer can be improved to the maximum extent, the water-based acrylic floor paint is convenient to construct and simple to operate, has no pungent taste, low VOC (volatile organic compounds), and good water resistance and aging resistance, can be directly coated on the cement floor by a roller or a brush after being diluted by adding a little water, and can be manually passed after being maintained for one week.
Detailed Description
The present invention will be further described with reference to the following examples.
It should be noted that the raw materials used in the technical scheme provided by the present invention, except for the specific description, are prepared by conventional means or purchased through commercial channels.
The water-based acrylic floor paint comprises the following components in percentage by mass: 20% -30% of water; 1% -2% of a dispersant; 0.5 to 1 percent of propylene glycol; 0.1% -1% of anionic surfactant; 0.2 to 1 percent of defoaming agent; 0.5 to 2 percent of thickening agent; 0.1 to 0.2 percent of PH regulator; 10-20% of titanium dioxide; 10% -20% of barium sulfate; 50% -60% of functional emulsion; 4% -5% of a film-forming assistant; 0.3 to 0.6 percent of scratch-resistant auxiliary agent; 0.1 to 0.4 percent of preservative.
The present invention provides a specific embodiment as follows: the water-based acrylic floor paint comprises the following components in percentage by mass: 20% of water; 1% of a dispersant; 0.5 percent of propylene glycol; 0.1% of anionic surfactant; 0.2 percent of defoaming agent; 0.8% of thickening agent; 0.2% of a pH regulator; 16% of titanium dioxide; 10% of barium sulfate; 50% of functional emulsion; 0.4% of film-forming additive; 0.6 percent of scratch-resistant auxiliary agent; 0.2 percent of preservative.
The dispersant is American Dow's super fast dispersant CA2500, and CA2500 is a mixture of sodium polyacrylate and hydrophobically modified ammonium polyacrylate, so that the early water resistance, excellent tinting strength and excellent color developing performance of a paint film can be provided, and the early rain mark resistance of the paint film can be improved. Its hydrophobic character makes it have surfactant-like properties and thus excellent pigment wetting.
The propylene glycol is macroreticular propylene glycol, so that the freezing point can be lowered, and the paint can be prevented from freezing or deteriorating at low temperature.
The anionic surfactant is American Dow wetting agent BD-109, is a new generation of alcohol surfactant which is high in performance, does not contain APEO and is easy to biodegrade, has the advantages of excellent wetting, environmental protection, low odor, good operability, easiness in biodegradation, low water biotoxicity and the like, and can enable a paint sample to have a better water retention effect and better wetting and penetration.
The defoaming agent is a Digao Tego902W defoaming agent, has very quick defoaming capability and is very effective in defoaming. It penetrates into the foam system in the form of particles to form a very thin double membrane layer, so that the penetration is further diffused, the surface tension of the foam is locally reduced, the membrane wall is thinned, and the membrane is strongly pulled by the membrane layer with large surface tension at the periphery, and finally the bubbles are broken. Has extremely high compatibility with paint samples.
The thickener is American Dow thickener RM8W, is a low-odor solvent-free aqueous nonionic associative rheology modifier (hydrophobically modified polyurethane), and can provide excellent flowing and leveling properties, uniform film-forming property, gloss representation and high thickening efficiency. This thickener is designed for low odor, low VOC, non-solvent coatings. Is low viscosity liquid, is helpful for improving the production process of the coating, and has the functions of protecting glue solution, preserving water, stabilizing and suspending auxiliary agent.
The pH regulator AN130 of Solvay company has a stabilizing effect on the pH value, is beneficial to reducing the dosage of a cellulose thickener, reducing corrosion, manufacturing a low-odor coating, enabling the pigment to exert the optimal dispersion effect, has excellent color retention, improves the performance of the thickener, can improve the viscosity, can keep long-term stability under the condition of partial alkali, and has certain influence on the storage stability, the anti-rot property, the anti-corrosion property, the viscosity and the performance of a coating film.
The titanium dioxide can better improve the covering power and whiteness of paint samples, improve the color retention, durability, thermal stability, light stability and physical and chemical stability, and ensure the stable viscosity of the emulsion paint. The filler reduces the gloss of the paint sample, plays a role of a skeleton, increases the thickness of a coating film, improves the mechanical strength, the wear resistance and the like.
Barium sulfate has narrow particle size distribution range, good dispersibility, strong chemical inertness, good stability, acid and alkali resistance, moderate hardness and high relative density, and plays an important role in improving the thickness, wear resistance, water resistance, heat resistance, surface hardness, impact resistance and the like of the coating.
The functional emulsion is the quick-drying king of the Badfurant acrylic emulsion. The fast drying agent of the Badelfu acrylic emulsion is styrene acrylic acid copolymer emulsion. The acrylic acid-methyl acrylate copolymer is a solution formed by adding styrene-acrylic acid copolymer (containing 5-15 parts of methyl acrylate, 15-30 parts of butyl acrylate, 0.3-1.0 part of acrylic acid and 15-30 parts of styrene) into a mixed solvent containing 14-30 parts of methylbenzene, 10-20 parts of butyl acetate and 5-15 parts of ethyl acetate. The seed emulsion polymerization technology is combined with the special anti-penetration technology, and the method has the characteristics of small particles, good alkali resistance of a coating film, no APEO (ammonium peroxide) and ammonia, no artificial addition of formaldehyde and the like. The emulsion has the advantages of the acrylic ester polymer: the paint has the advantages of good light resistance, weather resistance, alkali resistance, water resistance, wet washing resistance, fine appearance, strong adhesive force and good film forming property, and the water resistance, alkali resistance, hardness and chalking resistance of the paint are greatly improved due to the introduction of the styrene chain segment in the copolymer.
The film forming additive is an Iseman film forming additive Texanol which has very good hydrolytic stability and very low freezing point, can be easily mixed into the emulsion without special treatment in winter, and does not influence the stability of the coating under higher content. The paint has strong dissolving power and high boiling point (253 plus 283 ℃), can improve the boiling point of a polymer in the paint and provide free volume, thereby providing conditions for interdiffusion and permeation of the polymer and achieving good film effect.
The scratch-resistant auxiliary agent is American Dow
The preservative is the American DuPont preservative ROCIMA 562, which can improve the rapid onset of action on broad-spectrum microorganisms and provide more stable long-term protection for finished products without exceeding the specified labeling limit of current preservatives. Suitable for protecting products free of Volatile Organic Compounds (VOC) and substantially free of organic halide (AOX) contamination. Generally exhibit excellent compatibility. That is, no agglomeration is observed, as well as changes in finished product viscosity, color, gloss, film formation, or other important parameters.
The preparation method of the water-based acrylic floor paint comprises the following specific steps: adding water, a dispersing agent, an anionic surfactant, a defoaming agent and a pH regulator into a production cylinder for dispersing, after dispersing for 3min, adding titanium dioxide and barium sulfate, and dispersing for 40 min; and after the fineness is detected to be qualified, continuously dispersing, adding the functional emulsion, adding the film-forming aid, the propylene glycol, the thickening agent, the scratch-resistant aid and the preservative after 15min, dispersing for 15min, and packaging and leaving the factory when the viscosity, the specific gravity, the solid content and the pH value are detected to be qualified.
The performance of the water-based acrylic floor paint prepared in the embodiment of the invention as a floor paint for cement floor construction is detected, and the concrete table is as follows:
the performance test methods are shown in the following table:
through the tests, the water-based acrylic floor paint disclosed by the invention can meet various requirements of formula design, has good adhesive force, water resistance, aging resistance and the like, and can be widely applied to ground decoration of offices, plants, warehouses, courts and the like.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.
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