Acryl emulsion resin composition and aqueous coating composition comprising acryl emulsion resin prepared from the same

Abstract

The present invention relates to an acrylic emulsion resin composition and an aqueous paint composition comprising an acrylic emulsion resin prepared therefrom.

Description

Technology Field

[0001] The present invention relates to an acrylic emulsion resin composition and an aqueous paint composition comprising an acrylic emulsion resin prepared therefrom. Background Technology

[0002] Oil-based paints containing urethane resins, epoxy resins, etc., have generally been used for waterproof flooring in construction, and most waterproof flooring paints currently used in Korea are oil-based paints containing large amounts of petroleum-based solvents. Consequently, many problems arise, such as volatile organic compounds volatilizing during painting operations, causing air pollution, posing a high risk of fire, and causing odors that adversely affect the health and safety of workers.

[0003] To solve these problems, a technology using water-based paints has been proposed. For example, Korean registered patent 10-2173210 discloses a water-based paint composition comprising water, an acrylic-urethane copolymer emulsion, a fluoropolymer emulsion, a hydrophobic silica aerogel, titanium oxide, a curing agent, and a curing accelerator, and a method for forming a waterproof film using the same. However, conventional water-based paints have the problem of having inferior water resistance, waterproofing, and crack resistance.

[0004] Accordingly, there is a need to develop a water-based paint composition that is eco-friendly by not containing organic solvents, while simultaneously possessing excellent water resistance, water resistance, and crack resistance. The problem to be solved

[0005] The present invention provides a water-based paint composition that is environmentally friendly as it does not contain organic solvents, while also possessing excellent water resistance, water resistance, and crack resistance. means of solving the problem

[0006] The present invention provides an acrylic emulsion resin composition comprising a monomer mixture, a phosphate-based emulsifier, and a sulfuric acid-based emulsifier, wherein the monomer mixture comprises styrene, alkyl (meth)acrylate, hydroxyl group-containing (meth)acrylate, acrylic acid, and a silane-based monomer, and an acrylic emulsion resin prepared therefrom. Effects of the invention

[0007] The present invention provides a water-based paint composition that is environmentally friendly as it does not contain organic solvents, while simultaneously offering excellent water resistance, water resistance, and crack resistance. The water-based paint composition according to the present invention exhibits excellent water resistance, water resistance, and crack resistance, making it suitable for use as an exterior architectural paint. Specific details for implementing the invention

[0008] The present invention will be described in detail below. However, it is not limited to the following description, and each component may be modified in various ways or selectively combined as needed. Accordingly, it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0009] As used herein, “viscosity” is measured by conventional methods known in the art, for example, using a Brookfield viscometer at room temperature (25 °C). “Particle size (D50)” is measured by conventional methods known in the art, for example, using laser light scattering (LLS). “Glass transition temperature” is measured by conventional methods known in the art, for example, using thermomechanical analysis (TMA) or differential scanning calorimetry (DSC).

[0011] <Acrylic Emulsion Resin Composition>

[0012] The acrylic emulsion resin composition of the present invention comprises a monomer mixture, a phosphate-based emulsifier, and a sulfuric acid-based emulsifier.

[0014] monomer mixture

[0015] The acrylic emulsion resin composition of the present invention comprises a monomer mixture comprising styrene, alkyl (meth)acrylate, hydroxyl group-containing (meth)acrylate, acrylic acid, and a silane-based monomer.

[0016] Styrene plays a role in controlling the hardness and durability of the emulsion resin and increasing the stability of the emulsion polymerization. The styrene may be included in an amount of 14 to 24 weight%, for example, 16 to 22 weight%, based on the total weight of the acrylic emulsion resin composition. If the styrene content is below the aforementioned range, the glass transition temperature (Tg) may be lowered, causing the coating film to soften, and if it exceeds the aforementioned range, the glass transition temperature may be higher, and crack resistance may be reduced.

[0017] Alkyl (meth)acrylates impart functionality and adhesion to the coating film and serve to adjust the glass transition temperature of the acrylic emulsion resin. The alkyl (meth)acrylates may include (meth)acrylates or (meth)acrylic acid esters having linear or branched alkyl groups having 1 to 20 carbon atoms (C1-C20). For example, the alkyl (meth)acrylate having a C1-C20 alkyl group may include methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, butyl (meth)acrylate, pentyl (meth)acrylate, hexyl (meth)acrylate, ethylhexyl (meth)acrylate, heptyl (meth)acrylate, octyl (meth)acrylate, nonyl (meth)acrylate, decyl (meth)acrylate, undecyl (meth)acrylate, dodecyl (meth)acrylate, etc. These may be used alone or in a mixture of two or more. For example, the alkyl (meth)acrylate may include butyl (meth)acrylate.

[0018] The above alkyl (meth)acrylate may be included in an amount of 19 to 29 weight%, for example, 21 to 27 weight%, based on the total weight of the acrylic emulsion resin composition. If the content of the alkyl (meth)acrylate is less than the aforementioned range, flexibility may be insufficient and crack resistance may be reduced, and if it exceeds the aforementioned range, the glass transition temperature may be lowered and the coating film may soften.

[0019] Hydroxyl group-containing (meth)acrylates are hydrophilic monomers that act as emulsifiers. The hydroxyl group-containing (meth)acrylates may include C1-C20 alkyl group-containing (meth)acrylates having hydroxyl groups, and C5-C20 cycloalkyl group-containing (meth)acrylates having hydroxyl groups. For example, the above hydroxyl group-containing (meth)acrylate may include 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, 6-hydroxyhexyl (meth)acrylate, 1,4-cyclohexanedimethanol mono(meth)acrylate, chloro-2-hydroxypropyl (meth)acrylate, diethylene glycol mono(meth)acrylate, etc. These may be used alone or in a mixture of two or more. As an example, the above hydroxyl group-containing (meth)acrylate may include 2-hydroxyethyl (meth)acrylate.

[0020] The above hydroxyl group-containing (meth)acrylate may be included in an amount of 0.01 to 4 weight%, for example, 0.1 to 1 weight%, based on the total weight of the acrylic emulsion resin composition. If the content of the hydroxyl group-containing (meth)acrylate is less than the aforementioned range, the adhesion of the coating film may be reduced or the stability during acrylic emulsion resin synthesis may be reduced, and if it exceeds the aforementioned range, the viscosity of the composition may become excessively high during acrylic emulsion resin synthesis.

[0021] Acrylic acid contains carboxyl groups to improve stability and miscibility with pigments during resin synthesis, and acts as an emulsifier as a hydrophilic monomer to enable water dispersion of the manufactured resin. The acrylic acid may be included in an amount of 0.01 to 4 weight%, for example, 0.1 to 2 weight%, based on the total weight of the acrylic emulsion resin composition. If the content of acrylic acid is below the aforementioned range, the synthesis stability may be reduced, making it difficult to polymerize the acrylic emulsion resin, and if it exceeds the aforementioned range, the number of carboxyl groups in the coating film may become excessive, which may reduce water resistance.

[0022] Silane monomers serve to improve water resistance. The silane monomers may include methyltrimethoxysilane, ethyltrimethoxysilane, isobutyltrimethoxysilane, n-hexyltrimethoxysilane, n-decyltrimethoxysilane, n-hexadecyltrimethoxysilane, 3-methacryloxypropyltrimethoxysilane, methyltriethoxysilane, cyclohexylmethyldimethoxysilane, dimethyldiethoxysilane, diphenyldiethoxysilane, trimethylmethoxysilane, trimethylethoxysilane, aminopropyltriethoxysilane, etc. These may be used alone or in a mixture of two or more. For example, the silane monomers may include 3-methacryloxypropyltrimethoxysilane (MPTS), methyltrimethoxysilane (MTMS), or a mixture thereof.

[0023] The above silane monomer may be included in an amount of 0.01 to 8 weight%, for example, 0.03 to 2 weight%, based on the total weight of the acrylic emulsion resin composition. If the content of the silane monomer is less than the aforementioned range, water resistance may be reduced, and if it exceeds the aforementioned range, synthesis stability and storage stability may be reduced.

[0025] emulsifier

[0026] The acrylic emulsion resin composition of the present invention comprises a phosphate-based emulsifier and a sulfuric acid-based emulsifier. The phosphate-based emulsifier plays a role in improving adhesion by easily forming covalent bonds between the terminal phosphate groups and the surface of the substrate, and the sulfuric acid-based emulsifier plays a role in controlling the particle size and solid content of the emulsion resin. By mixing the two types of emulsifiers mentioned above, the acrylic emulsion resin composition of the present invention can improve water resistance and water resistance while simultaneously ensuring storage stability.

[0027] Polyoxyethylene tridecyl ether phosphate ammonium salt, alkyl polyphosphate, polyoxyethylene alkyl ether phosphate, dialkyl phosphate, monoalkyl phosphate, ethoxylated alkyl phosphate, fluorophosphate, etc., may be used as the above-mentioned phosphate-based emulsifier. These may be used alone or in a mixture of two or more. For example, polyoxyethylene tridecyl ether phosphate ammonium salt may be used as the phosphate-based emulsifier.

[0028] The above phosphate-based emulsifier may be included in an amount of 0.01 to 3 weight%, for example 0.01 to 2 weight%, or for other examples 0.1 to 1 weight%, based on the total weight of the acrylic emulsion resin composition. If the content of the phosphate-based emulsifier is less than the aforementioned range, stability or storage stability may be reduced during the synthesis of the acrylic emulsion resin, and if it exceeds the aforementioned range, the water resistance of the coating film may be reduced.

[0029] The above sulfuric acid-based emulsifiers include ammonium salts of α-sulfo-ω-[1-(hydroxymethyl)-2-(2-propenyloxy)ethoxy]-poly(oxy-1,2-ethanediyl), (C=11)-rich and (C=10~14)-branched alkyl ethers, ammonium salts, sodium lauryl sulfate (SLS), sodium laureth sulfate (SLES), linear alkylbenzene sulfonate (LAS), alpha olefin sulfonate (AOS), petroleum sulfonate, sulfated ricinoleate, Triethanolamine sulfate (TEA-Sulfate) and the like can be used. These can be used alone or in a mixture of two or more. For example, an ammonium salt of α-sulfo-ω-[1-(hydroxymethyl)-2-(2-propenoxy)ethoxy]-poly(oxy-1,2-ethanediyl) can be used as a sulfuric acid-based emulsifier.

[0030] The above sulfuric acid-based emulsifier may be included in an amount of 0.01 to 4 weight%, for example 0.01 to 2 weight%, or for other examples 0.1 to 1 weight%, based on the total weight of the acrylic emulsion resin composition. If the content of the sulfuric acid-based emulsifier is less than the aforementioned range, the synthesis stability may be reduced, and if it exceeds the aforementioned range, the water resistance may be reduced.

[0032] additives

[0033] The acrylic emulsion resin composition of the present invention may additionally include additives commonly used in the manufacture of emulsions. The said additives may include, for example, one or more selected from the group consisting of polymerization initiators, core emulsion resins, buffers, neutralizing agents, preservatives, defoaming agents, and solvents.

[0034] The polymerization initiator is a component that initiates emulsion polymerization and is not particularly limited as long as it is a substance that decomposes upon heat to generate radicals. Ammonium persulfate, potassium persulfate, sodium bisulfite, etc., may be used as the polymerization initiator. The core emulsion resin functions to improve the synthetic stability of the resin, and methacrylic acid-2-ethylhexyl acrylate-styrene polymer, etc., may be used as the core emulsion resin. The buffer is used to control pH, ionic strength, etc., and sodium bicarbonate, etc., may be used. The neutralizing agent is a component that controls the pH of the prepared acrylic emulsion, and ammonium hydroxide, ammonia, sodium hydroxide, potassium hydroxide, lithium hydroxide, etc., may be used as the neutralizing agent. 1,2-benzisothiazol-3(2H)-one, etc. can be used as a preservative, and wax (e.g., modified wax in hydrocarbon oil), etc., can be used as an antifoaming agent. The solvent may be water, for example, deionized water, pure water, ultrapure water, distilled water, etc., as a dispersion medium. The content of the solvent may be appropriately adjusted considering the fluidity, viscosity, etc. of the composition.

[0036] The method for preparing an acrylic emulsion resin from the acrylic emulsion resin composition of the present invention is not particularly limited. For example, the acrylic emulsion resin may be prepared by adding an emulsifier to distilled water, raising the temperature to 85°C, adding half of a polymerization initiator dropwise for 10 minutes, adding a buffer, maintaining the temperature at 85°C for 5 minutes, adding a monomer mixture dropwise for 3.5 hours, adding half of a polymerization initiator dropwise for 60 minutes, maintaining the temperature at 85°C for 60 minutes, cooling to 50°C or lower, adding a neutralizing agent dropwise, maintaining the temperature for 10 minutes, and adding a preservative and an antifoaming agent.

[0037] The above acrylic emulsion resin may have a solid content of 45 to 55 weight%, for example, 48 to 53 weight%, a viscosity (25 ℃) of 25 to 300 cPs, for example, 30 to 100 cPs, a pH of 6.5 to 9.5, for example, 7.6 to 8.6, an average particle size (D50) of 180 to 320 nm, for example, 190 to 250 nm, a glass transition temperature of -20 to 10 ℃, for example, -12 to 5 ℃, and a minimum film forming temperature (MFFT) of -10 to 25 ℃, for example, 0 to 20 ℃. If the solid content of the above acrylic emulsion resin deviates from the aforementioned range, the durability of the coating film may be reduced; if the viscosity (25°C) deviates from the aforementioned range, it may affect the viscosity of the paint and reduce workability; if the pH deviates from the aforementioned range, the storage stability of the paint may be reduced; if the average particle size deviates from the aforementioned range, the crack resistance of the paint may be reduced; if the glass transition temperature deviates from the aforementioned range, it may affect the softenability of the coating film; and if the minimum film forming temperature (MFFT) deviates from the aforementioned range, it may affect the softenability of the coating film.

[0039] Water-based paint composition

[0040] The aqueous paint composition of the present invention comprises an acrylic emulsion resin prepared from the aforementioned acrylic emulsion resin composition. Based on the total weight of the aqueous paint composition, the acrylic emulsion resin may be included in an amount of 23 to 33 weight%, for example, 25 to 31 weight%. If the content of the acrylic emulsion resin is less than the aforementioned range, paint properties such as film softening and washability may be reduced, and if it exceeds the aforementioned range, crack resistance and storage stability may be reduced.

[0041] The aqueous paint composition according to the present invention may further include a hollow emulsion resin. In this case, the hiding rate can be further increased.

[0042] The hollow emulsion resin may be a hollow acrylic emulsion resin. For example, the hollow emulsion resin may be prepared from an acrylic emulsion composition comprising butyl prop-2-enoate, methyl 2-methylprop-2-enoate, 2-methylprop-2-enoic acid, and styrene.

[0043] The above hollow emulsion resin may have an average particle size (D50) of 300 to 850 nm, for example, 450 to 650 nm, a viscosity (25 °C) of 400 cps or less, for example, 100 to 300 cps, and a non-volatile content (150 °C x 30 min) of 30 to 40%, for example, 35 to 39%. If the average particle size of the above hollow emulsion resin deviates from the aforementioned range, crack resistance may be reduced, if the viscosity (25 °C) deviates from the aforementioned range, workability may be reduced, and if the non-volatile content (150 °C x 30 min) deviates from the aforementioned range, it may affect the paint opacity.

[0044] Based on the total weight of the above water-based paint composition, the hollow emulsion resin may be included in an amount of 5 to 15 weight%, for example, 8 to 12 weight%. If the content of the hollow emulsion resin is less than the aforementioned range, the opacity may be lowered, and if it exceeds the aforementioned range, the opacity may be higher, but the crack resistance may be reduced when the paint is applied.

[0045] For example, the acrylic emulsion resin and the hollow emulsion resin may be mixed and used in a weight ratio of 1.5 to 7:1, for example, 2 to 4:1. If the mixing ratio of the acrylic emulsion resin to the hollow emulsion resin is less than the aforementioned range, water resistance and water resistance may be reduced, and if it exceeds the aforementioned range, the opacity and crack resistance may be reduced.

[0046] The aqueous paint composition according to the present invention may further include, as needed, additives commonly used in the relevant technical field, such as pigments, antifreeze agents, thickeners, emulsifiers, dispersants, defoaming agents, disinfectants, pH adjusters, preservatives, solvents, and co-modifiers.

[0048] The present invention will be explained in more detail through the following examples. However, the following examples are intended only to aid in understanding the present invention, and the scope of the present invention is not limited to these examples in any way.

[0050] [Preparation Example 1-10: Preparation of Acrylic Emulsion Resin]

[0051] According to the compositions listed in Tables 1 and 2 below, a core emulsion resin and an emulsifier were added to distilled water and heated to 85°C. Half of the polymerization initiator was added dropwise over 10 minutes, followed by the addition of a buffer and maintaining the temperature at 85°C for 5 minutes. Subsequently, monomers were added dropwise over 3.5 hours, followed by the addition of half of the polymerization initiator over 60 minutes, and the temperature was maintained at 85°C for 60 minutes. Afterward, the temperature was cooled to 50°C or lower, a neutralizing agent was added dropwise and maintained for 10 minutes, and a preservative and an antifoaming agent were added to prepare the acrylic emulsion resin of each preparation example. The physical properties of the acrylic emulsion resin of each preparation example are listed in Tables 1 and 2 below.

[0053]

[0054]

[0056] Phosphate-based emulsifier: Polyoxyethylene tridecyl ether phosphate ammonium salt (Rhodafac® RS610 / A-25E, solids 25%, Solvey)

[0057] Sulfuric acid-based emulsifier: Ammonium salt of α-sulfo-ω-[1-(hydroxymethyl)-2-(2-propenyloxy)ethoxy]-poly(oxy-1,2-ethanediyl) (α-Sulfo-ω-[1-(hydroxymethyl)-2-(2-propenyloxy)ethoxy]poly(oxy-1,2-ethanediyl), (C=11)-rich and (C=10~14)-branched alkyl ethers, ammonium salts, solid content 26%, REASOAP SR-1025, ADEKA)

[0058] SM: Styren

[0059] BA: Butyl acrylate

[0060] 2-EHA: 2-hydroxyethylacrylate

[0061] 2-HEMA: 2-hydroxyethyl methacrylate

[0062] AA: Acrylic acid

[0063] MAA: Methacryl acid

[0064] MPTS: [3-Methacryloxy)propyl] trimethoxy silane

[0065] MTMS: Methyltrimethoxysilane

[0066] Polymerization initiator: APS (Ammonium persulfate)

[0067] Emulsion resin for core: Methacrylic acid-2-ethylhexyl acrylate-styrene polymer (acid value 98, Tg 2 ℃, solid content 33 wt%, DI water 67 wt%)

[0068] Buffer: NaHCO3

[0069] Neutralizing agent: NH4OH

[0070] Preservative: 1,2-Benzisothiazol-3(2H)-one

[0071] Antifoam: Modified wax in Hydrocarbon Oil

[0073] [Experimental Example 1-13: Preparation of Water-based Paint Composition]

[0074] Water-based paint compositions for each experimental example were prepared according to Tables 3 and 4 below.

[0076]

[0077]

[0079] Acrylic emulsion resin 1: Acrylic emulsion resin of Preparation Example 1

[0080] Acrylic emulsion resin 2: Acrylic emulsion resin of Preparation Example 2

[0081] Acrylic emulsion resin 3: Acrylic emulsion resin of Preparation Example 3

[0082] Acrylic emulsion resin 4: Acrylic emulsion resin of Preparation Example 4

[0083] Acrylic emulsion resin 5: Acrylic emulsion resin of Preparation Example 5

[0084] Acrylic emulsion resin 6: Acrylic emulsion resin of Preparation Example 6

[0085] Acrylic emulsion resin 7: Acrylic emulsion resin of Preparation Example 7

[0086] Acrylic emulsion resin 8: Acrylic emulsion resin of Preparation Example 8

[0087] Acrylic emulsion resin 9: Acrylic emulsion resin of Preparation Example 9

[0088] Acrylic emulsion resin 10: Acrylic emulsion resin of Preparation Example 10

[0089] Hollow emulsion resin: Hollow emulsion resin prepared from an acrylic emulsion (butyl prop-2-enoate, methyl 2-methylprop-2-enoate, 2-methylprop-2-enoic acid, styrene) (average particle size (D50) 575 nm, viscosity (25 ℃) 180 cPs, non-volatile content (150 ℃ x 30 min) 37.4 wt%)

[0090] Pigment: TiO2

[0091] Preservative: ACTICIDE BW-10

[0092] Jo Yong-je: TEXANOL

[0093] Antifoam: Modified wax in Hydrocarbon Oil (Substances not classified under the Occupational Safety and Health Act article 104)

[0094] Thickener: POLYURETHANE THICKENER

[0095] Emulsifier: Polyoxyethylene polyoxypropylene alkyl ether

[0096] Antifreeze: PROPYLENE GLYCOL

[0097] Dispersant: 2-Propenoic acid homopolymer sodium salt

[0098] pH regulator: MONOETHANOLAMINE

[0100] [Physical Property Evaluation]

[0101] The physical properties of the aqueous paint compositions of each experimental example were measured by the following method, and the results are shown in Tables 5 and 6 below.

[0103] Concealment (100 µm, 200 µm)

[0104] The aqueous paint composition of each experimental example was applied to a opacity of 100 μm and 200 μm on a opacity sheet, and after drying, each opacity was measured.

[0106] coloring

[0107] The aqueous paint composition of each experimental example was applied to a opaque paper (wet film thickness 250 μm), and after drying, the coloring power was measured using a color computer.

[0109] water resistance

[0110] A coating film (250 μm (10 mil)) was formed on a glass specimen using the water-based paint composition of each experimental example, and after drying the coating film, it was immersed in clean water to check the appearance of the coating film and whether it peeled off, thereby evaluating water resistance. The degree of softening of the coating film and glass adhesion were observed visually and evaluated on a 5-point scale (1 (worst) ↔ 5 (best)).

[0112] waterproof

[0113] A coating film (250 μm (10 mil)) was formed on a glass specimen using the water-based paint composition of each experimental example, a pH test paper was placed under the dried coating film, a syringe filled with water was placed on the coating film, and the time it took for the coating film to be punctured and the water to seep into the pH test paper was measured.

[0115] Freezing stability

[0116] After storing the aqueous paint composition of each experimental example in four cycles of -10 ℃ * 8 hours ↔ 25 ℃ * 8 hours, the change in viscosity was checked.

[0118]

[0119]

[0121] As shown in Tables 5 and 6 above, the aqueous paint composition of the present invention (Experimental Examples 1-5) using the acrylic emulsion resin (acrylic emulsion resin 1-3) according to the present invention exhibited excellent physical properties across all measured items. On the other hand, the aqueous paint compositions of Experimental Examples 6-12 using an acrylic emulsion resin (acrylic emulsion resin 4-10) prepared from a composition that does not contain one or more of a phosphate-based emulsifier, a sulfuric acid-based emulsifier, or the monomers of the present invention, and Experimental Example 13 which does not contain a hollow emulsion resin, exhibited inferior physical properties across all measured items compared to Experimental Examples 1-5.

Claims

Claim 1 An acrylic emulsion resin composition comprising a monomer mixture, a phosphate-based emulsifier, and a sulfuric acid-based emulsifier, wherein the monomer mixture comprises styrene, alkyl (meth)acrylate, hydroxyl group-containing (meth)acrylate, acrylic acid, and a silane-based monomer. Claim 2 An acrylic emulsion resin composition according to claim 1, comprising, based on the total weight of the acrylic emulsion resin composition, 14 to 24 weight% of the styrene, 19 to 29 weight% of the alkyl (meth)acrylate, 0.01 to 4 weight% of the hydroxyl group-containing (meth)acrylate, 0.01 to 4 weight% of the acrylic acid, 0.01 to 8 weight% of the silane monomer, 0.01 to 3 weight% of the phosphate-based emulsifier, and 0.01 to 4 weight% of the sulfuric acid-based emulsifier. Claim 3 In claim 1, the phosphate-based emulsifier comprises one or more selected from the group consisting of polyoxyethylene tridecyl ether phosphate ammonium salt, alkyl polyphosphate, polyoxyethylene alkyl ether phosphate, dialkyl phosphate, monoalkyl phosphate, ethoxylated alkyl phosphate, and fluorophosphate, and the sulfate-based emulsifier comprises α-sulfo-ω-[1-(hydroxymethyl)-2-(2-propenoxy)ethoxy]-poly(oxy-1,2-ethanediyl). An acrylic emulsion resin composition comprising one or more selected from the group consisting of ammonium salts (α-Sulfo-ω-[1-(hydroxymethyl)-2-(2-propenyloxy)ethoxy]poly(oxy-1,2-ethanediyl), (C=11)-rich and (C=10~14)-branched alkyl ethers, ammonium salts), sodium lauryl sulfate (SLS), sodium laureth sulfate (SLES), linear alkylbenzene sulfonate (LAS), alpha olefin sulfonate (AOS), petroleum sulfonate, sulfated ricinoleate, and triethanolamine sulfate (TEA-Sulfate). Claim 4 An acrylic emulsion resin prepared from an acrylic emulsion resin composition of any one of claims 1 to 3. Claim 5 An acrylic emulsion resin according to claim 4, wherein the solid content of the acrylic emulsion resin is 45 to 55 weight%, the viscosity (25 ℃) is 25 to 300 cPs, the pH is 6.5 to 9.5, the average particle size (D50) is 180 to 320 nm, the glass transition temperature is -20 to 10 ℃, and the minimum film forming temperature (MFFT) is -10 to 25 ℃. Claim 6 A water-based paint composition comprising the acrylic emulsion resin and hollow emulsion resin of claim 4. Claim 7 In claim 6, an aqueous paint composition comprising 23 to 33 weight% of the acrylic emulsion resin and 5 to 15 weight% of the hollow emulsion resin based on the total weight of the aqueous paint composition. Claim 8 A water-based paint composition according to claim 6, wherein the mixing ratio of the acrylic emulsion resin and the hollow emulsion resin is 1.5 to 7:1 by weight. Claim 9 A water-based paint composition according to claim 6, wherein the average particle size (D50) of the hollow emulsion resin is 300 to 850 nm, the viscosity (25 ℃) is 400 cps or less, and the non-volatile content (150 ℃ x 30 min) is 30 to 40%.

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