CN113817378A

CN113817378A - Emulsion paint, modified zinc ricinoleate aqueous solution and preparation method thereof

Info

Publication number: CN113817378A
Application number: CN202111354378.8A
Authority: CN
Inventors: 王�忠; 应慧春
Original assignee: Hainan Sequoia Creation Co ltd
Current assignee: Hainan Sequoia Creation Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2021-12-21

Abstract

The invention provides a latex paint, which comprises: 20-40 parts by weight of acrylic emulsion; 10-20 parts of plant composite liquid; 1-5 parts of a film-forming assistant; 2-5 parts by weight of modified zinc ricinoleate aqueous solution; 25-45 parts by weight of an inorganic filler; 5-15 parts of water; the modified zinc ricinoleate aqueous solution comprises: zinc ricinoleate, a surfactant, an amino acid, 2-hydroxyphosphonoacetic acid, sodium 2-phosphonobutane-1, 2, 4-tricarboxylate, polyaspartic acid, an alkali metal hydroxide and water. Compared with the prior art, the modified zinc ricinoleate aqueous solution is used as the raw material, the modified zinc ricinoleate aqueous solution has high odor removal performance and high stability, and meanwhile, the latex paint is more environment-friendly due to the addition of the plant composite liquid, can automatically purify the space environment and eliminate odor, and has excellent odor removal and bacteriostasis functions, so that the problem of the odor in the indoor space can be well solved.

Description

Emulsion paint, modified zinc ricinoleate aqueous solution and preparation method thereof

Technical Field

The invention belongs to the technical field of coatings, and particularly relates to an emulsion paint and a preparation method thereof, and a modified zinc ricinoleate aqueous solution and a preparation method thereof.

Background

Latex paint is commonly known as latex paint, and is a large class of synthetic resin emulsion paint represented by acrylate copolymer emulsion. The emulsion paint is water dispersible paint, which is prepared by grinding and dispersing filler and adding various auxiliary agents, and is widely applied to wall paint, including decoration and protection of inner walls and outer walls.

With the development of economy and the improvement of quality of life, the requirements of people on indoor space environment are higher and higher. For emulsion paints used for interior walls, there is a demand for not only the environmental protection properties of the paint itself but also other properties besides decoration. For example, in the daily life process, unpleasant smells (such as smelling of strong eggs, smelling of toilets, fishy smell and the like) can be generated, the life of people is seriously affected, and if the interior wall latex paint can rapidly remove the smell in the space and ensure the freshness of indoor air, the application range of the latex paint is greatly improved.

Disclosure of Invention

In view of the above, the technical problem to be solved by the present invention is to provide a latex paint capable of automatically purifying space environment and eliminating peculiar smell, a preparation method thereof, a modified zinc ricinoleate aqueous solution and a preparation method thereof.

The invention provides a latex paint, which comprises:

the modified zinc ricinoleate aqueous solution comprises: zinc ricinoleate, a surfactant, an amino acid, 2-hydroxyphosphonoacetic acid, sodium 2-phosphonobutane-1, 2, 4-tricarboxylate, polyaspartic acid, an alkali metal hydroxide and water;

the mass ratio of the zinc ricinoleate, the surfactant, the amino acid, the 2-hydroxyphosphonoacetic acid, the 2-phosphonobutane-1, 2, 4-sodium tricarboxylate, the polyaspartic acid, the alkali metal hydroxide and the water is (3-5): (9-15): (1-5): (3-5): (1-3): (1-3): (0.5-1): (60-80).

Preferably, the surfactant is selected from one or more of APG, OP-10 and TX-10;

the amino acid is selected from one or more of arginine, lysine and histidine;

the alkali metal hydroxide is selected from sodium hydroxide;

the modified zinc ricinoleate aqueous solution preferably further comprises a preservative; the mass ratio of the zinc ricinoleate to the preservative is preferably (3-5): (0.1 to 1).

Preferably, the acrylic emulsion is selected from one or more of styrene-acrylic emulsion, pure acrylic emulsion and silicone-acrylic emulsion;

the film-forming assistant is selected from one or more of dipropylene glycol butyl ether, dipropylene glycol methyl ether and propylene glycol methyl ether acetate;

the inorganic filler is selected from nano titanium dioxide and/or calcium carbonate.

Preferably, the inorganic filler is selected from nano titanium dioxide and calcium carbonate; the mass ratio of the nano titanium dioxide to the calcium carbonate is (5-17): (20-30).

Preferably, the plant composite liquid comprises wintergreen extracting solution, sage extracting solution, rosemary extracting solution, yucca extracting solution, eucalyptus oil, citronella oil, solubilizer and water; the wintergreen extracting solution, the sage extracting solution, the rosemary extracting solution, the yucca extracting solution, the eucalyptus oil, the citronella oil, the solubilizer and the water are mixed according to a mass ratio of 1: (0.5-0.8): (0.5-0.8): (0.4-0.6): (0.1-0.3): (0.1-0.3): (0.2-0.6): (3-4).

Preferably, the wintergreen extracting solution is obtained by extracting wintergreen by an alcohol-water solution, removing an alcohol solvent and diluting by water;

the solid content of the sage extract is more than or equal to 10 percent; the pH value of the sage extract is 3-9;

the effective content of the rosemary extract is more than or equal to 5 percent; the pH value of the rosemary extract is 4-8;

the content of effective substances in the yucca extracting solution is 3-8%.

Preferably, the plant composite liquid also comprises a bactericide; the mass ratio of the bactericide to the wintergreen extracting solution is (0.1-0.3): 1.

preferably, the latex paint further comprises: 0.1-1 part by weight of a defoaming agent; 0.1-1 part by weight of a dispersant; 0.01-0.03 part by weight of a mildew-proof bactericide; 0.1-1 part by weight of a thickener;

the defoaming agent is selected from organic silicon defoaming agents; the dispersing agent is selected from one or more of potassium hexametaphosphate, a dispersing agent 5040 and BYK-190; the mildew-proof bactericide is selected from a nano-silver bactericide; the thickening agent is selected from one or more of fumed silica, hydroxypropyl methyl cellulose and hydroxyethyl cellulose.

The invention also provides a modified zinc ricinoleate aqueous solution, which comprises the following components in percentage by weight: zinc ricinoleate, a surfactant, an amino acid, 2-hydroxyphosphonoacetic acid, sodium 2-phosphonobutane-1, 2, 4-tricarboxylate, polyaspartic acid, an alkali metal hydroxide and water;

The invention also provides a preparation method of the modified zinc ricinoleate aqueous solution, which comprises the following steps:

mixing and stirring zinc ricinoleate, a surfactant, amino acid and water, adding 2-hydroxyphosphonoacetic acid, 2-phosphonic acid butane-1, 2, 4-sodium tricarboxylate and polyaspartic acid, continuously stirring, and adding an alkali metal hydroxide for emulsification to obtain a modified zinc ricinoleate aqueous solution.

The invention provides a latex paint, which comprises: 20-40 parts by weight of acrylic emulsion; 10-20 parts of plant composite liquid; 1-5 parts of a film-forming assistant; 2-5 parts by weight of modified zinc ricinoleate aqueous solution; 25-45 parts by weight of an inorganic filler; 5-15 parts of water; the modified zinc ricinoleate aqueous solution comprises: zinc ricinoleate, a surfactant, an amino acid, 2-hydroxyphosphonoacetic acid, sodium 2-phosphonobutane-1, 2, 4-tricarboxylate, polyaspartic acid, an alkali metal hydroxide and water; the mass ratio of the zinc ricinoleate, the surfactant, the amino acid, the 2-hydroxyphosphonoacetic acid, the 2-phosphonobutane-1, 2, 4-sodium tricarboxylate, the polyaspartic acid, the alkali metal hydroxide and the water is (3-5): (9-15): (1-5): (3-5): (1-3): (1-3): (0.5-1): (60-80). Compared with the prior art, the modified zinc ricinoleate aqueous solution is used as the raw material, the modified zinc ricinoleate aqueous solution has high odor removal performance and high stability, and meanwhile, the latex paint is more environment-friendly due to the addition of the plant composite liquid, can automatically purify the space environment and eliminate odor, and has excellent odor removal and bacteriostasis functions, so that the problem of the odor in the indoor space can be well solved.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a modified zinc ricinoleate aqueous solution, which comprises the following components: zinc ricinoleate, a surfactant, an amino acid, 2-hydroxyphosphonoacetic acid, sodium 2-phosphonobutane-1, 2, 4-tricarboxylate, polyaspartic acid, an alkali metal hydroxide and water;

the mass ratio of the zinc ricinoleate, the surfactant, the amino acid, the 2-hydroxyphosphonoacetic acid, the 2-phosphonobutane-1, 2, 4-sodium tricarboxylate, the polyaspartic acid, the alkali metal hydroxide and the water is preferably (3-5): (9-15): (1-5): (3-5): (1-3): (1-3): (0.5-1): (60-80), more preferably (3.5-4.5): (10-14): (2-4): (3-5): (1-3): (1-3): (0.5-1): (60-75), and more preferably (3.5-4.5): (11-13): (2.5-3.5): (3.5-4.5): (1.5-2.5): (1-2): (0.6-0.8): (60 to 70), most preferably 4: 12: 3: 4: 2: 1: 0.7: 63.

the zinc ricinoleate is powdery, has excellent odor removal performance, is widely applied to the fields of garbage deodorization and the like, has low toxicity, is safe and environment-friendly; but the zinc ricinoleate is insoluble in water, which severely limits the use of the zinc ricinoleate, and the zinc ricinoleate cannot be stably stored in water only by a solubilizer and an emulsifier.

Wherein, the surfactant is preferably one or more of APG, OP-10 and TX-10.

The amino acid is preferably a water-soluble amino acid, more preferably one or more of arginine, lysine and histidine.

The alkali metal hydroxide is preferably sodium hydroxide.

In the present invention, the aqueous solution of modified zinc ricinoleate preferably further comprises a preservative; the mass ratio of the zinc ricinoleate to the preservative is preferably (3-5): (0.1 to 1), more preferably (3.5 to 4.5): (0.1-0.8), preferably (3.5-4.5): (0.2 to 0.5), most preferably 4: 0.3; the type of the preservative is preferably phenoxyethanol.

The invention also provides a preparation method of the modified zinc ricinoleate aqueous solution, which comprises the following steps: mixing and stirring zinc ricinoleate, a surfactant, amino acid and water, adding 2-hydroxyphosphonoacetic acid, 2-phosphonic acid butane-1, 2, 4-sodium tricarboxylate and polyaspartic acid, continuously stirring, and adding an alkali metal hydroxide for emulsification to obtain a modified zinc ricinoleate aqueous solution.

Wherein, the sources of all raw materials are not specially limited and can be sold in the market; the zinc ricinoleate, the surfactant, the amino acid, the water, the 2-hydroxyphosphonoacetic acid, the sodium 2-phosphonobutane-1, 2, 4-tricarboxylate, the polyaspartic acid and the alkali metal hydroxide are the same as those described above, and are not described again.

In the invention, zinc ricinoleate, a surfactant and amino acid are preferably mixed and stirred in water; the mixing and stirring speed is preferably 500-600 r/min; the mixing and stirring time is preferably 20-50 min, and more preferably 30-40 min; so that the zinc ricinoleate is fully wetted and dispersed.

Then adding 2-hydroxyphosphonoacetic acid, 2-phosphonic acid butane-1, 2, 4-sodium tricarboxylate and polyaspartic acid, and continuing stirring; the rotation speed of the continuous stirring is preferably 800-1000 rpm; the continuous stirring time is preferably 5-20 min, and more preferably 10-15 min.

After continuously stirring, preferably reducing the stirring speed, slowly adding alkali metal hydroxide, and emulsifying; the stirring speed is preferably reduced to 300-500 revolutions per minute; the rotation speed of the emulsification is preferably 3000-5000 revolutions per minute, and more preferably 4000 revolutions per minute; the emulsifying time is preferably 2-8 min, more preferably 4-6 min, and most preferably 5 min.

Finally, preferably adding a preservative, and continuously stirring to obtain a modified zinc ricinoleate aqueous solution; the time for continuing stirring is preferably 10-30 min, more preferably 15-25 min, and still more preferably 20 min.

The invention also provides a latex paint, which comprises:

The latex paint provided by the invention takes acrylic emulsion as a film forming substance; the content of the acrylic emulsion is preferably 25-40 parts by weight; the solid content of the acrylic emulsion is preferably 30-50%, more preferably 40-50%, still more preferably 45-50%, and most preferably 47-48%; the acrylic emulsion is preferably one or more of styrene-acrylic emulsion, pure acrylic emulsion and silicone acrylic emulsion; in the invention, most preferably, the pure acrylic emulsion is produced by Shandong Hui brocade fine chemical industry Co., Ltd, the trade name is 108869, and the solid content is 47%; the styrene-acrylic emulsion is produced in medium petrochemical industry, is 998A in grade and has solid content of 48 percent; the silicone-acrylate emulsion is produced by medium petrochemical industry, has the mark of 996AD and the solid content of 48 percent.

A film forming auxiliary agent is also added into the latex paint; the content of the film-forming aid is preferably 2-4 parts by weight; the film forming auxiliary agent is preferably one or more of dipropylene glycol butyl ether, dipropylene glycol methyl ether and propylene glycol monomethyl ether acetate.

In the embodiment provided by the invention, the content of the plant composite liquid is specifically 10 parts by weight, 15 parts by weight or 20 parts by weight; the plant composite liquid preferably comprises wintergreen extracting solution, sage extracting solution, rosemary extracting solution, yucca extracting solution, eucalyptus oil, citronella oil, solubilizer and water; the mass ratio of the wintergreen extracting solution, the sage extracting solution, the rosemary extracting solution, the yucca extracting solution, the eucalyptus oil, the citronella oil, the solubilizer and the water is preferably 1: (0.5-0.8): (0.5-0.8): (0.4-0.6): (0.1-0.3): (0.1-0.3): (0.2-0.6): (3-4), more preferably 1: (0.6-0.7): (0.6-0.7): 0.5: 0.2: 0.2: (0.4-0.5): (3-4).

The wintergreen extracting solution is wintergreen extracting solution, and is preferably obtained by extracting wintergreen by using alcohol-water solution, removing alcohol solvent and diluting by using water; more preferably, the preparation is carried out according to the following steps: mixing herba Pyrolae with water, mashing, adding alcohol water solution, soaking, ultrasonic treating, filtering, removing alcohol solvent, and diluting with water to obtain herba Pyrolae extractive solution; the mass ratio of the wintergreen to the water is preferably 1: (1-3), more preferably 1: (1.5-2.5), and more preferably 1: 2; the trituration is preferably carried out in a tissue triturator; the rotating speed of the tissue triturator is preferably 8000-10000 r/min; preferably, mashing for 1-5 min in the mashing process, more preferably mashing for 2-4 min, stopping mashing for 3-8 min, preferably for 5min, and then continuously mashing for 1-5 min, preferably for 2-4 min; the volume fraction of alcohol in the alcohol aqueous solution is preferably 60% to 80%, more preferably 65% to 75%, and still more preferably 70%; the alcohol aqueous solution is preferably an ethanol aqueous solution; the mass ratio of the wintergreen to the alcohol-water solution is preferably 1: (5-10), more preferably 1: (6-8), and more preferably 1: 7; the time of ultrasonic treatment is preferably 20-50 min, and more preferably 30-40 min; the method for removing the alcohol solvent is preferably distillation under reduced pressure; the temperature of the reduced pressure distillation is preferably 50-60 ℃; the volume ratio of water to the liquid after removal of the alcohol solvent upon dilution with water is preferably 1: (0.5 to 2), more preferably 1: (0.8 to 1.5), and more preferably 1: 1; the wintergreen extracting solution contains rich wintergreen (o-methyl hydroquinone), eriosema chinense element (3, 7-dimethyl-1, 4-naphthoquinone), amino acid, organic acids such as gallic acid and ursolic acid, bitter substances and the like, and has the effects of broad-spectrum bacteriostasis and peculiar smell removal.

The solid content of the sage extract is preferably more than or equal to 10%; the pH value of the sage extract is preferably 3-9; the specific gravity of the sage extract is preferably 0.9-1.1 g/cm³(ii) a In the present invention, sage extract liquid available from american-exemplary biotechnology limited, Guangzhou is preferably used; the herba Salvia officinalis extract contains volatile oil, polysaccharide, alkaloid and other active ingredients, and can effectively adsorb sulfur-containing substances.

The effective content of the rosemary extract is preferably more than or equal to 5 percent; wherein the content of rosmarinic acid and ursolic acid is preferably more than or equal to 5%; the pH value of the rosemary extract is preferably 4-8; the specific gravity of the rosemary extract is preferably 0.9-1.1 g/cm³(ii) a In the present invention, rosemary extract available from snooker biotechnology limited, guangzhou is preferably used. The rosemary extract contains rosmarinic acid, chlorogenic acid, caffeic acid and L-ascorbic acid organic acid, has good oxidation resistance, and can effectively absorb organic amine, ammonia gas and the like.

The content of effective substances in the yucca extracting solution is preferably 3-8%; the pH value of the yucca extracting solution is preferably 4-8; the specific gravity of the yucca extract is preferably 0.9-1.1 g/cm³(ii) a In the present invention, yucca extract available from Teng-sourced Biochemical Co., Ltd is preferably used. The Yucca extract is rich in steroid saponin, polysaccharide, resveratrol and yucca polyphenol, and has strong binding ability to amino group.

The eucalyptus oil and the citronella oil have good antibacterial and deinsectization functions; through compounding of the plant liquid, the plant composite liquid with excellent bacteriostatic and odor removing performances can be obtained.

The solubilizer is preferably polyethylene glycol 400; in order to prolong the service time of the plant composite liquid, a bactericide is preferably also included; the mass ratio of the bactericide to the wintergreen extracting solution is preferably (0.1-0.3): 1; the bactericide is preferably hexamethylene monoguanidine.

In the present invention, the plant complex liquid is preferably prepared according to the following method: mixing solubilizer, bactericide and water, stirring, adding eucalyptus oil and citronella oil, stirring, adding wintergreen extract, sage extract, rosemary extract and yucca extract, and stirring to obtain plant composite liquid. Wherein the rotation speed of the mixing and stirring is preferably 300-500 revolutions per minute; the mixing and stirring time is preferably 5-20 min, more preferably 5-15 min, and further preferably 10 min; the rotation speed of the continuous stirring is preferably 800-1000 rpm; the continuous stirring time is preferably 20-40 min, and more preferably 30 min; the rotating speed of the stirring is preferably 300-500 revolutions per minute; the stirring time is preferably 10-30 min, and more preferably 20 min.

The latex paint provided by the invention is added with the modified zinc ricinoleate aqueous solution with higher stability and adsorption performance; the modified zinc ricinoleate aqueous solution is the same as the above, and is not described again; in the embodiment provided by the invention, the content of the modified zinc ricinoleate aqueous solution is specifically 3 parts by weight, 2 parts by weight or 5 parts by weight.

The content of the inorganic filler is preferably 30 to 45 parts by weight, and more preferably 30 to 40 parts by weight; the inorganic filler is preferably nano titanium dioxide and calcium carbonate; the mass ratio of the nano titanium dioxide to the calcium carbonate is preferably (5-17): (20-30), more preferably (7-17): (21-28).

The emulsion paint provided by the invention preferably further comprises 0.1-1 part by weight of a defoaming agent; the content is more preferably 0.2 to 0.8 part by weight, and still more preferably 0.2 to 0.4 part by weight; the defoaming agent is preferably a silicone defoaming agent; the organic silicon defoaming agent is preferably one or more of BYK088, Dow Corning afe1410 and Yuefang Z3157.

The emulsion paint provided by the invention preferably further comprises 0.1-1 part by weight of a dispersant; the content is more preferably 0.2 to 0.8 part by weight, and still more preferably 0.2 to 0.4 part by weight; the dispersant is preferably one or more of potassium hexametaphosphate, dispersant 5040 and BYK-190.

The emulsion paint provided by the invention preferably also comprises 0.01-0.03 part by weight of mildew-proof bactericide; the mildew-proof bactericide is preferably a nano-silver bactericide; the usage of the nano-silver bactericide can obviously reduce the usage of the bactericide, and only one dozen times of the usage of like products can achieve the same sterilization effect.

The latex paint provided by the invention preferably further comprises 0.1-1 part by weight of a thickening agent; the content is more preferably 0.2 to 0.8 part by weight, and still more preferably 0.2 to 0.4 part by weight; the thickener is preferably one or more of fumed silica, hydroxypropyl methylcellulose and hydroxyethyl cellulose.

The content of water in the latex paint provided by the invention is preferably 5-13 parts by weight.

The modified zinc ricinoleate aqueous solution is used as a raw material, so that the paint has high odor removing performance and high stability, and meanwhile, the latex paint is more environment-friendly due to the addition of the plant composite liquid, can automatically purify the space environment and eliminate peculiar smell, and has excellent odor removing and bacteria inhibiting functions, so that the problem of peculiar smell in the indoor space can be well solved.

The invention also provides a preparation method of the emulsion paint, which comprises the following steps: mixing and stirring acrylic emulsion, a film-forming auxiliary agent, a dispersing agent, a mildew-proof bactericide, a plant composite liquid, a modified zinc ricinoleate aqueous solution and water, and then adding an inorganic filler in the stirring process to continue stirring to obtain the emulsion paint.

The sources of all raw materials are not particularly limited in the invention and the raw materials are available on the market, wherein the acrylic emulsion, the film forming aid, the dispersing agent, the mildew-proof bactericide, the plant composite liquid, the modified zinc ricinoleate aqueous solution, the inorganic filler and the water are the same as those described above, and are not described again.

Mixing and stirring acrylic emulsion, film-forming auxiliary agent, dispersing agent, mildew-proof bactericide, plant composite liquid, modified zinc ricinoleate aqueous solution and water; the mixing and stirring speed is preferably 500-600 r/min; the mixing and stirring time is preferably 20-40 min, and more preferably 30 min.

Then adding inorganic filler in the stirring process and continuously stirring; the rotation speed of the continuous stirring is preferably 300-500 revolutions per minute; the time for continuing stirring is preferably 20-40 min, and more preferably 30 min.

After continuously stirring, preferably adding a thickening agent to adjust the viscosity of the system, adding a defoaming agent, continuously and slowly stirring, and removing bubbles to obtain the emulsion paint; the rotation speed of the slow stirring is preferably 100-200 revolutions per minute; the slow stirring time is preferably 5-20 min, and more preferably 10-15 min.

The invention also provides an application of the latex paint as an interior wall latex paint.

In order to further illustrate the present invention, the following describes a latex paint, a preparation method thereof, a modified zinc ricinoleate aqueous solution and a preparation method thereof in detail with reference to examples.

The reagents used in the following examples are all commercially available; the preparation method of the wintergreen extracting solution in the embodiment of the invention comprises the following steps: weighing 10 parts of wintergreen and 20 parts of pure water, adding the materials into a tissue triturator, starting the tissue triturator at a rotating speed of 8000-10000 rpm for 3 minutes, stopping the starting for 5 minutes, and continuing to start for 3 minutes; adding the mashed wintergreen into 70 parts of 70% ethanol for soaking for 24 hours; ultrasonic oscillation is carried out for 30min by using ultrasonic waves, and then vacuum filtration is carried out, wherein the vacuum pressure is 0.03-0.05 Mpa; the filtrate was distilled under reduced pressure at 50 ℃ to extract ethanol, and the obtained filtrate was purified using pure water 1: 1 diluting to obtain the wintergreen extracting solution;

the sage extract is commercially available, American-exemplary Biotech limited, Guangzhou, and has a solid content of 10% or more, a pH value of 3-9, and a specific gravity of 0.9-1.1 g/cm³(ii) a The rosemary extract is obtained from Guangzhou Sinuoke biotechnology limited, rosmarinic acid, ursolic acid not less than 5%, pH 4-8, and specific gravity 0.9-1.1 g/cm³；

The yucca extract is purchased from Guangzhou Teng-sourced biochemical engineering Limited company, the content of active ingredients is 3-8%, the pH value is 4-8, and the specific gravity is 0.9-1.1 g/cm³。

Example 1

The formula of the modified zinc ricinoleate aqueous solution is as follows:

4 parts of zinc ricinoleate;

12 parts of a surfactant APG;

3 parts of arginine;

4 parts of 2-hydroxyphosphonoacetic acid;

2 parts of 2-phosphonic acid butane-1, 2, 4-sodium tricarboxylate;

1 part of polyaspartic acid;

0.7 part of sodium hydroxide;

0.3 part of phenoxyethanol;

63 parts of pure water;

weighing a specified amount of pure water, adding the pure water into a reaction kettle, adding a surfactant, zinc ricinoleate and amino acid, mechanically stirring for 500-600 revolutions per minute, and stirring for 30min to fully wet and disperse the zinc ricinoleate; adding a specified amount of 2-hydroxyphosphonoacetic acid, 2-phosphonic acid butane-1, 2, 4-sodium tricarboxylate and polyaspartic acid, mechanically stirring for 800 r/min, and stirring for 10 min; reducing the mechanical stirring speed to 400 r/min, and slowly adding sodium hydroxide; 4. starting an emulsifying machine, wherein the emulsifying speed is 5 minutes and the rotating speed is 4000 revolutions per minute; adding preservative, and continuously stirring for 20min to obtain the modified zinc ricinoleate.

Example 2

Weighing a specified amount of pure water, adding the pure water into a stirring tank, adding a specified amount of polyethylene glycol 400 and hexamethylene guanidine, stirring for 10min at 300 r/min, then adding eucalyptus oil and citronella oil, increasing the rotating speed to 800 r/min, continuing to stir for 30min, then adding wintergreen extract, sage extract, rosemary extract and yucca extract, reducing the rotating speed to 300 r/min, and continuing to stir for 20min to obtain the required plant composite liquid.

The plant composite liquid is prepared by compounding wintergreen extracting solution, sage extracting solution, rosemary extracting solution, yucca extracting solution, eucalyptus oil, citronella oil, polyethylene glycol 400, hexamethylene guanidine and pure water, and the compounding proportion is as follows: 1: 0.6: 0.6: 0.5: 0.2: 0.2: 0.4: 0.2: 3.

examples 3 to 7 and comparative examples 1 to 2

Adding a specified amount of pure water into a stirring kettle according to the composition of the components shown in the table 1, sequentially adding a specified amount of acrylic emulsion, a film-forming assistant, a dispersing agent, a mildew-proof bactericide, a composite plant liquid and modified zinc ricinoleate, starting a stirring machine, stirring for 30min, and rotating the stirring machine at the speed of 500 revolutions per minute; slowly adding calcium carbonate powder and nano titanium dioxide in the stirring process, stirring for 30min, and rotating the stirrer at the speed of 400 r/min; adding a thickening agent to adjust the viscosity of the system; adding a defoaming agent, continuously and slowly stirring for 10min at the stirring speed of 100 rpm, and removing bubbles in the coating to obtain the interior wall latex paint.

The acrylic emulsion in Table 1 is manufactured by Shandong Hui jin Fine chemical Co., Ltd, with the designation of 108869 and the solid content of 47%; the styrene-acrylic emulsion is produced in medium petrochemical industry, is 998A in grade and has solid content of 48 percent; the silicone-acrylate emulsion is produced by medium petrochemical industry, is 996AD in mark and has solid content of 48 percent; the leveling agent is BYK 306; the dispersant is sodium hexametaphosphate; the defoaming agent is an organic silicon defoaming agent; the thickening agent is fumed silica; the mildew-proof bactericide is a nano-silver bactericide; a plant composite solution was prepared for example 2; an aqueous solution of modified zinc ricinoleate was prepared as in example 1.

The performance of the interior wall latex paints obtained in examples 3 to 7 and comparative examples 1 to 2 was examined, and the results are shown in Table 2.

TABLE 1 compositions of latex paints of examples 3-7 and comparative examples 1-2,

Table 2 Performance test results of the emulsion paints of examples 3 to 7 and comparative examples 1 to 2

The formaldehyde removal rate test method comprises the following steps: relative humidity (50 +/-10)% at normal temperature (20 ℃), and formaldehyde removal rate for 24h is tested according to JC/T1074-2008 indoor air purification function coating material purification performance

The method for testing the removal rate of the hydrogen sulfide comprises the following steps: 15L of hydrogen sulfide gas having an initial concentration of 0.15mg/m3 was passed through a large bubble absorption tube containing 10ml of deodorizing mist at a flow rate of 1L/min at normal temperature (20 ℃) and pressure (1 atm), and the other fractions were collected and analyzed for hydrogen sulfide concentration according to GB/T11742.

The ammonia removal rate test method comprises the following steps: at normal temperature (20 ℃) and normal pressure (1 atmosphere), 15L ammonia gas with the initial concentration of 1.5mg/m3 was passed through a large bubble absorption tube containing 10ml of deodorizing spray at a flow rate of 1L/min, and the ammonia gas concentration was analyzed by collecting the other parts after the treatment according to HJ 533.

As can be seen from the low-temperature film-forming property, the drying time and the brushing resistance in the table, the interior wall latex paint prepared by the invention has excellent performance and can reach the performance standard of the first-class products in China.

Claims

1. A latex paint, comprising:

2. The latex paint of claim 1 wherein said surfactant is selected from one or more of APG, OP-10 and TX-10;

the amino acid is selected from one or more of arginine, lysine and histidine;

the alkali metal hydroxide is selected from sodium hydroxide;

3. The latex paint of claim 1, wherein said acrylic emulsion is selected from one or more of styrene-acrylic emulsion, and silicone-acrylic emulsion;

4. The latex paint of claim 1 wherein said inorganic filler is selected from the group consisting of nano titanium dioxide and calcium carbonate; the mass ratio of the nano titanium dioxide to the calcium carbonate is (5-17): (20-30).

5. The emulsion paint of claim 1, wherein the plant composite liquid comprises wintergreen extract, sage extract, rosemary extract, yucca extract, eucalyptus oil, citronella oil, solubilizer and water; the wintergreen extracting solution, the sage extracting solution, the rosemary extracting solution, the yucca extracting solution, the eucalyptus oil, the citronella oil, the solubilizer and the water are mixed according to a mass ratio of 1: (0.5-0.8): (0.5-0.8): (0.4-0.6): (0.1-0.3): (0.1-0.3): (0.2-0.6): (3-4).

6. The latex paint of claim 5, wherein the wintergreen extract is obtained by extracting wintergreen with an alcohol-water solution, removing an alcohol solvent, and diluting with water;

the content of effective substances in the yucca extracting solution is 3-8%.

7. The latex paint of claim 5 wherein said plant complex liquid further comprises a biocide; the mass ratio of the bactericide to the wintergreen extracting solution is (0.1-0.3): 1.

8. the latex paint of claim 1 wherein said latex paint further comprises: 0.1-1 part by weight of a defoaming agent; 0.1-1 part by weight of a dispersant; 0.01-0.03 part by weight of a mildew-proof bactericide; 0.1-1 part by weight of a thickener;

9. An aqueous solution of modified zinc ricinoleate, comprising: zinc ricinoleate, a surfactant, an amino acid, 2-hydroxyphosphonoacetic acid, sodium 2-phosphonobutane-1, 2, 4-tricarboxylate, polyaspartic acid, an alkali metal hydroxide and water;

10. A method of preparing the aqueous solution of modified zinc ricinoleate of claim 9, comprising: