CN105111855A - Multi-functional emulsion paint and preparation method thereof - Google Patents

Abstract

The invention discloses a multifunctional latex paint and a preparation method thereof. The latex paint is composed of cellulose, antifreezing agent, film-forming aid, acrylic emulsion, pH regulator, polyhydroxyalkyl ether, defoamer, diatomite, Titanium dioxide, aluminum silicate, calcium carbonate, styrene-acrylic emulsion, preservative, defoamer, bactericide, dispersant, wetting agent and water. The preparation method of the latex paint includes material preparation, premixing and thinning. The present invention selects various materials and mixes them together, determines the components and their weight proportions through multiple experiments, does not add flavors or odor masking agents, has a soft smell, is safe and environmentally friendly, and can effectively remove harmful gases such as formaldehyde and benzene in the air , has the advantages of moisture resistance, strong water resistance, anti-mildew and anti-bacteria, anti-freeze and anti-mildew, abrasion resistance, sun protection, etc.; the multi-functional latex paint can be directly painted, easy to operate, good in hardness, and long in service life , and the preparation method of the multifunctional latex paint is simple to operate, convenient to prepare, and suitable for large-scale industrial production.

Description

A kind of multifunctional latex paint and preparation method thereof

technical field

The invention relates to the field of architectural coatings, in particular to a multifunctional latex paint and a preparation method thereof.

Background technique

With the development of the paint industry and the needs of market competition, latex paint has gradually changed from the earliest low-performance single-function to today's high-performance multi-function. With the growing economic environment, multi-functional latex paint has gradually become the leading product in the paint market. Although most traditional multi-functional latex paints have obvious advantages in various systems or in certain fields, most traditional All kinds of multifunctional latex paints have a common weakness, that is, the narrow range of use. Most traditional multi-functional latex paints are relatively single in scope of application, and their applicable substrates are also relatively fixed, and they are not used on other substrates at all.

Most of the latex paints currently on the market have the following problems: (1) Poor anti-fouling ability: once stains or dirty spots are printed on the wall, it is difficult to clean them, and they are not resistant to scrubbing, and the use time is short, and then the latex paint should be replaced , the cost increases. (2) Poor anti-mildew ability: Traditional latex paints on the market are refurbished on the front of old houses, kitchens, etc. After a period of time, mildew spots, cracks and easy to fall off will appear on the wall, which will greatly affect the renovation. The aesthetics behind the interior wall, the use time is short, and the replacement of latex paint will increase the cost. (3) Poor deodorization effect: In newly renovated houses, the indoor air usually contains more toxic substances such as formaldehyde, benzene and methanol, especially in a relatively closed environment, where toxic and harmful substances exist for a long time, and various diseases occur. The probability will also be greatly improved, so the odor-cleaning paint is also loved by consumers. The existing odor-cleaning paint is added with essence or odor masking agent, which cannot quickly dissipate the irritating odor and lacks the function of purifying indoor air. In view of the above problems, although the existing latex paint has been improved, the existing latex paint is only outstanding in one aspect of anti-fouling ability, anti-mildew ability or deodorizing function.

Contents of the invention

The purpose of the present invention is to overcome the shortcoming of prior art, provide a kind of multi-functional latex paint, this latex paint has the effect of deodorizing, antibacterial, mildew-proof simultaneously;

Another object of the present invention is to provide a preparation method of this multifunctional latex paint, which is simple to operate, convenient to prepare, and suitable for large-scale industrial production.

The object of the present invention is achieved through the following technical solutions: a multifunctional latex paint, which is made up of the raw materials of the following parts by weight:

Cellulose: 0.05～0.3; Antifreeze: 0.8～3; Coating agent: 0.5～4; Acrylic emulsion: 0.1～1; pH regulator: 0.05～1; Polyhydroxyalkyl ether: 0.05～1; Defoaming Agent: 0.05~1; diatomaceous earth: 0.5~10; titanium dioxide: 5~40; aluminum silicate: 2~20; calcium carbonate: 1~15; styrene-acrylic emulsion: 10~50; preservative: 0.1~5; Defoamer: 0.05~5; Bactericide: 0.05~3; Dispersant: 0.1~1; Wetting agent: 0.1~1; Water: 5~20.

Further, the pH regulator is AMP-95.

Further, the bactericide is any one of benzisothiazolin-3-one, methylisothiazolinone or 5-chloro-2methyl 4-isothiazolin-3-one.

Further, the defoamer is FOAMSTARA10.

Further, the antifreeze is ethylene glycol or propylene glycol.

Further, the dispersant is polyacrylamide or polycarboxylate.

Further, the film-forming aid is any one of Texanol ester alcohol, LusolvanFBH, Coalsol, DBE-IB or DPNB.

Further, the cellulose is hydroxypropyl cellulose.

Further, the wetting agent is an environment-friendly nonionic emulsifying wetting agent.

A kind of preparation method of multifunctional latex paint, it comprises the following steps:

S1. Raw material preparation: weigh each raw material according to the ratio of the above formula, and set aside;

S21. Add water to the disperser first, stir the cellulose and antifreeze under high-speed stirring until no lumps, the high speed is 600-1000rad/min, adjust the speed of the disperser to 800-1200rad/min, and fully stir 2 to 5 minutes, add acrylic acid emulsion, stir well for 2 to 5 minutes, add pH regulator, and stir until the system is completely swollen;

S22. Keep the rotation speed constant, accurately add dispersant, wetting agent, polyhydroxyalkyl ether, defoamer, styrene-acrylic emulsion, and fully stir for 2-5 minutes; increase the rotation speed to 1000-1200rad/min, and then add diatomaceous earth , titanium dioxide, aluminum silicate and calcium carbonate, stirring for 4 to 10 minutes;

S23. Rinse the dispersing plate and cylinder wall with water, lift and stir up and down ≥ 3 times, and disperse at a high speed of 1200-1400rad/min for 10-20min;

S3. Thinning: Adjust the speed of the disperser to 600-1000 rad/min, add bactericide, preservative, and film-forming aids, stir fully for 3-10 minutes, keep the speed constant, adjust the viscosity and specific gravity with water, and pull up and down three times. Stir for 8 to 15 minutes to prepare a multifunctional latex paint.

The present invention has the following advantages: the present invention selects various materials to compound and match, determines the components and their weight proportions through multiple experiments, does not add essence or flavor masking agent, has a soft smell, is safe and environmentally friendly, and can effectively remove the toxins in the air. Formaldehyde, benzene and other harmful gases have the advantages of moisture resistance, strong water resistance, anti-mildew and anti-bacteria, anti-freezing and anti-mildew, abrasion resistance, sun protection, etc.; the multi-functional latex paint can be directly painted, easy to operate, hard Good strength and long service life, and the preparation method of the multifunctional latex paint is simple to operate, convenient to prepare, and suitable for large-scale industrial production.

Detailed ways

The present invention will be further described below in conjunction with the examples, and the protection scope of the present invention is not limited to the following description.

Embodiment 1: a kind of multifunctional latex paint, it is made up of the raw material of following weight portion: Cellulose: 0.05; Hydroxyalkyl ether: 0.05; defoamer: 0.05; diatomaceous earth: 0.5; titanium dioxide: 5; aluminum silicate: 2; calcium carbonate: 1; styrene-acrylic emulsion: 10; preservative: 0.1; defoamer: 0.05 ; Fungicide: 0.05; Dispersant: 0.1; Wetting agent: 0.1;

Wherein, the pH regulator is AMP-95; the bactericide is benzisothiazolin-3-one; the defoamer is FOAMSTARA10; the antifreeze is ethylene glycol; Acrylamide; the film-forming aid is Texanol ester alcohol; the cellulose is hydroxypropyl cellulose; the wetting agent is an environment-friendly nonionic emulsifying wetting agent.

The preparation method of above-mentioned multifunctional latex paint, it may further comprise the steps:

S1. Raw material preparation: weigh each raw material according to the ratio of the above formula, and set aside;

S2. Premix:

S21. Add water to the disperser first, stir the cellulose and antifreeze under high speed stirring until no lumps, the high speed is 600rad/min, adjust the speed of the disperser to 800rad/min, stir fully for 2min, add acrylic acid For the emulsion, fully stir for 2 minutes, add a pH regulator, and stir until the system is completely swollen;

S22. Keep the rotation speed constant, accurately add dispersant, wetting agent, polyhydroxyalkyl ether, defoamer, styrene-acrylic emulsion, and fully stir for 2 minutes; increase the rotation speed to 1000rad/min, and then add diatomaceous earth, titanium dioxide, silicon Acid aluminum and calcium carbonate, stirred for 4min;

S23. Rinse the dispersing plate and cylinder wall with water, lift and stir up and down ≥ 3 times, and disperse at a high speed of 1200rad/min for 10 minutes;

S3. Thinning: Adjust the speed of the disperser to 600rad/min, add fungicides, preservatives, and film-forming aids, stir thoroughly for 3 minutes, keep the speed constant, adjust the viscosity to 100KU, and the specific gravity to 1.350g/ml～1.410g with water /ml, pull it up and down three times, and stir for 8 minutes to prepare a multi-functional latex paint.

Embodiment 2: a kind of multifunctional latex paint, it is made up of the raw material of following weight part: cellulose: 0.3; Hydroxyalkyl ether: 1; defoamer: 1; diatomaceous earth: 10; titanium dioxide: 40; aluminum silicate: 20; calcium carbonate: 15; styrene-acrylic emulsion: 50; preservative: 5; defoamer: 5 ; Fungicide: 3; Dispersant: 1; Wetting agent: 1; Water: 20.

Wherein, the pH regulator is AMP-95; the bactericide is methylisothiazolinone; the defoamer is FOAMSTARA10; the antifreeze is propylene glycol; the dispersant is polycarboxylate; The film-forming aid is LusolvanFBH; the cellulose is hydroxypropyl cellulose; and the wetting agent is an environment-friendly nonionic emulsifying wetting agent.

The preparation method of above-mentioned multifunctional latex paint, it may further comprise the steps:

S1. Raw material preparation: weigh each raw material according to the ratio of the above formula, and set aside;

S2. Premix:

S21. Add water to the disperser first, stir the cellulose and antifreeze under high speed stirring until there are no lumps, the high speed is 1000rad/min, adjust the speed of the disperser to 1200rad/min, fully stir for 5min, add acrylic acid For the emulsion, fully stir for 5 minutes, add a pH regulator, and stir until the system is completely swollen;

S22. Keep the rotation speed constant, accurately add dispersant, wetting agent, polyhydroxyalkyl ether, defoamer, styrene-acrylic emulsion, and fully stir for 5 minutes; increase the rotation speed to 1200rad/min, and then add diatomaceous earth, titanium dioxide, silicon Acid aluminum and calcium carbonate, stirring for 10min;

S23. Rinse the dispersing plate and cylinder wall with water, lift and stir up and down ≥ 3 times, and disperse at a high speed of 1400rad/min for 20min;

S3. Thinning: adjust the speed of the disperser to 1000rad/min, add fungicides, preservatives, and film-forming aids, stir thoroughly for 10 minutes, keep the speed constant, adjust the viscosity to 100KU, and the specific gravity to 1.400g/ml～1.460g with water /ml, pull it up and down three times, and stir for 15 minutes to prepare a multifunctional latex paint.

Embodiment 3: a kind of multifunctional latex paint, it is made up of the raw material of following weight portion: Cellulose: 0.1; Hydroxyalkyl ether: 0.2; defoamer: 0.2; diatomaceous earth: 2; titanium dioxide: 10; aluminum silicate: 8; calcium carbonate: 5; styrene-acrylic emulsion: 18; preservative: 1; defoamer: 1 ; Fungicide: 0.8; Dispersant: 0.3; Wetting agent: 0.2; Water: 8.

Wherein, the pH regulator is AMP-95; the bactericide is 5-chloro-2 methyl 4-isothiazolin-3-one; the defoamer is FOAMSTARA10; the antifreeze is ethylene glycol The dispersant is polyacrylamide; the film-forming aid is Coalsol; the cellulose is hydroxypropyl cellulose; the wetting agent is an environment-friendly nonionic emulsifying wetting agent.

The preparation method of above-mentioned multifunctional latex paint, it may further comprise the steps:

S1. Raw material preparation: weigh each raw material according to the ratio of the above formula, and set aside;

S2. Premix:

S21. Add water to the disperser first, stir the cellulose and antifreeze under high speed stirring until there are no lumps. The high speed is 700rad/min, adjust the speed of the disperser to 900rad/min, stir fully for 3min, and add acrylic acid For the emulsion, fully stir for 3 minutes, add a pH regulator, and stir until the system is completely swollen;

S22. Keep the rotation speed constant, accurately add dispersant, wetting agent, polyhydroxyalkyl ether, defoamer, styrene-acrylic emulsion, and fully stir for 3 minutes; increase the rotation speed to 1050rad/min, and then add diatomaceous earth, titanium dioxide, silicon Acid aluminum and calcium carbonate, stirred for 5min;

S23. Rinse the dispersing plate and cylinder wall with water, lift and stir up and down ≥ 3 times, and disperse at a high speed of 1250rad/min for 12min;

S3. Thinning: Adjust the speed of the disperser to 700rad/min, add fungicides, preservatives, and film-forming aids, stir thoroughly for 5 minutes, keep the speed constant, adjust the viscosity to 100KU, and the specific gravity to 1.350g/ml～1.410g with water /ml, pull it up and down three times, and stir for 10 minutes to prepare a multi-functional latex paint.

Embodiment 4: a kind of multifunctional latex paint, it is made up of the raw material of following weight part: cellulose: 0.2; Hydroxyalkyl ether: 0.4; defoamer: 0.5; diatomaceous earth: 5; titanium dioxide: 28; aluminum silicate: 10; calcium carbonate: 7; styrene-acrylic emulsion: 25; preservative: 2.5; defoamer: 2.5 ; Fungicide: 2; Dispersant: 0.5; Wetting agent: 0.5; Water: 12.

Wherein, the pH regulator is AMP-95; the bactericide is methylisothiazolinone; the defoamer is FOAMSTARA10; the antifreeze is propylene glycol; the dispersant is polycarboxylate; The film-forming aid is DBE-IB; the cellulose is hydroxypropyl cellulose; and the wetting agent is an environment-friendly nonionic emulsifying wetting agent.

The preparation method of above-mentioned multifunctional latex paint, it may further comprise the steps:

S1. Raw material preparation: weigh each raw material according to the ratio of the above formula, and set aside;

S2. Premix:

S21. Add water to the disperser first, stir the cellulose and antifreeze under high speed stirring until there are no lumps, the high speed is 800rad/min, adjust the speed of the disperser to 1000rad/min, stir fully for 4min, add acrylic acid For the emulsion, fully stir for 4 minutes, add a pH regulator, and stir until the system is completely swollen;

S22. Keep the rotation speed constant, accurately add dispersant, wetting agent, polyhydroxyalkyl ether, defoamer, styrene-acrylic emulsion, and fully stir for 5 minutes; increase the rotation speed to 1100rad/min, and then add diatomaceous earth, titanium dioxide, silicon Acid aluminum and calcium carbonate, stirred for 6min;

S23. Rinse the dispersing plate and cylinder wall with water, lift and stir up and down ≥ 3 times, and disperse at a high speed of 1250rad/min for 15 minutes;

S3. Thinning: Adjust the speed of the disperser to 800rad/min, add fungicides, preservatives, and film-forming aids, stir fully for 7 minutes, keep the speed constant, adjust the viscosity to 100KU, and the specific gravity to 1.350g/ml～1.410g with water /ml, pull it up and down three times, and stir for 12 minutes to prepare a multifunctional latex paint.

Embodiment 5: a kind of multifunctional latex paint, it is made up of the raw material of following weight portion: Cellulose: 0.25; Hydroxyalkyl ether: 0.7; defoamer: 0.9; diatomaceous earth: 8; titanium dioxide: 32; aluminum silicate: 18; calcium carbonate: 13; styrene-acrylic emulsion: 40; ; Fungicide: 2.6; Dispersant: 0.8; Wetting agent: 0.9; Water: 18.

Wherein, the pH regulator is AMP-95; the bactericide is 5-chloro-2 methyl 4-isothiazolin-3-one; the defoamer is FOAMSTARA10; the antifreeze is ethylene glycol The dispersant is polyacrylamide; the film-forming aid is DPNB; the cellulose is hydroxypropyl cellulose; the wetting agent is an environment-friendly nonionic emulsifying wetting agent.

The preparation method of above-mentioned multifunctional latex paint, it may further comprise the steps:

S1. Raw material preparation: weigh each raw material according to the ratio of the above formula, and set aside;

S2. Premix:

S21. Add water to the disperser first, stir the cellulose and antifreeze under high speed stirring until there are no lumps, the high speed is 9000rad/min, adjust the speed of the disperser to 1100rad/min, stir fully for 5min, add acrylic acid For the emulsion, fully stir for 3 minutes, add a pH regulator, and stir until the system is completely swollen;

S22. Keep the rotation speed constant, accurately add dispersant, wetting agent, polyhydroxyalkyl ether, defoamer, styrene-acrylic emulsion, and fully stir for 2 minutes; increase the rotation speed to 1180rad/min, and then add diatomaceous earth, titanium dioxide, silicon Acid aluminum and calcium carbonate, stirred for 9min;

S23. Rinse the dispersing plate and cylinder wall with water, lift and stir up and down ≥ 3 times, and disperse at a high speed of 1350rad/min for 18 minutes;

S3. Thinning: Adjust the speed of the disperser to 900rad/min, add fungicides, preservatives, and film-forming aids, stir thoroughly for 3 to 10 minutes, keep the speed constant, adjust the viscosity to 100KU, and the specific gravity to 1.350g/ml~ with water 1.410g/ml, pull up and down three times, stir for 8-15 minutes, and then the multi-functional latex paint is prepared.

The performance test of the multifunctional latex paint prepared in the above examples 1-5 is as follows: the viscosity is 100KU, which is easy to construct; the relative decolorizing power is 100, and different colors can be prepared according to the requirements; excellent weather resistance and wash resistance 5000 times, and less polluting, easy to scrub; VOC content is 0, soluble chromium is less than 60mg/kg, soluble lead is less than 90mg/kg, soluble cadmium is less than 75mg/kg, soluble mercury is less than 60mg/kg, benzene-free , toluene, ethylbenzene, xylene and other harmful substances, healthy and environmentally friendly; gloss 5.0, fineness <50μm, contrast ratio 95%. The overall effect is flat and smooth, making it an ideal material for interior wall decoration.

Claims (10)

1. a multi-functional latex paint, is characterized in that, it is made up of the raw material of following weight parts:

Mierocrystalline cellulose: 0.05 ~ 0.3; Frostproofer: 0.8 ~ 3; Film coalescence aid: 0.5 ~ 4; ACRYLIC EMULSION: 0.1 ~ 1; PH adjusting agent: 0.05 ~ 1; Poly-hydroxyalkyl ether: 0.05 ~ 1; Defoamer: 0.05 ~ 1; Diatomite: 0.5 ~ 10; Titanium dioxide: 5 ~ 40; Pure aluminium silicate: 2 ~ 20; Calcium carbonate: 1 ~ 15; Benzene emulsion: 10 ~ 50; Sanitas: 0.1 ~ 5; Defoamer: 0.05 ~ 5; Sterilant: 0.05 ~ 3; Dispersion agent: 0.1 ~ 1; Wetting agent: 0.1 ~ 1; Water: 5 ~ 20.

2. a kind of multi-functional latex paint as claimed in claim 1, is characterized in that, described pH adjusting agent is AMP-95.

3. a kind of multi-functional latex paint as claimed in claim 1, is characterized in that, described sterilant is any one in the chloro-2 methyl 4-isothiazoline-3-ketone of benzisothiazole-3-ketone, methylisothiazolinone or 5-.

4. a kind of multi-functional latex paint as claimed in claim 1, is characterized in that, described defoamer is FOAMSTARA10.

5. a kind of multi-functional latex paint as claimed in claim 1, is characterized in that, described frostproofer is ethylene glycol or propylene glycol.

6. a kind of multi-functional latex paint as claimed in claim 1, is characterized in that, described dispersion agent is polyacrylamide or polycarboxylate.

7. a kind of multi-functional latex paint as claimed in claim 1, is characterized in that, described film coalescence aid is any one in Texanol ester alcohol, LusolvanFBH, Coalsol, DBE-IB or DPNB.

8. a kind of multi-functional latex paint as claimed in claim 1, is characterized in that, described Mierocrystalline cellulose is hydroxypropylcellulose.

9. a kind of multi-functional latex paint as claimed in claim 1, is characterized in that, described wetting agent is environment-friendly type non-ionic emulsifier wetting agent.

10. the preparation method of a kind of multi-functional latex paint as claimed in claim 1, it is characterized in that, it comprises the following steps:

S1. get the raw materials ready: take each raw material by above-mentioned formula rate, for subsequent use;

S2. premix:

S21. first water is added in dispersion machine, Mierocrystalline cellulose and frostproofer are stirred to without agglomerate under high rotating speed stirs, described high rotating speed is 600 ~ 1000rad/min, adjustment dispersing speed to 800 ~ 1200rad/min, abundant stirring 2 ~ 5min, adds ACRYLIC EMULSION, fully stirs 2 ~ 5min, add pH adjusting agent, be stirred to system complete swelling;

S22. keep rotating speed constant, accurately add dispersion agent, wetting agent, poly-hydroxyalkyl ether, defoamer, benzene emulsion, fully stir 2 ~ 5min; Improve rotating speed to 1000 ~ 1200rad/min, add diatomite, titanium dioxide, pure aluminium silicate and calcium carbonate successively, stir 4 ~ 10min;

S23. rinse dispersion impeller and casing wall with water, lift stirring >=3 time up and down, 1200 ~ 1400rad/min disperses 10 ~ 20min at a high speed;

S3. adjust rare: adjustment dispersing speed to 600 ~ 1000rad/min, adds sterilant, sanitas, film coalescence aid, fully stir 3 ~ 10min, keep rotating speed constant, with water adjustment viscosity and proportion, lift three times up and down, stir 8 ~ 15min, i.e. obtained multi-functional latex paint.