KR101123111B1 - Method for preparation of smoke suppress and fast drying environmental friendly fire retardant water-born paint with ceramic layer - Google Patents

Abstract

The present invention is a quick-drying environment-friendly to form a ceramic layer in a fire that can reduce the risk of life by reducing the harmful gas and smoke generated by the fire of the paint coating ceramic is ceramic by the chemical reaction by the heat source generated in the fire A type aqueous flame retardant paint and a method for preparing the same, comprising 15.0 to 25.0% by weight of an acidic aqueous emulsion such as a modified ethylene-acrylic acid emulsion, a modified acrylic emulsion or a vinyl acrylic, lead bisilicate, titanium silicate, and the like. 10.0 to 15.0 wt% glass frit, such as zirconium silicate, 1.0 to 3.0 wt% sodium phosphate, molybdenum trioxide (MoO ₃ ), aluminum hydroxide, zinc hydrooxy Smoke reducing agent mixture of zinc hydroxy stannat or zinc borate 5.0 to 10.0 Volume%, 10.0-20.0 wt% microencapsulated melamine polyphosphate, 10.0-20.0 wt% dipentaerythitol, microencapsulated long chain polyphosphate (microencapsulated long chain polyphosphate) 5.0-25.0 wt%, filler 0.5 To 5.0% by weight, 0.5 to 1.0% by weight of additives, and 10.0 to 25.0% by weight of diluent Eco-friendly flame retardant paint with excellent heat resistance and flexibility, fast drying speed and ceramic coating in case of fire to reduce the amount of harmful gas.According to the production method of smoke-reducing quick-drying eco-friendly water-based flame retardant paint that forms a ceramic layer in case of fire, acidic aqueous When blended with emulsion, glass frit, sodium phosphate, smoke reducing agent mixture, microencapsulated melamine polyphosphate, dipentaerythitol, microencapsulated long chain polyphosphate filler, diluent, and additives, the drying speed is fast and the coating is flexible In addition to the expansion of the ceramic coating to prevent flame propagation and burning of the protective film, it is also useful and novel with the effect of easily producing environmentally friendly water-based paints that can reduce harmful gases in the event of a fire by using a smoke reducing agent mixture. Invention.

Flame retardant paint, eco-friendly, noxious gas, ceramicization

Description

Smoke-reducing, quick-drying, eco-friendly water-based flame retardant paint having a ceramic layer in the case of fire and a method for manufacturing the same {Method for preparation of smoke suppress and fast drying environmental friendly fire retardant water-born paint with ceramic layer}

The present invention is a quick-drying environment-friendly to form a ceramic layer in a fire that can reduce the risk of life by reducing the harmful gas and smoke generated by the fire of the paint coating ceramic is ceramic by the chemical reaction by the heat source generated in the fire It relates to a type aqueous flame-retardant paint and a method for producing the same.

In general, paint is a fluid substance, which is widely applied to the surface of an object to form a thin film layer, and is dried and cured over time, thereby protecting the surface of the object and increasing the aesthetics. .

Such paints are particularly applied to various structures such as buildings to enhance the appearance of the structures as well as to prevent damages such as corrosion and to improve durability.

Paints mainly used for the protection of structures such as buildings include oil paint, enamel paint, and water paint.

These paints have the effect of increasing the aesthetics and improving the insulation and heat resistance as well as the protection of the building, while the durability and abrasion resistance are weak, causing the protective film to peel off or cracking, as well as far-infrared radiation and anion emission. The beneficial effects on the human body, such as humidity control, sterilization, antibacterial and detoxification, are extremely insignificant.

Therefore, when the paint is applied to the surface of the structure to be built using concrete, as described above, there is an effect that the structure is protected by the paint, the aesthetics are increased and heat insulation and heat resistance are improved, but odors generated from concrete And harmful components are not reduced or blocked and are discharged into the structure as it is, which not only adversely affects people living in or entering the structure, but also inhabits the surface of the structure with various bacteria or molds harmful to the human body. Approached.

Thus, in order to solve the problems caused by the use of conventional paints as described above, paints using materials such as ocher, charcoal, and barn rock have been developed and used as interior finishing materials. Or the fact that the functionalities, such as elements that help to promote the health of the human body is very weak and does not actually help.

Patent Registration No. 10-0641313 (October 31, 2006) discloses a charcoal having a large amount of anion release, deodorization, antibacterial and sterilization, and deodorization and removal of toxic substances such as formaldehyde, volatile organic compounds, and ammonia gas. To this, as a secondary material, wood charcoal, herbal oil, powdered clay, rare earth, zeolite, and a small amount of ganbanite are added to increase the air purifying power in the room or the elements that help to improve the health of the human body. A functional water paint and a method for producing the same.

In general, water-based paint is a paint that is diluted with water.

In other words, the pigment is a powder-like paint that is dissolved in water and mixed with a water-soluble deadlocking agent. Most of the commercially available paints are white. Therefore, when a desired color is desired, an aqueous colorant or an acrylic paint is used. Mainly used for wallpaper.

However, the above-described water-based paint could not be given a separate function except for the purpose of simply painting the inner and outer walls of the building.

Patent registration No. 10-0907046 (2009.07.02) relates to a method for producing an environmentally friendly water-based paint, more specifically, the water-based paint contains a mineral powder beneficial to the human body by the anion and far-infrared emission effect of natural minerals It relates to an invention to provide a comfortable indoor environment, comprising the steps of: collecting a white mica; Crushing the collected mica to coarse particles to remove impurities, and then drying the mica to completely dry the moisture contained in the mica, applying heat at 600 to 700 ° C .; Finely pulverizing the dried mica to form a fine powder mica powder by sieving to maintain a particle size of 200 mesh or more; Evenly mix 89-91% by weight of water paint, 4-6% by weight of water, 2-4% by weight of mica powder, 0.9-1.1% by weight of dietary sulfur, 0.4-0.6% by weight of citric acid, 0.4-06% by weight of cypress powder Mixing step; Putting the mixture into a stirrer and rotating the blade blade at high speed so that the mixture is evenly mixed to form a gel state; The present invention relates to a method for producing an environmentally friendly aqueous paint by injecting evenly mixed aqueous paint into a container and then sealing and packaging the aqueous paint.

In addition, the conventional water-based paint is applied to the cement building vinyl resin emalsion or acrylic resin emulsion, but the coating film is easily detached or discolored, so the service life is short and liquid, so there is a disadvantage that the handling is inconvenient and expensive. The inventors have replaced it with other alkaline substances such as NaOH instead of sodium silicate, but there is a phenomenon in which the gas is not removed but partially entangled in rare NaOH water. In addition, it can be seen that there is a defect such as not curing even when this substance is blended, such as a pigment dispersant.

In order to solve the above problems, Patent Publication No. 1980-0000434 (1980.05.26) is adjusted to pH 8-9 by adding sodium silicate to water, and then rapidly increased to 70 ℃ by adding a carboxylate material at 70-90 ℃ After 2-3 hours of maintenance, a method for producing a powdered aqueous paint was proposed in which the gas was completely removed, the carbide material was made into a slurry, dehydrated and dried, and the powder case was mixed and finely ground.

However, paints to date can burn with flammable materials in case of fire, spread flames, release toxic gases, and cause great loss of life.In the case of oil-based paints using organic solvents as diluents, It is harmful to human body and can cause environmental pollution.

Volatile organic compounds (VOCs) in paints are harmful to the human body that produce ozone (O ₃ ) by causing photochemical oxidation with nitrogen oxides from sunlight in the atmosphere. In particular, benzene, formaldehyde and the like are known as chemicals that can cause abdominal pain, headache, dizziness, cancer, leukemia. About 62.5% of VOC emissions come from paints and organic solvents. As a countermeasure, the government has implemented an environmentally friendly paint dissemination policy in the metropolitan area's atmospheric management area since 2005.

Therefore, the object of the present invention is water-based and fast drying, easy construction, and the coating is ceramic in case of fire not only to prevent the propagation of flame and combustion of the protective film, but also to produce the eco-friendly water-based flame retardant paint to reduce the toxic gases and smoke generated To provide a way.

In order to overcome the problems described above, the present invention is easy to work with a high speed of drying and aqueous, and the paint film is expanded by a chemical reaction by a heat source generated in the fire to prevent the spread of fire, reducing the harmful gas generated in the fire The present invention relates to a method for preparing an environmentally friendly water-based flame retardant paint, and in the present invention, a modified ethylene-acrylic acid emulsion, an acidic aqueous emulsion such as modified acrylic emulsion or vinyl arc, 15.0 to 25.0% by weight, lead bisilicate, titanium silicate (titanium) glass frit, such as silicate or zirconium silicate, 10.0 to 15.0 wt%, 1.0 to 3.0 wt% sodium phosphate, molybdenum trioxide (MoO ₃ ), aluminum hydroxide, zinc Smoke Reducing Agent of Zinc Oxy Stanstan or Zinc Borate Mixture 5.0-10.0 wt%, microencapsulated melamine polyphosphate 10.0-20.0 wt%, dipentaerythitol 10.0-20.0 wt%, microencapsulated long chain polyphosphate (microencapsulated long chain polyphosphate) 5.0-25.0 wt% %, 0.5 to 5.0% by weight of filler, 0.5 to 1.0% by weight of additive, and 10.0 to 25.0% by weight of diluent It is excellent in heat resistance, flexibility, fast drying speed and ceramics in case of fire can make eco-friendly flame retardant paint that can reduce the amount of harmful gas.

The present invention described above, according to the production method of smoke-reducing quick-drying eco-friendly water-based flame retardant paint to form a ceramic layer in case of fire, acidic aqueous emulsion, glass frit, sodium phosphate, smoke reducing agent mixture, microencapsulated melamine polyphosphate, di When kneading with pentaerythritol, microencapsulated long-chain polyphosphate fillers, diluents, and additives, the drying speed is high, the coating film is flexible, and the ceramic film expands in case of fire, preventing flame propagation and burning of the protective film. It is a useful and novel invention that has the effect of easily producing environmentally friendly water-based paints that can reduce harmful gases in case of fire.

To achieve the above object

The aqueous emulsion used in the present invention is a binder for forming a coating film of paint, 15.0 to 25.0% by weight is used as a component to form a coating film of the paint, when the component is less than 15.0% by weight of the film is less flexible In the case of more than 25.0 wt%, workability is poor.

The glass frit used in the present invention is a glass component such as lead silicate, titanium silicate or zirconium silicate, when 10.0 to 15.0 wt% is used, it melts in a fire to form a ceramic foam layer, and when the component is less than 10.0 wt%, No layer is formed, and when more than 15.0% by weight, workability is poor.

Sodium phosphate used in the present invention is 1.0 to 3.0% by weight is used as a component to control the drying rate of the paint film, and when the component is less than 1.0% by weight, the drying speed of the film is lowered, when more than 3.0% by weight The film's flexibility deteriorates.

The smoke reducing agent mixture used in the present invention is a mixture of molybdenum trioxide, aluminum hydroxide, zinc hydrooxy stannate and zinc borate, and 5.0 to 10.0 wt% is used as a component to reduce toxic gases and smoke in a fire, and 5.0 wt% If it is less than%, there is no performance of the reducing agent, and if it is more than 10.0% by weight, the film flexibility becomes poor.

The microencapsulated melamine polyphosphate used in the present invention forms a base layer of the coating film when a fire occurs as a flame retardant, and when 10.0 to 20.0% by weight is used, the tensile property of the film is deteriorated.

Dipentaerythiothol used in the present invention is a component that acts to swell the carbon film by reacting in the event of a fire and is used in an amount of 10.0 to 20.0% by weight, and when the component is less than 10.0% by weight, the expandability is lowered, and more than 20.0% by weight. In this case, the film is inferior in flame retardancy.

The microencapsulated long-chain polyphosphate used in the present invention reacts when a fire occurs, and 5.0 to 25.0 wt% is used as a main component to swell the ceramic layer, and when the component is less than 15.0 wt%, the expandability is lowered, and more than 25.0 wt%. The film's flexibility worsens.

Water, which is a diluent used in the present invention, 20.0 to 30.0% by weight is used as a viscosity modifier, when the component is less than 20.0% by weight, the workability is poor, and when more than 30.0% by weight, the drying time is delayed.

In addition, as the filler used in the present invention, the sugars and talc are used in an amount of 0.5 to 5.0 wt% to improve the strength of the paint film. Dispersants, viscosity modifiers and antifoaming agents used as additives are used in an amount of 0.5 to 1.0% by weight to facilitate paint production.

Looking at the production method of smoke-reducing quick-drying eco-friendly water-based flame retardant paint to form a ceramic layer in the fire according to the present invention in more detail, the embodiment according to the following.

The present invention will be described in more detail with reference to the following examples. However, the scope of the present invention is not limited only to the following examples.

The heat loss rate and the harmful gas reduction rate of the paints prepared in the following Examples and Comparative Examples are evaluated according to the following reference examples.

1) Thermal expansion rate measurement

After the paint film was dried to a thickness of 1 mm, five 50 mm × 50 mm specimens were left in a 300 ° C. heating furnace for 30 minutes, and then the average expansion height of the sample was measured.

2) Hazardous Gas Reduction Rate Measurement

2 g of paint dry sample is burned in a 1 L reactor, followed by CO (measurement range of 0 to 10,000 ppm), CO ₂ (0 to 500 ppm), O ₂ , (0 to 30%), and H ₂ S (0 to 100 ppm). Using a gas detector equipped with a measuring sensor (NDIR CO, CO ₂ Detector, Model: CD98 plus) was measured from the reduction of CO, CO ₂ and H ₂ S generated in the combustion gas.

To prepare a paint by mixing the components shown in Table 2 by the mixing method in the fifth step as described below under the same conditions as in Table 1 using a mixer at each compounding ratio.

A second step of inducing phosphorylation reaction by adding a second sodium phosphate to the dispersed ceramic reaction system by adding a ceramic reagent to a mixer in a diluent water and stirring the mixture at 400 RPM for 20 minutes, and a defoamer; After adding a diluent and stirring for 30 minutes, the acidic aqueous emulsion was added to the third step and the third step, and stirred at 600 RPM for 20 minutes, followed by adding a smoke reducer, a filler, and an additive. Finally, the fourth process, which is a paint process, and the fifth process, which is a viscosity control process for controlling viscosity suitable for construction by adding water, which is a diluent, are finally prepared.

(Table 1)

From Table 1, it can be seen that the thermal expansion rate of the flame retardant paint prepared according to the present invention is 10 to 42 times or more. The expanded ceramic layer is useful because it prevents the flame from reaching the protected film and prevents the propagation of the flame and the combustion of flammable materials. In Example 1-10 with the addition of a smoke reducing agent, the reduction rate of the harmful gas was 40 to 60%. In comparison, as shown in Comparative Example 1, it is shown that there is no reduction effect when no reducing agent is used.

In addition, as shown in Comparative Example 2, it can be seen that the drying time becomes longer when the sodium phosphate is not added.

The acidic aqueous emulsion of the present invention is EVOCAR ^™ LATEX DA280 (PH 5.0), UCARTM Latex 154S (PH 4.5) and Latex 162 (PH 4.5) from Dow Chemical Company, microencapsulated long-chain polyphosphate Hoechst) Hostaflam AP462, AP422, microencapsulated melaminepolyphosphate was used as MPC from Welchem International.

Table 2

Examples and comparative examples of the production method of smoke-reducing fast drying eco-friendly water-based flame retardant paint to form a ceramic layer in fire

Claims (5)

15.0 to 25.0 wt% of acidic aqueous emulsion, 10.0 to 15.0 wt% of glass frit, 1.0 to 3.0 wt% of sodium phosphate, 5.0 to 10.0 wt% of smoke reducing agent, 10.0 to 20.0 wt% of microencapsulated melamine polyphosphate, dipentae Smoke-reducing, quick-drying, eco-friendly, water-based flame retardant paint to form a ceramic layer in a fire comprising 10.0 to 20.0 wt% of rititolol, 5.0 to 25.0 wt% of microencapsulated long-chain polyphosphate, 0.5 to 5.0 wt% of filler, and 0.5 to 1.0 wt% of additive . A first step in which a ceramic reagent is added to the mixer as a diluent and stirred to disperse; a second step in which phosphoric acid reaction is induced by adding dibasic sodium phosphate to the dispersed ceramic reaction system; and an antifoaming agent and a diluent are added and stirred. After adding the acid-based aqueous emulsion to the third step and the third step of aging and stirring, and then adding a smoke reducing agent, a filler and an additive, the fourth step and a diluent water are added. Smoke-reducing quick-drying eco-friendly water-based flame retardant paint to form a ceramic layer in the case of a fire produced by the fifth step of controlling the viscosity suitable for construction. The method according to claim 1, The acidic water-based emulsion is a smoke-resistant quick-drying eco-friendly water-based flame retardant paint to form a ceramic layer in the event of a fire comprising a polymer-based aqueous emulsion consisting of PH3 ~ 6. The method according to claim 1, The glass frit is smoke-retardant quick-drying eco-friendly water-based flame retardant paint to form a ceramic layer in case of fire composed of lead silicate, titanium silicate or zirconium silicate alone or mixed. The method according to claim 1, The smoke reducing agent is a smoke-reducing, quick-drying, eco-friendly, water-based flame retardant paint to form a ceramic layer in the event of fire comprising molybdenum trioxide, aluminum hydroxide, zinc hydrooxy stannate or zinc borate alone or in combination.