KR101296204B1 - Energy-saving coating compounds for asphalt shingles and the manufacturing methods, waterproofing construction method using the energy-saving coating compounds - Google Patents

Abstract

PURPOSE: An energy-saving coating composition is provided to block infrared rays from solar light, to emit heat from the surface of a roof to atmosphere, and to reduce indoor energy load by absorbing and removing radiant heat. CONSTITUTION: An energy-saving coating composition comprises 25-45 wt% of a water-dispersible acrylic emulsion resin, 10-18 wt% of water, 0.2-2 wt% of a foaming agent, 1-5 wt% of a plasticizer, 10-20 wt% of a calcium carbonate, 7-13 wt% of a heat-shielding pigment, 1-5 wt% of a heat-radiating pigment, 0.2-2 wt% of a dispersant, 7-13 wt% of a hollow pigment, 0.1-1 wt% of a tackifier, 0.5-3.5 wt% of a film-forming agent, and 10-20 wt% of an EPDM chip. The heat-shielding pigment consists of a zirconium and an aluminum compound. [Reference numerals] (S100) Step of inputting a water-dispersible acrylic emulsion resin, water, a foaming agent, and a plasticizer and stirring the same; (S200) Step of inputting a calcium carbonate, a heat-shielding pigment, a heat-radiating pigment, and a dispersant into the resin mixture and dispersing the same; (S300) Step of inputting a hollow pigment, a tackifier, and a film-forming agent into the dispersion; (S400) Step of inputting a foaming agent and an EPDM chip into the hollow pigment composition and stirring the same

Description

Energy-saving coating compounds for asphalt shingles and the manufacturing methods, waterproofing construction method using the Energy-saving coating compounds}

The present invention relates to an energy-saving asphalt shingles roof coating composition, a method of manufacturing the same, and an energy-saving waterproof construction method using the coating composition. Specifically, the present invention provides a waterproof coating layer having excellent water resistance and durability as a water-dispersible acrylic emulsion resin. When it is hardened by coating all structures affected by solar energy such as roof, asphalt shingles roof, roof top of building structure, it exhibits high efficiency heat shielding effect by solar reflection, radiation, and heat energy blocking with heat shielding pigment, heat dissipating pigment and hollow pigment. Energy-saving asphalt shingles roof coating composition and its manufacturing method, and the waterproof construction method using energy-saving asphalt shingles roof coating composition that exhibits a high heat shielding performance, which has a great effect on reducing the energy load caused by the temperature increase inside the building. will be.

In general, asphalt shingle is a kind of roofing material which is cut to a prescribed size by applying coating asphalt to the front and back of reinforcing core made of glass fiber and coating various colors of mineral on the surface. Compared to light weight, flexible material itself, easy construction, and minimizing damage to the roof even in earthquakes and strong winds are widely used.

However, the asphalt shingle installed on the roof has the disadvantage that the mineral coating on the upper part is detached or discolored after a certain period of time, and the water leakage is reduced due to the deterioration of the waterproof performance.

In addition, asphalt shingles are mainly waterproof and have little heat shielding or insulation effect, so they accept the solar energy in summer and raise the indoor temperature, causing the problem of cooling load, and some parts are damaged or damaged by strong wind. Often occurs.

Therefore, there is a cost of dismantling and re-installation, and there is a problem that the risk of work is increased because the work must be performed on the slippery roof during the dismantling and maintenance of the aging asphalt shingles.

Such a problem is applicable to all structures affected by solar energy such as asphalt shingle roofs as well as roofs and rooftops of building structures.

In order to solve the above problem, research on heat-resistant waterproofing paint that can be applied to all structures affected by solar energy such as asphalt shingle is needed. Therefore, it is urgently needed to study the composition that can block the rise of the internal temperature of the building and can be applied to the excellent durability, waterproofness and asphalt shingle material.

Korean Patent Publication No. 10-2012-0131135 (2012.12.04.) Korean Patent Registration Publication No. 10-1201850 (2012.11.09) Korean Patent Registration Publication No. 10-1114278 (2012.02.02) Korean Patent Registration Publication No. 10-0759166 (2007.09.10)

An object of the present invention for solving the above problems is to apply an energy-saving coating composition that ensures excellent durability and waterproof properties for the rapid repair / reinforcement of all structures affected by solar energy, including aging asphalt shingles roof To provide an energy-saving asphalt shingles roof coating composition and a method of manufacturing the same, and an energy-saving asphalt shingles roof coating composition exhibiting an efficient heat shielding effect in the manner of solar reflection, absorption heat radiation and thermal insulation.

The present invention to achieve the object as described above and to perform the problem for removing the conventional defects in the asphalt shingle roof coating composition applied for the heat shielding of the asphalt shingle roof from solar energy, water-dispersible acrylic emulsion resin 25 ~ 45 wt%, water 10-18 wt%, defoamer 0.2-2 wt%, plasticizer 1-5 wt%, calcium carbonate 10-20 wt%, heat shield pigment 7-13 wt%, heat dissipation pigment 1-5 wt%, dispersant 0.2 ~ 2 wt%, hollow pigment 7 ~ 13 wt%, thickener 0.1 ~ 1 wt%, film forming agent 0.5 ~ 3.5 wt%, EPDM chip 10 ~ 20 wt% energy-saving asphalt shingles roof coating composition Is achieved by providing

In a preferred embodiment of the present invention, the heat shield pigment may be made of a compound of zirconium and aluminum.

In a preferred embodiment, the heat dissipating pigment is at least one oxide selected from the group consisting of titanium oxide, zinc oxide, indium oxide, tin oxide, antimony tin oxide and indium tin oxide and;

It may be a composite metal oxide containing at least one oxide selected from the group consisting of molybdenum oxide (MoO ₃ ), tantalum oxide (Ta ₂ O ₅ ), vanadium pentoxide (V ₂ O ₅ ) and niobium oxide (Nb ₂ O ₅ ) have.

In a preferred embodiment of the present invention, each oxide may have a particle size of 50 ~ 600nm.

The present invention is a preferred embodiment, the hollow pigment is a hollow glass bubble reflects the wavelength of 300 ~ 2,500nm in the near infrared wavelength region of 90% or more, and after drying to generate a ceramic bubble in the coating film to absorb and dissipate thermal energy by thermal energy conduction You can use blocking.

The present invention is a preferred embodiment, the energy-saving asphalt shingles roof coating composition is characterized in that the total solar reflectance is 40% or more using a UV Visible spectro photometer (spectrometer, Jasco V-670, wavelength 250 ~ 2500nm) It is done.

In another embodiment, the water dispersion acrylic emulsion resin 25 to 45 wt% 10 to 18 wt% water, antifoaming agent 0.1 to 1 wt%, plasticizer 1 to 5 wt% in a stirrer and 300 to 500 rpm Stirring the resin uniformly at a speed of 10 to 15 minutes;
While stirring the mixture prepared in the resin stirring step, calcium carbonate 10 ~ 20 wt%, heat shield pigment 7 ~ 13 wt%, heat dissipating pigment 1 ~ 5 wt%, dispersant 0.2 ~ 2 wt% in a stirrer and 500 ~ 1000rpm A dispersion step of performing the dispersion for 1 to 2 hours at a speed;
The hollow pigment 7 ~ 13 wt%, thickener 0.1 ~ 1 wt%, film forming agent 0.5 ~ 3.5 wt% to the dispersion formed in the dispersion step in a stirrer and stirred uniformly for 10 to 15 minutes at a speed of 300 ~ 500 rpm Hollow pigment input step;
Consisting of 0.1 ~ 1 wt% of the antifoaming agent, 10 ~ 20 wt% EPDM chip in the composition of the hollow pigment input step into the stirrer and EPDM chip stirring step of uniformly stirring for 10 to 15 minutes at a speed of 300 ~ 500 rpm; It is achieved by providing a method for producing an energy-saving asphalt shingles roof coating composition.

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In another aspect, the present invention,

A background clean-up step of removing foreign substances from the surface of the asphalt shingle roof to be waterproofed and repairing the parts requiring cracks and reinforcement;

 A primer coating step of constructing a primer for reinforcing the base and enhancing adhesion to the base surface;

After applying the energy-saving asphalt shingles roof coating composition to give a heat shielding performance and a waterproofing performance on the primer layer; is achieved by providing an energy-saving waterproof construction method comprising a.

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The present invention is a preferred embodiment, the primer may be any one selected from the energy-saving asphalt shingle roof coating composition, epoxy primer, water-soluble epoxy primer, aqueous acrylic primer.

The present invention is a preferred embodiment, the primer is applied to a coating film thickness of 40 ~ 50㎛, the energy-saving asphalt shingles roof coating composition may be applied to a thickness of 0.5 ~ 2mm in the opposite direction of the water flow direction.

As described above, the present invention is an energy-saving asphalt shingle roof coating composition having a waterproof performance applicable to an existing asphalt shingle roof layer or a new waterproofing system, and is formed in a coating form on an asphalt shingle roof to form a waterproof layer having heat shielding performance. As a result, energy savings and maintenance costs can be reduced.

In addition, the present invention forms a seamless coating layer, and by seamlessly integrating the seam and the base surface of the shingles with excellent adhesion to the asphalt shingle improves the waterproofing performance, it can minimize the damage and damage due to weathering and natural disasters and,

In addition, the present invention is an environmentally friendly water-soluble composition is free of VOCs (volatile organic compounds) is not harmful to workers during construction, and can be easily and simply installed by anyone, such as a brush, Laura, and

In addition, the energy-saving asphalt shingles roof coating composition, as described above, can effectively reflect solar heat, radiate absorbed heat, and effectively block heat conduction, thereby reducing energy load due to summer cooling, and waterproof layers made of various materials. It can be attached without any influence on material characteristics, and it can be installed directly on the existing asphalt shingle roof, so it is a useful invention with economic advantages because it does not cost dismantling and dismantling. It is an expected invention.

1 is a flow chart of the energy saving asphalt shingle roof coating composition according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The energy saving asphalt shingle roof coating composition of the present invention is a coating composition that can be applied to all structures affected by solar energy such as not only asphalt shingle roofs but also roofs and rooftops of building structures. Because of this, it is effective to reduce the energy load due to the temperature rise inside the building. Such energy-saving coating waterproof composition is composed of water-dispersible acrylic emulsion resin, water, film forming agent, plasticizer, calcium carbonate, heat shield pigment, heat dissipating pigment, hollow pigment, dispersant, antifoaming agent, thickener and EPDM chip.

The water-dispersible acrylic emulsion resin is an acrylic copolymer prepared by adding water to the acrylic resin to disperse the low molecular weight resin having a number average molecular weight of 1,000 or less.

 The aqueous acrylic emulsion has high pigment adsorption, color retention, excellent water resistance and interlayer adhesion, and is not sensitive to temperature and humidity changes.

The water contained in the composition is generally used as industrial water to control the working viscosity, VOCs, diluent.

The heat shield pigment is a pre-treated pigmented pigment made of a compound of zirconium and aluminum has a characteristic that can maximize the heat shielding effect due to high solar reflectance and long wave reflectance.

The heat dissipating pigment is a composite metal oxide having a particle size of 50 to 600 nm at least selected from the group consisting of titanium oxide, zinc oxide, indium oxide, tin oxide, antimony tin oxide and indium tin oxide. At least one oxide and at least one selected from the group consisting of molybdenum oxide (MoO ₃ ), tantalum oxide (Ta ₂ O ₅ ), vanadium pentoxide (V ₂ O ₅ ) and niobium oxide (Nb ₂ O ₅ ) having a particle size of 50 to 600 nm. It consists of one oxide.

The heat dissipating pigment refers to a composite metal oxide pigment having high heat dissipation and good heat dissipation.

The hollow pigment is a hollow glass bubble that reflects more than 90% of the 300 ~ 2,500nm wavelength of the near infrared wavelength region, and serves to block the conduction of thermal energy by absorbing and dissipating thermal energy by generating ceramic bubbles in the coating film after drying.

The EPDM chip is formed by pulverizing the recycled EPDM in the form of a chip, and is made of a rubber material to improve elasticity and sliding performance, form a three-dimensional appearance, and increase utilization of renewable resources.

Hereinafter, the coating composition for the energy-saving asphalt shingle roof will be described.

The energy-saving asphalt shingle roof coating composition is 25 ~ 45 wt% water dispersion acrylic emulsion resin, 10 ~ 18 wt% water, defoamer 0.2 ~ 2 wt%, plasticizer 1 ~ 5 wt%, calcium carbonate 10 ~ 20 wt% , Thermal Pigment 7 ~ 13 wt%, Thermal Pigment 1 ~ 5 wt%, Dispersant 0.2 ~ 2 wt%, Hollow Pigment 7 ~ 13 wt%, Thickener 0.1 ~ 1 wt%, Film Formant 0.5 ~ 3.5 wt%, EPDM Chip 10 ˜20 wt%.

The water-dispersible acrylic emulsion resin is to be used as an acrylic copolymer in the range of 25 to 45 wt% based on 100 wt% of the total composition. If the amount thereof is less than 25wt%, the viscosity is high, so the workability is not easy. If the amount thereof is more than 45wt%, the viscosity is low and flows down.

As the general industrial water, the water is preferably used in the range of 10 to 18 wt% based on 100 wt% of the total composition. If the amount is less than 10 wt%, the workability may be lowered due to high viscosity, and when used in excess of 18 wt%, workability may be lowered due to the low viscosity.

The antifoaming agent is an additive for removing bubbles generated during the preparation of the composition, it is preferable to use in the range of 0.2 ~ 2 wt% with respect to 100 wt% of the total composition. When the amount of the antifoaming agent is used less than 0.2 wt%, it is difficult to remove bubbles, thereby decreasing the physical properties of the composition. When the amount of the antifoaming agent is used above 2 wt%, the effect of removing bubbles increases but gives a slip property to the surface to cause craters on the surface. have.

The plasticizer is an additive for imparting flexibility of the dried coating film, and the amount thereof is preferably used in the range of 1 to 5 wt% based on 100 wt% of the total composition. If the amount of the plasticizer is less than 1 wt%, the viscosity is high and the workability is lowered. If it is used more than 5 wt%, there is a problem in the flexibility of the cured product.

The calcium carbonate is preferably used in the range of 10 to 20 wt% with respect to 100 wt% of the total composition. When the amount of the calcium carbonate used is less than 10 wt%, a problem occurs that the formed coating film flows down, and when used in excess of 20 wt%, there is a problem in that the workability is decreased by increasing the viscosity of the composition.

The heat shield pigment is preferably used in the range of 7 to 13 wt% with respect to 100 wt% of the total composition. When the amount of the heat shield pigment used is less than 7 wt%, the solar heat reflecting performance is lowered, and when used in excess of 13 wt%, there is a problem in that the workability is decreased by increasing the viscosity of the composition.

The heat dissipating pigment is preferably used in the range of 1 to 5 wt% with respect to 100 wt% of the total composition. When the amount of the heat dissipating pigment is less than 1 wt%, it is difficult to exhibit a heat dissipation effect, and when it is used in excess of 5 wt%, the problem of deterioration in dispersibility occurs by increasing the viscosity of the composition.

The dispersant is an additive for facilitating the dispersion of the heat shield pigment, it is preferable to use in the range of 0.2 ~ 2 wt% with respect to 100 wt% of the total composition. When the amount of the dispersant used is less than 0.2 wt%, the dispersing effect of the pigment is lowered. When the dispersant is used at 2 wt% or more, the dispersing effect is increased, but the physical properties of the composition may be reduced.

The hollow pigment is preferably used in the range of 7 to 13 wt% with respect to 100 wt% of the total composition. When the amount of the hollow pigment used is less than 7 wt%, it is difficult to effectively exhibit the thermal insulation performance, and when used in excess of 13 wt%, a large amount of bubbles are formed in the cured coating film, thereby deteriorating the appearance.

The thickener is an additive used to adjust the viscosity of the composition, it is preferable to use in the range of 0.1 to 1 wt% with respect to 100 wt% of the total composition. If the amount of the thickener is added less than 0.1 wt%, the viscosity is low, so that the composition is difficult to flow down to form a film, and when it is added in excess of 1 wt%, the viscosity of the composition is increased to cause the problem of deterioration of the workability.

The film forming agent is an additive used to delay the drying of the composition to prevent drying of the composition during preparation and to maintain an appropriate drying time after construction, which is used in the range of 0.5 to 3.5 wt% based on 100 wt% of the total composition. desirable. If the amount of the film forming agent is added less than 0.5 wt%, the effect of preventing drying is not exerted. If the amount of the film forming agent is used more than 3.5 wt%, drying is delayed, making the coating film difficult.

The EPDM chip is preferably used in the range of 10 to 20 wt% with respect to 100 wt% of the total composition. When the amount of the EPDM chip used is less than 10 wt%, the sliding performance of the surface is reduced and the stereoscopic effect of the surface is lowered. When the amount of the EPDM chip is used more than 20 wt%, the adhesion to the substrate may be reduced due to the high surface roughness.

Hereinafter, a manufacturing method of the coating composition for the energy saving asphalt shingle roof will be described with reference to FIG. 1. As shown is an energy-saving asphalt shingles roof coating composition manufacturing method according to an embodiment of the present invention,

10 to 18 wt% of water, 0.1 to 1 wt% of antifoam, and 1 to 5 wt% of plasticizer were added to the stirrer and stirred uniformly for 10 to 15 minutes at a speed of 300 to 500 rpm. Resin stirring step (S100) and;

 While stirring the mixture prepared in the resin stirring step (S100), calcium carbonate 10 to 20 wt%, heat shield pigment 7 to 13 wt%, heat dissipating pigment 1 to 5 wt%, dispersant 0.2 to 2 wt% was added to the stirrer 500 Dispersing step (S200) for performing 1 to 2 hours dispersion at a speed of ~ 1000rpm;

The hollow pigment 7 ~ 13 wt%, thickener 0.1 ~ 1 wt%, film forming agent 0.5 ~ 3.5 wt% to the dispersion prepared in the dispersing step (S200) in a stirrer and 10 to 15 minutes at a speed of 300 ~ 500 rpm Hollow pigment input step (S300) and uniformly stirred;

Into the composition of the hollow pigment input step (S300), the EPDM chip stirring step of adding 0.1 ~ 1 wt% antifoaming agent, 10 ~ 20 wt% EPDM chip to the stirrer and uniformly stirring for 10 to 15 minutes at a speed of 300 ~ 500 rpm ( S400); to manufacture through.

The reason for limiting the numerical value of the composition to be added to each step is as described above, so the duplicate description is omitted.

Hereinafter will be described in detail with respect to the waterproof construction method using the energy-saving asphalt shingle roof coating composition according to an embodiment of the present invention.

Waterproof construction method according to an embodiment of the present invention by using the energy-saving asphalt shingle roof coating composition of the present invention prepared according to the manufacturing method to block the solar heat on the roof or roof finished with asphalt shingle to increase the temperature inside the building As a method of constructing an energy saving coating system that suppresses the primer, energy saving asphalt shingle roof coating composition was sequentially constructed from the bottom.

Specifically, the energy-saving waterproof construction method of the present invention removes foreign substances on the surface to be waterproofed, such as structures affected by solar energy such as roofs and roofs of building structures including asphalt shingle roofs, and cracks and reinforcement. A background cleanup step of repairing the necessary parts;

A primer coating step of constructing primers for reinforcing the substrates and enhancing adhesion to the base surface using rollers, sprays, and the like;

Thereafter, applying the energy-saving asphalt shingles roof coating composition to give the heat shielding performance and waterproofing performance on the primer layer using a brush or a roller.

Specifically, the asphalt shingle roof surface or the concrete roof of a new building to be waterproofed should be clean and smooth. At this time, the uneven portion is flattened to clean the dirt, dust and sand.

 If necessary, non-woven fabrics should be coated with water-based acrylic primers or water-soluble epoxy primers on waterproof fragile areas such as asphalt shingles, aging concrete exposed areas, and vulnerable concrete areas (joints, drains, corners, cracks, etc.). And reinforce with adhesive composition or special sealant.

In addition, if necessary, the primer was applied to the surface of the object as a primer for enhancing the adhesion to the base surface and the adhesion to the base surface, using a roller, spray, etc., using a coating film thickness of 40 ~ 50㎛.

Thereafter, the energy-saving asphalt shingle roof coating composition which provides heat shielding performance and waterproofing performance on the primer layer or asphalt shingle roof is constructed with a thickness of 0.5 to 2 mm in a direction opposite to the water flow direction using a brush or a roller. If the composition is less than 0.5mm thick, the heat shielding performance and waterproof performance is reduced, when the construction exceeds 2mm thickness, the number of work is increased, and the weight of the roof layer can increase the impact on the building.

The primer is preferably a thin coating of the energy-saving asphalt shingle roof coating composition prepared in accordance with the present invention is good adhesion as a homogeneous material.

Of course, in addition to other embodiments of the primer constituting the waterproof system, any one selected from an epoxy primer, a water-soluble epoxy primer, and an aqueous acrylic primer may be used.

Energy-saving coating waterproof composition of the present invention is water-soluble, there is no VOCs, there is no harmful gas generated during construction, harmless to the human body, there is little limitation of construction, heat shielding, heat insulation, durability, water resistance, etc. It is a functional energy-saving coating system that reduces indoor energy load by constructing waterproofing system on building roof or roof with asphalt shingle using excellent heat shielding composition with excellent physical properties and excellent adhesion with asphalt shingle.

The following is a preferred embodiment of the present invention. However, this embodiment will be described through specific embodiments of the present invention, and the present invention is not limited only to the following examples.

(Example 1)

While stirring using a stirrer, 10.70 wt% of water, 0.15 wt% of antifoaming agent, and 2.05 wt% of plasticizer were added to 32.8 wt% of water-dispersible acrylic emulsion resin based on 100 wt% of the final composition, and stirred for 10 minutes at a speed of 350 rpm. Stir evenly.

After stirring the mixture was added 17wt% calcium carbonate, heat shield pigment 7.40wt%, heat dissipating pigment 2.05wt%, dispersant 0.30wt% in a stirrer and was dispersed for 1 hour at a speed of 1000rpm.

Thereafter, 8.20 wt% of the hollow pigment, 0.40 wt% of the thickener, and 0.80 wt% of the film forming agent were added to the dispersion, and stirred uniformly for 10 minutes at a speed of 400 rpm.

Thereafter, 0.15 wt% of the antifoaming agent and 18 wt% of the EPDM chip were added to the stirred composition, and stirred uniformly for 10 minutes at a speed of 400 rpm.

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Table 1 below is a table showing each component of the composition according to Comparative Example 1 compared with each component of the composition according to Example 1.

In Table 1, 1) is a water-dispersible acrylic emulsion resin (Noro Paint Co., Ltd.), 2) is general industrial water, 3) is a polysiloxane antifoaming agent (BYK-CHEMI), 4) is an environmentally friendly plasticizer (benzoplex- 50, Shinhan Fine Chemical Co., Ltd.), 5) Sieving pigments (calcium carbonate, Woojin Chemical), 6) Heat shielding pigment (White: Tipaque CR-99, Ishihara Co., Ltd.), 7) Heat dissipating pigment (Metallic inorganic pigment) , Shepard), 8) carboxylic acid wet dispersant (BYK-CHEMI), 9) hollow pigment (hollow glass bubble, 3M), 10) polyurethane thickener (BYK-CHEMI), 11) (Ethylene glycol, Honam Petrochemical), and 12) EPDM chip (Shinwoo Environment).

(Performance Evaluation Example 1)

The compositions of Example 1 and Comparative Example 1 were respectively coated with a dry coating thickness of 50 μm and naturally dried at room temperature for 7 days, and then the physical properties were measured by the following method, and the results are shown in Table 2.

1) How to measure water resistance

The film is coated on a glass plate (60mm X 140mm X 5mm) with a film applicator to have a dry coating thickness of 50 μm, and then naturally dried at room temperature for 7 days, and then immersed in distilled water for 168 hours, and then visually inspected for abnormalities of the coating film.

2) How to measure alkali resistance

Apply a film applicator on the glass plate (60mm X 140mm X 5mm) to make the dry film thickness 50㎛, and then naturally dry at room temperature for 7 days and immerse it in 5% aqueous sodium hydroxide solution for 168 hours. Visually inspect

3) Physical property measurement method

According to the test method of acrylic rubber of KS F 3211, the specimens were prepared to have a thickness of 1 mm dried, and then dried at room temperature for 7 days and the tensile strength, elongation, and tear strength were measured with a universal testing machine.

4) How to measure accelerated weather resistance

According to Test Method 3231 of KS M 5000, the specimen is exposed to accelerated weathering test equipment (ATLAS Ci5 / DMC Weather-O-Meter) for 250 hours and visually inspected for abnormal appearance of the coating.

5) Fatigue Resistance Measurement Method

After making and testing the test specimens according to the fatigue test of KS F 2622, visually inspect for abnormalities in the appearance of the coating.

4) Wind pressure resistance measurement method

After the test piece is manufactured and tested according to the wind pressure resistance test method of KS F 2622, visual inspection of the abnormality of the coating film is performed.

Referring to Table 2, the specimen prepared using the energy saving asphalt shingle roof coating composition of Example 1 can be seen that the physical properties are superior to the specimen prepared using Comparative Example 1.

(Performance Evaluation Example 2: Measurement of Thermal Resistance)

The compositions of Example 1 and Comparative Example 1 were each coated with a dry coating thickness of 50 μm, and then naturally dried at room temperature for 7 days, and then the physical properties were measured by the following method, and the results are shown in Table 3 below.

Using paint or spray on EGI steel plate (300mm X 300mm X 0.5mm), paint to make dry film thickness of 50㎛, and then naturally dry at room temperature for 7 days to make test piece open with roof material made of styrofoam. Seal the roof of the model house (250mm x 250mm x 150mm) to prevent external air from entering. Irradiate an infrared lamp (Osram, E27 screw base, 250W) for 30 minutes at the top of the test piece for 30 minutes, and measure the roof surface and room temperature by time with digital temperature sensors (OMEGA, Model HH21). Relative thermal insulation performance is measured as the temperature difference. At this time, the heat shield performance measuring device is installed in a closed place.

Referring to Table 3, it can be seen that the roof surface temperature difference and the room temperature difference are larger for 30 minutes when the composition of Comparative Example 1 is used than when the composition of Example 1 is used.

Based on the results, it can be seen that the heat shielding performance of Example 1 to which the heat shielding pigment, the heat dissipating pigment and the hollow pigment of the composition is applied.

(Performance Evaluation Example 3: Measurement of Total Solar Reflectance)

The test conditions were 20 cm × 30 cm in width and length, respectively, and the thickness of 3.0 mm was applied to the glass of Example 1 and Comparative Example 1 so that the dry film thickness was 50 μm and dried at room temperature for 7 days. Was measured by using a UV Visible spectro photometer (spectrometer, Jasco V-670, wavelength 250 ~ 2500nm), and the results are shown in Table 4.

Referring to Table 4, it can be seen that the coating film formed by the energy-saving asphalt shingle roof coating composition of Example 1 has an excellent effect on solar reflection with a total solar reflectance of 40% or more.

(Heatproof waterproof construction method)

Waterproof construction method according to an embodiment of the present invention is as follows.

First, clean and smooth the asphalt shingle roof surface or concrete roof of the building to be waterproofed. At this time, the uneven portion is flattened to clean the dirt, dust and sand.

In addition, water-resistant fragile parts such as asphalt shingle damaged parts, aging concrete exposed areas, and fragile concrete areas (joint pours, drains, corners, cracks, etc.) are coated with non-woven fabrics after applying an aqueous acrylic primer or a water-soluble epoxy primer. Reinforcement can be made using the composition or a dedicated sealant.

If necessary, the primer was applied to the surface of the object as a primer for enhancing the adhesion to the base surface and the adhesion to the base surface.

Thereafter, the energy-saving asphalt shingle roof coating composition which provides heat shielding performance and waterproofing performance on the primer layer or asphalt shingle roof is constructed with a thickness of 0.5 to 2 mm in a direction opposite to the water flow direction using a brush or a roller.

According to the waterproof construction method according to an embodiment of the present invention, the construction in a similar form to the existing waterproof construction method, but when the energy-saving asphalt shingle roof coating composition is hardened to exhibit a high heat shielding performance to increase the internal temperature of the building It has a great effect on reducing energy load.

The present invention configured as described above can be applied to all structures affected by solar energy, such as roofs and rooftops of building structures, and is composed of a waterproof system, thereby providing an excellent waterproof construction method that exhibits waterproof performance.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

Claims (15)

An asphalt shingle roof coating composition applied for thermal insulation of asphalt shingle roof from solar energy,
Water dispersion acrylic emulsion resin 25 ~ 45 wt%, water 10 ~ 18 wt%, defoamer 0.2 ~ 2 wt%, plasticizer 1 ~ 5 wt%, calcium carbonate 10 ~ 20 wt%, heat shield pigment 7 ~ 13 wt%, heat dissipating pigment 1 to 5 wt%, dispersant 0.2 to 2 wt%, hollow pigment 7 to 13 wt%, thickener 0.1 to 1 wt%, film forming agent 0.5 to 3.5 wt%, EPDM chip, characterized in that composed of 10 to 20 wt% Energy saving asphalt shingle roof coating composition.
The method according to claim 1,
The heat shield pigment is energy saving asphalt shingle roof coating composition, characterized in that consisting of a compound of zirconium and aluminum.
The method according to claim 1,
The heat dissipation pigment,
At least one oxide selected from the group consisting of titanium oxide, zinc oxide, indium oxide, tin oxide, antimony tin oxide, and indium tin oxide;
It is a composite metal oxide containing at least one oxide selected from the group consisting of molybdenum oxide (MoO ₃ ), tantalum oxide (Ta ₂ O ₅ ), vanadium pentoxide (V ₂ O ₅ ) and niobium oxide (Nb ₂ O ₅ ) An energy-saving asphalt shingles roof coating composition.
The method according to claim 3,
Each oxide is an energy-saving asphalt shingle roof coating composition, characterized in that the particle size is used 50 ~ 600nm.
The method according to claim 1,
The hollow pigment is a hollow glass bubble that reflects more than 90% of the 300 ~ 2,500nm wavelength of the near infrared wavelength range, and after drying, to generate ceramic bubbles in the coating film to absorb and dissipate heat energy to cut off the thermal energy conduction Type asphalt shingle roof coating composition.
The method according to claim 1,
The energy-saving asphalt shingles roof coating composition is an energy-saving asphalt shingles roof, characterized in that the total solar reflectance is more than 40% using a UV Visible spectro photometer (spectrometer, Jasco V-670, wavelength 250 ~ 2500nm) measuring instrument Coating composition.
10 to 18 wt% of water, 0.1 to 1 wt% of antifoam, and 1 to 5 wt% of plasticizer were added to the stirrer and stirred uniformly for 10 to 15 minutes at a speed of 300 to 500 rpm. Resin stirring step;
While stirring the mixture prepared in the resin stirring step, calcium carbonate 10 ~ 20 wt%, heat shield pigment 7 ~ 13 wt%, heat dissipating pigment 1 ~ 5 wt%, dispersant 0.2 ~ 2 wt% in a stirrer and 500 ~ 1000rpm A dispersion step of performing the dispersion for 1 to 2 hours at a speed;
The hollow pigment 7 ~ 13 wt%, thickener 0.1 ~ 1 wt%, film forming agent 0.5 ~ 3.5 wt% to the dispersion formed in the dispersion step in a stirrer and stirred uniformly for 10 to 15 minutes at a speed of 300 ~ 500 rpm Hollow pigment input step;
Consisting of 0.1 ~ 1 wt% of the antifoaming agent, 10 ~ 20 wt% EPDM chip in the composition of the hollow pigment input step into the stirrer and EPDM chip stirring step of uniformly stirring for 10 to 15 minutes at a speed of 300 ~ 500 rpm; Method for producing an energy-saving asphalt shingles roof coating composition.
delete delete delete delete A background clean-up step of removing foreign substances from the surface of the asphalt shingle roof to be waterproofed and repairing the parts requiring cracks and reinforcement;
A primer coating step of constructing a primer for reinforcing the base and enhancing adhesion to the base surface;
Since the step of applying the energy-saving asphalt shingles roof coating composition according to any one of claims 1 to 5 to give the heat shielding performance and waterproofing performance on the primer layer; Energy-saving waterproof construction method characterized in that consisting of.
delete The method of claim 12,
The primer is energy-saving waterproof construction method using any one selected from the energy-saving asphalt shingle roof coating composition, epoxy primer, water-soluble epoxy primer, aqueous acrylic primer.
The method of claim 12,
The primer is applied to the coating film thickness of 40 ~ 50㎛, the energy-saving asphalt shingle roof coating composition is applied to the energy-saving waterproof construction method characterized in that the coating in the 0.5 to 2mm thickness in the opposite direction of the water flow direction.

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