KR101458020B1 - Non-slip paved material composition having excellent heat-shielding property - Google Patents

Abstract

The present invention relates to a membrane pavement material, and more particularly, to a membrane pavement material having excellent non-slip and heat-shielding properties. A membrane pavement material according to the present invention includes component A as granule having a heat-shielding property, and at least one or two kinds of mixtures from the group consisting of epoxy based resin, urethane based resin and acrylic based resin as component B. The granule having a heat-shielding property, which is a combination of a first white reflectance coating surface and a second reflectance coating surface practically representing reflectance of 20% or more at all wavelengths in the range of 770 nm to 2200 nm, is formed by sequentially coating inorganic substrates of a granule type. According to the present invention, the membrane pavement material has excellent non-slip and heat-shielding properties without any yellowing phenomenon.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a non-slip packaging material,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a coating film packaging material, and more particularly, to a coating film packaging material having excellent non-slip characteristics as well as heat shielding characteristics.

Generally, roads packed with asphalt or concrete provide a comfortable and good ride quality when the vehicle is running, because the road surface is solid and flat.

However, such asphalt roads and concrete roads are slippery in the case of snow or rain, which hinders the safe running of the vehicle. Especially in the case of curves and slopes.

Accordingly, in recent years, the anti-slip layer is formed to a predetermined thickness on the road surface of an asphalt road or a concrete road using aggregates and joints, thereby increasing frictional force with a tire of a vehicle to prevent slipping.

At present, according to the domestic road safety facility standard, the slip-resistant aggregate as described above is a lightweight aggregate having a high coefficient of friction and excellent resistance to abrasion, and has a Mohs hardness of 8.0 or more and a particle diameter of about 5 mm. For this purpose, slag, silica, and waste glass produced during the steelmaking process in steel mills are mixed with binders and attached to the road surface.

A representative example of the related art is disclosed in Korean Patent No. 10-165629 (registered on September 17, 1998, entitled " Method for producing aggregate for slip prevention facility using steel making slag (SLH) -454160 (registered on October 14, 2004, entitled " Method for producing slip-resistant aggregate using copper slag "). A representative example of another related technology is disclosed in Korean Patent No. 10-171675 (registered on October 21, 1998, entitled "Anti-slip Agent for Pavement Construction Method and Anti-Slip Agent Used therefor") . The former is for making a slip prevention facility using steel slag or copper slag, and the latter is for applying a slip preventing agent including aggregate directly on the road surface in a liquid phase.

In the case of the non-slip pavement layer constructed using the techniques disclosed in the above-described prior art documents, the solar heat is transmitted to the asphalt or concrete as the ground surface in the summer when the solar radiation heat is strong, Asphalt or concrete itself changes the terrain of the road surface, resulting in loss of smoothness. This, in itself, not only leads to a dangerous situation, but also causes deepening of the tropical night phenomenon to the surroundings.

To improve this, Korean Patent Registration No. 10-0855315 (registered on Aug. 25, 2008, entitled " Roadside non-slip packaging material composition and method of construction having a heat shielding function ") and Korean Patent No. 10-0856420 (2008 Registered on Aug. 28, 2008, entitled "Binder for preventing slipping of road with heat resistance"), a slip prevention function was added in addition to the slip prevention function.

However, in these cases, there arises a problem that the anti-slip function is deteriorated due to insufficient wear resistance due to the component for adding the heat shield function.

Korean Registered Patent No. 10-165629 (entitled " Method of producing aggregate for slip prevention facility using steel making slag (SLH) "registered on September 17, 1998) Korean Registered Patent No. 10-454160 (entitled " Method for producing slip-resistant aggregate using copper slag, " Korean Patent No. 10-171675 (registered on October 21, 1998, entitled " Anti-slip agent for pavement road construction and anti-slip agent used therein ") Korean Registered Patent No. 10-0855315 (registered on August 25, 2008, entitled " Roadside non-slip packaging material composition and method of construction having a heat shielding function ") Korean Registered Patent No. 10-0856420 (registered on Aug. 28, 2008, entitled "Binder for road slip prevention having heat resistance")

The present invention has been made to solve the problems of the prior art, and an object of the present invention is to provide a coating material having an excellent appearance have.

To achieve these and other objects,

A granule of a heat-shrinkable characteristic as the component A and a mixture of at least one member selected from the group consisting of an epoxy-based resin, a urethane-based resin and an acrylic-based resin as the component B , wherein the granules of the heat- Characterized in that the substrate is coated with a combination of a first white reflective coating layer and a second reflective coating layer exhibiting a reflectance of substantially 20% or more at all points in the wavelength range of 770 nm to 2200 nm To provide a coating film packaging material.

In the present invention, the granules of the heat-shrinkable characteristics as the component A and one or more blends of the epoxy-based resin, the urethane-based resin and the acrylic-based resin as the component B have a weight ratio of 1 to 2.5: Are mixed with each other.

In the present invention, the substrate may be selected from the group consisting of basalt, phylloquin, gabbro, silica clay, rhyolite, quartz andesite, latite, andesite, green rock, granite, silica, ), Slate, nepheline syenite, quartz, and slag.

In the present invention, the first white reflective coating surface and the second reflective coating surface are characterized by comprising the same alkali metal silicate, aluminosilicate and any borate compound as the other pigments.

In the present invention, the first white reflective coating surface and the second reflective coating surface are characterized by comprising mutually the same sodium silicate solution, kaolin clay, borax and titanium oxide, and different pigments .

Further, in the present invention, the substrate is characterized by being a mixture of quartz and quartz andesite.

According to the present invention, not only the road surface non-slip characteristic but also the differential thermal characteristic are also advantageously provided.

Hereinafter, the present invention will be described in more detail. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a," "an," and "the" include singular forms unless the context clearly dictates otherwise. Also, " comprise "and / or" comprising "when used herein should be interpreted as specifying the presence of stated shapes, numbers, steps, operations, elements, elements, and / And does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups.

The present invention relates to a coating film material excellent in road surface non-slip characteristic and heat-shield property.

Film packaging according to the invention comprises one or two or more thereof from the group consisting of a granule (granule) and the component B of the heat shield property of a resin of the resin and acrylic series of epoxy series resin, urethane series in as component A . At this time, the component A and the component B are mixed in a weight ratio of 1 to 2.5: 1.

First, the granules of the heat-shrinkable characteristics are formed on at least a portion of the outer surface of the granular substrate by a layer coated with a first white reflective coating surface and a layer coated with the first white reflective coating surface And a layer coated with a second reflective coating surface comprising a color pigment having improved near-infrared reflection properties.

That is, after primary or undercoating of the granular base material with a reflective material, secondary coating of the above-mentioned undercoating portion with a secondary coating containing a pigment other than white is applied to the granules of the heat- . The individual methods of coating the granules of the present invention are outlined in patent application No. 10-2013-0110334, filed by the Applicant and patented on January 16, 2014, which are incorporated herein by reference.

With the combination of the first white reflective coating surface and the second reflective coating surface, the substrate exhibits substantially at least 20% reflectivity at all points in the wavelength range between 770 and 2200 nm. At least about 50-60% of the incident energy from the sun includes near-infrared radiation.

The granular base material used in the present invention is an inorganic material and is selected from at least one of rock, minerals and regenerated materials. Examples of rock particles and mineral particles include basalt, phylactric rock, gabbro, siliceous claystone, rhyolite, quartz andesite, latite, andesite, greenstone, granite, sandstone, slate, nepheline syenite, , Quartz, or slag may be mentioned.

Preferably, when such an inorganic material is used, it is suitable to be crushed into particles having a diameter of about 300 micrometers to about 1800 micrometers in size.

The granular substrate reflects at least 25% of the light from the sun, and the first white reflective coated surface comprises at least 50% by volume inorganic binder.

The coatings used in providing the pigment for both the primer coating (or undercoating) and the secondary coating (or outer coating) have the same essential components except for the pigment. Such coatings are formed of pigments, alkali metal silicates, aluminosilicates and any borate compound.

Alkali metal silicates and aluminosilicates are the major components of coatings that serve as inorganic binders. That is, these components should be at least 50% of the total volume of the coating. Coatings from such slurries generally have ceramic properties.

As the alkali metal silicate, aqueous sodium silicate is preferably used. In addition, potassium silicate may be used as the alkali metal silicate. The alkali metal silicate can be represented by M ₂ O: SiO ₂ (wherein M represents an alkali metal such as Na or K or a mixture thereof). At this time, the weight ratio of SiO ₂ to M ₂ O is preferably about 1.4: 1 to about 3.75: 1. Particularly, the weight ratio of SiO ₂ to M ₂ O is particularly preferably from 2.75: 1 to about 3.22: 1. The latter is even more preferred when it is desired to obtain granules of dark colors.

The aluminosilicate is preferably a clay having the formula Al ₂ Si ₂ O ₅ (OH) ₄ . Other preferred aluminosilicates include kaolin, Al ₂ O ₃ 2SiO ₂ ? 2H ₂ O and derivatives thereof. The particle size of the clay is not critical to the present invention, but it is preferred that the coarse particles having a diameter of 0.002 mm or more are contained in an amount of 0.5% or less.

When the borate compound is included, it is preferable that the borate compound is contained at a level of about 0.5 g to 3 g per 1 Kg of the granule in granule form. As the borate compound, sodium borate is preferable, but borate compounds such as zinc borate, sodium fluoroborate and sodium tetraborate-pentahydrate can also be used.

Although the above-mentioned component A and component B are mixed, the present invention is not limited to this, and it is possible to form the base layer with the component B mixed with the mortar on the concrete or the asphalt, And it goes without saying that this also falls within the scope of the present invention.

Hereinafter, a method for producing granules of the present invention will be described.

Primary or undercoating

First, the inorganic base material in the form of granules is preheated in a rotary kiln at a temperature between 125 degrees Celsius and 140 degrees Celsius, and then coated with the slurry to form a plurality of slurry-coated inorganic granules . Water is poured into the formed inorganic granules to lower the temperature of the granules to a temperature of between 50 and 70 degrees centigrade. The slurry coated granules are then heated for a period of time at a temperature sufficient to form a plurality of ceramic coated granules. The temperature is preferably in the range of 400 to 530 degrees centigrade. The heating time is preferably 1 to 10 minutes.

Secondary or outer coating

Secondary or outer coating is performed similar to the primary or undercoating method described above, except for the pigment used.

In addition to granules having heat-shielding properties as component A as described above, the coating film packaging material according to the present invention may contain, as component B , one or two kinds of resins selected from the group consisting of an epoxy-based resin, a urethane- And mixtures thereof.

This component B has the same color as the color of the pigment applied to the granules of the above heat-shrinkable characteristics. That is, the component B according to the present invention has better heat-shading characteristics as well as improvement in road surface non-slip characteristics and durability when applied as granules of the heat-shrinkage characteristics alone. In addition, yellowing is prevented even in long-term exposure.

In addition, a glass bubble may be included as a hollow ceramic powder.

Further, a heat exchange material may be included to further improve the heat shielding property.

Hereinafter, the present invention will be described by the following examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

Example

Manufacture of granules of heat-tolerant properties as component A

1. Materials:

Sodium silicate solution

Kaolin clay

Borax

Titanium dioxide

10411 Golden Yellow, Forest Green, V-3810 Red, V-9250 Bride Blue

Quartz, lattite, quartz andesite

2. Test method

The reflectivity was measured using a Perkin Elmer Lambda 900 spectrophotometer.

3. Coating Method

The slurry components listed in Table 1 are mixed in a vertical mixer. 1000 parts by weight of the granular substrate is preheated at a temperature between 90 and 95 degrees Celsius and then mixed in an amount specified in Table 1 in a buttercult mixer. The substrates used in Examples 1 to 4 are quartz, lattite, and quartz andesite. The slurry-coated granules are calcined in a rotary kiln for 10 minutes. After firing, the granules are allowed to cool to room temperature.

ingredient Example 1 Example 2 Example 3 Example 4 Kaolin clay 22.5 15 20 20 Sodium silicate solution 65 34 40 40 water 15 15 15 15 CR 800 titanium dioxide 8.75 3 0.8 10241 Forest Green 14 1.6 10411 Golden Yellow 1.2 4 V-13810 Red 0.2 V-9250 Bright Blue 0.6 Borax 3 One One The amount used per 1000 parts by weight of slurry 57.1 40.1 41.6 39.0 Final firing temperature (Celsius) 470 460 460 460

The following products were used as component B :

Epoxy-based resin: Ehton E-1000, ESTON E-5000, ESTON PN

Urethane series resin: SPOTTAN ultra high hard urethane

Acrylic resin: Neo coating of Geumgang Paint Co., Ltd.

Examples 1 to 4

Preparation of coated granules:

The granules were coated as in the coating method described above and the reflectance was measured using the test method described above. The results are shown in Table 2 below.

ingredient Example 1 Example 2 Example 3 Example 4 reflectivity 20.53% 29.07% 23.83% 20.21%

Examples 5 to 9

Coating material manufacturing

As the component A prepared through the above example, the granules of the heat-shrinkable characteristics and the case of the epoxy resin as the component B, ESTON E-1000, ESTON E-5000 and ESTON PN, (Example 8) in the case of a urethane-based resin, and Neo coating agent of Kumkang Paint Co., Ltd. in the case of an acryl-based resin in a weight ratio of 2: 1 Weight ratio, and then tested on a test road of a certain area.

evaluation

- Evaluation of thermal characteristics

The coating material prepared according to the present invention was directly applied to empty spaces and evaluated. At this time, the evaluation method evaluates the heat-shielding effect by measuring the temperature at the same time zone between 2-3 pm and at the same time zone between 7-8 pm by measuring the temperature on the asphalt road on which the coating material of the present invention is installed, Respectively. The temperature measurement was performed using a measuring instrument used in Patent Application No. 10-2013-0110334. The results are shown in Table 3 below.

General road Example 5 Example 6 Example 7 Example 8 Example 9 2 to 3 pm 52.1 degrees Celsius 47.2 degrees Celsius 47.3 degrees Celsius 47.4 degrees Celsius 48.3 degrees Celsius 48.2 degrees 7 to 8 pm 65.3 degrees Celsius 55.7 degrees Celsius 55.8 degrees Celsius 55.9 degrees Celsius 56.8 degrees Celsius 56.7 degrees

- Evaluation of roadside non-slip characteristics

The slip resistance test was conducted according to the ASTM E 303 method using a British pendulum tester. The results are shown in Table 4 below.

Example 5 Example 6 Example 7 Example 8 Example 9 82 BPN 82 BPN 82 BPN 78 BPN 79 BPN

As can be seen from Tables 2 and 3, when the component A and the component B were used together, the road surface non-slip characteristic as well as the heat-shrink property was also excellent. Two months after construction, the road packaging material was visually inspected and no yellowing occurred.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the following claims. It can be understood that it is possible.

Claims (6)

A granule of a heat-shrinkable characteristic as the component A and a mixture of at least one member selected from the group consisting of an epoxy-based resin, a urethane-based resin and an acrylic-based resin as the component B , wherein the granules of the heat- A first white reflective coating layer and a second reflective coating layer are formed on an inorganic substrate at all points in the wavelength range between 770 nm and 2200 nm in order to partially or completely cover the first white reflective coating layer and the second reflective coating layer,
Wherein the first white reflective coating surface and the second reflective coating surface comprise the same alkali metal silicate, aluminosilicate and any borate compound as the other pigments. The method according to claim 1,
Wherein the component A and the component B are mixed in a weight ratio of 1 to 2.5: 1. 3. The method according to claim 1 or 2,
The substrate may be selected from the group consisting of basalt, phyllox, gabbro, siliceous clay, rhyolite, quartz andesite, latite, andesite, green rock, granite, silica sand, slate, nepheline syenite, quartz and slag. Lt; RTI ID = 0.0 > 1, < / RTI > delete A granule of a heat-shrinkable characteristic as the component A and a mixture of at least one member selected from the group consisting of an epoxy-based resin, a urethane-based resin and an acrylic-based resin as the component B , wherein the granules of the heat- A first white reflective coating layer and a second reflective coating layer are formed on an inorganic substrate at all points in the wavelength range between 770 nm and 2200 nm in order to partially or completely cover the first white reflective coating layer and the second reflective coating layer,
Wherein the first white reflective coating surface and the second reflective coating surface comprise the same sodium silicate solution, kaolin clay, borax and titanium oxide, and comprise different pigments. delete