KR20190115866A - The manufacture method of sidewalk block for information display and this produced sidewalk block for information display - Google Patents

Abstract

The present invention relates to a method for manufacturing a sidewalk block for an information display, which comprises: a board preparation step of preparing a sidewalk plate composed of one of stone, concrete, and a resin material and a notice plate composed of a transparent resin material to which light penetrates; an upper coating step of forming a primer layer on a top surface of the notice plate and forming a ceramic coating layer on the primer layer; a lower coating step of reforming roughness of a bottom surface of the notice plate and forming a notice layer on a reformed surface by printing information; and a block completion step of bonding the top surface of the sidewalk block to the bottom surface of the notice plate by using an adhesion material to complete the sidewalk block. Accordingly, the notice layer for displaying information is sealed from the outside to prevent corrosion or abrasion, thereby increasing entire durability.

Description

Manufacturing method of sidewalk block for information display and this produced sidewalk block for information display}

The present invention relates to a method for manufacturing a sidewalk block for information display, and more specifically, it is installed on the ground of public places such as sidewalks and parks where a person walks to display road names or milestones, or to guide various locations such as location guidance and exit directions of major buildings. The present invention relates to a method of manufacturing an information display sidewalk block and to an information display sidewalk block manufactured thereby to display information and to improve surface hardness.

In general, as the city expands, various roads are newly established, and as the use of underground spaces such as underground roads, subways, and underground parking lots increases, and the buildings that become larger become larger, the locations and directions of destinations can be recognized even when driving on roads, walking, and in various buildings. You will need as much information as possible.

As described above, the information on the name of the main road, the location of the main building, and the entrance and exit of large buildings such as subways, underground and underground parking lots, and the like, require signs and guides such as milestones that transmit various kinds of information in and out of urban facilities. It is common to install guide boards such as signposts at a certain height by erecting pillars so as not to obstruct traffic on the road, such as standing signboards, mainly on outdoor roadways and sidewalks.

The guide plate as described above may be advantageous in that it is manufactured in a printed form, which is relatively clear, which is excellent in visibility, and can realize a large amount of various information and photographs of live-action photos, but it is necessary to install auxiliary facilities such as pillars. It was costly and damaged by the influence of climate such as typhoon, and severely caused a variety of problems such as falling and leading to personnel accidents.

On the other hand, indoors of underground spaces and buildings have miniature milestones attached to the walls or simple letters or symbols on the ground for pedestrians to recognize. For example, on the floor of a concrete floor or sidewalk, such as arrows and braille blocks for the visually impaired, shapes and letters are formed to protrude or dent in an engraved or embossed shape on the upper surface to convey necessary information or a plurality of sidewalk blows with various colors of the upper surface. A method and configuration for transmitting necessary information by forming letters or figures by combining rock with mosaic is proposed and used in the past.

However, attaching to the wall as in the above does not match the surrounding environment of the installation place, which acts as a deterrent to environmental beautification, and the combination of blocks, etc., to be installed on the ground makes the characters or figures expressed too large As the intaglio or embossed shapes are mainly manufactured in pieces, the shape and color, and the amount of information to be conveyed are fragmentally limited, thereby preventing the necessary information from being sufficiently delivered.

In addition, the Republic of Korea Patent Publication No. 10-1302699 includes a wear-resistant coating of the stone display panel, which is fired at a high temperature of 800 ℃ due to the low production power cost and production efficiency, and also cracks in the stone when firing at high temperature There is a problem.

Republic of Korea Patent Publication No. 10-1302699 (Name of the invention: method of manufacturing a stone guide plate)

Accordingly, the present invention is to fundamentally solve the conventional problems as described above, for improving the information display so that a large amount of information, such as photorealistic pictures and various color figures and characters on the surface of the sidewalk block can be implemented with excellent identification The purpose of the present invention is to provide a method for manufacturing a sidewalk block and a sidewalk block for displaying information manufactured therein.

In order to achieve the above object, the present invention provides a method of manufacturing a display block for information display: preparing a notice board composed of a stone, concrete, resin material any one of the board, and a transparent resin material through which light is transmitted. Plate preparation step; An upper coating step of forming a primer layer on an upper surface of the notice board and forming a ceramic coating layer on the primer layer; A lower coating step of modifying a roughness on a bottom surface of the notice board and forming a notice layer by printing information on the modified surface; And a block completion step of completing the sidewalk block by adhering the top surface of the sidewalk board and the bottom surface of the notification board with an adhesive.

At this time, the ceramic coating layer according to the present invention, the reaction conditions by mixing iso-propyl alcohol (Iso-propyl alcohol), distilled water, hydrochloric acid to 3-methacryloxy propyl methyl diethoxy silane (3-Methacryloxy propyl methyl diethoxy silane) The first step of forming a first reactant according to; A second step of forming a second reactant according to reaction conditions by mixing iso-propyl alcohol, distilled water, and hydrochloric acid with vinyltriethoxy silane; A third step of forming a third reactant according to reaction conditions by mixing iso-propyl alcohol and acrylic acid to glycidyl methacrylate and methyl methacrylate; A fourth step of mixing the first reactant, the second reactant, and the third reactant to form a first liquid according to reaction conditions by mixing distilled water and hydroxyl acid; Iso-propyl alcohol, methyl trimethoxy silane and amino propyl triethoxy silane are mixed with alumina-sol to form a second liquid according to the reaction conditions. The fifth step; And a sixth step of applying the ceramic coating liquid in which the first liquid 70 to 85 wt% and the second liquid 15 to 30 wt% are mixed.

In addition, the reaction conditions according to the invention is characterized in that the mixture is stirred at 250 ~ 350RPM at room temperature while emitting 350 ~ 450khz ultrasonic wave for 20 to 90 minutes.

In the fifth step according to the present invention, a mixture of iso-propyl alcohol and methyl trimethoxy silane premixed with alumina-sol is first reacted according to the reaction conditions, and the amino propyl tree is reacted with the first reacted mixture. The oxysilane is added after, and the second reaction is carried out according to the reaction conditions.

An information display sidewalk block is produced by the method according to the invention.

On the other hand, the terms or words used in the present specification and claims are not to be construed as limiting the ordinary or dictionary meanings, the inventors should use the concept of the term in order to explain the invention in the best way. Based on the principle that it can be properly defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configuration shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all of the technical ideas of the present invention, and various alternatives may be substituted at the time of the present application. It should be understood that there may be equivalents and variations.

As described in the above configuration and operation, the present invention constitutes a notification layer for displaying information between the news panel and the notice board to prevent corrosion or abrasion, and to form a ceramic coating layer on the upper surface exposed to the outside to improve overall visibility and durability. It provides the effect of securing the life span.

1 is a flow chart showing the manufacturing method according to the invention as a whole.
2 is a cross-sectional view showing a sidewalk block manufactured by the method according to FIG. 1.
3 is a reference diagram showing a state of use of the sidewalk block according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to a manufacturing method of the information display sidewalk block as shown in Figure 1 through the plate preparation step (S10), the upper coating step (S20), the lower coating step (S30), the block completion step (S40) in sequence 2 Complete the sidewalk block (7) (8) as shown. The sidewalk block (7) (8) of the present invention is to seal the notification layer 35 for displaying the information from the outside to block corrosion or abrasion to improve the overall life.

Plate preparation step (S10)

Plate preparation step (S10) is a process of preparing the sidewalk plate 11 and the notification board 15, which is the basis of the sidewalk block (7) (8) as shown in FIG. That is, the sidewalk plate 11 performs the body role (bottom side) of the sidewalk block (7) (8), it is composed of stone or concrete or resin material. In addition, the notice board 15 performs a display (information) role (upper side) of the sidewalk blocks 7 and 8 and is made of a transparent resin material (polymer) through which light is transmitted.

The sidewalk plate 11 and the notice board 15 has a variety of shapes according to the standard, as shown in Figure 3, is configured to have a thickness set in the state superimposed on each other according to the shape. That is, it prepares to have thickness considering the height of the layered and coating substance mentioned later according to the set specification.

Upper coating step (S20)

The upper coating step (S20) is a process of forming a film to protect from the outside by coating the top of the notice board 15 as shown in FIG. That is, the primer layer 21 is formed by spraying a ceramic primer on the upper surface of the notice board 15, and then coating the coating liquid on the primer layer 21 to form the ceramic coating layer 25.

Here, in the process of forming the primer layer 21, it is preferable to warm to a surface temperature of 20 ~ 40 ℃ to improve the adhesion between the notification plate 15 and the primer. That is, when the surface temperature of the notice board 15 is 40 ° C. or higher, the adhesive strength is lowered due to the temperature rise of the applied primer, and the layer at which the primer is less than 20 ° C. penetrates into the tissue of the notice board 15 becomes thinner, rather the adhesion is low.

In addition, the ceramic coating layer 25 uses a two-component ceramic coating liquid that combines durability and flexibility and can significantly shorten the reaction time while reducing the reaction temperature. This coating solution will be described later.

Here, the ceramic coating layer 25 may be sprayed with glass bits (Glass Bit) in a state in which the coating liquid is applied to the primer. Glass grains increase the amount of light reflected to improve visibility and increase the friction of the surface to induce safe walking.

Lower coating step (S30)

The lower coating step S30 is a process of printing various information necessary for pedestrians on the bottom of the notice board 15 as shown in FIG. That is, the bottom surface of the notice board 15 is modified to have fine roughness through a pretreatment process such as corona and sanding, and the notice layer 35 is formed by printing information on the modified surface with UV ink.

At this time, after the plate preparation step (S10) after the pre-treatment process to modify the roughness on one surface or both sides of the notice board 15, after the upper coating step (S20) may be subjected to a lower coating step (S30). Of course, the order of the upper coating step (S20) and the lower coating step (S30) can also be carried out.

Block completion step (S40)

Block completion step (S40) is to complete the sidewalk block (7) (8) by integrally bonding the notice board (11) and the notification board 15 through the upper and lower coating step (S20) (S30) prepared as shown in FIG. It is a process. That is, the adhesive 41 is applied to the upper surface of the notification layer 35 or the press plate 11, which is the bottom of the notification board 15, and then integrally bonded. Here, it is preferable to use a bisphenol F-type epoxy adhesive 41 to improve the adhesion between the sidewalk plate 11 and the notification layer 35.

On the other hand, the two-component ceramic coating liquid (paint) used in the ceramic coating layer 25 of the present invention is characterized by having a durability and flexibility at the same time by reacting the glycidyl group and the amino group and self-hydrolysis of the silanol group of the alumina sol oligomer. . This coating solution is completed through the first to fifth steps.

First Step

The first step is 40-60 wt% of 3-Methacryloxy propyl methyl diethoxy silane, 35-55 wt% of Iso-propyl alcohol, 4-6 wt% of distilled water %, Hydrochloric acid 0.3 ~ 0.7% by weight of the mixture is stirred at 250 ~ 350RPM at room temperature and while emitting a 350 ~ 450khz ultrasonic wave for 20 to 90 minutes to form a first reactant (silano group) according to the following reaction formula .

In this case, when the content of 3-methacryloxy propyl methyl diethoxy silane is 40% by weight or less, silanol groups are not effectively formed, and when 60% by weight or more, silanol groups may be excessively formed and gelated. When the content of iso-propyl alcohol is less than 35% by weight, silanol groups may be excessively formed and precipitated. If the content is more than 60% by weight, silanol groups may be under-produced, resulting in poor network formation.

If the content of the remaining distilled water is less than 4% by weight hydrolysis does not occur well, it may be gelated at more than 6% by weight. And hydrochloric acid is less than 0.3% by weight of hydrochloric acid content, it may be gelated at 0.7% by weight or more.

Second Stage

In the second step, a mixture of 35 to 45 wt% of vinyltriethoxy silane, 45 to 65 wt% of isopropyl alcohol, 3 to 7 wt% of distilled water, and 0.3 to 0.7 wt% of hydrochloric acid was mixed at room temperature. While stirring at ~ 350RPM and emitting 350 ~ 450khz ultrasound for 20 to 90 minutes to form a second reactant (silano group) according to the following reaction formula.

In this case, when the mixing content of the vinyl triethoxy silane is 35% by weight or less, silanol groups may not be effectively formed, and when 45% by weight or more, silanol groups may be excessively formed and gelated. And when the mixing content of iso-propyl alcohol is less than 45% by weight, silanol groups may be excessively formed and precipitated. If the content is more than 65% by weight, silanol groups may be under-generated, resulting in poor network formation of the coating film.

If the content of the remaining distilled water is less than 3% by weight hydrolysis reaction does not occur well, the reaction solution may be gelated at more than 7% by weight. And hydrochloric acid is less than 0.3% by weight of hydrochloric acid content can be gelated at more than 0.7% by weight.

Third Step

The third step is 30-40% by weight of glycidyl methacrylate, 30-40% by weight of methyl methacrylate, 20-40% by weight of iso-propyl alcohol and 0.1-0.5% by weight of acrylic acid. The mixture was stirred at room temperature to 250 ~ 350RPM and while emitting 350 ~ 450khz ultrasonic wave for 20 to 90 minutes to form a third reactant (methacryl oligomer) according to the following reaction formula.

At this time, when the mixing content of glycidyl methacrylate is 30% by weight or less, the coating film may become hard, and when 40% by weight or more, the coating film may be soft. In addition, when the mixed content of methyl methacrylate is 30% by weight or less, drying of the coating film may be slow, and when 40% by weight or more, drying of the coating film is too fast and cracks may occur.

If the content of the remaining iso-propyl alcohol is 20% by weight or less, the concentration of the reaction solution may be increased, and gelation may be performed. At 40% by weight or more, the concentration of the reaction solution may be decreased, resulting in poor formation of methacryl oligomer. And when the content of acrylic acid is less than 0.1% by weight, the polymerization does not occur well, and may be gelated at 0.5% by weight or more.

Fourth Step

In the fourth step, a mixture of 25 to 35% by weight of the first reactant, 25 to 35% by weight of the second reactant, and 35 to 55% by weight of the third reactant is mixed with 2 to 4% by weight of distilled water and 0.1 to 0.3% by weight of oxalic acid. While stirring to 250 ~ 350RPM at room temperature while emitting a 350 ~ 450khz ultrasonic wave for 20 to 90 minutes to form a first liquid according to the following reaction formula.

If the mixing content of the first reactant is 25% by weight or less, the adhesion with the inorganic material may be lowered, and when the amount of the first reactant is more than 35% by weight, cracks may occur in the coating. In addition, when the mixing content of the second reactant is 25 wt% or less, the water resistance of the coating film may be lowered, and at 35 wt% or more, cracks may occur in the coating film. In addition, when the mixing content of the third reactant is 35% by weight or less, the coating film may become hard and cracks may be generated. When the content of the third reactant is 55% by weight or more, the coating film may be soft and durability may be reduced.

When the content of the remaining distilled water is less than 2% by weight, hydrolysis does not occur well, and more than 4% by weight may gel. And the amount of hydroxyl is less than 0.1% by weight hydrolysis reaction does not occur well, the reaction liquid may be gelated at 0.3% by weight or more.

Step 5

The fifth step is a mixture of 15 to 35% by weight of alumina-sol, 15 to 35% by weight of iso-propyl alcohol, and 35 to 55% by weight of methyl trimethoxy silane. While stirring at 250 ~ 350RPM at the same time and primary radiation of 350 ~ 450khz ultrasonic wave for 20 to 90 minutes, 3-7% by weight of the amino propyl triethoxy silane (Amino propyl triethoxy silane) to the first reaction mixture While stirring the mixture at 250 to 350 RPM at room temperature, the second liquid is spun at 350 to 450 khz for 20 to 90 minutes to form a second liquid according to the following reaction formula.

At this time, when the mixing content of the alumina-sol is 15 wt% or less, the coating film is not formed, and when the 35 wt% or more is used, cracks may occur in the coating film. In addition, when the mixed content of methyl trimethoxy silane is 35 wt% or less, no coating film is formed, and at 55 wt% or more, cracks may occur in the coating film. In addition, when the mixing content of the amino propyl triethoxy silane is 3 wt% or less, no coating film is formed, and at 7 wt% or more, cracks may occur in the coating film.

Sixth Step

In the sixth step, the ceramic coating liquid is completed by mixing 70 to 85 wt% of the first liquid and 15 to 30 wt% of the second liquid. The finished coating solution is applied to the primer layer 21 to complete the ceramic coating layer 25. That is, when the prepared first liquid and the second liquid are mixed, the hydrolyzate of the silanol group of the alumina sol oligomer of the second solution reacts with the glycidyl group of the first solution and the amino group of the second solution according to the following reaction formula. By reaction, it can have both durability and flexibility.

Hereinafter, the specific examples of the present invention will be examined to determine the effectiveness of the coating solution.

<Sample Production>

First, a mixture of 500 g of 3-methacryloxy propyl methyl dimethoxy silane, 445 g of iso-propyl alcohol, 50 g of distilled water, and 5 g of hydrochloric acid was stirred at 300 RPM at room temperature, and at the same time, 400khz ultrasonic wave was radiated for 30 minutes to form a first reactant. The mixture of 400 g of vinyl triethoxy silane and 550 g of iso-propyl alcohol, 45 g of distilled water, and 5 g of hydrochloric acid was stirred at 300 RPM at room temperature, and 400 secz ultrasonic wave was emitted for 30 minutes to form a second reactant.

Then, a mixture of 350 g glycidyl methacrylate and 350 g methyl methacrylate was mixed with 297 g of iso-propyl alcohol and 3 g of acrylic acid at 300 RPM at room temperature, and simultaneously radiated 400khz ultrasonic wave for 60 minutes to form a third reactant. 300 g of the first reactant, 300 g of the second reactant, and 468 g of the third reactant were mixed with 30 g of distilled water and 2 g of oxalic acid at room temperature at 300 RPM.

Subsequently, a mixture of 250 g of iso-propyl alcohol and 450 g of methyl trimethoxy silane was stirred at 300 RPM at room temperature and 400 kgz ultrasonic wave was first radiated for 30 minutes, and the first reaction was performed. 50 g of amino propyl triethoxy silane was added to the mixture, followed by stirring the mixture at 300 RPM at room temperature, while simultaneously radiating 400khz ultrasonic waves for 30 minutes to form a second liquid.

<Coating solution production>

Example 1 Example 2 Example 3 Example 4 Example 5 First liquid weight 100 100 100 100 100 Second liquid weight 20 25 30 35 40 Weight ratio 100: 20 100: 25 100: 30 100: 35 100: 40

<Experiment Result>

Test Items unit Result Test Methods Example 1 Example 2 Example 3 Example 3 Example 4 Water resistance 72 hours clear Korean Housing Corporation Specification: 2009 One One One One One Alkali resistance 72 hours clear Korean Housing Corporation Specification: 2009 One One One One One Wear resistance
(CS-17 1000 g) mg 40 ASTM D 4060: 1 45 45 40 52 53 Adhesion N 1.61 Korean Housing Corporation Specification: 2009 1.6 1.6 1.61 1.6 1.58 Coating state clear Korean Housing Corporation Specification: 2009 One One One One One Wash resistance time More than 2000 KS M 5000: 3000 One One One One One Pencil hardness 3H KS M ISO 15184: 2002 2H 3H 3H 3H 3H Acid resistance (3% hydrochloric acid) 72 hours clear KS M ISO 2812-1 2007 One One One One One Salt Spray Test 72 hours clear KS D 9502: 2007 One One One One One Housework time h 4 KS M 6030: 6004 One One One One One Polished (60) 90 KS M ISO 2813: 2007 One One One One One Pollution resistance Oily magic clear KS M 3332: 2009 One One One One One Test result 1: very good 3: moderate 5: very bad

It is apparent to those skilled in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

7, 8: sidewalk block 11: sidewalk
15: notice board 21: primer layer
25: ceramic coating layer 35: notification layer
41: adhesive
S10: Plate Preparation
S20: top coating step
S30: lower coating step
S40: block completion step

Claims (5)

In the manufacturing method of the information display sidewalk block:
A plate preparation step of preparing a sidewalk board composed of any one of stone, concrete, and resin, and a notice board composed of a transparent resin material through which light is transmitted;
An upper coating step of forming a primer layer on an upper surface of the notice board and forming a ceramic coating layer on the primer layer;
A lower coating step of modifying a roughness on a bottom surface of the notice board and forming a notice layer by printing information on the modified surface; And
And a block completion step of completing the sidewalk block by adhering the top surface of the sidewalk board and the bottom surface of the notice board with an adhesive. 2. The method of claim 1,
The ceramic coating layer,
First step of forming a first reactant according to reaction conditions by mixing iso-propyl alcohol, distilled water, and hydrochloric acid with 3-methacryloxy propyl methyl diethoxy silane ;
A second step of forming a second reactant according to reaction conditions by mixing iso-propyl alcohol, distilled water, and hydrochloric acid with vinyltriethoxy silane;
A third step of forming a third reactant according to reaction conditions by mixing iso-propyl alcohol and acrylic acid to glycidyl methacrylate and methyl methacrylate;
A fourth step of mixing the first reactant, the second reactant, and the third reactant to form a first liquid according to reaction conditions by mixing distilled water and hydroxyl acid;
Iso-propyl alcohol, methyl trimethoxy silane and amino propyl triethoxy silane are mixed with alumina-sol to form a second liquid according to the reaction conditions. The fifth step; And
And a sixth step of applying a ceramic coating liquid comprising mixing 70 wt% to 85 wt% of the first liquid and 15 wt% to 30 wt% of the second liquid. The method of claim 2,
The reaction condition is a method of manufacturing an information display sidewalk block, characterized in that for stirring 20 ~ 90 minutes 350 ~ 450khz ultrasonic wave at the same time while stirring the mixture at room temperature 250 ~ 350RPM. The method of claim 2,
In the fifth step, a mixture of iso-propyl alcohol and methyl trimethoxy silane premixed with alumina-sol is first reacted according to reaction conditions, and then amino propyl triethoxy silane is added to the first reacted mixture. Method for producing an information display sidewalk block, characterized in that the secondary reaction according to the reaction conditions. Information display sidewalk block manufactured by the method according to claim 1.