KR20130011390A - Manufacturing method of triple coating polymer concrete boundary stone and the triple coating polymer concrete boundary stone - Google Patents

Abstract

PURPOSE: A method for manufacturing triple-coated polymer boundary stone is provided to prevent contamination of the boundary stone by formation of a coated layer and to ensure visibility at night. CONSTITUTION: A method for manufacturing triple-coated polymer boundary stone comprises: a step of applying a release agent(20) on a mold(10); a step of applying a first gel-coat resin on the inside of the release agent and performing primary thermal treatment to form a coated layer(30); a step of adhering pattern(40) on the inside of the coated layer; a step of painting second gel coat resin on the pattern; a step of drying the resin at room temperature for 8-13 minutes and forming a pattern layer(50); a step of removing the pattern and performing secondary thermal treatment; a step of applying third gel coat resin on the inside of the pattern layer and coated layer and performing tertiary thermal treatment to form a base layer(60); and a step of filling the inside of the base layer with a mixture resin containing polyester resin and performing quaternary thermal treatment to form a filling layer(70).

Description

Manufacturing method of triple coating polymer concrete boundary stone and the triple coating polymer concrete boundary stone

The present invention relates to a method of manufacturing a triple-coated polymer concrete boundary stone and a triple-coated polymer concrete boundary stone, more specifically, it is possible to ensure visibility even in the dark night, and because of the contamination is not well due to the coating can be used for a long time without separate cleaning The present invention relates to a method for producing triple coated polymeric concrete boundary stones and to triple coated polymeric concrete boundary stones.

In general, the boundary stone used for roads, bicycle roads, sidewalks, and the like has been used as a concrete boundary stone that mixes cement, sand, gravel, and water in a ratio, and pours the mixture into the boundary stone frame to cure.

However, this concrete boundary stone is aging phenomenon in the process of repeated absorption and evaporation of water due to inundation during the rainy season, the hardness is reduced, so that even a slight impact is easily broken or cracked. In particular, when the outside temperature falls below 0 ° C., such as winter, there is a problem that the water freezes before the evaporation due to the moisture contained in the concrete and freezes as the volume expands.

Accordingly, there are many cases in which the road boundary stone is replaced, and as a result, the pedestrian's walking is impaired, the traffic jam is caused, and the cost of the replacement work is enormous.

Accordingly, in Patent Document 10-0233991, a coating composition is overlaid on the outer surface of a boundary stone formed of a concrete composition to improve durability and waterproof against external conditions such as external impact and moisture penetration, and as the water absorption rate becomes lower, A road boundary stone has been provided so as to be able to prevent the abovementioned problems.

However, the above-mentioned road boundary stones have different appearance due to the coating composition, and their physical properties are not greatly improved. The coating composition is composed of granite stone cement and cement pigment. To use granite stone stone, The environmental pollution became serious due to the environmental destruction and discharge of noise, dust, and waste generated in the processing process, and the cost was generally higher than that of the cement concrete borders.

In Korean Patent Laid-Open No. 2002-0072684, cement, fine aggregate, coarse aggregate and water are mixed to prepare, cure and dry cement concrete in a conventional manner, and then directly cast a polymer concrete composition on cement concrete to be bonded by adhesiveness of a polymer binder. There has been provided a dual structure boundary stone.

The double structured boundary stone is excellent in watertightness and durability, but since cement concrete and polymer concrete are composed of different components, the adhesion between cement concrete and polymer concrete is degraded and separated easily due to external environmental factors. Replacement work was needed.

In addition, in order to make it easier for pedestrians and drivers to recognize the presence of boundary stones and road direction indications at night, coatings with luminous material added to one side of the boundary stone or grooves are formed on one side of the boundary stone. In order to ensure visibility of drivers and pedestrians by embedding the luminous material in the car, the light of the vehicle headlight is reflected by the luminous material.

However, such a conventional method may achieve a desired purpose by rapidly deteriorating the performance of the luminous material or peeling of the luminous material from the boundary stone surface due to external environmental factors such as exposure or contamination of the luminous material part over time. There was a problem of disappearing. And in order to prevent the degradation of the light reflection function due to the pollution of the luminous material has to be cleaned periodically, there was a problem that management is not easy.

Korean Patent Registration No. 10-0233991 1999.09.15 Korean Laid-Open Patent No. 2002-0072684 2002.09.18.

The present invention is to solve the above problems,

It is beautiful in appearance, water-tight and durable, so it can be used for a long time, and it is not contaminated, so it is not necessary to clean, and the method of manufacturing triple-coated polymer concrete boundary stone can be maintained for a long time. to provide.

Another object of the present invention is to reduce the manufacturing cost while reducing the weight of the boundary stone.

The present invention to achieve the above object,

Applying a release agent into the mold;

Applying a first gel coat resin to the inner surface of the applied release agent and performing a first heat treatment to form a coating layer;

Attaching a pattern engraved on the inner surface of the coating layer;

Coating a second gel coat resin on the substrate and drying the film for 8 to 13 minutes at room temperature to form a patterned layer;

Removing the bone and subjecting it to a second heat treatment;

Applying a third gel coat resin to the inner surface of the pattern layer and the coating layer, and performing a third heat treatment to form a base layer;

Filling a mixed resin including a polyester resin on an inner surface of the base layer and performing a fourth heat treatment to form a filling layer;

It provides a method for producing a triple-coated polymer concrete boundary stone comprising the step of demolding the molded body formed with the filling layer from the mold, and cooling.

In addition, the mixed resin is characterized in that 180 to 220 parts by weight of stone powder of 6 to 10 mesh, 90 to 110 parts by weight of fine powder of 190 to 210 mesh, and 1 to 3 parts by weight of hardener based on 100 parts by weight of polyester resin. .

In addition, the step of forming the filling layer, after filling a portion of the mixed resin on the inner surface of the base layer, and filling the waste material including waste urethane rubber or waste plastic, and filling the empty space in the mold with the mixed resin 4th It is characterized in that the heat treatment.

In the boundary stone,

A filling layer forming the shape of the boundary stone and reinforcing strength; A base layer formed on an outer surface of the filling layer and representing a background color of a boundary stone; A pattern layer in which a pattern or a guide line is expressed on an outer surface of the base layer; It provides a triple-coated polymer concrete boundary stone, characterized in that it comprises a coating layer for preventing the contamination and protection of the pattern layer and the base layer.

In addition, the outer periphery of the filling layer is made of a mixed resin containing a polyester resin, the inside is characterized in that made of waste material containing waste urethane rubber or waste plastic.

As described above, the boundary stone manufactured by the method of manufacturing the triple-coated polymer concrete boundary stone according to the present invention is not easily polluted due to the formation of a coating layer, thereby reducing cleaning work, preventing discoloration, and preventing ultraviolet rays due to UV blocking agents. Because it is strong, it prevents performance degradation such as light emission or light reflection of the pattern layer, and it is possible to secure visibility even in the dark.The marble texture by the base layer is beautiful in appearance, and the strength is reinforced by the use of appropriate fine powder and stone powder. It has a long lasting effect.

In addition, when the filling layer is formed, the weight is reduced as part of the mixed resin is filled with the waste material, so that handling is easy during operation, and the waste material is used, thereby reducing the resource saving and manufacturing cost.

1 is a partial cutaway perspective view showing a method of manufacturing a triple-coated polymer concrete boundary stone according to an embodiment of the present invention.
Figure 2 is a perspective view showing a triple coated polymer concrete boundary stone prepared by the manufacturing method of Figure 1;
3 is a sectional view of Fig. 2;
Figure 4 is a cross-sectional view showing a triple-coated polymer concrete boundary stone prepared by the triple-coated polymer concrete boundary stone manufacturing method according to another embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited to the embodiments shown in the drawings.

1 is a partial cutaway perspective view showing a method of manufacturing a triple-coated polymer concrete boundary stone according to the present invention, Figure 2 is a perspective view showing a triple-coated polymer concrete boundary stone manufactured by the manufacturing method of Figure 1, Figure 3 is a cross-sectional view of FIG. to be.

As shown in the present invention, first, the step of applying the release agent 20 in the mold 10 having a predetermined shape.

This is applied in order to easily demold the molded body 1 from the mold 1 after formation of the molded body 1, and the coating layer 20 made of the first gel coat resin can be easily separated from the mold 10. Conventional release agents can be used. Such a releasing agent may be applied to the inner surface of the mold to be uniformly applied, and then wiped out to be flat, and wax type may be more preferably used.

Next, the first gel coat resin is applied to the inner surface of the applied release agent 20, and the first heat treatment is performed to form the coating layer 30.

In this case, the coating layer 30 is a layer for preventing contamination of the boundary stone and protecting the boundary stone from various external environmental elements. The coating layer 30 is formed by the first gel coat resin is uniformly applied in the mold 10 to which the release agent 20 is applied and then cured through heat treatment, wherein the first gel coat resin is unsaturated polyester, acrylate And one or two or more thermosetting resins, curing agents, and UV blocking agents selected from urethane type resins, and may be applied through a spray gun or the like.

Here, the UV blocking agent is to prevent the coloring of the boundary stone due to the ultraviolet rays or the luminous effect of the light-emitting pigment or the like, and a conventional sunscreen such as benzotriazole may be preferably used.

In addition, the curing agent is used as a conventional reaction initiator for curing the thermosetting resin, it is preferable to use a standard curing type, typical examples of methyl ethyl ketone prooxide (methylethylketoneproxide) and dimethylaminoethyl-substituted phenols Can be used.

It is preferable that such a hardening | curing agent contains 1-2 weight% with respect to 100 weight% of thermosetting resins. If the hardener is included in less than 1% by weight, it is difficult to achieve rapid curing, and when included in excess of 2% by weight, the curing rate may be excessively fast and cracking may occur.

In addition, the first gel coat resin may further include a curing accelerator to promote the curing rate. As such a curing accelerator, cobalt octanate (CoOc) may be used.

After applying the first gel coat resin made of the above components to the inner surface of the release agent 20 applied to the mold 10, in performing the first heat treatment, the first heat treatment is 20 ~ at a temperature of 48 ~ 53 ℃ It may be performed for 30 minutes. Such temperature and time are the optimal conditions for the first gelcoat resin to have a UV blocking ability, durability, etc. of the first gelcoat resin and to be cured quickly. In addition, it is preferable that the first gel coat resin uses a transparent color since the base layer 60 or the pattern layer 50 can be more clearly expressed.

At this time, the thickness of the coating layer 30 is preferably formed to 0.3 ~ 0.5mm.

If the thickness is thinner than 0.3mm, the coating layer 30 is too thin, so that the coating layer 30 can be easily peeled off due to external impact or friction, and when the thickness is thicker than 0.5mm, the decorative effect of the pattern layer 50 is further reduced. Visibility may be lowered by blocking the luminous effect through light reflection.

The next step is to attach the pattern 40 is engraved on the inner surface of the coating layer 30.

Here, the bone 40 is a plate 43 engraved with a pattern 41, a guide line, or the like to be formed on the surface of the boundary stone, the material may be paper or tape.

Next, the second gel coat resin is coated on the bone 40 and dried at room temperature for 8 to 13 minutes to form a pattern layer 50.

That is, the second gel coat resin is applied to the inner surface of the coating layer 30 through the pattern portion of the bone 40 to form a pattern layer 50, the second gel coat resin is unsaturated polyester, acrylate and urethane One or two or more thermosetting resins, hardeners, gold foils or silver foils, selected from types of resins, and one or two or more additives selected from luminescent paints, photoluminescent paints, reflective paints, or fluorescent paints. In addition, the second gel coat resin may be applied through a brush coating to be coated only on the pattern portion, but is not limited thereto.

At this time, the curing agent is used as a conventional reaction initiator for curing the thermosetting resin, it is preferable to use a standard curing type, representative examples of methyl ethyl ketone prooxide (methylethylketoneproxide) and dimethylaminoethyl-substituted phenols Mixed liquids and the like can be used.

It is preferable that such a hardening | curing agent contains 1-2 weight% with respect to 100 weight% of thermosetting resins. If the hardener is included in less than 1% by weight, it is difficult to achieve rapid curing, and when included in excess of 2% by weight, the curing rate may be excessively fast and cracking may occur.

In addition, additives such as gold foil, silver foil, luminescent paint, photoluminescent paint, reflective paint, or fluorescent paint are used to improve visibility of the indicators indicated by patterns at night or daytime, and the visibility of the second gel coat resin is not impaired. An amount of such a degree that can be sufficiently secured can be appropriately mixed and used.

And the thickness of the pattern layer 50 is preferably formed in about 0.3 ~ 0.5mm, if the thickness is thinner than the above range, the adhesiveness is low, the pattern layer 50 is easily separated together when removing the bone 40, the If the thickness is greater than the range, as the thickness difference between the pattern layer 50 and the coating layer 30 increases, the thickness difference for each position of the base layer 60 to be formed later increases, and thus the adhesiveness may be lowered.

In addition, after coating the second gel coat resin as described above, and dried at room temperature for 8 to 13 minutes to semi-dry, after which the bone (40) is removed, secondary to 10 to 20 minutes at a temperature of 48 ~ 53 ℃ A heat treatment step is performed.

At this time, removing the bone 40 after half-drying the pattern layer 50, if the bone 40 is removed while the second gel coat resin is not partially cured, the second gel coat resin is added to the bone 40 This is because the shape of the pattern layer 50 to be formed may be deformed as it flows out of the shape of the glue or the pattern.

After the second heat treatment is completed as described above, the third gel coat resin is applied to the inner surface of the pattern layer 50 and the coating layer 30, and a third heat treatment is performed to form the base layer 60.

The base layer 60 is used to form the base color of the boundary stone, and may have an effect of natural stone such as granite depending on additives such as pigments mixed in the third gel coat resin.

More specifically, the third gelcoat resin includes one or two or more thermosetting resins, curing agents, and pigments selected from unsaturated polyester, acrylate and urethane type resins, and may be applied through a spray gun or the like.

Pigments are iron oxide red, iron oxide yellow, chromium oxide green, TiO ₂ -R, Alsol Red, Lake Red, Hosta Perm Red, Raven series ( Inorganic pigments or organic pigments such as Raven series, carbon black, sulfur black, chrome yellow, panax blue, and the like, and silica sand, calcium carbonate, magnesium silicate, ceramic Extender pigments of inorganic substances such as powders may be used.

The mixing amount of the pigment may be appropriately mixed with an amount capable of producing a vivid color without lowering the workability of the third gel coat resin.

The curing agent is used as a conventional reaction initiator for curing the thermosetting resin, it is preferable to use a standard curing type, a typical example is a mixture of methyl ethyl ketone proxide and dimethylaminoethyl-substituted phenols Etc. can be used.

It is preferable that such a hardening | curing agent contains 1-2 weight% with respect to 100 weight% of thermosetting resins. If the hardener is included in less than 1% by weight, it is difficult to achieve rapid curing, and when included in excess of 2% by weight, the curing rate may be excessively fast and cracking may occur.

It is preferable that the coating thickness of the third gel coat resin is 0.3 to 0.5 mm. If the thickness is thinner than this, the height difference between the pattern layer 50 and the coating layer 30 is large, and thus the adhesion between the layers may be reduced. If it is thicker than mm, the amount of the third gel coat resin is increased, but there is no effect of improving it, which is uneconomical.

The third gel coat resin may be completely cured by heat treatment at a temperature of about 40 degrees for 30 minutes, through which the base layer 60 is formed.

Next, filling the mixed resin containing a polyester resin on the inner surface of the base layer 60 and performing a fourth heat treatment to form a filling layer 70.

Here, the mixed resin constituting the filling layer 70 may be used by mixing a polyester resin, stone powder, fine powder, and a curing agent in a predetermined ratio in order to maximize adhesiveness with the base layer.

Specifically, the mixed resin may be a mixture of 180 to 220 parts by weight of stone powder of 6 to 10 meshes, 90 to 110 parts by weight of fine powder of 190 to 210 meshes, and 1 to 3 parts by weight of a curing agent based on 100 parts by weight of polyester resin.

Here, the polyester resin is not only inexpensive but also exhibits excellent properties in terms of physical and chemical properties. In particular, an unsaturated polyester resin may be preferably used.

Stone powder and fine powder are for strength. These powders and fine powders may reduce the strength characteristics when used in less than the above-described weight range, respectively, and the workability of the mixed resin may be lowered if the above-mentioned weight range is exceeded.

The curing agent is used as a conventional reaction initiator for curing the polyester resin, it is preferable to use a standard curing type, representative examples of methyl ethyl ketone proxide and dimethylaminoethyl-substituted phenols Mixed liquids and the like can be used.

In this case, the curing reaction may be sufficiently progressed by adding more than 1 part by weight based on 100 parts by weight of the polyester resin, and it is not necessary to add more than 3 parts by weight.

In this way, when the mixed resin is filled, the fourth heat treatment is performed to form the filling layer 70. The fourth heat treatment causes vibration for about 5 minutes in the vibrator to allow the mixed resin to be evenly distributed and maximize the adhesiveness. Curing by heat treatment 55 ~ 65 minutes at a temperature of ~ 53 ℃.

Finally, the molded body 1 having the filling layer formed in the same manner as described above is demolded from the mold 10, and cooled at room temperature for about 24 hours, thereby performing triple according to the present invention as shown in FIGS. 2 and 3. Preparation of the coated polymer concrete boundary stone can be completed.

That is, the triple-coated polymer concrete boundary stone manufactured by the above method forms a shape of boundary stone and reinforces strength; A base layer 60 formed on an outer surface of the filling layer 70 and representing a base color of a boundary stone; A pattern layer 50 having a pattern or a guide line on the outer surface of the base layer; It is to include a coating layer 30 for preventing and protecting the pattern layer 50 and the base layer 60.

Such triple-coated polymer concrete boundary stone is not easy to be polluted by the formation of a coating layer, thereby reducing cleaning work, preventing discoloration, and being resistant to ultraviolet rays due to the UV blocking agent included in the coating layer, thereby emitting or reflecting light from the pattern layer. Visible performance can be secured even in the dark by preventing performance deterioration.The marble texture by the base layer makes the appearance beautiful, and the strength is reinforced by the use of appropriate fine powder and stone powder which make up the filling layer. Do. In addition, directions and landmarks are possible through patterns or guide lines formed on the pattern layer.

And this type of boundary stone is excellent in the pollution prevention effect due to the coating layer can be usefully used as a boundary stone to separate the bicycle road and sidewalks by embedding in the boundary between the bicycle road and the sidewalk.

4 is a cross-sectional view of the triple-coated polymer concrete boundary stone manufactured by the manufacturing method according to another embodiment of the present invention.

As shown in the present invention, in the above-described manufacturing method, the step of forming the filling layer 70, after filling a portion of the mixed resin on the inner surface of the base layer 60, including waste urethane rubber or waste plastic After the waste material 80 is filled, the empty space in the mold is filled with the mixed resin, and then characterized in that the fourth heat treatment.

When the filling layer 70 is filled with the mixed resin and the waste material 80 as described above, and then heat-treated to form the molded body 1, as shown in FIG. 4, the outer side of the filling layer 70 is a polyester resin. It is made of a mixed resin comprising a, the inside of the molded body (1), that is, a boundary stone made of waste material 80, including waste urethane rubber or waste plastic can be produced.

The boundary stone having such a structure reduces the overall weight of the boundary stone due to the waste material, and thus is easy to handle at work, and also has the effect of saving resources and manufacturing costs because the waste material is used.

1: molded body
10: mold 20: release agent
30: coating layer 40: pattern
41: Glyph 43: Plate
50: pattern layer 60: base layer
70: filling layer 80: waste material

Claims (5)

Applying a release agent (20) into the mold (10);
Applying a first gel coat resin to an inner surface of the applied release agent and performing a first heat treatment to form a coating layer 30;
Attaching a patterned engraved pattern 40 to an inner surface of the coating layer;
Coating a second gel coat resin on the substrate and drying the film for 8 to 13 minutes at room temperature to form a pattern layer 50;
Removing the bone 40 and subjecting it to a second heat treatment;
Applying a third gel coat resin to the pattern layer and the inner surface of the coating layer, and performing a third heat treatment to form a base layer 60;
Filling a mixed resin including a polyester resin on an inner surface of the base layer 60 and performing a fourth heat treatment to form a filling layer 70;
A method for producing a triple-coated polymer concrete boundary stone, comprising the step of demolding a molded body (1) having a filling layer formed from a mold and cooling. The method according to claim 1,
The mixed resin is a triple coating, characterized in that 180 to 220 parts by weight of stone powder of 6 to 10 meshes, 90 to 110 parts by weight of fine powder of 190 to 210 meshes, and 1 to 3 parts by weight of a curing agent based on 100 parts by weight of polyester resin. Method for producing polymer concrete boundary stone. The method according to claim 1 or 2,
In the forming of the filling layer, after filling a portion of the mixed resin on the inner surface of the base layer 60, the waste material 80 containing waste urethane rubber or waste plastic is filled, and the empty space in the mold is filled with the mixed resin. Method for producing a triple-coated polymer concrete boundary stone characterized in that the fourth heat treatment after the. In the boundary stone,
A filling layer 70 forming a boundary stone and reinforcing strength;
A base layer 60 formed on an outer surface of the filling layer 70 and representing a base color of a boundary stone;
Patterned layer 50, the pattern or guide lines are expressed on the outer surface of the base layer and
Triple-coated polymer concrete boundary stone, characterized in that it comprises a coating layer 30 for preventing and protecting the pattern layer 50 and the base layer 60.
The method of claim 4,
The outer layer of the filling layer 70 is made of a mixed resin containing a polyester resin, the inside is triple coated polymer concrete boundary stone, characterized in that consisting of waste material containing waste urethane rubber or waste plastic (80).

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