KR101019653B1 - Bambusoideae structure - Google Patents

Abstract

The present invention relates to a bamboo structure that can charge the sunlight in the daytime and brighten the light at night by combining a bamboo material and a solar panel and an LED light (light source), environmentally friendly and excellent elastic modulus, body part made of bamboo, The solar cell is exposed to any one of the body portion to easily absorb and accumulate sunlight, characterized in that a plurality of light sources formed at least one or at a predetermined interval in the body portion. In addition, the present invention is characterized in that the transparent or semi-transparent protective cover is installed on the exposure window to protect the light source, through which the light is illuminated or exposed to the outside at night, the bamboo product equipped with the solar panel of the present invention Street lamps on sidewalks or sidewalks, central dividers of roads, bollards that prevent vehicles or pedestrians from entering, parks, bicycle paths, trails, hiking trails, roadsides, rural homes, pensions, restaurants, children's care facilities, school / apartment fences, etc. It is used in at least one of the outdoor facilities including the garden lights, fences and benches, etc., and a light bulb, an LED, or a light emitting sheet is used as the light source.

Bamboo, solar cell, solar light, light source, lighting fixture, street light, electric pole, garden light, central divider, bollard, fence, bench, LED, light emitting sheet

Description

Bamboo Structures {BAMBUSOIDEAE STRUCTURE}

The present invention relates to a combination of environmentally friendly bamboo and solar panels and lighting fixtures, and more specifically, the natural texture of bamboo is expressed to the maximum and processed to prevent discoloration, deterioration and corrosion by ozone, acid rain, etc., even when exposed to the outdoors for a long time. Placing a solar cell on the top of the body portion made of bamboo, it relates to a bamboo structure that can be combined with a light source as a light source to provide a boundary, protection and lighting functions at night.

In general, bamboo (Bambusoideae) stabilizes the body's energy and clears blood, and anion is released more than twice as much as ordinary wood and absorbs electromagnetic waves, which is effective in relieving overwork and stress by promoting blood circulation and metabolism by far-infrared radiation. It is known.

These bamboos are the generic name of the monocotyledonous rice plant (rice) and the evergreen perennial plant belonging to the bamboo subfamily, which is distributed worldwide but mainly grows in the tropics, especially in Asian monsoon zones.

In addition, bamboo has excellent sound absorption and air-purifying function, and it is strong in water in terms of management, and does not rot, so its service life is longer than that of general plywood. The treatment does not cause mold, mites, etc., and generally does not exhibit static electricity, so dust does not adhere to it.

Bamboo, which has many of these advantages, also has excellent durability and modulus of elasticity, and thus has a wide variety of uses for ornamental materials such as building materials, furniture, fishing rods, plant supports and baskets.

On the other hand, looking at the conventional techniques for lighting equipment using bamboo as follows.

First of all, Korean Utility Model No. 423882 is an indirect lighting device that combines a charcoal flower stand, which is made of a bamboo or bamboo-textured synthetic resin pipe as an indirect lamp lamp shade and is equipped with a charcoal flower stand on the top or side of the lamp shade. Introducing the configuration.

In addition, Korean Utility Model Registration No. 309805 is an indoor indirect lighting device using bamboo barrels. The interior and exterior of the bamboo barrels are precisely cut to a certain thickness to form lighting lampshades, and the pedestal and connecting rods are made of bamboo. have.

However, the lighting devices introduced in these utility models are mainly intended for indoor installation and are not suitable for outdoor facilities such as street lamps or bollards installed on roadsides or sidewalks, fences installed in parks or gardens, gardens, and benches. There were many difficulties in the installation structure.

On the other hand, as an example of a typical outdoor facility, there are fences, bollards, etc., which are installed for the purpose of boundary or protection for parks, gardens, rural houses, pensions, bicycle paths, hiking trails, and the like, and a lot of things such as benches are installed for relaxation purposes.

In particular, bollards are frequently used for bicycle-only roads, sidewalks and roadways, no car entry, and no parking in front of the mall.In the conventional case, outdoor facilities such as fences, bollards, benches, street lamps, and gardens are mainly made of steel structures, aluminum, Made of materials such as stainless steel and plastic. Such materials are convenient to manufacture, but they are expensive and complicated. In addition, in the case of manufacturing a metal or plastic material such as an iron structure, the artificial image is strong and can give a hard and depressed feeling, in particular, there is a disadvantage that far from the natural beauty, eco-friendly to pursue the present invention.

In this regard, an example of a bamboo structure having a light emitting function that has been developed for outdoor installation in the related art is as follows.

Korean Patent No. 0832403 relates to a bamboo fence and a construction method, wherein the bamboo fence is a bamboo post made by processing the inside of a bamboo formed with an outer and inner nodes, a cap coupled to the top of the bamboo post, and a bamboo post It consists of a lower plate supporting the bottom, and a handrail connecting the bamboo struts, and a light emitting tape is attached to the surface of the cap to prevent accidents of pedestrians or drivers when walking or driving at night. .

However, attaching the light emitting tape to the cap coupled to the top of the bamboo support provides only a display function for night pedestrians or road riders, and does not provide the lighting function that the present invention seeks.

On the other hand, if bamboo, an eco-friendly material, is used for outdoor facilities such as bollards, garden lamps, fences, road dividers, rose arches, pagora, benches, etc., it is easy to crack during drying process. The coating film or paint coating film is likely to be peeled off, deteriorated, and corroded, and mold is easily generated, resulting in a very short service life.

In order to solve these problems, various methods of processing bamboo have been developed. For example, Korean Patent Laid-Open Publication No. 2001-0003727 relates to a method for processing antibacterial bamboo, wherein bamboo is made of 1.5% of 10% hydrogen peroxide solution and 1% NaOH solution. It is disclosed in the bamboo processing method comprising the step of bleaching boiled for 20 to 60 minutes in a mixed bleach solution of 1-2: 1 and neutralizing the washed bleached bamboo with 1% HCl solution.

However, the Patent Publication No. 2001-0003727 has a problem in that it is not environmentally friendly by using a large amount of environmentally harmful substances during bamboo processing by a process of neutralizing with hydrochloric acid.

In addition, Korean Laid-Open Patent No. 1999-0075975 is a manufacturing method of a panel for interior and exterior materials (PANNEL) using bamboo, and puts a bark material and auxiliary bark in water containing an overbleaching agent and a dye, and a temperature of 100 ° C. or more. It includes sterilizing, bleaching and dyeing the processed bamboo materials by boiling for about 20 to 40 minutes at the same time. Also, in Korean Patent No. 0553523, the method of coloring bamboo by heat treatment and the bamboo produced by the method It provides a product, characterized in that it comprises the step of heat-treating bamboo for 1 hour to 2 hours at a temperature of 175 ~ 240 ℃ in a vacuum furnace.

However, when the heat treatment, such as heating may be discolored bamboo dark brown, brown, etc., there is a problem that the natural texture of the bamboo is degraded, the cost is increased due to the long time heat treatment using the heat treatment means.

In addition, if the sap is not completely removed from the skin of the bamboo, the adhesion of the coating agent is poor, thereby causing the coating to be easily peeled off, and the sap forms pores due to temperature change, and thus it is easy to form, corrode and age due to rainwater and moisture. There is a problem that the life is shortened.

Therefore, the conventional bamboo products can be used for indoor, craft, and furniture are very limited in use, but also have strong durability and long-term preservation against deterioration, corrosion, and decay even when exposed to moisture, air exposure, rainwater, etc. It was not available for outdoor facilities.

In order to solve this problem, the surface of the bamboo is sometimes used by painting with paint, but also it is not properly utilized for outdoor facilities due to peeling, aging, and corrosion in a short time.

The present invention was invented to solve the above-mentioned problems, by charging the electricity in the daytime from the configuration of the solar cell and lighting equipment combined with bamboo, which is an environmentally-friendly material, and provide both the boundary, protection and lighting at night to produce a nice night view In addition, its purpose is to provide bamboo structures with natural beauty and eco-friendliness.

In addition, an object of the present invention is to provide an improved bamboo structure to express the natural texture of the bamboo to the maximum, and to be durable and long-term storage is not deteriorated and corroded by ozone, acid rain and the like.

An object of the present invention as described above, the body portion made of bamboo, including a solar cell is installed on top of the body portion, a circuit portion through which electricity generated or charged by the solar cell flows, and a light source connected to the circuit portion, The bamboo, the step of applying a sodium hypochlorite solution on the surface for 1-3 minutes at room temperature; Washing the bamboo to which the sodium hypochlorite solution is applied; Heating and drying the washed bamboo at a temperature of 60 to 150 ° C. for 10-30 minutes in a 915 MHz microwave, a 2.45 GHz microwave or a combination of the two microwaves; And based on 100 parts by weight of isobutyl trimethoxysilane on the surface of the dried bamboo, 5 to 15 parts by weight of 2-ethoxyethanol, 1 to 10 parts by weight of n-butanol, 1 to 10 parts by weight of colloidal silica, Solbi It can be achieved by processing by a method comprising the step of applying a silicone emulsion coating agent consisting of 10 to 30 parts by weight of tanmonolate and 300 to 350 parts by weight of distilled water.

According to the present invention, the cap member is formed with an opening on the upper surface, the solar cell is in direct contact with sunlight through the opening, or in contact with the sunlight through a predetermined transparent plate installed to shield the opening. .

In addition, the cap member has a through hole that can be exposed to the outside of the light source, a plurality of the through hole is formed along the circumferential surface of the cap member at regular intervals.

In addition, the cap member is provided with a plurality of exposure windows at regular intervals along the circumferential surface of the cap member so that the light of the light source is illuminated or exposed to the outside, the light source is directly exposed to the outside through the exposure window, or the light source Light is illuminated or exposed to the outside through a transparent or translucent protective cover installed on the exposure window to protect the light.

In addition, the cap member is configured to have a predetermined depth in the inward direction in order to minimize the dispersion of light from the light source and increase the amount of light emitted to the outside, the depth direction is formed to have a trapezoidal or fan-shaped structure.

In addition, an object of the present invention is a body portion made of bamboo which is established at a certain distance from each other, a connection portion made of bamboo connecting between the body portion, a solar cell installed to be exposed to the outside of the body portion or the connecting portion, the solar cell And a circuit unit through which electricity generated or charged is flowed, and a light source connected to the circuit unit, wherein the bamboo includes: applying sodium hypochlorite solution on the surface for 1 to 3 minutes at room temperature; Washing the bamboo to which the sodium hypochlorite solution is applied; Heating and drying the washed bamboo at a temperature of 60 to 150 ° C. for 10-30 minutes in a 915 MHz microwave, a 2.45 GHz microwave or a combination of the two microwaves; And based on 100 parts by weight of isobutyl trimethoxysilane on the surface of the dried bamboo, 5 to 15 parts by weight of 2-ethoxyethanol, 1 to 10 parts by weight of n-butanol, 1 to 10 parts by weight of colloidal silica, Solbi It can be achieved by processing by a method comprising the step of applying a silicone emulsion coating agent consisting of 10 to 30 parts by weight of tanmonolate and 300 to 350 parts by weight of distilled water.

According to the present invention, it is preferable that the connection part has a through hole that can be exposed to the outside of the light source, and a plurality of the through holes are formed at regular intervals along the length end of the connection part.

Bamboo structure of the present invention, to prevent the entry of vehicles or pedestrians, such as street lights or poles on the side of the road or sidewalk, the central divider of the road, public offices or bicycle paths, school fences, apartment complexes, park green space, children, etc. It can be used for outdoor facilities including bollards, firewalls and fences, benches such as parks, country houses, pensions, gardens, bicycle paths, hiking trails, rose arches, interior columns, towers and gardens, and pagolas. Light bulbs, light emitting sheets or LEDs may be provided.

The present invention is a natural material and excellent durability and elasticity in the configuration of installing a cap member with a built-in solar cell and a lighting device connected to the upper end of the body portion made of bamboo, connecting a plurality of body parts and these body parts set at a certain distance At the daytime, the solar cell generates electricity from the sun and charges the light at night by arranging the connection parts of the bamboo material and the solar cells and a plurality of lighting fixtures connected thereto at regular intervals so as to be exposed to the outside. The lighting of the instrument can be illuminated, so it can be applied to street lights, pole lights, garden lights, fences, bollards, benches, etc. to create a beautiful night view by lighting as well as boundary and protection functions at night.

In addition, according to the present invention, the bamboo not only cleans and sterilizes foreign substances, epidermal sap, mold, etc. on the surface, but also has excellent durability and elasticity, and does not deteriorate, corrode, and rot due to ozone, acid rain, etc. Scratches or cracks are prevented, and the natural texture of the bamboo can be expressed to the maximum, and when applied to the bamboo structure of the present invention, more natural aesthetics can be realized.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the bamboo structure of the present invention.

Figure 1 shows an embodiment of the bamboo structure of the present invention, Figure 1a is an external perspective view of the bamboo structure, Figure 1b is a partially enlarged cross-sectional view of Figure 1a.

Bamboo structure according to the present invention is the body portion 1 made of bamboo, the cap member 2 coupled to the upper end of the body portion, the plate-shaped solar cell embedded in the state exposed to the surface of the cap member (2) 3, hereinafter referred to as a 'solar panel', a circuit portion 4 through which electricity generated from the solar panel 3 flows, and a light source connected to the circuit portion 4, that is, a lighting device 5.

As is well known, solar cells convert energy from sunlight into electrical energy, and a silicon semiconductor is generally used as a material, and two types of semiconductors, commonly referred to as P-type semiconductors and N-type semiconductors, are used for electricity. It is configured to cause.

The solar panel 3 of the present invention receives electricity during the day to generate electricity, and the generated electricity is stored in the charging unit (not shown) and then supplied to the lighting device 5 at night to illuminate the light. To this end, the present invention may employ a light sensor (sensing light sensor) for detecting the ambient brightness, the circuit unit 4 is configured to control the on and off of the luminaire 5 according to the signal transmitted from the light sensing sensor. Can be.

In the present invention, the cap member 2 is provided in a form in which the upper part is open or transparent to allow the solar panel 3 to receive sunlight well. As an example of such a configuration, the present invention forms an open hole (2a) on the upper surface of the cap member 2 to enable the solar panel 3 to be in direct contact with the sunlight, or also not shown, the cap member The upper opening 2a of (2) can be closed by transparent glass, an acryl plate, etc., and can be comprised so that it may contact with sunlight from the inside.

In addition, the cap member 2 may have a predetermined through hole 2b through which a part of the luminaire 5 is exposed to the outside so that the light generated by the luminaire 5, which is a light source, is exposed to the outside. . In this case, a plurality of through holes 2b may be formed at regular intervals along the circumferential surface of the cap member 2.

Bamboo structure of the present invention having the above-described configuration is a public office, bicycle path, school fence, apartment complex, park green space, protection facilities such as children, fences for the purpose of protection, landscaping and landscaping, garden for garden, etc. It can be applied to various outdoor facilities such as electric poles on roadsides and streetlights on sidewalks. The present invention may use a light bulb such as a conventional light bulb for this purpose, but may preferably adopt a light source such as an LED or a light emitting sheet having a much higher illuminance than a general light bulb.

2 illustrates various applications of the bamboo structure having the basic configuration of FIG. 1. First, in the case of Figure 2a, showing an example of the fence using the bamboo structure of the present invention, connecting the upper and lower portions, respectively, with bamboo 6 (connection portion) between the body portion 1 at a certain distance, By connecting the upper and lower bamboos 6 in a checkered form using pieces of bamboo or thin bamboo, the unit structure of the fence was formed.

Figure 2b is an example of a grass protection fence using a bamboo structure of the present invention, between the upper and lower bamboo (6; connecting portion) between a plurality of body parts 1 at a certain distance, respectively, the grass The unit structure of the protective fence was formed. In addition, Figure 2c shows another example of the grass protection fence using the bamboo structure of Figure 1, a plurality of rather short bamboo between the body portion 1 at a certain distance in parallel with the body portion 1 By arranging and combining the unit structure of the grass fence fence.

On the other hand, in the installation of the actual fence can be installed in the form of a plurality of unit structures as shown in Figs. 2a to 2c, the fences installed in this way, the light of the respective lighting fixtures 5 coming through the cap member (2) at night Not only can it produce a very beautiful night view, but it can also clearly recognize the boundary that prevents entry even in dark nights, so that the boundary and protection objectives can be accurately performed.

2d to 2e show an example of a bench using the bamboo structure of Figure 1, Figure 2d is a front view of the bench, 2e is a side view of the bench.

According to Figs. 2d to 2e, the bench arranges the body portions 1 which are vertically supported at four corner portions at a certain distance from each other, and a plurality of bamboos 6 in the longitudinal direction between these body portions 1. ) Was arranged in order to form a structure that people can sit.

The bench installed in this way can not only produce a very beautiful night view from the lights of the respective lighting fixtures 5 coming out through the cap member 2 at night, and can accurately grasp the position of the bench from a distance.

The present invention by installing the fence, the grass protection fence, and the bench of the above-described Figures 2a to 2e, public offices, bicycle paths, school fences, apartment complexes, park green spaces, children's protection facilities, roadsides and power houses, during the day Using electricity charged through solar panels, it can provide borders, protection, and relaxation at night, as well as beautiful landscape effects and accurate positioning.

On the other hand, in Figures 2a to 2e above, the fence for fences, fences for grass protection, and an example of applying the present invention to the park bench, but in addition to the rose arch or interior pillars, soot, road median, It can be configured by applying to bollards, etc. to prevent the entry of vehicles and pedestrians.

Figure 3 shows a modification of the bamboo structure shown in Figures 2a, 2b and 2d, according to the present modification is an embodiment of the bamboo 6 (connecting portion) connecting between the body portion 1 The photovoltaic panel 3 can be provided.

In this case, the solar panel 3 is preferably installed so as to be exposed to the upper surface of the bamboo (6), perforated through holes (not shown) at a predetermined interval on the side of the bamboo (6) and the lighting fixture (inside) 5) can be installed so that the light can shine to the outside.

Figure 4 shows another embodiment of the bamboo structure of the present invention, Figure 4a is an external perspective view of the bamboo structure, Figure 4b is a partially enlarged cross-sectional view of Figure 4a.

As shown in FIG. 4, an example in which the present invention is applied to outdoor facilities such as street lamps, garden lamps, and electric pole lamps installed on roadsides or sidewalks can be seen.

As shown, the cap member 2 'has an exposure window 2c of a predetermined size so that the light generated from the light source 5 therein can be reflected to the outside, and this exposure window 2c has a cap member 2 A plurality of are formed spaced apart along a circumferential surface of '). In the present invention, the exposure window (2c) is preferably to have a suitable size so that the light of the roughening mechanism as a light source can be spread as wide as possible, more preferably to protect the luminaire therein each exposed window (2c) Transparent or translucent protective cover for 2d can be installed.

In addition, in the case of the cap member 2 ', the exposure window 2c is configured to have a predetermined depth in the inward direction to minimize the dispersion of the light emitted therein and to increase the amount of light emitted to the outside. Preferably, in this case, the depth direction may be formed to have a trapezoidal or scalloped structure.

Next, the processing method of bamboo constituting the bamboo structure of the present invention described above will be described.

5 is a view schematically showing a processing method of bamboo used in the bamboo structure of the present invention, Figure 6 is a view showing the surface of the bamboo processed in accordance with the bamboo processing method of FIG.

Processing of the bamboo constituting the bamboo structure of the present invention comprises the steps of treating the surface of the bamboo with sodium hypochlorite solution for 1-3 minutes, washing the surface-treated bamboo with water, and microwave the washed bamboo Heat drying using and applying the coating on the surface of the dried bamboo.

First, the surface of bamboo is surface treated with sodium hypochlorite (NaOCl) solution for 1 to 3 minutes. Sodium hypochlorite is also called sodium hypochlorite (NaOCl), and is widely used as a bleach, oxidizing agent, disinfectant disinfectant, bleach and deodorant. When the sodium hypochlorite solution is used for the surface treatment of bamboo, it is excellent in removing the foreign substances, the sap of the epidermis and the mold on the surface of the bamboo, and at the same time, sterilizing the epidermis of the bamboo. Preferably, as the sodium hypochlorite solution, the concentration of the sodium hypochlorite solution is 12% or more and 90% (v / v) or less.

If the sodium hypochlorite solution is kept wet for 1 to 3 minutes by applying, spraying or dipping the bamboo surface with a brush, spray, the sap of the foreign matter, contaminants and epidermis on the bamboo surface and the reaction with sodium hypochlorite Dissolves and is removed cleanly. Thereafter, the bamboo surface treated with sodium hypochlorite solution is washed with water to completely remove the residue on the bamboo surface.

As described above, when the surface treatment of bamboo is performed with sodium hypochlorite solution, we remove the foreign substances, the sap of the epidermis, the mold, etc. on the surface of the bamboo with sterilization and sterilization, and apply wettability when coating the coating through bamboo drying process. It improves the wettability, improves the adhesiveness, and can increase the durability life in the outdoors, and can completely remove the remaining sap in the bamboo skin to improve the adhesion of the coating agent.

The washed bamboo is then heat dried using microwaves. Preferably, the heat drying using microwaves is carried out for 10-30 minutes at a temperature of 60 to 150 ℃. Any method of drying may be used for drying the washed bamboo, but when using a hot air balloon drying device using an electric heater, gas, oil burner, etc., since the direction of heat is applied from the surface of the bamboo, heat drying It takes a long time as less than 1-2 hours, as much as 3-4 hours, less time is consumed due to drying, there is a problem in the case of the bark and the color change occurs to reduce the value of the commodity.

Preferably, a microwave drying apparatus is used in the processing of bamboo. In the case of microwaves, it penetrates evenly and uniformly into the epidermis, mesothelial and endothelium of the bark and absorbs moisture from inside and outside directly, allowing it to be heated by heating, and the drying time is 10-30 minutes. Because it can be shortened much, the splitting or discoloration of the bark by heating does not occur.

The microwave used in the present invention is an Industrial Scientific Medical (ISM) frequency band used for industrial purposes, which is used at 915 MHz, 2.45 GHz, or a combination of the two frequencies. Although 915 MHz microwaves penetrate inside of both 2.45 GHz microwaves to increase the temperature inside, 915 MHz microwave energy is relatively weak, making it easy to penetrate to the inside, but it takes longer to heat up and 2.45 GHz microwaves to the inside compared to 915 MHz microwaves. Although the penetration rate is low, but the heating time is short, it is more preferable to use a combination of the two microwaves properly.

For reference, the way in which the microwave heats the material is that a polar dielectric such as water molecules absorbs the microwave and rotates at high speed or is heated by ionic condution. The heating rate is determined by the dielectric properties of the target material. Among the dielectric properties, the dielectric constant of the material indicates the storage capacity of electrical energy, and the loss factor (Dielctric loss factor) can convert and consume the electrical energy into thermal energy. The higher this value is, the easier it is to heat up. Microwave also has the advantage of very high energy conversion efficiency. Using this principle, the bark could be dried without cracking by sterilization and heating.

 Dielectric constant Material Dielectic constant
(2.45 GHz) Material Dielectic constant
(1.0 GHz) Hexne     1.89 Polybutene    2.8 Benzene     2.27 Polystyrene    2.3 Ethanol     25.0 Polypropylene    2.6 Water     78.54 Natural rubber    2.4

Table 1 shows the dielectric constants described in Food Science and Industry 31, No. 1 (1998), CRC Handbook. As shown in Table 1, the water has a very high dielectric constant of 78.54 at 2.45 GHz, so that it can heat both the outside and the inside of the tree at the same time, allowing the tree to dry quickly.

Therefore, the conventional drying method should be heat dried 1-2 hours, but when applying the microwave according to the present invention by heating at 60 ℃ to rise to 5 ℃ / min 10-30 minutes by heating to dry up to 150 ℃ Not only can the same effect be obtained, but also the splitting and discoloration of the bark tree can be prevented and the bactericidal effect is given. In this case, the drying time increases when the drying time is lower than 60 ℃, and the drying time is not efficient, and when the drying time is over 150 ℃, the drying time is shortened. Can happen. Therefore, it is most preferable to maintain the heating temperature of 60 to 150 degreeC.

Thereafter, a coating agent is applied to the surface of the dried bamboo. The reason for applying the coating agent is to prevent or delay prolonged aging and corrosion due to ultraviolet rays, acid rain, sunlight, moisture, and the like. Bamboo according to the present invention is not colored and discolored, the surface of the bamboo when the transparent coating is applied can express a natural texture, and may also be coated in various color to improve the aesthetics. Thus, the coating agent according to the invention is transparent or colored.

Coatings used in bamboo coatings include paints. As the coating agent or paint used in the present invention, an epoxy primer, an acrylic primer, a polyester primer, a fluororesin, a silicone, and a titanium may be used, and an acrylic urethane, lacquer, cashew, silicone-based coating agent, titanium-based coating agent, silicone Preference is given to using emulsion coatings, fluorine-based emulsion coatings, sol-gel coatings and nanocoatings. In particular, silicone emulsion coatings and fluorine-based emulsion coatings are preferable in terms of environment-friendliness, and sol-gel coatings and nano coatings are preferable in terms of durability. Here, the silicone emulsion coating agent, the sol-gel coating agent and the nanocoating agent are preferably heated and dried for 5-30 minutes at a temperature of 150-180 degrees.

As the most preferred coating agent used in the present invention, a silicone emulsion coating agent is used, and in the case of the silicone emulsion coating agent, 5 to 15 parts by weight of 2-ethoxyethanol based on 100 parts by weight of isobutyltrimethoxysilane, n-butanol 1 It is preferable that it consists of -10 weight part, colloidal silica 1-10 weight part, 10-30 weight part of sorbitan monoolate, and 300-350 weight part of distilled water.

In the case of paint, it is also possible to dry naturally after application. Dry completely and leave to dry for 30 minutes to 24 hours.

Hereinafter, the present invention will be described in more detail with reference to Examples. These examples are only for illustrating the present invention in more detail, it will be apparent to those of ordinary skill in the art that the scope of the present invention is not limited by these examples in accordance with the gist of the present invention. .

Experimental Example 1: Surface treatment effect of sodium hypochlorite according to the present invention

Sodium hypochlorite 12% solution (example), which is a surface treatment agent according to the present invention, and sodium hydroxide (comparative example 1), hydrogen peroxide (comparative example 2), and hydrochloric acid (comparative example 3) generally used for bamboo surface treatment The surface treatment effect of bamboo was compared. Each surface treatment agent was applied to the surface of the bamboo with a brush, and the results of comparing the surface of the bamboo over time are shown in Table 2 below.

Effect of Chemicals on Bamboo Surface Treatment Drug name 1 minute later 2 minutes later 3 minutes later Sodium Hypochlorite (Examples) Start dissolving foreign substances, contamination, epidermal sap Remove foreign substances, contamination, epidermal sap Remove foreign substances, contamination, epidermal sap NaOH (Comparative Example 1) no effect no effect no effect H ₂ O ₂ (Comparative Example 2) Decolorization reaction, Decolorization Decolorization HCl (Comparative Example 3) Discolored Discolored Discolored

According to Table 2, after about 30 seconds when the 12% solution of sodium hypochlorite (example) according to the present invention was applied to the bamboo surface, the reaction with the foreign substances, contaminants, and epidermal sap proceeded about 2 minutes. Although the substance was completely removed, the surface of bamboo was discolored or discolored in the case of hydrogen peroxide (Comparative Example 2) and hydrochloric acid (Comparative Example 3), and it was found that sodium hydroxide (Comparative Example 1) had no effect on the surface treatment. Could.

Experimental Example 2: Adhesiveness at Surface Treatment with Sodium Hypochlorite Solution

When the bamboo is coated with acrylic urethane, cashew, silicone emulsion coating agent and silicone sol-gel coating agent, and after the surface treatment of bamboo with 12% solution of sodium hypochlorite (example), acrylic urethane, cashew, silicone emulsion coating agent And adhesion experiments when coated with a silicone sol-gel coating. The experimental results are shown in Table 3 below.

Adhesive test designation No surface treatment Surface Treatment (Sodium Hypochlorite) Remarks Acrylic urethane Peeling No peeling off, good adhesion Nails, Pencils2H Cashew Peeling No peeling off, good adhesion Nails, Pencils2H Silicone Emulsion Coating Agent Partially coated Front coating, good adhesion Nails, Pencils2H Silicone Sol-Gel Coating Agent Partial coating, peeling Front coating, good adhesion Nails, Pencils2H

As can be seen in Table 3, when the coating agent was applied without surface treatment with a 12% solution of sodium hypochlorite, only a partial coating, peeling or peeling of the coating film was observed, but with sodium hypochlorite according to the present invention. When the surface treatment is performed and the coating agent is applied, it can be seen that the coating agent is easily applied to improve adhesiveness and thus is not easily peeled off or peeled off.

Experimental Example 3. Microwave Heat Drying Comparison Test

After the surface treatment of the bamboo, when drying by heating, the heating and drying using a microwave and a general heater hot air drying according to the present invention was performed by 100 each, and the results are shown in Table 4.

Heater hot air drying Microwave heat drying Heating heating time 60 ℃ -150 ℃ warming Crack (38/100), Surface Discoloration Light Brown No abnormality, surface primary color Heater Hot Air: 90 minutes
Microwave: 15 minutes 150 ℃ -210 ℃ Crack (64/100), discoloration dark brown No abnormality, surface discoloration light brown Heater Hot Air: 130 minutes
Microwave: 30 minutes

When heated to 60 ℃ -150 ℃ when the heater was heated, it showed cracking phenomenon in 38 bamboos among 100 bamboos, and when warming up to 150 ℃ -210 ℃, it cracked in 64 bamboos among 100 bamboos. In addition, it was found that the higher the heating temperature, the greater the discoloration of the surface. However, no microwave phenomenon occurred during microwave heating and drying. When warmed at a temperature of 60 ° C.-150 ° C., the primary color of bamboo was maintained without discoloration of the surface. However, despite the high temperature at 150 ° C-210 ° C heating during microwave heating drying, there was no cracking because the drying time was shortened, but the surface was light brown. The most preferred microwave heating drying time was found to be 60 ℃ -150 ℃.

For reference, bamboo used as outdoor landscaping facilities is usually used as a traditional bamboo, so if cracking or discoloration occurs during the drying process, the durability of the bamboo will be lowered and the value of the product will be lost. Microwave heat drying at 60 ° C.-150 ° C. to maintain the temperature is particularly important. In addition, when the heater hot air is dried, it takes at least 1 to 4 hours to complete drying, but the microwave drying of the present invention takes a short time of about 10 to 30 minutes, thereby significantly reducing the working time. .

Experimental Example 4: Coating effect of the coating

Silicone emulsion coatings were used as preferred coatings of the invention. Silicone emulsion coatings were prepared by the following formulation ratios. The silicone emulsion coating was coated on the dried bamboo, and naturally dried for at least 1 hour and then forced to dry at 100 ° C for 5 minutes.The surface of the bamboo retained its primary color, exhibited the natural texture of bamboo, and was immersed or sprayed in water. The water did not get wet at all, indicating that the water resistance was excellent. In addition, after heating the gear oven for 30 minutes at a temperature of 120 degrees, the water-repellent and waterproof properties were good even in the immersion test, the coating film was not peeled off or the scratch-resistant test (nail, pencil 2H) was good and the natural texture of the bamboo was maintained.

Silicone Emulsion Ratio

Isobutyltrimethoxysilane: 100 g

2-ethoxyethanol: 7.0 g

n-butanol: 5.0 g

Colloidal silica: 5.0 g (Nalcock 1115, manufactured by Nalcock Chemical Co., Ltd.)

Sorbitan monooleate: 20 g

Distilled Water: 320 g

As described above, the present invention has a photovoltaic panel for generating electricity from sunlight on the upper end of the body portion made of bamboo, and having a configuration for generating light through a predetermined light source connected to the photovoltaic panel, park this It is applied to outdoor facilities such as fences, benches, pagora, street lamps or gardens such as country houses, pensions, gardens, bicycle paths, hiking trails, bollards, fences, and other road median blocks that prevent vehicles and pedestrians from entering. In addition to performing protection and lighting functions, it can provide a more natural and environmentally friendly aesthetic.

In addition, according to the present invention, the bamboo not only cleans and sterilizes foreign substances, epidermal sap, mold, etc. on the surface, but also has excellent durability and elasticity, and does not deteriorate, corrode, and rot due to ozone, acid rain, etc. Scratches or cracks are prevented, and the natural texture of the bamboo can be expressed to the maximum, and when applied to the bamboo structure of the present invention, more natural aesthetics can be realized.

1 illustrates an embodiment of a bamboo structure of the present invention, FIG. 1A is an external perspective view of the bamboo structure, and FIG. 1B is a partially enlarged cross-sectional view of FIG. 1A;

Figure 2 is a variety of applications using the bamboo structure of Figure 1, Figure 2a is a front view of the fence using the bamboo structure of Figure 1, Figure 2b is a front view showing an example of a grass protection fence using the bamboo structure of Figure 1, Figure 2c is a front view showing an example of the grass protection fence using the bamboo structure of Figure 1, Figure 2d is a front view of the bench using the bamboo structure of Figure 1, 2e is a side view of Figure 2d;

3 is a perspective view showing a modification of the bamboo structure shown in FIG.

Figure 4 shows another embodiment of the bamboo structure of the present invention, Figure 4a is an external perspective view of a garden light, street lamp or pole lamp using the bamboo structure of the present invention, Figure 4b is a partially enlarged cross-sectional view of Figure 4a;

5 is a view schematically showing a processing method of bamboo used in the bamboo structure of the present invention;

6 is a view showing the surface of the bamboo processed in accordance with the bamboo processing method of FIG.

<Description of the symbols for the main parts of the drawings>

1 body portion 2 cap member

3: solar cell 4: circuit

5: lighting fixture 2a: opening hole

2b: through hole 2c: exposed window

2d: protective cover 6: bamboo

Claims (10)

Body parts made of bamboo, Solar cell is installed on the top of the body portion, A circuit unit through which electricity generated or charged by the solar cell flows, and A light source connected to the circuit unit, The bamboo is, Applying sodium hypochlorite solution on the surface for 1 to 3 minutes at room temperature; Washing the bamboo to which the sodium hypochlorite solution is applied; Heating and drying the washed bamboo at a temperature of 60 to 150 ° C. for 10 to 30 minutes using a 915 MHz microwave, a 2.45 GHz microwave or a combination of the two microwaves; And 5 to 15 parts by weight of 2-ethoxyethanol, 1 to 10 parts by weight of n-butanol, 1 to 10 parts by weight of colloidal silica, and sorbitan based on 100 parts by weight of isobutyltrimethoxysilane on the surface of the dried bamboo Bamboo structure, characterized in that processed by the method comprising the step of applying a silicone emulsion coating consisting of 10 to 30 parts by weight of monoolate and 300 to 350 parts by weight of distilled water. The method of claim 1, The cap member is coupled to the upper end of the body portion, the cap member is formed with an opening on the upper surface, the solar cell is a predetermined transparent to be in direct contact with the sunlight through the opening or to shield the opening hole Bamboo structure, characterized in that in contact with sunlight through the plate. 3. The method of claim 2, The cap member has a through hole that can be exposed to the outside of the light source, the bamboo structure, characterized in that a plurality is formed at regular intervals along the circumferential surface of the cap member. 3. The method of claim 2, The cap member is provided with a plurality of exposure windows at regular intervals along the circumferential surface of the cap member so that the light of the light source is illuminated or exposed to the outside, the light source is directly exposed to the outside through the exposure window, or the light source Bamboo structure, characterized in that the light is illuminated or exposed to the outside through a transparent or translucent protective cover installed on the exposed window. The method of claim 4, wherein The cap member is configured to have a predetermined depth in the inward direction in order to minimize the dispersion of light from the light source and increase the irradiation amount to the outside, the depth direction is characterized in that it is formed to have a trapezoidal or fan-shaped structure Bamboo structures. Body parts made of bamboo which are built at a certain distance from each other, Connection portion made of bamboo connecting between the body portion, Solar cells installed to be exposed to the outside of the body portion or the connecting portion, A circuit portion through which electricity generated or charged by the solar cell flows, and A light source connected to the circuit unit, The bamboo is, Applying sodium hypochlorite solution on the surface for 1 to 3 minutes at room temperature; Washing the bamboo to which the sodium hypochlorite solution is applied; Heating and drying the washed bamboo at a temperature of 60 to 150 ° C. for 10 to 30 minutes using a 915 MHz microwave, a 2.45 GHz microwave or a combination of the two microwaves; And 5 to 15 parts by weight of 2-ethoxyethanol, 1 to 10 parts by weight of n-butanol, 1 to 10 parts by weight of colloidal silica, and sorbitan based on 100 parts by weight of isobutyltrimethoxysilane on the surface of the dried bamboo Bamboo structure, characterized in that processed by the method comprising the step of applying a silicone emulsion coating agent consisting of 10 to 30 parts by weight of monoolate and 300 to 350 parts by weight of distilled water. The method of claim 6, The connection part has a through hole that can be exposed to the outside of the light source, the through hole is a bamboo structure, characterized in that a plurality is formed at regular intervals along the length end of the connection portion. The method according to any one of claims 1 to 7, The sodium hypochlorite solution is a bamboo structure, characterized in that the concentration is 12% to 90%. The method according to any one of claims 1 to 7, The bamboo structure is used for any one of outdoor facilities including street lamps, electric poles, road dividers, bollards to prevent entry of vehicles or pedestrians, barriers or fences, benches, rose arches, interior columns, towers, gardens, and pagoras. Bamboo structures. The method of claim 9, The light source is a bamboo structure, characterized in that the light bulb, light emitting sheet or LED.

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