KR20190096038A - Panel for soundproof tunnel with sola cell module - Google Patents

Abstract

The present invention relates to a soundproof tunnel panel applied with a solar cell. More specifically, the present invention comprises: a solar cell layer formed by interposing a solar cell module between flexible high molecules; and an adhesion layer formed on one surface of the solar cell layer. The soundproof tunnel panel applied with the solar cell is applied with the solar cell layer in which the solar cell module is interposed between the flexible high molecules so as to be easy to be applied to the conventional soundproof tunnel and has the adhesion layer having excellent transmittance so as to improve efficiency of the solar cell.

Description

Panel for soundproof tunnel with solar cell {PANEL FOR SOUNDPROOF TUNNEL WITH SOLA CELL MODULE}

The disclosed content relates to a panel for a soundproof panel to which a solar cell is applied, and more particularly, a solar cell layer having a solar cell module interposed between flexible polymers is easily applied to an existing soundproof tunnel, and has an adhesive layer having excellent light transmittance. The present invention relates to a panel for a soundproof tunnel to which a solar cell is applied to exhibit an effect of improving the efficiency of the solar cell.

In modern society, due to the rapid industrialization, the traffic volume and the means of transportation are diversified. As the traffic volume and the means of transportation diversify, roads, railroads and airports are expanding.

As mentioned above, the expansion of roads, railroads and airports suffers greatly from the noise generated by means of transportation for residents living near roads, railroads, and airports. The noise standard below the limit is strictly applied.

Conventionally, various kinds of soundproof walls, for example, sound absorption, reflection, interference, resonance, and the like are installed to satisfy the noise standards, and the soundproof walls are mostly exposed to sunlight throughout the day. Therefore, in recent years, convergent soundproof walls having solar cell modules attached to Europe and the United States have been installed. Such a fusion type sound barrier has a noise reduction effect of the sound barrier and energy production through solar power generation.

However, conventionally, solar cell modules installed in soundproof walls are mostly solar cell modules using crystalline polysilicon, and most of them are installed only on the upper part of the soundproof wall or applied to curved portions such as soundproof tunnels. There was a problem of limited construction.

Korean Patent Publication No. 10-2011-006317 (2011. 01. 20). Korean Patent Publication No. 10-2011-107012 (2011. 09. 30).

Disclosed is a solar cell having a solar cell module interposed between the flexible polymer is easy to be applied to the existing soundproof tunnel, the adhesive layer having excellent light transmittance is formed to improve the efficiency of the solar cell It is to provide a panel for the soundproof tunnel applied.

As an example, the contents of the present disclosure include a solar cell layer comprising a solar cell layer interposed between a flexible polymer and a pressure-sensitive adhesive layer formed on one surface of the solar cell layer. It describes a panel for dragons.

Preferably, the solar cell module may be made of a CIGS thin film solar cell.

More preferably, the pressure-sensitive adhesive layer may be composed of 100 parts by weight of acrylic resin, 0.01 to 0.3 parts by weight of UV stabilizer, 0.01 to 0.5 parts by weight of initiator and 0.05 to 1 parts by weight of crosslinking agent.

More preferably, the acrylic resin is selected from the group consisting of butyl methacrylate, hexyl methacrylate, n-octyl methacrylate, isooctyl methacrylate, 2-ethylhexyl methacrylate and isononyl methacrylate. It may be made by copolymerizing at least one acrylic ester monomer and a polar monomer containing a carboxyl group.

Even more preferably, the initiator is 2,2'-azobis (isobutyronitrile), 2,2'-azobis (2-methylbutyronitrile), 2,2'-azobis (2,4 -Dimethylvaleronitrile), 2,2'-azobis (4-methoxy-2,4-dimethylvaleronitrile), 4,4'-azobis (4-cyanovaleric acid), 2.2'-azo Bis {2-methyl-N- [1,1-bis (hydroxymethyl) -2-hydroxyethyl] propionamide, 2.2'-azobis {2-methyl-N-2- (1-hydroxybutyl) Propionamide, dilauroyl peroxide, dibenzoyl peroxide, tert-butyl peroxyneodecanoate, tert-amyl peroxypivalate, di (2-ethylhexyl) peroxydicarbonate, di (3-methoxy Butyl) peroxydicarbonate, 3-hydroxy-1,1-dimethylbutylperoxy neodecanoate, di (3,5,5-trimethylhexanoyl) peroxide, tert-amyl peroxy-2-ethylhexano Ate, tert-butyl peroxy-2-ethylhexanoate, tert-butyl isopropyl monoperoxy Carbonate, tert-butylperoxy-2-ethylhexylcarbonate, dibenzoyl peroxide, tert-amyl (2-ethylhexyl) monoperoxy carbonate, tert-butylperoxy isopropyl carbonate, tert-butyl peroxy benzoate and It may consist of one or more selected from the group consisting of 1,1,3,3-tetramethylbutyl peroxyneodecanoate.

Even more preferably, the crosslinking agent is 1,6-hexanedioldiacrylate, trimethylolpropane triacrylate, pentaerythritoltriacrylate, 1,2-ethylene glycol diacrylate and 1,12-dodecane It may consist of one or more selected from the group consisting of diol acrylate.

Still more preferably, the pressure-sensitive adhesive layer may further contain 1 to 3 parts by weight of the thermally conductive filler relative to 100 parts by weight of the acrylic resin.

Even more preferably, the thermally conductive filler may be made of one or more selected from the group consisting of carbon nanotubes, graphene, graphite, carbon fiber, gold, silver, copper and aluminum.

As described above, the panel for a soundproof tunnel to which a solar cell is applied is easily applied to an existing soundproof tunnel by applying a solar cell layer having a solar cell module interposed between flexible polymers, and an adhesive layer having excellent light transmittance is formed. Excellent effect to improve the efficiency.

1 is an exploded perspective view showing a panel for a soundproof tunnel to which the disclosed solar cell is applied.
2 is a state diagram showing the soundproof tunnel to which the panel for the soundproof tunnel to which the disclosed solar cell is applied.

In the following, preferred embodiments of the present invention and the physical properties of each component will be described in detail, which is intended to explain in detail enough to be able to easily carry out the invention by one of ordinary skill in the art, This does not mean that the technical spirit and scope of the present invention is limited.

The panel for a soundproof tunnel to which the disclosed solar cell is applied includes a solar cell layer 10 formed between a flexible polymer 11 and a solar cell module 12 and an adhesive layer 20 formed on one surface of the solar cell layer 10. )

The solar cell layer 10 is formed through the solar cell module 12 between the flexible polymer 11, the flexible polymer 11 after depositing the solar cell module 12 on one surface of the flexible polymer (11) The solar cell module 12 is interposed therebetween so that the flexible polymer 11 is laminated on one surface of the flexible polymer 11 on which the solar cell module 12 is deposited.

In this case, the flexible polymer 11 may be ultra-high molecular weight polyethylene, polyvinyl alcohol, polyethylene naphthalate, and the like. The flexible polymer 11 made of the above components exhibits high ductility, so that the solar cell layer 10 may be It plays a role of making it easy to apply to curved parts or shapes that are formed in soundproof tunnels, etc., and to roll and store the solar cell layer 10 in the form of rolls. It is easy.

At this time, the solar cell module 12 is preferably using a CIGS thin film solar cell (Copper indium gallium selenide thin-film solar cells) exhibiting the physical properties that can be deposited on the flexible polymer (11).

In addition, the electrical energy generated by the solar cell layer 10 having the structure as described above is charged in a battery provided separately, and controls the charging and discharging of the battery or the electricity charged in the battery lighting or LED road signs and road surface It may be provided with a control unit for supplying a heating wire for preventing ice.

The pressure-sensitive adhesive layer 20 is formed on one surface of the solar cell layer 10 to a thickness of 0.3 to 0.5 millimeters, 100 parts by weight of acrylic resin, 0.01 to 0.3 parts by weight of UV stabilizer, 0.01 to 0.5 parts by weight of initiator and crosslinking agent 0.05 It is preferable to consist of 1 to 1 part by weight.

The acrylic resin is composed of a copolymer of a (meth) acrylic acid ester monomer having an alkyl group having 1 to 12 carbon atoms and a polar monomer copolymerizable with the monomer. Examples of the (meth) acrylic acid ester monomer include butyl (meth). ) Or hexyl (meth) acrylate, n-octyl (meth) acrylate, isooctyl (meth) acrylate, 2-ethylhexyl (meth) acrylate and isononyl (meth) acrylate alone or in combination Although the above combination is mentioned, It is not limited to this. In addition, the polar monomer copolymerizable with the (meth) acrylic acid ester monomer has a function of imparting cohesive force to the pressure-sensitive adhesive to improve adhesive strength, and is not particularly limited as long as it exhibits such a function, and examples thereof include (meth) acrylic acid, Carboxyl group-containing monomers such as maleic acid or fumaric acid; And / or nitrogen-containing monomers such as acryl amide, N-vinyl pyrrolidone or N-vinyl caprolactam. Although the ratio of the (meth) acrylic acid ester monomer and the polar monomer used above is not specifically limited, It is preferable to use 1-20 weight part of polar monomers with respect to 100 weight part of (meth) acrylic acid ester monomers, The (meth) acrylic acid ester monomer is selected from the group consisting of butyl methacrylate, hexyl methacrylate, n-octyl methacrylate, isooctyl methacrylate, 2-ethylhexyl methacrylate and isononyl methacrylate. It is preferable to use at least one polar monomer containing a carboxyl group as the polar monomer.

At this time, the acrylic resin can be produced using a conventional polymerization method, the method is not particularly limited, examples of the method may include radical polymerization, preferably solution polymerization, emulsion polymerization, suspension polymerization, Methods such as photopolymerization or bulk polymerization can be used.

The UV stabilizer contains 0.01 to 0.3 parts by weight, and serves to inhibit yellowing by blocking or reducing the acrylic resin from absorbing ultraviolet rays.

If the content of the UV stabilizer is less than 0.01 part by weight, there is a fear that the yellowing inhibitory effect may not be exhibited. If the content of the UV stabilizer exceeds 0.3 part by weight, the UV transmittance is excessively increased, so that the light transmittance of the adhesive layer 20 is increased. The energy conversion efficiency of the solar cell may be lowered.

The ultraviolet stabilizer may include one or more selected from the group consisting of a metal deactivator, a thermal stabilizer, an ultraviolet absorber, a quencher, a peroxide decomposer, a radical scavenger, and HALS, but is not limited thereto. The heat stabilizer serves to prevent the occurrence of yellowing by inhibiting the generation of heat by ultraviolet irradiation, UV absorber serves to suppress the yellowing through the function of blocking or reducing the ultraviolet absorption of the polymer, the quencher is activated It suppresses the chain initiation reaction by suppressing the chromophore of the resin, thereby improving weather resistance, and the peroxide decomposing agent converts the unstable hydrogen peroxide (ROOH) formed during the decomposition by ultraviolet light into a stable compound. In addition, the radical scavenger removes free radicals generated during decomposition by ultraviolet rays and stops the reaction, thereby increasing the weather resistance of the pressure-sensitive adhesive to prevent yellowing. HALS functions as a peroxide decomposing agent and a radical scavenger. Tetramethyl piperidine (tetramethyl pi) peridine), and its main function is to act as a radical scavenger to remove and stop free radicals.

The specific kind of each ultraviolet stabilizer is not particularly limited, and those commonly used in this field can be used without limitation. Examples of the ultraviolet absorbents include benzophenone-based and / or benzotriazole-based ultraviolet absorbers, and examples of quenchers include Ni-phenolate, and peroxide decomposition agents. Examples of phosphorus- or sulfur-based antioxidants may be mentioned, and examples of radical scavengers include BHT (2,6-di-tert-butyl-4-methylphenol) or ilganox 1076 (irganox 1076; n-octadecyl-3- ( 3'5'di-tert-butyl-4'hydroxyphenyl) propionate), and an example of HALS is bis (2,2,6,6-tetramethyl-4-piperidinyl) sebacate (bis- (2,2,6,6-tetramethyl-4-piperidinyl) sebacate; Tinuvin 770), bis [N-methyl-2,2,6,6-tetramethyl-4-piperidinyl] sebacate (bis- [ N-methyl-2,2,6,6-tetramethyl-4-piperidinyl] sebacate) or dimethyl succinate dimethyl-1- (2-hydroxyethyl) -4-hydroxy-2,2,6,6-tetramethylpy Ferridine (succinic acid dimethyl-1- (2-hydroxyethyl) -4-hydroxy-2,2,6,6-tetramethylpiperidine; Tinuvin 622). The above-mentioned UV stabilizers may be used alone or in combination of two or more of the disclosed solar cell pressure-sensitive adhesives, and it is preferable to select and use those having excellent compatibility with acrylic resins and low cost, but are not limited thereto.

The initiator contains 0.01 to 0.5 parts by weight, is included in the adhesive layer 20 serves to control the degree of polymerization, 2,2'- azobis (isobutyronitrile), 2,2'- azobis ( 2-methylbutyronitrile), 2,2'-azobis (2,4-dimethylvaleronitrile), 2,2'-azobis (4-methoxy-2,4-dimethylvaleronitrile), 4 , 4'-azobis (4-cyanovaleric acid), 2.2'-azobis {2-methyl-N- [1,1-bis (hydroxymethyl) -2-hydroxyethyl] propionamide, 2.2 ' Azobis {2-methyl-N-2- (1-hydroxybutyl) propionamide, dilauroyl peroxide, dibenzoyl peroxide, tert-butyl peroxyneodecanoate, tert-amyl peroxypival Late, di (2-ethylhexyl) peroxydicarbonate, di (3-methoxy butyl) peroxydicarbonate, 3-hydroxy-1,1-dimethylbutylperoxy neodecanoate, di (3,5,5 -Trimethylhexanoyl) peroxide, tert-amyl peroxy-2-ethylhexanoate, tert-butyl peroxy-2-ethylhexanoate, tert-butyl isopropyl monoperoxycarbonate, tert-butylperoxy-2-ethylhexylcarbonate, dibenzoylperoxide, tert-amyl (2-ethylhexyl) mono Preference is given to at least one selected from the group consisting of peroxy carbonate, tert-butylperoxy isopropyl carbonate, tert-butyl peroxy benzoate and 1,1,3,3-tetramethylbutyl peroxyneodecanoate .

The crosslinking agent is contained in 0.05 to 1 parts by weight, and can adjust the adhesive properties of the adhesive layer 20 according to the amount used, 1,6-hexanediol diacrylate, trimethylolpropane triacrylate, pentaerythritol tree Preference is given to at least one selected from the group consisting of acrylate, 1,2-ethylene glycol diacrylate and 1,12-dodecanediol acrylate.

In addition, the adhesive layer may further contain 1 to 3 parts by weight of the thermally conductive fillers compared to 100 parts by weight of the acrylic resin, the thermally conductive fillers quickly transfer heat generated from the solar cell layer to the outside to increase the temperature of the solar cell layer. It is kept constant and serves to suppress the deterioration of the function of the solar cell layer due to heat.

When the content of the thermally conductive filler is less than 1 part by weight, the above effect is insignificant. When the content of the thermally conductive filler is more than 3 parts by weight, the adhesive force of the pressure-sensitive adhesive layer may be lowered without greatly improving the effect. .

In this case, the thermally conductive filler is preferably in the form of a powder exhibiting a particle size of 0.01 to 0.1 millimeters, but when the particle size of the thermally conductive filler is less than 0.01 millimeter, aggregation occurs and the components constituting the adhesive layer. The mixing efficiency is lowered and is easily scattered, so that the workability is not good, and when the particle size of the thermally conductive filler exceeds 0.1 millimeter, the thermal conductivity is lowered and can be easily settled and the mixing property is lowered.

At this time, the thermally conductive filler is preferably made of one or more selected from the group consisting of carbon nanotubes, graphene, graphite, carbon fiber, gold, silver, copper and aluminum, the carbon fiber is not PAN type but PITCH type It is preferable to use.

The carbon nanonote view exhibits a thermal conductivity of 2500 to 6000 W / m · K, the graphene shows a thermal conductivity of 2000 to 5000 W / m · K, and the graphite has a conductivity of 100 to 400 W / m · K. The carbon fiber (PITCH) has a conductivity of 530 to 1100 W / m · K.

In addition, the copper exhibits a thermal conductivity of 480 W / m · K, the silver exhibits a thermal conductivity of 450 W / m · K, the gold exhibits a thermal conductivity of 340 W / m · K, and the aluminum has 200 W / m · K. The thermal conductivity of K is shown.

The adhesive layer 20 made of the above components may transmit wavelengths of 200 nm or more in the cured state, wherein the term “cured state” is deposited after the disclosed adhesive layer 20 is cured and / or crosslinked. Applied to the first means a solid state. As such, it exhibits excellent transmittance with respect to sunlight having a wavelength of 200 nm or more, and specifically, shows light transmittance of 60% or more in the UV-A region, 40% or more in the UV-B region, and 20% or more in the UV-C region. "UV-A", "UV-B", and "UV-C" indicate the classification of ultraviolet rays according to the wavelength, and the case where the wavelength is 320 to 400 nm is usually UV-A, 280 to 320 nm UV-B and the case of 100-280 nm are classified as UV-C.

In addition, the pressure-sensitive adhesive layer 20 made of the above-mentioned component is a yellowing incidence of less than 30% when exposed to ultraviolet rays for 24 hours in a cured state, the yellowing phenomenon refers to a phenomenon that the pressure-sensitive adhesive changes yellow over time, When such a yellowing occurs, not only the solar absorption efficiency of the solar cell is lowered, but also the durability of the solar cell is lowered, so that it cannot be used for a long time.

Therefore, the panel for the soundproof tunnel to which the solar cell having the above structure is applied is applied to the existing soundproof tunnel by applying the solar cell layer 10 having the solar cell module 12 interposed between the flexible polymers 11, The adhesive layer 20 having an excellent light transmittance is formed to have an effect of improving the efficiency of the solar cell.

10; Solar cell layer
11; Flexible polymer
12; Solar cell module
20; Adhesive layer

Claims (8)

A solar cell layer formed through a solar cell module between the flexible polymers; And
Soundproof tunnel panel applied to the solar cell, characterized in that consisting of; adhesive layer formed on one surface of the solar cell layer.
The method according to claim 1,
The solar cell module is a panel for a soundproof tunnel to which the solar cell is applied, characterized in that the CIGS thin film solar cell.
The method according to claim 1,
The adhesive layer is a panel for a soundproof tunnel to which a solar cell, characterized in that consisting of 100 parts by weight of acrylic resin, 0.01 to 0.3 parts by weight of UV stabilizer, 0.01 to 0.5 parts by weight of initiator and 0.05 to 1 parts by weight of crosslinking agent.
The method according to claim 3,
The acrylic resin is at least one acrylic ester selected from the group consisting of butyl methacrylate, hexyl methacrylate, n-octyl methacrylate, isooctyl methacrylate, 2-ethylhexyl methacrylate and isononyl methacrylate A panel for soundproof tunnels to which a solar cell is applied, comprising a copolymer of a monomer and a polar monomer containing a carboxyl group.
The method according to claim 3,
The initiator is 2,2'-azobis (isobutyronitrile), 2,2'-azobis (2-methylbutyronitrile), 2,2'-azobis (2,4-dimethylvaleronitrile) , 2,2'-azobis (4-methoxy-2,4-dimethylvaleronitrile), 4,4'-azobis (4-cyanovaleric acid), 2.2'-azobis {2-methyl- N- [1,1-bis (hydroxymethyl) -2-hydroxyethyl] propionamide, 2.2'-azobis {2-methyl-N-2- (1-hydroxybutyl) propionamide, dilauro Yl peroxide, dibenzoyl peroxide, tert-butyl peroxyneodecanoate, tert-amyl peroxypivalate, di (2-ethylhexyl) peroxydicarbonate, di (3-methoxy butyl) peroxydicarbonate, 3-hydroxy-1,1-dimethylbutylperoxyneodecanoate, di (3,5,5-trimethylhexanoyl) peroxide, tert-amyl peroxy-2-ethylhexanoate, tert-butyl per Oxy-2-ethylhexanoate, tert-butyl isopropyl monoperoxycarbonate, tert-butylperox Cy-2-ethylhexylcarbonate, dibenzoylperoxide, tert-amyl (2-ethylhexyl) monoperoxy carbonate, tert-butylperoxy isopropyl carbonate, tert-butyl peroxy benzoate and 1,1,3, A panel for a soundproof tunnel to which a solar cell is applied, comprising at least one selected from the group consisting of 3-tetramethylbutyl peroxyneodecanoate.
The method according to claim 3,
The crosslinking agent is a group consisting of 1,6-hexanediol diacrylate, trimethylolpropane triacrylate, pentaerythritol triacrylate, 1,2-ethylene glycol diacrylate and 1,12-dodecanediol acrylate Soundproof tunnel panel for solar cells, characterized in that consisting of one or more selected from.
The method according to claim 3,
The adhesive layer is a soundproof tunnel panel for solar cells, characterized in that it contains 1 to 3 parts by weight of the thermally conductive filler compared to 100 parts by weight of the acrylic resin.
The method according to claim 7,
The thermally conductive filler is a carbon nanotube, graphene, graphite, carbon fiber, gold, silver, copper, and a panel for a soundproof tunnel applied to the solar cell, characterized in that consisting of at least one selected from the group consisting of aluminum.

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