KR102144075B1 - Panel for soundproof tunnel with sola cell module - Google Patents

Abstract

The disclosed content relates to a panel for a soundproof tunnel to which a solar cell is applied, and more particularly, comprises a solar cell layer formed by interposing a solar cell module between flexible polymers and an adhesive layer formed on one surface of the solar cell layer.
The soundproof tunnel panel to which the solar cell of the above structure is applied is easy to apply to the existing soundproof tunnel by applying a solar cell layer with a solar cell module interposed between flexible polymers, and an adhesive layer having excellent light transmittance is formed to provide a solar cell. It shows the effect of improving the efficiency of.

Description

Solar cell applied soundproof tunnel panel {PANEL FOR SOUNDPROOF TUNNEL WITH SOLA CELL MODULE}

The disclosed content relates to a panel for a soundproof panel to which solar cells are applied, and more particularly, a solar cell layer with a solar cell module interposed between a flexible polymer is applied, which is easy to apply to an existing soundproof tunnel, and an adhesive layer having excellent light transmittance. The solar cell is formed to improve the efficiency of the solar cell is applied to a soundproof tunnel panel.

In the modern society, due to rapid industrialization, an increase in traffic volume and diversification of means of transportation are being made, and roads, railroads, and airports are being expanded due to the increase in traffic volume and diversification of transportation means.

As described above, the expansion of roads, railroads, and airports is very difficult for residents living around roads, railroads, and airports to suffer from noise generated by transportation. Noise standards below the limit are strictly applied.

Conventionally, in order to satisfy the above noise standards, various types of sound insulation walls, for example, sound absorption type, reflection type, interference type, and resonance type, are installed, but most of the sound insulation walls are exposed to sunlight throughout the day. Therefore, in recent years, fusion-type sound insulation walls with solar cell modules have been installed mainly in Europe and the United States. This fusion-type soundproof wall has the effect of reducing the noise of the soundproofing wall and producing energy through solar power generation.

However, conventional solar cell modules installed on soundproof walls are mostly solar cell modules using crystalline polysilicon, and since most installation angles greatly influence the efficiency, they are installed only on the top of the soundproof wall or where curved parts such as soundproof tunnels are applied. There was a problem with limited construction.

1. Korean Patent Publication No. 10-2011-006317 (2011.01.20.) 2. Korean Patent Publication No. 10-2011-107012 (2011.09.30.)

The disclosed content is that the solar cell layer with the solar cell module interposed between the flexible polymers is applied, so that it is easy to apply to the existing soundproof tunnel, and the adhesive layer with excellent light transmittance is formed to improve the efficiency of the solar cell. It is to provide the applied soundproof tunnel panel.

As one embodiment, the content of this disclosure is a soundproof tunnel to which a solar cell is applied, characterized in that it comprises a solar cell layer formed by interposing a solar cell module between flexible polymers and an adhesive layer formed on one side of the solar cell layer. It describes the dragon panel.

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

More preferably, the adhesive layer may be made of 100 parts by weight of an acrylic resin, 0.01 to 0.3 parts by weight of an ultraviolet stabilizer, 0.01 to 0.5 parts by weight of an initiator, and 0.05 to 1 parts by weight of a 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 formed by copolymerizing one or more acrylic acid ester-based monomers 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-dimethylbutylperoxyneodecanoate, di(3,5,5-trimethylhexanoyl)peroxide, tert-amyl peroxy-2-ethylhexano 8, tert-butyl peroxy-2-ethylhexanoate, tert-butyl isopropyl monoperoxycarbonate, tert-butylperoxy-2-ethylhexylcarbonate, dibenzoyl peroxide, tert-amyl (2-ethylhexyl ) Monoperoxy carbonate, tert-butylperoxy isopropyl carbonate, tert-butyl peroxy benzoate, and 1,1,3,3-tetramethylbutyl peroxyneodecanoate can be composed of one or more selected from the group consisting of have.

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

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

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

The soundproof tunnel panel to which the solar cell is applied as described above is easy to apply to the existing soundproof tunnel because the solar cell layer with the solar cell module interposed between the flexible polymers is applied, and an adhesive layer with excellent light transmittance is formed to prevent the solar cell. It has an excellent effect of improving 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 a soundproof tunnel to which a panel for a soundproof tunnel to which the disclosed solar cell is applied is applied.

Hereinafter, a preferred embodiment of the present invention and the physical properties of each component will be described in detail, but this is for explaining in detail enough that one of ordinary skill in the art can easily implement the invention, This does not mean that the technical spirit and scope of the present invention are limited.

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

The solar cell layer 10 is formed by interposing a solar cell module 12 between the flexible polymers 11, and after depositing the solar cell module 12 on one side of the flexible polymer 11, the flexible polymer 11 The flexible polymer 11 is laminated again on one surface of the flexible polymer 11 on which the solar cell module 12 is deposited so that the solar cell module 12 can be interposed therebetween.

At this time, the flexible polymer 11 may include ultra-high molecular weight polyethylene, polyvinyl alcohol, polyethylene naphthalate, etc., and the flexible polymer 11 made of the above components exhibits high ductility, so that the solar cell layer 10 It serves to easily apply to curved portions or complex portions formed in soundproof tunnels, etc., and because it allows the solar cell layer 10 to be rolled and stored in a roll shape, it is easy to transport or store even if it is manufactured in a large area. It's easy.

In this case, it is preferable to use CIGS thin-film solar cells (Copper indium gallium selenide thin-film solar cells) that exhibit physical properties that can be deposited on the flexible polymer 11 as the solar cell module 12.

In addition, the electric energy generated by the solar cell layer 10 having the structure as described above is charged in a separately provided battery, and controls charging and discharging of the battery or lighting the electricity charged in the battery or LED road signs and road surfaces. A control unit or the like may be provided to supply a hot wire for preventing icing.

The adhesive layer 20 is formed to a thickness of 0.3 to 0.5 mm on one surface of the solar cell layer 10, 100 parts by weight of an acrylic resin, 0.01 to 0.3 parts by weight of an ultraviolet stabilizer, 0.01 to 0.5 parts by weight of an initiator, and 0.05 parts by weight of a crosslinking agent. It is preferably made of 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, and examples of the (meth) acrylic acid ester monomer include butyl (meta ) Acrylate, hexyl (meth) acrylate, n-octyl (meth) acrylate, isooctyl (meth) acrylate, 2-ethylhexyl (meth) acrylate and isononyl (meth) acrylate alone or two Combinations of the above may be mentioned, but are not limited thereto. In addition, the polar monomer copolymerizable with the (meth)acrylic acid ester-based monomer has a function of improving adhesion by imparting cohesiveness to the pressure-sensitive adhesive, 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 acrylamide, N-vinyl pyrrolidone or N-vinyl caprolactam. The ratio of the (meth)acrylic acid ester-based monomer and the polar monomer used in the above is not particularly limited, but it is preferable to use 1 to 20 parts by weight of a polar monomer based on 100 parts by weight of the (meth)acrylic acid ester-based monomer. 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 composed of one or more, and the polar monomer is preferably a polar monomer containing a carboxyl group.

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

The ultraviolet stabilizer is contained in an amount of 0.01 to 0.3 parts by weight, and serves to inhibit yellowing by blocking or reducing the absorption of ultraviolet rays by the acrylic resin.

If the content of the ultraviolet stabilizer is less than 0.01 parts by weight, there is a possibility that the yellowing inhibitory effect may not be exerted, and if the content of the ultraviolet stabilizer exceeds 0.3 parts by weight, the ultraviolet blocking rate is excessively increased, so that the light transmittance of the adhesive layer 20 As a result, the energy conversion efficiency of the solar cell may decrease.

The ultraviolet stabilizer may include at least one selected from the group consisting of a metal deactivator, a heat stabilizer, an ultraviolet absorber, a quencher, a peroxide decomposition agent, a radical scavenger, and HALS, but is not limited thereto. In the above, the heat stabilizer serves to prevent the occurrence of yellowing by inhibiting the generation of heat due to ultraviolet irradiation, the ultraviolet absorber serves to inhibit yellowing through the function of blocking or reducing the absorption of ultraviolet rays of the polymer, and the quencher is activated. By suppressing the chromophore of the resin and inhibiting the chain initiation reaction, it improves weather resistance, and the peroxide decomposition agent converts unstable hydrogen peroxide (ROOH) generated during decomposition by ultraviolet rays into a stable compound. The radical scavenger removes free radicals generated during decomposition by ultraviolet rays and stops the reaction, thereby increasing the weather resistance of the adhesive to prevent yellowing, and HALS functions as a peroxide decomposition agent and a radical scavenger. It is an ultraviolet stabilizer that has a structure of tetramethyl piperidine, and its main function is to act as a radical scavenger to remove and stop free radicals.

The specific type of each of the ultraviolet stabilizers is not particularly limited, and those commonly used in this field may be used without limitation. Examples of the ultraviolet absorber include a benzophenone-based and/or benzotriazole-based ultraviolet absorber, and examples of the quencher include Ni-phenolate, and a peroxide decomposing agent Examples of the phosphorus-based or sulfur-based antioxidants may be mentioned, and examples of the radical scavenger include BHT (2,6-di-tert-butyl-4-methylphenol) or irganox 1076; n-octadecyl-3-( 3'5'di-tert-butyl-4'hydroxyphenyl)propionate) and the like, and examples of HALS include 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 succinic acid dimethyl-1-(2-hydroxyethyl)-4-hydroxy-2,2,6,6-tetramethylpi Peridine (succinic acid dimethyl-1-(2-hydroxyethyl)-4-hydroxy-2,2,6,6-tetramethylpiperidine; Tinuvin 622), and the like. The UV stabilizers listed above may be used alone or in combination of two or more in the disclosed adhesive for solar cells, and it is preferable to select and use one having excellent compatibility with an acrylic resin and inexpensive, but is not limited thereto.

The initiator is contained in an amount of 0.01 to 0.5 parts by weight, and is included in the adhesive layer 20 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 Rate, 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 peroxy-2-ethylhexanoate, tert-butyl isopropyl monoperoxycarbonate, tert-butylperoxy- 2-ethylhexylcarbonate, dibenzoylperoxide, tert-amyl (2-ethylhexyl) monoperoxy carbonate, tert-butylperoxy isopropyl carbonate, tert-butyl peroxy benzoate and 1,1,3,3- It is preferable to consist of at least one selected from the group consisting of tetramethylbutyl peroxyneodecanoate.

The crosslinking agent is contained in an amount of 0.05 to 1 part by weight, and the adhesive properties of the adhesive layer 20 can be adjusted according to the amount of use, 1,6-hexanediol diacrylate, trimethylolpropane triacrylate, pentaerythritol tri It is preferably composed of 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 a thermally conductive filler relative to 100 parts by weight of the acrylic resin, and the thermally conductive filler rapidly transfers heat generated from the solar cell layer to the outside, thereby reducing 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.

If the content of the thermally conductive filler is less than 1 part by weight, the above effect is insignificant, and when the content of the thermally conductive filler exceeds 3 parts by weight, the above effect may not be greatly improved, and the adhesive strength of the adhesive layer may decrease. .

At this time, the thermally conductive filler is preferably in the form of a powder having a particle size of 0.01 to 0.1 millimeters, and when the particle size of the thermally conductive filler is less than 0.01 millimeters, agglomeration phenomenon occurs and the components constituting the adhesive layer Mixability is deteriorated and easily scattered, resulting in poor workability, and when the particle size of the thermally conductive filler exceeds 0.1 millimeter, the heat conduction efficiency is deteriorated and can be easily settled, resulting in lower mixingability.

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

The carbon nanoview shows a thermal conductivity of 2500 to 6000 W/m·K, the graphene exhibits a thermal conductivity of 2000 to 5000 W/m·K, and the graphite has an annual conductivity of 100 to 400 W/m·K. And the carbon fiber (PITCH) exhibits an annual conductivity of 530 to 1100W/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 is 200 W/m· It represents the thermal conductivity of K.

The adhesive layer 20 made of the above components can transmit a full-band wavelength of 200 nm or more in a cured state, and the disclosed term "cured state" is deposited after the disclosed adhesive layer 20 is cured and/or crosslinked. It is applied to a material and means a state of hardening. As such, it exhibits excellent transmittance for sunlight having a wavelength of 200 nm or more, and in detail, it exhibits 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. The "UV-A", "UV-B" and "UV-C" represent the classification of ultraviolet rays according to the wavelength, and generally, UV-A when the wavelength is 320 to 400 nm, and when the wavelength is 280 to 320 nm UV-B, and cases in the range of 100 to 280 nm are classified as UV-C.

In addition, the adhesive layer 20 made of the above components has an incidence of yellowing of less than 30% when exposed to ultraviolet rays for 24 hours in a cured state, and the yellowing phenomenon refers to a phenomenon in which the adhesive turns yellow with time, When such a yellowing phenomenon occurs, not only the solar absorption efficiency of the solar cell decreases, but also durability reliability decreases, making it impossible to use it stably for a long time.

Therefore, in the soundproof tunnel panel to which the solar cell having the above structure is applied, the solar cell layer 10 in which the solar cell module 12 is interposed between the flexible polymer 11 is applied, so that it is easy to apply to the existing soundproof tunnel, The adhesive layer 20 having excellent light transmittance is formed to improve the efficiency of the solar cell.

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

Claims (4)

A solar cell layer made by interposing a solar cell module between flexible polymers; And
Consisting of; an adhesive layer formed on one surface of the solar cell layer,
The adhesive layer is composed of 100 parts by weight of an acrylic resin, 0.01 to 0.3 parts by weight of an ultraviolet stabilizer, 0.01 to 0.5 parts by weight of an initiator, and 0.05 to 1 parts by weight of a crosslinking agent,
The adhesive layer further contains 1 to 3 parts by weight of a thermally conductive filler relative to 100 parts by weight of the acrylic resin,
The thermally conductive filler is made of at least one selected from the group consisting of carbon nanotubes, graphene, and carbon fibers,
The solar cell module is a soundproof tunnel panel to which a solar cell is applied, characterized in that consisting of a CIGS thin film solar cell. The method according to claim 1,
The acrylic resin is at least one acrylic acid ester selected from the group consisting of butyl methacrylate, hexyl methacrylate, n-octyl methacrylate, isooctyl methacrylate, 2-ethylhexyl methacrylate, and isononyl methacrylate. A solar cell-applied soundproof tunnel panel, characterized in that it is formed by copolymerizing a monomer and a polar monomer containing a carboxyl group. The method according to claim 1,
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 One 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-butylperoxy-2-ethylhexyl carbonate, dibenzoyl peroxide, tert-amyl (2-ethylhexyl) monoperoxy carbonate, A solar cell comprising at least one selected from the group consisting of tert-butylperoxy isopropyl carbonate, tert-butyl peroxy benzoate, and 1,1,3,3-tetramethylbutyl peroxyneodecanoate. Soundproof tunnel panel applied. The method according to claim 1,
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 to which a solar cell is applied, characterized in that consisting of one or more selected from.

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