TWI448492B - Masterbatch, and such a liquid composition of use - Google Patents

Description

Masterbatch, liquid composition and use of such materials [Related application]

The present application claims priority to Japanese Patent Application No. 2009-177350, filed on Jan. 30, 2009, which is hereby incorporated by reference.

The present invention relates to a method for improving physical properties of a resin member for photovoltaic power generation, and a resin property improver used therefor. More specifically, in a solar power generation module in which a polymer (hereinafter sometimes referred to as a "polymer-binding functional agent") which combines a function selected from an ultraviolet absorber, a photosensitizer, and an antioxidant is used, The physical property improving method of the resin member to be used, the resin physical property improver used, the solid resin composition or the liquid composition, and the resin component article and the solar power generation module which have been improved in physical properties.

In today's society, energy dependence on electricity is increasing. From the perspective of dependence on electricity, for example, electrical products and information devices that are used in homes and civic life, as well as urban public facilities, commercial facilities, and power sources and information transmission electronics in all industries. Machines, in terms of transportation, are not only a large number of transportation vehicles such as trams and trains, but even the power source of the vehicles used by individuals has also tried to change from plug-in hybrids to fully electric vehicles.

With regard to the supply of such power, due to the dependence of thermal power generation on fossil fuels such as coal, oil, natural gas and atomic power generation, environmental problems and safety (especially the crisis of global warming caused by carbon dioxide emissions) Sense), the demand for clean energy is improving. In addition to the conventional hydroelectric power generation, although there are wind power generation, geothermal power generation, etc., the solar power generation module used as a clean energy source can be used from a small device to a large equipment, and the installation place is not limited. In view of the ease of installation and safety of general residential and office roofs, etc., it is attracting attention. Regardless of whether the state and the autonomous agencies promote the introduction, they are rapidly gaining popularity. Moreover, with the development of the secondary battery, the electrical power of the solar power generation module can be directly utilized or sold, and the household can also store electricity, which is related to the expansion of the introduction.

Solar power generation uses solar energy conversion components such as neodymium battery semiconductors to directly convert solar energy into electrical energy. When the energy conversion element is directly exposed to the external environment, the function of the energy conversion element is lowered and the deterioration is promoted. Therefore, the energy conversion element is sandwiched by an adhesive resin layer called a "sealing material" and covered with a protective film. The sealing material sheet is used, for example, from the viewpoints of adhesion, transparency, strength, impact resistance, chemical resistance, and the like, for example, ethylene ‧ vinyl acetate copolymer or ethylene ‧ acrylate copolymer, or a carboxylic acid thereof Copolymer, ionic polymer, or butyral resin. The resin material used in these sealing materials is a resin material excellent in durability, but since it will span a very long period of use, it is here In the state, coloring, discoloration may occur, or cracking may occur when the physical properties of the resin are lowered. Therefore, it is expected that weather resistance will be improved.

In the method of improving the physical properties of the resin material, there is a proposal to improve the ultraviolet absorber, the light stabilizer, the thermal antioxidant, and the organic peroxide in the sealing resin layer (Patent Document 1: Japanese Patent) Kaiping No. 9-116182). Further, there is also a proposal to formulate a benzotriazole system or a trisole in an ethylene ‧ (meth)acrylic acid copolymer or an ionic polymer thereof. An ultraviolet absorber, a hindered amine light stabilizer, and a hindered phenol type antioxidant (Patent Document 2: JP-A-2001-261904). It has also been proposed to blend white-based inorganic pigments, cross-linking agents, triallyl cyanurate in ethylene ‧ polar monomer copolymers, and blend them into UV absorbers, light stabilizers, and antioxidants. Additive (Patent Document 3: Japanese Patent Laid-Open Publication No. 2006-36874). In addition, it has been proposed to incorporate ruthenium oxide as a UV absorber, and a diphenyl ketone-based ultraviolet absorber as a UV absorber (Patent Document 4: JP-A-2006-186233).

In addition, a polymer-binding functional agent that binds a functional agent such as an ultraviolet absorber, a light stabilizer, or an antioxidant to a polymer chain is known (Patent Document 5: Japanese Patent Laid-Open Publication No. 2001-19711, Patent Literature) 6: Japanese Patent Laid-Open Publication No. 2003-253248, and Patent Document No. JP-A-2005-054183. However, these documents combine these polymers with functional agents and trees used in solar power modules. The combination of the fat members is not disclosed.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. Hei 9-116182

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2001-261904

[Patent Document 3] Japanese Patent Laid-Open Publication No. 2006-36874

[Patent Document 4] Japanese Patent Laid-Open Publication No. 2006-186233

[Patent Document 5] Japanese Patent Laid-Open Publication No. 2001-19711

[Patent Document 6] Japanese Patent Laid-Open Publication No. 2003-253248

[Patent Document 7] Japanese Patent Laid-Open Publication No. 2005-054183

However, such additives such as ultraviolet absorbers, photosensitizers, and antioxidants are often insufficient in solubility and compatibility with resin materials (especially polyolefin resin materials). Moreover, if the amount of addition is large, the surface of the exudation gradually appears or the transparency is lowered during the use period. Further, since these are low-molecular-weight compounds, volatilization occurs when added to a resin material and subjected to heat-kneading processing, and if the actual content is reduced, the effect is lowered. At the same time, the volatilization will result in loss of materials, and there will be concerns about contamination of the forming machine and contamination of the working environment. Moreover, these compounds may be dissolved in warm water, acidic or alkaline water, and dissolved in solvents and oils. Concerns. In particular, the amine-based light stabilizer may be deteriorated in performance and eluted due to acid rain or the like. In view of this, it is difficult to obtain sufficient stability required for long-term use, and it is expected that the above-mentioned functional agent can be further improved and developed.

The inventors of the present invention have found that the above-mentioned various problems can be solved by applying a polymer material in which a polymer is combined with various physical property improving additives as described above and applied to a resin member used in a photovoltaic power generation module. The present invention has been completed.

Therefore, an object of the present invention is to provide a resin physical property improver which is improved in the outdoor exposed physical properties of a resin member used in a photovoltaic power generation module.

Furthermore, an object of the present invention is to provide a method for improving the outdoor exposed physical properties of a resin member used in a solar power generation module.

Furthermore, it is an object of the present invention to provide a masterbatch comprising a resin physical property improver which is improved in the outdoor exposed physical properties of the resin member used in the photovoltaic power generation module.

Furthermore, it is an object of the present invention to provide a resin composition improving agent which is improved in the outdoor exposed physical properties of the resin member used in the photovoltaic power generation module described above, and is used as a liquid composition of a coating agent or a coating material.

Furthermore, the present invention provides that the polymer will be combined with various physical properties. A good polymer material which is a good additive and is used for improving the outdoor exposed physical properties of the resin member used in the solar power generation module.

In the present invention, one or two or more kinds of resin physical property improvers which are improved in the outdoor exposed physical properties of the resin member used in the solar power generation module are selected from the group consisting of ultraviolet absorbers, light stabilizers, and antioxidants. One or more functional agents, a polymer binding functional agent bonded to the polymer.

Furthermore, the method for improving the outdoor exposed physical properties of the resin member used in the photovoltaic power generation module according to the present invention includes the resin member improved by adding the resin physical property improver of the present invention to a solar power generation module. Or a method of applying or attaching on the surface of the above resin material.

In the masterbatch of the present invention, the resin physical property improver of the present invention is mixed with a resin similar to the above resin member or a synthetic resin and/or a resin wax compatible therewith, and kneaded to form a sheet. Shape or granular shape.

Further, the present invention is a liquid composition used as a coating agent or a coating material, and the resin physical property improving agent of the present invention is dispersed or dissolved in a liquid medium together with a film forming material as needed.

According to the present invention, the resin used for the components of the photovoltaic power generation module can be used. The material imparts good durability. Since the ultraviolet absorber, the hindered amine light stabilizer, and the functional component of the hindered phenol antioxidant are chemically bonded to the polymer, even when heated, there is no loss due to sublimation. Environmental pollution occurs and will not be dissolved by rain, environmental water or oil and solvents, and it will be effective in maintaining effective effects over a long period of time. Further, by selecting a polymer system to be compatible with the resin material used for the member of the photovoltaic power generation module, and even having good compatibility, a large amount of the functional component can be stably added to the resin material. Further, the resin physical property improver of the present invention can be easily used by simultaneously adding a plurality of kinds to a resin material, and it is also advantageous to simultaneously improve various physical properties of the resin.

<Resin member used in solar power generation module>

The resin member used in the photovoltaic power generation module to which the resin property improving agent of the present invention is applied may, for example, be a sealing member resin, a surface coating resin, or a resin member of an adhesive.

The basic structure of the solar power generation panel is to sandwich the resin layer of the solar cell power generation material (solar cell) by the sealing material, and then attach the glass plate to the sealing resin layer on the side of the sunlight. On the back surface and the side surface, a film coated with a surface coating resin (back sheet) is attached to the sealing resin layer.

Sealing resin is required to have glass, solar cells and backsheets It is excellent in long-term adhesion, soft, and excellent in sealing properties of solar cells, high in transmittance of solar rays, and excellent in transparency. Further, reactivity such as heat resistance, high temperature resistance, water resistance, moisture resistance, weather resistance, and the like, and reactivity such as crosslinkability are required.

Examples of the sealing material resin having such properties include a polyolefin polymer, a polyether polymer, a polyester polymer, a polyamide polymer, a polyvinyl polymer, and a polyketone. A polymer, a polyurethane polymer, or the like. Among them, a polyolefin-based polymer, particularly a vinyl-based copolymer resin, preferably has the above properties, and is more suitable as a sealant resin. For example: ethylene ‧ vinyl acetate copolymer, ethylene ‧ unsaturated carboxylic acid alkyl (carbon number 1 ~ 8) ester copolymer, ethylene ‧ unsaturated carboxylic acid copolymer, ethylene ‧ unsaturated carboxylic acid alkyl (carbon number 1 ~8) ester ‧ unsaturated carboxylic acid copolymer, and such ionic polymer, etc., specifically, for example, ethylene ‧ vinyl acetate copolymer; ethylene ‧ (methyl) methacrylate copolymer, ethylene ‧ Ethyl (meth) acrylate copolymer, etc.; ethylene ‧ (methyl) acrylate ‧ (meth) acrylate copolymer, ethylene ‧ (meth) acrylate ‧ (meth) acrylate copolymer, etc. A saturated carboxylic acid copolymer, such an ionic polymer or the like is also preferred, and a polyvinyl butyral resin, a urethane resin, an anthracene resin, a fluororesin or the like is also preferred.

Further, the surface-coated resin (that is, the back sheet) is a resin film coated with the back surface or the side surface side, and is directly exposed to the external environment of the installation place. Therefore, in addition to mechanical strength, electrical insulation, chemical resistance, etc., resistance Environmental resistance such as heat, water resistance, moisture resistance, and salt tolerance is also a very important property. The resin can be, for example, a known fluorine-based resin, a polyolefin-based resin, a polyvinyl-based resin, a poly(meth)acrylic resin, a polyether-based resin, a polyester-based resin, a polyamine-based resin, or a polymer having excellent weather resistance. A carbonate resin, a polyfluorenone resin, or the like. Particularly preferred are polyester resins, fluorine resins, and cyclic polyolefin resins.

Examples of the polyester resin include polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, and polyethylene naphthalate. A polyester film such as an ester or a polybutylene naphthalate or the like may be used, such as an aluminum foil laminated polyester film, a metal film which is vapor-deposited by metal evaporation or cerium oxide, or the like.

The physical property improver of the present invention may be added to an adhesive used in a photovoltaic power generation module.

The binder is preferably an adhesive which is known to be used in a lamination or a molten manner. The lamination adhesive is in the form of an adhesive, and examples thereof include a dry lamination adhesive, a wet lamination adhesive, a solventless lamination adhesive, a hot melt adhesive, and the like. The resin component of the above-mentioned adhesive agent may, for example, be an ethylene copolymer resin such as ethylene ‧ vinyl acetate resin, ethylene ‧ acrylate resin or ethylene ‧ methacrylate resin; or an acrylic resin such as an acrylate resin or a methacrylate resin; Rubber-based resins such as nitrile rubber, chloroprene rubber, styrene ‧ butadiene rubber, and styrene-isoprene rubber; hydrogenated resins, polyester resins, and polyamines of these rubber resins An adhesive such as a formate resin, a polyamide resin, a polyamide-imine resin, a polyimide resin, or a polyoxyalkylene resin. Further, for example, an epoxy group, an isocyanate group, a blocked isocyanate group, an alkoxymethyl group, a carbodiimide group, a hydroxyl group, a carboxyl group, etc. may be introduced into the polymer chain of the resin component of the above-mentioned adhesive agent. A reactive adhesive or a self-crosslinking adhesive of the reactive group. Further, for example, in the above reactive adhesive or self-crosslinking adhesive, a known crosslinking agent such as an epoxy crosslinking agent, an isocyanate crosslinking agent, or an alkoxymethyl melamine crosslinking agent may be used in combination. a crosslinkable adhesive. Further, for example, a polymerizable oligomer such as a polymerizable adhesive, an ultraviolet curable adhesive, or an electron beam curable adhesive, or a polymerizable adhesive containing a polyfunctional polymerizable monomer may be used.

Further, the resin component of the melt-extruded adhesive may be, for example, a polyethylene resin, ethylene, acrylic acid, methacrylic acid, metal salts, vinyl acetate, acrylate, or methacrylate. A copolymer resin of a body; a known thermoplastic resin such as a polypropylene resin or an acid-modified polypropylene resin, or the like.

<Polymer binding functional agent>

In the present invention, one or two or more kinds of functional agents selected from the group consisting of an ultraviolet absorber, a light stabilizer, and an antioxidant are referred to as a "polymer-binding functional agent".

In the present invention, the functional agent constituting the polymer binding functional agent may be selected from the group consisting of an ultraviolet absorber, a photostabilizer, and an antioxidant. The ultraviolet absorber may, for example, be a benzotriazole system or a hydroxyphenyl group. A benzophenone-based, a benzoate-based, a salicylate-based, and a cyanoacrylate-based ultraviolet absorber. Further, the photostabilizer may, for example, be a hindered amine light stabilizer. Further, examples of the antioxidant include a hindered phenol-based and a phosphite-based antioxidant.

These functional agents may be used alone or in combination of two or more. It is preferred to use a combination of functions. The reason is that various physical properties such as a sealing material resin can be improved. Such a combination can be used by combining a plurality of functional agents into the same polymer molecule, or a combination of various polymers of the combined functional agents can be used, and the two methods can be combined.

In the present invention, the polymer constituting the polymer-binding functional agent is preferably selected from the types of resin members used in the solar power generation module to be improved, and the resin member used in the solar power generation module is selected. A polymer that is compatible. Preferred examples of the polymer include a polyolefin polymer, a poly(meth)acrylate polymer, a polyvinyl polymer, a polyether polymer, a polyester polymer, and a polyamine. A polymer chain such as a polymer, a polyfluorenone polymer, or a polyurethane polymer.

Regarding the ethylene-based copolymer which is most commonly used as a sealing material resin for a photovoltaic power generation module, the polymer chain may, for example, be a vinyl styrene copolymer having a reactive hydroxyl group, or ethylene vinyl alcohol. Vinyl acetate copolymer, vinyl alcohol, ethylene butyral copolymer, etc.; ethylene having a carboxylic acid-derived group such as a carboxyl group, an acid anhydride group, an acid halide group or a lower alkyl ester group. (Meth)acrylic acid copolymer, ethylene ‧ (meth)acrylic acid (carbon number: 1-8) ester ‧ (meth)acrylic acid copolymer, these acid halide derivatives, ethylene ‧ maleic anhydride copolymerization , ethylene ‧ (meth) acrylate lower alkyl (carbon number: 1-4) ester copolymer; ethylene propylene (meth) acrylate propylene acrylate copolymer with epoxy propyl, chlorohydrin, vinyl (meth)acrylic acid alkyl group (carbon number: 1-8) ester ‧ (meth)acrylic acid glycidyl ester copolymer, etc., preferably using one or more polymers selected from the above And the polymer obtained.

Further, in the case of the backing resin, a polymer chain of the same kind as the resin is preferably used in terms of compatibility and physical properties, and specific examples thereof include a fluorine-based polymer and a polyolefin-based polymer. A polyvinyl polymer, a poly(meth)acrylic polymer, a polyether polymer, a polyester polymer, a polyamine polymer, a polycarbonate polymer, a polyketone polymer or the like.

In particular, in the case of a back sheet resin-based polyester resin film, it is preferred to use a glycol such as ethylene glycol, propylene glycol or butylene glycol, and a dicarboxylic acid such as terephthalic acid or naphthalene dicarboxylic acid. A carboxylic acid, and derivatives of such methyl esters, diglycol esters, halides, etc., and form a polyester chain.

The method of bonding the polymer to the functional agent is preferably formed by a reaction between the reactive group introduced into the residue of the functional agent and the polymer.

The polymer binding functional system used in the present invention can be in accordance with a known method. The production can be carried out, for example, according to the method described in JP-A-2001-19711, JP-A-2003-253248, and JP-A-2005-054183.

A functional agent residue belonging to a chemical structure exhibiting various functional properties is formed by or in combination with various reactive groups capable of binding to a polymer, and is bonded to a polymer via the reactive group.

The functional group residue of the specific compound of the benzotriazole-based ultraviolet absorber may, for example, be: [3-alkyl (carbon number 0-4)-4-hydroxy-5-(2H-benzotriazole-2) -yl)-phenyl] residue, [3-alkyl (carbon number 0-4)-4-hydroxy-5-(2H-benzotriazol-2-yl)-phenyl] residue, [2 -alkyl (carbon number 0-4)-3-hydroxy-4-(2H-benzotriazol-2-yl)-phenyl-oxyl] residue, [2-alkyl (carbon number 0-4) a benzotriazole-based ultraviolet absorber residue such as a 3-hydroxy-4-(5-chloro-2H-benzotriazol-2-yl)-phenyl-oxyl residue.

The reactive group to be introduced into the ultraviolet absorber residue may, for example, be an alkyl group (carbon number 1 to 6) carboxylic acid, a lower alkyl group (carbon number 1 to 6) ester, an acid halide, or the like. a hydroxyalkyl group (carbon number 1 to 10) ester, (2-hydroxy-3-alkyl (carbon number 1-20) oxy) propyl ester, (2-hydroxy-3-phenyl-oxy) propyl ester, An alkyl group (carbon number 1 to 6) alcohol, (2-hydroxy-3-alkyl (carbon number: 1 to 20) oxy) propane, (2-hydroxy-3-phenyl-oxy) propane, ( 2-hydroxy-3-alkyl (carbon number 1-20) carbonyloxypropane, in addition to, for example, such as with, for example, a tricarboxylic anhydride, a tetracarboxylic anhydride, a tricarboxylic anhydride, a monohalide, a glycidol Bifunctionality obtained by reacting a polyfunctional compound such as a diepoxy compound Derivative basis, etc. One or two or more kinds of reactive groups are selected from the above, and one or two or more of them are introduced into a functional agent residue, and are used in combination with a polymer. .

Again, three The functional residue of the ultraviolet absorber is, for example, [4-[4,6-bis(alkyl (carbon number 0-4) phenyl)-1,3,5-three -2-yl]-3-hydroxyphenyl-oxy] residue, [4-(4,6-diphenyl-1,3,5-three a 2-yl)-3-hydroxyphenyl-oxyl group or the like, and the reactive group is as described above, and examples thereof include an alkylene group (carbon number: 1 to 6) carboxylic acid and a lower alkyl group (carbon number). 1~6) ester, acid halide, hydroxyalkyl (carbon number 1-10) ester, (2-hydroxy-3-alkyl (carbon number 1-20) oxy) propyl ester, (2-hydroxy-3) -Phenyl-oxy)propyl ester, alkyl (C 1 to 6) alcohol, (2-hydroxy-3-alkyl (C 1-20) oxy) propane, (2-hydroxy-3- Phenyl-oxy)propane, (2-hydroxy-3-alkyl (carbon number: 1-20) carbonyloxy) propane, in addition to, for example, such as with tricarboxylic anhydride ‧ monocarboxylic acid, four A difunctional derivative group obtained by reacting a carboxylic anhydride, a tricarboxylic anhydride, a monohalide, a glycidyl alcohol, or a diepoxy compound. The reactive group is as described above, and one or two or more reactive groups are selected in consideration of the reactive group of the polymer, and one or two or more are introduced into the functional agent residue, and are used in polymerization. The combination of things.

The hindered amine light stabilizer has a reactive base, and examples thereof include 4-hydroxy-2,2,6,6-tetramethyl-4-piperidine, 4-hydroxy-1,2,2,6. 6-pentamethyl-4-piperidine, 1-octyloxy-4-hydroxy-2,2,6,6-tetramethyl-4-piperidine, 2,4-bis[N-butyl-N -(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl)amino]-6-(2-hydroxyethylamine)-1,3,5-three Wait. One or more types of reactive hindered amine light stabilizers can be combined with the polymer.

The hindered phenol-based antioxidant has a reactive group, and examples thereof include ethyl 3-(3',5'-di-t-butyl-4'-hydroxyphenyl)propionate and 3-(3-third-butyl). Ethyl 5-methyl-4-hydroxyphenyl)propanoate, ethyl 3,5-di-t-butyl-4-hydroxybenzoate, and the like. One or more kinds of reactive hindered phenol-based antioxidants can be combined with the polymer.

When the polymer is in the form of a polyester resin film, it is preferred to use a bifunctional derivative when introducing a functional agent bonded to the polymer chain, when it is incorporated into the main chain of the polymer chain. It is preferred to use a reactive group into which a monofunctional group is introduced in the side chain or the terminal.

A preferred method for introducing a functional agent into a polymer is a method in which a functional agent forms a bifunctional compound having two reactive groups, and the functional agent is added during polymerization of the polyester, and a co-condensation reaction is simultaneously carried out. . In addition to the functional agent for introducing two hydroxyl groups or carboxyl groups into the molecule as described above, it is preferred to use, for example, a functional agent having one hydroxyl group, such as butane tetracarboxylic anhydride, trimellitic anhydride, and homobenzene. a reaction of tetraic anhydride, trimellitic anhydride, monochloride, etc., and introduction of a bifunctional functional agent of two carboxyl groups, and reaction of a functional agent having one carboxyl group with, for example, a glycidyl alcohol or a diepoxide compound, A bifunctional functional agent having two hydroxyl groups.

<Master material ‧ liquid composition>

The resin physical property improver of the present invention can be used in the form of a polymer in combination with a functional agent, but it is preferably easy to use, and it is preferred to use a polymer having a functional agent in combination with a resin member to be improved in physical properties or It is mixed with a synthetic resin and/or a resin wax which are compatible with each other, and kneaded to form a masterbatch shape which is formed into, for example, a flake shape or a granular shape, and then used.

According to a preferred embodiment of the present invention, the content of the polymer binding functional agent of the masterbatch is appropriately determined in consideration of factors required for the required properties, the kind and combination of the functional agents used, the type of the resin member to be applied, and the like. The polymer-binding functional agent containing 5 to 95% by mass (preferably 10 to 60% by mass) of the functional agent residue, either alone or in combination, is used as a synthetic resin or wax used as a dispersion medium, and a master batch. The content of the functional agent portion is in the range of 2 to 30% by mass.

The amount of the masterbatch to be added to the resin member used in the photovoltaic power generation module is appropriately determined in consideration of factors such as the required performance, the type and combination of the functional agents used, and the type of the resin member to be applied, and generally depends on the resin member. The masterbatch is added in such a manner that the total amount of the functional agent components contained in 100 parts by mass is 2 to 30 parts by mass.

Furthermore, according to another aspect of the present invention, the resin physical property modifier of the present invention preferably disperses or dissolves the polymer binding functional agent in a suitable liquid medium to form a liquid composition, which is then used as a coating or The coating agent is used. The amount of the polymer binding functional agent in the liquid composition is It can be appropriately determined by considering the required performance, the kind and combination of the functional agents used, the kind of the resin member to be applied, and the like, for example, a polymer-binding functional agent containing 5 to 95% by mass of the functional agent residue becomes a functional agent. Some parts contain a concentration of 2 to 30% by mass. In the liquid composition of this aspect, a coating film forming material may be added as needed.

Specific examples of the liquid medium of the liquid composition of the present invention include ester solvents such as ethyl acetate and butyl acetate; ketone solvents such as methyl ethyl ketone, methyl isobutyl ketone and cyclohexanone; and cyclohexane. A hydrocarbon solvent such as cyclohexane or xylene; a glycol ether solvent such as propylene glycol monomethyl ether, propylene glycol monoethyl ether or propylene glycol monomethyl ether acetate; an alcohol solvent such as isopropyl alcohol or butanol; and the like.

Further, specific examples of the coating film forming material to be added to the liquid composition of the present invention include, for example, ethylene, vinyl acetate, acrylate, methacrylate, acrylic acid, methacrylic acid, and the like. a copolymer resin; an acrylic resin such as an acrylate resin or a methacrylate resin; and a polyester resin, a polyurethane resin, etc., and an epoxy group, an isocyanate group, a blocked isocyanate group, etc. may be introduced into the above resin. A reactive resin or a self-crosslinking resin having a reactive group such as an alkoxymethyl group, a carbodiimide group, a hydroxyl group or a carboxyl group. Further, for example, a crosslinkable resin such as a known crosslinking agent such as an epoxy crosslinking agent, an isocyanate crosslinking agent or an alkoxymethyl melamine crosslinking agent may be used in combination with the above-mentioned reactive resin or self-crosslinking resin. A coating film forming material is known.

In the present invention, the polymer binding functional agent is directly or formed into a masterbatch or a liquid composition containing the same, and the physical properties of the resin material used in the solar power generation module are improved, and the amount of the functional agent at this time is appropriate. Decide. According to a preferred embodiment of the present invention, the amount of the functional agent component is preferably 0.5 to 15 parts by mass, and the light stabilizer is 0.5 to 20 parts by mass, based on the amount of the ultraviolet absorber or the amount of the resin material. The antioxidant is set to be 0.1 to 20 parts by mass. According to a preferred aspect of the invention, the functional agents are preferably used in combination. As described above, a plurality of functional agents may be used in combination with the same polymer molecule, or a polymer combining various functional agents may be used in combination, or both of them may be combined. Further, it is preferable to use a combination of the same functional ingredients. For example, a polymer-binding functional agent using a benzotriazole-based ultraviolet absorber, and three A polymer binding functional agent which is a UV absorber is also preferred.

The photovoltaic power generation battery to which the present invention is applied is not particularly limited, and a known battery can be used. The lanthanide system has a single crystal, a double crystal, a microcrystalline or an amorphous ruthenium film, and can be used in the form of a film type, a composite type, a tandem type, or a spherical shape. A known compound system, a dye-sensitized titanium oxide type, an organic thin film type, a quantum dot type, or the like can be used.

A sealing material sheet (high weather resistance ‧ high resin physical sealing material sheet) or a back coating film (high weather resistance ‧ high physical property back coating film) for improving weather resistance and resin physical properties by using a polymer binding functional agent of the present invention The method of modulating the solar power generation module is carried out in accordance with a conventional method. If one example, The solar photovoltaic power generation battery module is sandwiched between the front surface and the back surface by using a high weather resistance ‧ high resin physical sealing material sheet containing a polymer binding functional agent, and the whole is sealed. This was coated with a high weather resistance ‧ high resin physical sealing material sheet. A glass plate is placed thereon, and the whole is subjected to a reduced pressure using an electrothermal heating laminator and vacuumed for 3 minutes, and then the hot plate is heated to 120 ° C to 140 ° C to soften the resin layer, and after pressing, the whole is Integration, then, the hot plate is heated to 150 ° C ~ 160 ° C, maintained for 10 minutes ~ 40 minutes, so that the formation of cross-linking, and then the whole is sealed to prepare the solar power module.

[Examples]

Next, the present invention will be described in more detail with reference to specific production examples and examples. Also, "g" and "%" in the text are based on quality unless otherwise stated.

<Synthesis Example 1> (Synthesis of polymer combined with UV absorber-1)

In a reaction vessel equipped with a thermometer, a stirring device, a nitrogen insufflator, and a reflux cooler connected to a pressure reducing device, charged with ethylene methacrylate copolymer as a reactive group polymer (methyl methacrylate content 28%, melt flow (MFR) 450 g/10 min) 357.0 g (0.997 equivalent), and 2-[4-(2-hydroxyl) as a reactive ultraviolet absorber -3-(2'-ethylhexyl)oxy)-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-tri (Molecular weight: 584) 160.9 g (0.276 mol), which was heated while being blown with nitrogen to be melted. 0.89 g of a catalyst tin octylate and 1.79 g of 2,6-di-t-butyl-4-methylphenol (BHT) were added, and the temperature was raised to 200 °C. The reaction was carried out for 6 hours while dropping 50 g of xylene, and 0.89 g of tin octylate was further added thereto, and the reaction was allowed to proceed for 7 hours. The methanol fraction formed in the reaction was excluded from the system by a cooler. The progress of the reaction was confirmed by infrared absorption spectroscopy. After completion of the reaction, the pressure was reduced to distill off the xylene, and after cooling, it was poured into isopropyl alcohol to precipitate a reaction product, followed by filtration. The mixture was washed with isopropyl alcohol and dried to obtain "polymer-bound UV absorber-1". The resultant was confirmed by infrared absorption spectroscopy and NMR. The content of the ultraviolet absorber residue was 30.2%.

<Synthesis Example 2> (Synthesis of Polymer-bound UV Absorber-2)

In the same reaction apparatus as in Synthesis Example 1, ethylene glycol, vinyl alcohol, vinyl acetate copolymer (mass ratio: 82.1:14.7:3.1, hydroxyl equivalent: 299.4), 375.4 g (1.254 equivalent), and xylene 200 g were charged. And 3-[3-(2H-benzotriazol-2-yl)-4-hydroxy-5-tert-butyl-phenyl]propanoic acid ethyl ester (molecular weight: 367.4) 182.6 g (0.497 mol) And heat to dissolve. 0.38 g of catalyst monobutyltin oxide and BHT (0.76 g) were added, and a heating reaction was carried out as in Synthesis Example 1, to obtain "polymer-bound UV absorber-2". The resultant was confirmed by infrared absorption spectroscopy and NMR. The content of the ultraviolet absorber residue was 30.1%.

<Synthesis Example 3> (Synthesis of Polymer-bound UV Absorber-3)

In addition to the use of ethylene ‧ methyl methacrylate copolymer 378.5g (0.9735 equivalents), and 2-[3-hydroxy-4-(2H-benzotriazol-2-yl)-phenyl-oxy]- In the same manner as in Synthesis Example 1, except that ethanol (molecular weight: 270.3), 165.2 g (0.611 mol), and 0.87 g of tin octylate as a catalyst and BHT (1.74 g) were used, "polymer-bound ultraviolet absorber-3 was obtained." "." The resultant was confirmed by infrared absorption spectroscopy and NMR. The content of the ultraviolet absorber residue was 30.3%.

<Synthesis Example 4> (Synthesis of Polymer-Bound Light Stabilizer-1)

In addition to using ethylene ‧ methyl methacrylate copolymer 374.4g (1.046 equivalents), and 4-hydroxy-1,2,2,6,6-pentamethyl-piperidine (molecular weight: 171.3) 132.0g (0.771 In the same manner as in Synthesis Example 1, except that 0.75 g of tetrabutyl titanate and BHT (1.87 g) as a catalyst were used, "polymer-bound light stabilizer-1" was obtained. The resultant was confirmed by infrared absorption spectroscopy and NMR.

<Synthesis Example 5> (Synthesis of Polymer-bound Antioxidant-1)

In addition to the use of ethylene ‧ vinyl alcohol ‧ vinyl acetate copolymer 308.0g (1.029 equivalents), and 3-(3',5'-di-t-butyl-4'-hydroxyphenyl) propionic acid ethyl ester (average Molecular weight: 306.4) 234.8 g (0.766 mol), and 0.59 g of monobutyltin oxide and BHT (1.17 g) as a catalyst were obtained in the same manner as in Synthesis Example 2 to obtain "polymer-bound antioxidant-1". "." The resultant was confirmed by infrared absorption spectroscopy and NMR.

<Synthesis Example 6> (Synthesis of Polymer-bound UV Absorber-4)

The polyvinyl butyral resin system was synthesized in the same manner as in Synthesis Example 2 except that the ethylene vinyl alcohol/vinyl acetate copolymer was used instead of the polyvinyl butyral resin (vinyl alcohol content: 20% by mass). The polymer incorporates UV absorber-4".

<Synthesis Example 7> (Synthesis of Polymer-bound UV Absorber-5)

In addition to the use of 2-[4-[(2-hydroxy-3-(2'-ethylhexyl)propyl)oxy]-2-hydroxyphenyl]-4,6-bis (2,4- Dimethylphenyl)-1,3,5-three In the reaction of succinic anhydride, 2-[4-[(2-(carboxyethylcarbonyloxy)-3-(2'-ethylhexyl)propyl)oxy)-2-hydroxybenzene is obtained. 4,6-bis(2,4-dimethylphenyl)-1,3,5-three In the same manner as in Synthesis Example 6, a polyvinyl butyral resin-based "polymer-bonded ultraviolet absorber-5" was synthesized.

<Synthesis Example 8> (Synthesis of Polymer-Bound Light Stabilizer-2)

In addition to the use of 4-hydroxy-1,2,2,6,6-pentamethyl-piperidine, 1,2,2,6,6-pentamethyl-periole obtained by reacting succinic anhydride A polyvinyl butyral resin-based "polymer-bound light stabilizer-2" was synthesized in the same manner as in Synthesis Example 6, except for the pyridine-4-oxycarbonylethyl carboxylic acid.

<Synthesis Example 9> (Synthesis of Polymer-bound Antioxidant-2)

In the same manner as in Synthesis Example 6, except that 3-(3',5'-di-t-butyl-4'-hydroxyphenyl)propionate was used instead, the polyvinyl butyral resin system was synthesized. The polymer binds to antioxidant-2".

<Production Example 1> (Production Example of Masterbatch Containing Polymer-Bound Ultraviolet Absorber)

In the case of 33.77 parts of ethylene ‧ vinyl acetate copolymer resin (vinyl acetate content: 28%, MFR: 15 g/10 minutes) which can be used as a sealing resin for a solar power generation module, it will be obtained according to Synthesis Example 1. The polymer is combined with UV absorber-1 (66.23 parts), and is kneaded by a rolling mill (roll surface temperature: 120 ° C), and then drawn into a sheet by a sheet rolling machine, and cut to obtain a polymerization of about 20 cm × 20 cm × 5 mm. A masterbatch that combines with a UV absorber. The masterbatch is based on three The ultraviolet absorber conversion meter contains 20% by mass. Hereinafter, "polymer-bonded ultraviolet absorber masterbatch-1" is referred to.

<Production Example 2> (Production Example of Masterbatch Containing Polymer-Bounding Functional Agent)

As in Production Example 1, the polymer binding functional agents obtained in Synthesis Examples 2 to 5 were prepared to contain a masterbatch of 20% by mass of the functional agent component, respectively. Polymer-bound UV absorber-2: 66.45 parts, polymer combined with UV absorber-3: 66.01 parts, polymer-bound light stabilizer-1: 79.68 parts, polymer-bound antioxidant-1: 52.08 parts, respectively The total mass was 100 parts, and each of them was blended into an ethylene-vinyl acetate copolymer resin, and kneaded by a rolling mill, and a masterer was formed by cutting using a rolling mill. They are called "polymer-bonded UV absorber masterbatch-2", "polymer-bonded UV absorber masterbatch-3", "polymer-bound light stabilizer masterbatch-1", and "polymer-bound antioxidant masterbatch". -1".

<Production Example 3> (Production Example of Masterbatch Containing Polymer-Bound Functional Agent)

A masterbatch of a polymer-binding functional agent which is compounded by a UV absorber, a photostabilizer, and an antioxidant as a functional ingredient. In the 32.51 parts of ethylene ‧ ethyl acrylate copolymer resin (ethyl acrylate content: 20% by mass) used as a sealing material resin, formulated into a polymer-bound ultraviolet absorber -1:16.56 parts, polymer-bound ultraviolet absorber -2: 16.61 parts, polymer-bound light stabilizer-1: 23.90 parts, and polymer-bound antioxidant - 1:10.42 parts, which were kneaded and cut to obtain a master batch. The total content of the functional ingredients of the system is 20% by mass, and the functional ingredient is hydroxyphenyl three. UV absorber: benzotriazole UV absorber: hindered amine light stabilizer: hindered phenolic antioxidant is 25:25:30:20 composite. Hereinafter, this is referred to as "polymer-binding functional agent composite master batch-1".

<Production Example 4> (Production Example of Polyvinyl Butyral Resin Masterbatch)

In place of the ethylene-vinyl acetate copolymer resin used in Production Example 1, a polyvinyl butyral resin used as a sealing material resin was used instead, and the polymer obtained in accordance with Synthesis Example 6 was bonded to the ultraviolet absorber-4, respectively. The polymer obtained in Synthesis Example 7 was combined with UV absorber-5, the polymer-bound light stabilizer-2 obtained in Synthesis Example 8, and the polymer-bound antioxidant-2 obtained in Synthesis Example 9 were kneaded into a thin sheet. A polyethylene butyral resin masterbatch of the respective polymer binding functional agents was obtained. It is preferably used in a polyvinyl butyral resin-based sealing material.

<Production Example 5> (Production Example of Additive Masterbatch)

40 parts of ethylene ‧ vinyl acetate copolymer resin used in Production Example 1 In the above, 50 parts of a titanium oxide white pigment and 10 parts of triallyl cyanurate were blended, and kneaded by a twin-screw extruder to obtain a master batch. Hereinafter, it will be referred to as "additive masterbatch".

Next, using the masterbatch obtained as described above, the properties of the sealing resin in the actual blending of the polymer-binding functional agent were investigated.

In 75.0 parts of ethylene ‧ vinyl acetate copolymer resin, blended with polymer-bonded UV absorber masterbatch -1:7.5 parts, polymer-bound UV absorber masterbatch -3:5.0 parts, polymer-bound light stabilizer masterbatch -1: 7.5 parts, and polymer-bound antioxidant masterbatch-1: 5.0 parts, kneaded by a rolling mill, and formed by thermocompression bonding to obtain a sheet having a thickness of about 1 mm. In the heating and kneading, the polymer-binding functional agent certainly does not appear to be sublimated, and does not cause pollution to the processing machine.

The test piece prepared from the obtained sheet exhibited sufficiently excellent results in the physical property test. Further, the obtained sheet was subjected to superheating using a Geer oven at 60 ° C, and the fogging of the surface was investigated for the white mist phenomenon on the surface of the sheet by the added polymer binding functional agent. The flakes of the polymer binding functional agent are of course completely free of white fog on the surface.

Similarly, the use of a polymer-bound UV absorber-2,-4, a polymer-bound light stabilizer-2, and a polymer-bound antioxidant-2 masterbatch also exhibited the same superior properties.

Functions such as known low molecular weight ultraviolet absorbers used for comparison Agent, the white mist of the functional agent appears on the surface.

Further, the thermal stability is compared with a known low molecular weight ultraviolet absorber, light stabilizer, and antioxidant. Although the polymer binding functional agent has been slightly found to be considered to be reduced in weight due to the polymer component, almost no reduction is found. In contrast, known ultraviolet absorbers, light stabilizers, and antioxidants are generally at 190 ° C. At 200 ° C, there will be a large weight loss due to rapid sublimation, which proves that there are restrictions on the conditions of use.

Further, the master batch using the polymer-binding functional agent produced in accordance with the other synthesis examples and production examples described above exhibited the same excellent performance.

<Example 1>

For the solar power generation module, an ethylene ‧ vinyl acetate copolymer resin-based sealing material to which a polymer-bonded composite functional agent is added is prepared in accordance with the following.

In the 49.5 parts of ethylene ‧ vinyl acetate copolymer resin (vinyl acetate content: 28%, MFR: 15 g/10 minutes) used as the sealing material resin of the solar power generation module, it was blended into the manufacturing example 1 Obtaining polymer-bound ultraviolet absorber masterbatch-1: 7.5 parts, polymer-bonded ultraviolet absorber masterbatch-3:5.0 parts obtained according to Production Example 2, polymer-bound light stabilizer masterbatch-1:7.5 parts, polymerization Additive Antioxidant Masterbatch-1: 5.0 parts, additive masterbatch containing white pigment and polyfunctional monomer obtained according to Production Example 5: 20.0 parts, used as a peroxide, a third butyl peroxide Propyl carbonate: 2.0 parts, and vinyl used as a decane coupling agent Trimethoxy decane: 0.5 part, after thorough mixing, kneading at 100 ° C by an extruder, and extrusion molding into a sheet having a thickness of 1 mm.

According to the conventional method, the tantalum battery module was sandwiched between the surface and the back surface by using the ethylene ‧ vinyl acetate copolymer resin-based sealing material sheet obtained as described above, and the whole was sealed. This was coated with a backing plate made of a polyethylene terephthalate film (high weather resistant high physical PET film) having improved weather resistance and resin properties by a polyester-based polymer-binding functional agent added thereto. A glass plate was placed thereon, and the whole was subjected to a reduced pressure using an electrothermal heating laminator, and vacuum was applied for 3 minutes, and then the hot plate was heated to 135 ° C to soften the resin layer, and the whole was integrated by press bonding. Next, the hot plate was heated to 150 ° C for 15 minutes to form a cross-linking bond, and the whole was sealed to prepare a solar power generation module.

<Example 2>

For the solar power generation module, an ethylene-ethyl acrylate copolymer resin-based sealing material to which a polymer-bonded composite functional agent is added is prepared as follows. In 47.5 parts of ethylene ‧ ethyl acrylate copolymer resin (ethyl acrylate content: 20% by mass) of the sealing material resin, the polymer-binding functional composite masterbatch obtained in the production example 3 was prepared: -10.0 parts An additive master batch containing a white pigment and a polyfunctional monomer obtained in Production Example 5: 20.0 parts, a third butyl isopropyl carbonate peroxide as a peroxide: 2.0 parts, and as Vinyl trimethoxy decane for decane coupling agent: 0.5 parts, after thorough mixing, using biaxial extrusion The machine is mixed and then extruded into a sheet.

As in Example 1, the tantalum battery module was sealed by using the ethylene-acrylate copolymer resin-based sealing material sheet obtained as described above, and then coated with a high weather resistance high physical PET film, a glass plate was placed thereon, and electric heating was utilized. The heating laminator forms a vacuum, and is heated and pressed to form a cross-linking combination, and the whole is sealed to prepare a solar power generation module.

<Example 3>

A polyvinyl butyral resin-based sealing material to which a polymer-bonded composite functional agent was added to the solar power generation module was prepared in the same manner as in Example 1. In the polyvinyl butyral resin used as the sealing material resin, the polymer-bonded ultraviolet absorber-4, the polymer-bound ultraviolet absorber-5, and the polymer-bound light stabilizer which are obtained according to Production Example 4, respectively, are blended. 2. Each masterbatch of the polymer-bound antioxidant-2, an additive masterbatch containing a white pigment and a polyfunctional monomer obtained according to Production Example 6, and a third butyl isopropyl carbonate and ethylene peroxide After the trimethoxy decane is thoroughly mixed, it is kneaded by an extruder and then extruded into a sheet.

As in the first embodiment, the tantalum battery module was sealed by using the polyvinyl butyral resin-based sealing material sheet obtained as described above, and then coated with a high weather-resistant high physical PET film, a glass plate was placed thereon, and heated by electric heating. The laminator forms a vacuum, which is heated and pressed to form a crosslink. In combination, the solar photovoltaic module is modulated by sealing the whole.

The solar power generation module of the present invention is capable of sufficiently adding a necessary amount to the resin member by the improved polymer-bonding composite functional agent, and does not cause loss due to sublimation during heating processing, and does not cause Environmental pollution will not be dissolved by rain, environmental water or oil and solvent, and it can be effectively maintained over a long period of time.

Claims (15)

A masterbatch characterized in that the following components are mixed, kneaded and formed into a flake shape or a granular shape: a resin physical property improver, which is a resin material used in a solar power generation module. The resin member having the structure is improved in the outdoor exposed physical properties, and the polymer-binding functional agent is selected from the group consisting of an ultraviolet absorber, a hindered amine light stabilizer, and a hindered phenol antioxidant. One or more kinds of functional agents are combined with a polymer; and the same resin as the above resin material or a synthetic resin and/or a resin wax compatible with the above resin material; and the combination of the above polymer and the above functional agent Forming by reacting a reactive group introduced into the residue of the functional agent with the polymer; the content of the functional agent residue in the polymer binding functional agent is 5 to 95% by mass; the polymer binding function The agent is contained in an amount of 2 to 30% by mass based on the content of the functional agent; the resin member is a sealing material resin, and the sealing material resin is ethylene ‧ acetate B An ester copolymer; the above polymer is a vinyl ‧ methyl methacrylate copolymer; the above functional agent is 2-[4-[(2-hydroxy-3-(2'-ethylhexyl)oxy)-2-hydroxyl Phenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-three . A masterbatch characterized in that the following components are mixed, kneaded and formed into a flake shape or a granular shape: a resin physical property improver, which is a resin material used in a solar power generation module. The resin member having the structure is improved in the outdoor exposed physical properties, and the polymer-binding functional agent is selected from the group consisting of an ultraviolet absorber, a hindered amine light stabilizer, and a hindered phenol antioxidant. One or more kinds of functional agents are combined with a polymer; and the same resin as the above resin material or a synthetic resin and/or a resin wax compatible with the above resin material; and the combination of the above polymer and the above functional agent Forming by reacting a reactive group introduced into the residue of the functional agent with the polymer; the content of the functional agent residue in the polymer binding functional agent is 5 to 95% by mass; the polymer binding function The agent is contained in an amount of 2 to 30% by mass based on the content of the functional agent; the resin member is a sealing material resin, and the sealing material resin is ethylene ‧ acetate B Ester copolymer; ethylene-based polymer described above ‧ ‧ vinyl alcohol-vinyl acetate copolymer; and the function-based agent from 3- [3- (2H- benzotriazol-2-yl) -4-hydroxy-5- section One selected from the group consisting of tributyl-phenyl]propionic acid ethyl ester and 3-(3',5'-di-t-butyl-4'-hydroxyphenyl)propionic acid ethyl ester. A masterbatch characterized in that the following components are mixed, kneaded and formed into a flake shape or a granular shape: a resin physical property improver, which is a resin material used in a solar power generation module. The resin member having the structure is improved in the outdoor exposed physical properties, and the polymer-binding functional agent is selected from the group consisting of an ultraviolet absorber, a hindered amine light stabilizer, and a hindered phenol antioxidant. One or more kinds of functional agents are combined with a polymer; and the same resin as the above resin material or a synthetic resin and/or a resin wax compatible with the above resin material; and the combination of the above polymer and the above functional agent Forming by reacting a reactive group introduced into the residue of the functional agent with the polymer; the content of the functional agent residue in the polymer binding functional agent is 5 to 95% by mass; the polymer binding function The agent is contained in an amount of 2 to 30% by mass based on the content of the functional agent; the resin member is a sealing material resin, and the sealing material resin is ethylene ‧ acetate B Ester copolymer; ethylene-based polymer described above ‧ methyl methacrylate copolymer; The above functional agent is from 2-[3-hydroxy-4-(2H-benzotriazol-2-yl)-phenyl-oxy]-ethanol, 4-hydroxy-1,2,2,6,6- One selected from the group consisting of pentamethyl-piperidine. A masterbatch characterized in that the following components are mixed, kneaded and formed into a flake shape or a granular shape: a resin physical property improver, which is a resin material used in a solar power generation module. The resin member having the structure is improved in the outdoor exposed physical properties, and the polymer-binding functional agent is selected from the group consisting of an ultraviolet absorber, a hindered amine light stabilizer, and a hindered phenol antioxidant. One or more kinds of functional agents are combined with a polymer; and the same resin as the above resin material or a synthetic resin and/or a resin wax compatible with the above resin material; and the combination of the above polymer and the above functional agent Forming by reacting a reactive group introduced into the residue of the functional agent with the polymer; the content of the functional agent residue in the polymer binding functional agent is 5 to 95% by mass; the polymer binding function The agent is contained in an amount of 2 to 30% by mass based on the content of the functional agent; the resin member is a sealing material resin, and the sealing material resin is ethylene ‧ acetate B Ester copolymer; the above polymer is a mixture of ethylene ‧ methyl methacrylate copolymer and ethylene ‧ vinyl alcohol ‧ vinyl acetate copolymer; the above functional agent is 2-[4-[(2-hydroxy-3-(2) '-Ethylhexyl)oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-three , 3-[3-(2H-benzotriazol-2-yl)-4-hydroxy-5-t-butyl-phenyl]propanoic acid ethyl ester, 4-hydroxy-1,2,2,6, Mixture of 6-pentamethyl-piperidine with ethyl 3-(3',5'-di-t-butyl-4'-hydroxyphenyl)propanoate. A masterbatch characterized in that the following components are mixed, kneaded and formed into a flake shape or a granular shape: a resin physical property improver, which is a resin material used in a solar power generation module. The resin member having the structure is improved in the outdoor exposed physical properties, and the polymer-binding functional agent is selected from the group consisting of an ultraviolet absorber, a hindered amine light stabilizer, and a hindered phenol antioxidant. One or more kinds of functional agents are combined with a polymer; and the same resin as the above resin material or a synthetic resin and/or a resin wax compatible with the above resin material; and the combination of the above polymer and the above functional agent Forming by reacting a reactive group introduced into the residue of the functional agent with the polymer; the content of the functional agent residue in the polymer binding functional agent is 5 to 95% by mass; the polymer binding function The agent is contained in an amount of 2 to 30% by mass based on the content of the functional agent; the resin member is a sealing material resin, and the sealing material resin is a polyvinyl butyral tree. The above polymer is a polyvinyl butyral resin; the above functional agent is from 3-[3-(2H-benzotriazol-2-yl)-4-hydroxy-5-t-butyl-phenyl]propyl Ethyl acetate, 2-[4-(2-(carboxyethylcarbonyloxy)-3-(2'-ethylhexyl)oxy)-2-hydroxyphenyl]-4,6-bis (2, 4-dimethylphenyl)-1,3,5-three 1,2,2,6,6-pentamethyl-piperidine-4-oxocarbonylethylcarboxylic acid and 3-(3',5'-di-t-butyl-4'-hydroxyphenyl) One selected from the group consisting of ethyl propionate. A liquid composition obtained by dispersing or dissolving a resin physical property improving agent together with an optional coating film forming material in a liquid medium; the resin physical property improving agent is used in a solar power generation module The resin member made of a resin material is improved in the outdoor exposed physical property, and contains a polymer binding functional agent, which is a UV-absorbing agent, a hindered amine-based light stabilizer, and a hindered phenol-based agent. One or more functional agents selected from the oxidizing agent are combined with a polymer; the polymer binding functional agent is contained in an amount of 2 to 30% by mass based on the content of the functional agent, and is used as a coating material or a coating agent; The resin member is a sealing material resin, the sealing material resin is an ethylene ‧ vinyl acetate copolymer; the polymer is a vinyl ‧ methyl methacrylate copolymer; and the above functional agent is 2-[4-[(2-hydroxy-3) -(2'-ethylhexyl)oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-tri . A liquid composition obtained by dispersing or dissolving a resin physical property improving agent together with an optional coating film forming material in a liquid medium; the resin physical property improving agent is used in a solar power generation module The resin member made of a resin material is improved in the outdoor exposed physical property, and contains a polymer binding functional agent, which is a UV-absorbing agent, a hindered amine-based light stabilizer, and a hindered phenol-based agent. One or more functional agents selected from the oxidizing agent are combined with a polymer; the polymer binding functional agent is contained in an amount of 2 to 30% by mass based on the content of the functional agent, and is used as a coating material or a coating agent; The resin member is a sealing material resin, the sealing material resin is an ethylene ‧ vinyl acetate copolymer; the polymer is ethylene ‧ vinyl alcohol ‧ vinyl acetate copolymer; the functional agent is from 3-[3-(2H-benzo) Ethyl triazol-2-yl)-4-hydroxy-5-t-butyl-phenyl]propanoate and 3-(3',5'-di-t-butyl-4'-hydroxyphenyl)propane One selected from the group consisting of ethyl acetate. A liquid composition obtained by dispersing or dissolving a resin physical property improving agent together with an optional coating film forming material in a liquid medium; the resin physical property improving agent is used in a solar power generation module Improvement of the outdoor exposed physical properties of the resin member composed of the resin material The polymer-binding functional agent is a polymer-binding agent that binds one or more functional agents selected from the group consisting of an ultraviolet absorber, a hindered amine light stabilizer, and a hindered phenol antioxidant to the polymer. The polymer binding functional agent is contained in an amount of 2 to 30% by mass based on the content of the functional agent, and is used as a coating material or a coating agent; the resin member is a sealing material resin, and the sealing material resin is ethylene ‧ acetic acid a vinyl ester copolymer; the above polymer is a vinyl ‧ methyl methacrylate copolymer; the above functional agent is from 2-[3-hydroxy-4-(2H-benzotriazol-2-yl)-phenyl-oxygen One selected from the group consisting of: ethanol, 4-hydroxy-1,2,2,6,6-pentamethyl-piperidine. A liquid composition obtained by dispersing or dissolving a resin physical property improving agent together with an optional coating film forming material in a liquid medium; the resin physical property improving agent is used in a solar power generation module The resin member made of a resin material is improved in the outdoor exposed physical property, and contains a polymer binding functional agent, which is a UV-absorbing agent, a hindered amine-based light stabilizer, and a hindered phenol-based agent. One or more functional agents selected from the oxidizing agent are combined with a polymer; the polymer binding functional agent is contained in an amount of 2 to 30% by mass based on the content of the functional agent, and is used as a coating material or a coating agent; The resin member is a sealing material resin, the sealing material resin is an ethylene ‧ vinyl acetate copolymer; the polymer is a mixture of ethylene ‧ methyl methacrylate copolymer and ethylene ‧ vinyl alcohol ‧ vinyl acetate copolymer; the above functional agent 2-[4-[(2-Hydroxy-3-(2'-ethylhexyl)oxy)-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)- 1,3,5-three , 3-[3-(2H-benzotriazol-2-yl)-4-hydroxy-5-t-butyl-phenyl]propanoic acid ethyl ester, 4-hydroxy-1,2,2,6, Mixture of 6-pentamethyl-piperidine with ethyl 3-(3',5'-di-t-butyl-4'-hydroxyphenyl)propanoate. A liquid composition obtained by dispersing or dissolving a resin physical property improving agent together with an optional coating film forming material in a liquid medium; the resin physical property improving agent is used in a solar power generation module The resin member made of a resin material is improved in the outdoor exposed physical property, and contains a polymer binding functional agent, which is a UV-absorbing agent, a hindered amine-based light stabilizer, and a hindered phenol-based agent. One or more functional agents selected from the oxidizing agent are combined with a polymer; the polymer binding functional agent is contained in an amount of 2 to 30% by mass based on the content of the functional agent, and is used as a coating material or a coating agent; The resin member is a sealing material resin, the sealing material resin is a polyvinyl butyral resin; the polymer is a polyvinyl butyral resin; and the functional agent is from 3-[3-(2H-benzotriazol-2-yl). Ethyl 4-hydroxy-5-tert-butyl-phenyl]propanoate, 2-[4-(2-(carboxyethylcarbonyloxy)-3-(2'-ethylhexyl)oxy) 2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-three 1,2,2,6,6-pentamethyl-piperidine-4-oxocarbonylethylcarboxylic acid and 3-(3',5'-di-t-butyl-4'-hydroxyphenyl) One selected from the group consisting of ethyl propionate. A method for improving the outdoor exposed physical property of a resin member used in a solar power generation module, comprising the method of adding a masterbatch according to any one of claims 1 to 5 to a resin used in a solar power generation module In the component. The method for improving the outdoor exposed physical properties of the resin member according to the eleventh aspect of the invention, wherein the masterbatch is added in an amount of 0.1 to 20 parts by mass per 100 parts by mass of the resin member. A method for improving the outdoor exposed physical property of a resin member used in a solar power generation module, comprising applying the liquid composition according to any one of claims 6 to 10 to a solar power generation module The surface of the resin member used. A resin member used in a solar power generation module, which is characterized in that it is obtained by an improved method for external exposure property of a resin member according to claim 11 or 12. A resin member used in a solar power generation module, which is characterized in that it is obtained by an improved method for external exposure property of a resin member according to claim 13 of the patent application.