CN113717658A - Anti-aging white packaging adhesive film and preparation process thereof - Google Patents
Anti-aging white packaging adhesive film and preparation process thereof Download PDFInfo
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- CN113717658A CN113717658A CN202110974010.5A CN202110974010A CN113717658A CN 113717658 A CN113717658 A CN 113717658A CN 202110974010 A CN202110974010 A CN 202110974010A CN 113717658 A CN113717658 A CN 113717658A
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- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C09J123/0853—Vinylacetate
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
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- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
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- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
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- C08J2461/04—Condensation polymers of aldehydes or ketones with phenols only
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Abstract
The invention discloses an anti-aging white packaging adhesive film and a preparation process thereof. The high-reflection master batch consists of a special bearing matrix, a high-reflection material and a compatible auxiliary agent. Greatly improves the adhesive property and various ageing resistances of the adhesive film, and is more outstanding in high temperature and high humidity resistance.
Description
Technical Field
The invention relates to a packaging adhesive film, in particular to an anti-aging white packaging adhesive film and a preparation process thereof.
Background
With the continuous development of the times, the global resource consumption is increasingly serious, and the natural resource reserves of the earth are increasingly reduced. As the most important component of development, energy has become one of the highest strategies in countries around the world. Solar energy is renewable energy, has great resource reserve, does not have strict regional requirements like hydropower, wind power and the like, and does not have great damage to the environment and other resources like nuclear energy and thermal power. Undoubtedly, light energy will become a mainstream of the development of energy sources.
The white packaging adhesive film is widely applied to the photovoltaic market as a synergistic packaging adhesive film. The white packaging adhesive film is continuously improved from the earliest low-melting white film and non-woven fabric white film to the current pre-crosslinking white film. The pre-crosslinked white film is used as a packaging adhesive film with wide applicability, and the whole white film market is rapidly seized by the capability of adapting to the single-glass and double-glass assembly. However, with the extensive popularization of pre-crosslinked white films, some disadvantages thereof are gradually revealed.
The use of the pre-crosslinking technology enables the whole adhesive film to present a 20-40% three-dimensional net structure, and the introduction of a large amount of inorganic additives causes the pre-crosslinked white film product to be inferior to the conventional transparent adhesive film in the aspects of high temperature and high humidity resistance, high and low temperature cycle resistance and the like, and the point is most obvious in cohesive force attenuation.
The shelf life of a photovoltaic module is 30 years, which is a great challenge for an encapsulant film. The market proportion of the packaging adhesive film is not negligible as the only gain packaging adhesive film in the market which is used in large batch. Therefore, how to promote the pre-crosslinked white packaging adhesive film will become an important development direction.
Due to the use of a pre-crosslinking technology and the introduction of a large amount of inorganic additives, the conventional pre-crosslinked white packaging adhesive film has poor high-temperature and high-humidity resistance, high-temperature and low-temperature cycle resistance and the like, and has the most obvious performance on the attenuation of the adhesive force.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a high-reflection master batch which is cut and formed, and then is subjected to high-energy particle beam bombardment, the bonding of a compatible auxiliary agent is opened, the surface of a high-reflection material is activated and is linked with a special bearing matrix, and the high-reflection material is linked on the special bearing matrix, so that the dispersion state and the bonding state of the high-reflection master batch on the special bearing matrix are stably enhanced, and the overall high-temperature high-humidity resistance, heat cycle resistance and other capabilities of a glue film are enhanced; meanwhile, the tackifier alkyl phenolic resin and the xylene formaldehyde resin partially react under the bombardment of high-energy particle beams to form a modified phenolic resin, so that the adhesive property and various anti-aging capabilities of the adhesive film are greatly improved.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an anti-aging white packaging adhesive film comprises the following components in parts by mass:
resin material matrix 100 parts
5-30 parts of high-reflection functional master batch
1-20 parts of anti-aging functional master batch
0.3 to 1.5 portions of initiator
0.6-1.5 parts of assistant crosslinking agent
0.2-2.0 parts of silane coupling agent
0.5-5.0 parts of a material toughening agent.
Preferably, the resin material matrix is one or two of EVA and POE; the material has a melt index of 3-40 g/min and a volume resistivity of 1.0 × 1015。
Preferably, the high-reflection functional master batch consists of a special bearing matrix, a high-reflection material and a compatible additive, and the high-reflection functional master batch comprises the following components in parts by mass: 100 parts of special bearing matrix, 20-200 parts of reflecting material and 0.1-20 parts of compatible auxiliary agent, and extruding and granulating by a double screw;
preferably, the special bearing matrix is a combination of two or more of EVA, POE, hydrogenated rosin resin and hydrogenated C5/C9 copolymerized petroleum resin; when EVA is selected, the VA content is required to be 25-33%.
The high-reflection material is a mixture of titanium dioxide and magnesium hydroxide in a proportion, and the mass ratio of the magnesium hydroxide is 2-40%;
the compatible auxiliary agent is a proportional combination of a silane coupling agent, a material toughening agent and a tackifier;
the double-screw extrusion granulation equipment comprises: the temperature is set to be 100-150 ℃, and the rotating speed is set to be 400-800 r/min.
Preferably, the silane coupling agent is one or more of vinyl trichlorosilane, n-butylaminopropyl trimethoxysilane, 3-allyloxypropyltrimethoxysilane, 1,1,1,3,5,5, 5-heptamethyltrisiloxane, dicyclopentyldimethylchlorosilane, triisopropenylmethacrylate silicone grease, vinyl trimethoxysilane, ethyl orthosilicate Si-40, 3-methacryloxypropyl tris (trimethylsiloxy) silane, 3- (2, 3-epoxypropoxy) propylmethyldiethoxysilane, epoxy modified polysiloxane and triethoxyvinylsilane;
the material toughening agent is one or more of propoxylated glycerol triacrylate, trimethylolpropane trimethacrylate, ditrimethylolpropane tetraacrylate, polyethylene glycol (200) dimethacrylate, polyether polyol-aliphatic polyurethane acrylate, aromatic urethane acrylate, epoxy methacrylate, di-trimethylolpropane tetraacrylate, fatty acid modified polyester hexaacrylate and low-viscosity dipentaerythritol pentaacrylate;
the tackifier is a combination of alkyl phenolic resin and xylene formaldehyde resin, wherein the mass percentage of the xylene formaldehyde resin is 10-50%.
Preferably, the anti-aging functional master batch consists of 100 parts of EVA or POE carrier, 0.1-10 parts of light stabilizer and 1-20 parts of hydrolysis-resistant reinforcing agent, and is formed by twin-screw extrusion granulation.
Preferably, the light stabilizer is one or more of 3, 5-di-tert-butyl-4-hydroxy-benzoic acid hexadecyl ester, N, -bis (2,2,6, 6-tetramethyl-4-piperidyl) -1, 6-hexanediamine, sebacic acid bis-2, 2,6, 6-tetramethylpiperidyl alcohol ester, dihydroxy-tetra-N-octyl hydroxybenzophenone and bis (2,2,6, 6-tetramethylpiperidyl) sebacate;
the hydrolysis-resistant reinforcing agent is one or more of nano hydrotalcite, nano calcium stearate, light magnesium oxide and nano zinc oxide;
the double-screw extrusion granulation equipment is set to have the temperature of 200-500 ℃ and the rotating speed of 200-600 r/min.
Preferably, the initiator is one or more of dimyristyl peroxydicarbonate, dihexadecyl peroxydicarbonate, tert-amyl 2-ethylhexyl peroxide, isopropyl tert-butyl peroxycarbonate, 1-bis (tert-butylperoxy) cyclohexane, tert-butyl 3,3, 5-trimethylhexanoate, tert-amyl peroxybenzoate, tert-amyl peroxy-2-ethylhexanoate and ethyl 3, 3-di (tert-butylperoxy) butyrate.
Preferably, the auxiliary crosslinking agent is one or a combination of more of triallyl isocyanurate, triallyl cyanurate, ethylene glycol dimethacrylate, 1,3, 5-tri-2-propenyl-1, 3, 5-triazine-2, 4,6(1H,3H,5H) -trione, diethylene glycol dimethacrylate, tri-allylisocyanate, triallyl isocyanate, triallyl cyanurate and N, N' -m-phenylene bismaleimide.
A preparation process of an anti-aging white packaging adhesive film comprises the steps of shearing and extruding a high-reflection master batch component in a double-screw granulator, mixing the high-reflection master batch component with a resin material matrix, an anti-aging functional master batch, an initiator, an auxiliary crosslinking agent, a silane coupling agent and a material toughening agent after bombardment and activation by high-energy electron beams, extruding, casting and forming a film, and pre-crosslinking to form a product;
the energy of the high-energy electron beam is 5-50 Kgy.
Compared with the prior art, the invention has the beneficial effects that:
1. under the bombardment of high-energy particle beams, the compatible auxiliary agent is bonded and opened, the surface of the high-reflection material is activated and is linked with the special bearing matrix, and the high-reflection material is linked on the special bearing matrix, so that the dispersion state and the bonding state of the high-reflection material on the special bearing matrix are stably enhanced, the influence of the high-reflection material on the anti-bonding force attenuation performance of the adhesive film is reduced, and the overall high-temperature high-humidity resistance, heat cycle resistance and other capabilities of the adhesive film are enhanced.
2. The compounding of the special bearing matrix in the high-reflection master batch can increase the bonding force and the ageing resistance of the matrix and simultaneously can reduce the influence on the special bearing matrix in the bombardment process of the high-energy electron beam.
3. The magnesium hydroxide in the high-reflection material can play a role in cation adsorption, and can inhibit the appearance of acidic substances in the long-term use process to a certain extent. The PID resistance and the long-term aging resistance of the component are enhanced.
4. The use of the anti-hydrolysis reinforcing agent can effectively slow down the invasion of water molecules in the adhesive film system, hinder the long-term aging and the hydrolysis of each component in the adhesive film system in the use process, and reduce the anti-adhesion decay rate of the adhesive film.
5. The tackifier alkyl phenolic resin and the xylene formaldehyde resin partially react under the bombardment of high-energy particle beams to form a modified phenolic resin, so that the adhesive property and various ageing resistances of an adhesive film are greatly improved, and the high-temperature and high-humidity resistance is more outstanding.
The invention relates to an anti-aging white packaging adhesive film and a preparation process thereof, which enhance the overall high temperature and high humidity resistance, thermal cycle resistance and other capabilities of the adhesive film, reduce various aging attenuations of a component, and reduce the delaminating and failure risks of the component in the long-term use process.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1: an anti-aging white packaging adhesive film for photovoltaic comprises the following components in parts by mass:
100 parts of ethylene-vinyl acetate copolymer resin, 12 parts of high-reflection functional master batch, 1 part of anti-aging functional master batch, 0.6 part of peroxydimyristyl dicarbonate, 0.7 part of triallyl isocyanurate, 0.5 part of vinyl trichlorosilane and 0.8 part of propoxylated glycerol triacrylate.
The master batch with the high reflection function comprises, by mass, 80 parts of ethylene-vinyl acetate copolymer resin, 20 parts of hydrogenated rosin resin, 140 parts of nano titanium dioxide, 10 parts of nano magnesium hydroxide, 3 parts of vinyl trichlorosilane, 0.5 part of propoxylated glycerol triacrylate, 2 parts of alkyl phenolic resin and 1 part of xylene formaldehyde resin composition. The high-reflection master batch is prepared by the following method: the preparation method comprises the steps of uniformly mixing various resins and functional materials, putting the mixture into a double-screw extrusion granulator, heating at 120 ℃, melting, extruding, and cutting to form granules, wherein the rotating speed of a screw in the double-screw extrusion granulator is 600 r/min. The bombardment energy of the high-energy electron beam is 25 Kgy.
The anti-aging functional master batch comprises, by mass, 100 parts of ethylene-vinyl acetate copolymer resin, 2 parts of 3, 5-di-tert-butyl-4-hydroxy-benzoic acid hexadecyl ester, 5 parts of nano hydrotalcite and 5 parts of nano calcium stearate. The reinforced master batch is prepared by the following method: the preparation method comprises the steps of uniformly mixing various resins and functional materials, putting the mixture into a double-screw extrusion granulator, heating at 250 ℃, melting, extruding, and cutting to form granules, wherein the rotating speed of a screw in the double-screw extrusion granulator is 300 r/min.
Example 2: an anti-aging white packaging adhesive film for photovoltaic comprises the following components in parts by mass:
100 parts of polyolefin elastomer, 10 parts of high-reflection functional master batch, 2 parts of anti-aging functional master batch, 0.5 part of dicetyl peroxydicarbonate, 0.8 part of triallyl cyanurate, 0.6 part of n-butylaminopropyl trimethoxy silane and 0.7 part of hydroxymethyl propane triacrylate.
70 parts of polyolefin elastomer, 30 parts of hydrogenated rosin resin, 150 parts of nano titanium dioxide, 15 parts of nano magnesium hydroxide, 4 parts of n-butylaminopropyl trimethoxy silane, 0.7 part of hydroxymethyl propane triacrylate, 2 parts of alkyl phenolic resin and 2 parts of xylene formaldehyde resin composition. The high-reflection master batch is prepared by the following method: the preparation method comprises the steps of uniformly mixing various resins and functional materials, putting the mixture into a double-screw extrusion granulator, heating at 110 ℃, melting, extruding, and cutting to form granules, wherein the rotating speed of a screw in the double-screw extrusion granulator is 500 r/min. The bombardment energy of the high-energy electron beam is 25 Kgy.
The anti-aging master batch comprises, by mass, 100 parts of a polyolefin elastomer, 3 parts of N, N, -bis (2,2,6, 6-tetramethyl-4-piperidyl) -1, 6-hexanediamine, 8 parts of nano hydrotalcite and 2 parts of nano calcium stearate. The reinforced master batch is prepared by the following method: the preparation method comprises the steps of uniformly mixing various resins and functional materials, putting the mixture into a double-screw extrusion granulator, heating at 230 ℃, melting, extruding, cutting and forming granules, wherein the rotating speed of a screw in the double-screw extrusion granulator is 250 r/min.
Example 3: an anti-aging white packaging adhesive film for photovoltaic comprises the following components in parts by mass:
50 parts of ethylene-vinyl acetate copolymer resin, 50 parts of polyolefin elastomer, 12 parts of high-reflection functional master batch, 5 parts of anti-aging functional master batch, 0.7 part of peroxide 2-ethylhexyl tert-amyl ester, 0.6 part of 1,3, 5-tri-2-propenyl-1, 3, 5-triazine-2, 4,6(1H,3H,5H) -trione, 0.7 part of 1,1,1,3,5,5, 5-heptamethyltrisiloxane and 0.8 part of ditrimethylolpropane tetraacrylate.
The master batch with the high reflection function comprises, by mass, 30 parts of ethylene-vinyl acetate copolymer resin, 30 parts of polyolefin elastomer, 20 parts of hydrogenated rosin resin, 20 parts of hydrogenated C5/C9 copolymerized petroleum resin, 130 parts of nano titanium dioxide, 20 parts of nano magnesium hydroxide, 7 parts of 1,1,1,3,5,5, 5-heptamethyltrisiloxane, 2 parts of ditrimethylolpropane tetraacrylate, 1 part of alkyl phenolic resin and 1 part of xylene formaldehyde resin. The high-reflection master batch is prepared by the following method: the preparation method comprises the steps of uniformly mixing various resins and functional materials, putting the mixture into a double-screw extrusion granulator, heating at 125 ℃, melting, extruding, cutting and forming granules, wherein the rotating speed of a screw in the double-screw extrusion granulator is 650 r/min. The bombardment energy of the high-energy electron beam is 30 Kgy.
The anti-aging master batch comprises, by mass, 50 parts of ethylene-vinyl acetate copolymer resin, 50 parts of polyolefin elastomer, 5 parts of bis-2, 2,6, 6-tetramethylpiperidinol sebacate, 10 parts of nano hydrotalcite and 5 parts of nano calcium stearate. The reinforced master batch is prepared by the following method: the preparation method comprises the steps of uniformly mixing various resins and functional materials, putting the mixture into a double-screw extrusion granulator, heating at 300 ℃, melting, extruding, and cutting to form granules, wherein the rotating speed of a screw in the double-screw extrusion granulator is 350 r/min.
Example 4: an anti-aging white packaging adhesive film for photovoltaic comprises the following components in parts by mass:
50 parts of ethylene-vinyl acetate copolymer resin, 50 parts of polyolefin elastomer, 20 parts of high-reflection functional master batch, 2 parts of anti-aging functional master batch, 0.7 part of tert-butyl peroxy 3,3, 5-trimethylhexanoate, 0.6 part of diethylene glycol dimethacrylate, Si-400.7 parts of ethyl orthosilicate and 0.8 part of polyether polyol-aliphatic polyurethane acrylate.
The master batch with the high reflection function comprises, by mass, 40 parts of ethylene-vinyl acetate copolymer resin, 40 parts of polyolefin elastomer, 20 parts of hydrogenated C5/C9 copolymerized petroleum resin, 100 parts of nano titanium dioxide, 30 parts of nano magnesium hydroxide, Si-405 parts of tetraethoxysilane, 5 parts of polyether polyol-aliphatic polyurethane acrylate, 4 parts of alkyl phenolic resin and 3 parts of xylene formaldehyde resin combination. The high-reflection master batch is prepared by the following method: the preparation method comprises the steps of uniformly mixing various resins and functional materials, putting the mixture into a double-screw extrusion granulator, heating at 125 ℃, melting, extruding, cutting and forming granules, wherein the rotating speed of a screw in the double-screw extrusion granulator is 650 r/min. The bombardment energy of the high-energy electron beam is 35 Kgy.
The anti-aging master batch comprises, by mass, 50 parts of ethylene-vinyl acetate copolymer resin, 50 parts of polyolefin elastomer, 6 parts of dihydroxy-tetra-n-octyl hydroxy benzophenone, 5 parts of nano hydrotalcite and 8 parts of nano calcium stearate. The reinforced master batch is prepared by the following method: the preparation method comprises the steps of uniformly mixing various resins and functional materials, putting the mixture into a double-screw extrusion granulator, heating to 400 ℃, melting, extruding, and cutting to form granules, wherein the rotating speed of a screw in the double-screw extrusion granulator is 450 r/min.
Example 5: an anti-aging white packaging adhesive film for photovoltaic comprises the following components in parts by mass:
100 parts of ethylene-vinyl acetate copolymer resin, 13 parts of high-reflection functional master batch, 5 parts of anti-aging functional master batch, 0.8 part of ethyl 3, 3-di (tert-butylperoxy) butyrate, 0.7 part of N, N' -m-phenylene bismaleimide, 0.5 part of triethoxyvinylsilane, and 1 part of low-viscosity dipentaerythritol pentaacrylate.
The master batch with the high reflection function comprises, by mass, 80 parts of ethylene-vinyl acetate copolymer resin, 20 parts of hydrogenated C5/C9 copolymerized petroleum resin, 150 parts of nano titanium dioxide, 10 parts of nano magnesium hydroxide, 3 parts of triethoxy vinyl silane, 3 parts of low-viscosity dipentaerythritol pentaacrylate, 2 parts of alkyl phenolic resin and 2 parts of xylene formaldehyde resin composition. The high-reflection master batch is prepared by the following method: the preparation method comprises the steps of uniformly mixing various resins and functional materials, putting the mixture into a double-screw extrusion granulator, heating at 125 ℃, melting, extruding, and cutting to form granules, wherein the rotating speed of a screw in the double-screw extrusion granulator is 550 r/min. The bombardment energy of the high-energy electron beam is 40 Kgy.
The anti-aging functional master batch comprises, by mass, 100 parts of ethylene-vinyl acetate copolymer resin, 6 parts of bis (2,2,6, 6-tetramethylpiperidyl) sebacate, 10 parts of nano hydrotalcite and 10 parts of nano calcium stearate. The reinforced master batch is prepared by the following method: the preparation method comprises the steps of uniformly mixing various resins and functional materials, putting the mixture into a double-screw extrusion granulator, heating at 450 ℃, melting, extruding, and cutting to form granules, wherein the rotating speed of a screw in the double-screw extrusion granulator is 500 r/min.
Example 6: an anti-aging white packaging adhesive film for photovoltaic comprises the following components in parts by mass:
100 parts of polyolefin elastomer, 13 parts of high-reflection functional master batch, 8 parts of anti-aging functional master batch, 0.7 part of tert-amyl peroxy-2-ethylhexanoate, 0.6 part of triallyl isocyanate, 0.7 part of 3-methacryloxypropyl tris (trimethylsiloxy) silane and 1 part of fatty acid modified polyester hexaacrylate.
The master batch with the high reflection function comprises, by mass, 80 parts of polyolefin elastomer, 20 parts of hydrogenated C5/C9 copolymerized petroleum resin, 110 parts of nano titanium dioxide, 40 parts of nano magnesium hydroxide, 3 parts of 3-methacryloxypropyl tris (trimethylsiloxy) silane, 3 parts of fatty acid modified polyester hexaacrylate, 2 parts of alkyl phenolic resin and 2 parts of xylene formaldehyde resin. The high-reflection master batch is prepared by the following method: the preparation method comprises the steps of uniformly mixing various resins and functional materials, putting the mixture into a double-screw extrusion granulator, heating at 125 ℃, melting, extruding, and cutting to form granules, wherein the rotating speed of a screw in the double-screw extrusion granulator is 550 r/min. The bombardment energy of the high-energy electron beam is 40 Kgy.
The anti-aging master batch comprises, by mass, 100 parts of a polyolefin elastomer, 6 parts of bis-2, 2,6, 6-tetramethylpiperidyl sebacate, 10 parts of nano hydrotalcite and 10 parts of nano calcium stearate. The reinforced master batch is prepared by the following method: the preparation method comprises the steps of uniformly mixing various resins and functional materials, putting the mixture into a double-screw extrusion granulator, heating at 450 ℃, melting, extruding, and cutting to form granules, wherein the rotating speed of a screw in the double-screw extrusion granulator is 500 r/min.
Comparative example 1: the white packaging adhesive film for the photovoltaic module uses conventional reflection master batches, does not use anti-aging function master batches, is the same as that of the white packaging adhesive film in the embodiment 1, and is not repeated herein.
Comparative example 2: a white type packaging adhesive film for a photovoltaic module uses conventional reflection master batches, and the rest is the same as that of embodiment 1, and is not repeated herein.
Comparative example 3: the utility model provides a white type encapsulation glued membrane for photovoltaic module, does not use ageing resistance function master batch, and the rest is the same with embodiment 1, and here is no longer repeated.
Comparative example 4: the packaging adhesive film of the comparative example is a pre-crosslinked white EVA packaging adhesive film of the first three on the market.
Test example:
the encapsulating adhesive films of examples 1 to 6 and comparative examples 1 to 4 were subjected to performance tests, and the test results are shown in table 1. Wherein: the reflectivity test adopts a UV-2600 ultraviolet spectrophotometer to test;
the volume resistivity is tested by adopting a ZC-90E volume resistivity tester;
the yellowing index is tested by using ColorQuestXE;
the power test selects 10 assemblies made of each product, each assembly uses the same type of battery piece, the assembly is a double-sided 72-piece assembly, and the packaging mode is double-sided single packaging. And removing the highest value and the lowest value from each group of test data.
TABLE 1 Performance test Table for packaging adhesive film
As can be seen from the comparative data in Table 1, the product prepared by the method can effectively improve the dispersion and linking state of the titanium dioxide in the adhesive film system, thereby improving the reflectivity and the anti-aging bonding attenuation capacity, simultaneously increasing the power generation efficiency of the photovoltaic module and reducing the power attenuation of the module in various aging processes.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the scope of the present invention claimed in the present invention.
Claims (10)
1. An anti-aging white packaging adhesive film is characterized by comprising the following components in parts by mass:
resin material matrix 100 parts
5-30 parts of high-reflection functional master batch
1-20 parts of anti-aging functional master batch
0.3 to 1.5 portions of initiator
0.6-1.5 parts of assistant crosslinking agent
0.2-2.0 parts of silane coupling agent
0.5-5.0 parts of a material toughening agent.
2. The anti-aging white packaging adhesive film as claimed in claim 1, which is characterized in that: the resin material matrix is one or two of EVA and POE; the material has a melt index of 3-40 g/min and a volume resistivity of 1.0 × 1015。
3. The anti-aging white packaging adhesive film as claimed in claim 1, which is characterized in that: the master batch with the high reflection function consists of a special bearing matrix, a high reflection material and a compatible auxiliary agent, and comprises the following components in parts by mass: 100 parts of special bearing matrix, 20-200 parts of reflecting material and 0.1-20 parts of compatible auxiliary agent, and extruding and granulating by a double screw.
4. The anti-aging white packaging adhesive film as claimed in claim 3, which is characterized in that:
the special bearing substrate is a combination of two or more of EVA, POE, hydrogenated rosin resin and hydrogenated C5/C9 copolymerized petroleum resin;
the high-reflection material is a mixture of titanium dioxide and magnesium hydroxide in a proportion, and the mass ratio of the magnesium hydroxide is 2-40%;
the compatible auxiliary agent is a proportional combination of a silane coupling agent, a material toughening agent and a tackifier;
the double-screw extrusion granulation equipment comprises: the temperature is set to be 100-150 ℃, and the rotating speed is set to be 400-800 r/min.
5. The anti-aging white packaging adhesive film as claimed in claim 4, which is characterized in that: the silane coupling agent is one or more of vinyl trichlorosilane, n-butylaminopropyl trimethoxysilane, 3-allyloxypropyltrimethoxysilane, 1,1,1,3,5,5, 5-heptamethyltrisiloxane, dicyclopentyldimethylchlorosilane, triisopropenylmethacrylate silicone grease, vinyl trimethoxysilane, ethyl orthosilicate Si-40, 3-methacryloxypropyl tri (trimethylsiloxy) silane, 3- (2, 3-epoxypropoxy) propyl methyldiethoxysilane, epoxy modified polysiloxane and triethoxyvinylsilane;
the material toughening agent is one or more of propoxylated glycerol triacrylate, trimethylolpropane trimethacrylate, ditrimethylolpropane tetraacrylate, polyethylene glycol (200) dimethacrylate, polyether polyol-aliphatic polyurethane acrylate, aromatic urethane acrylate, epoxy methacrylate, di-trimethylolpropane tetraacrylate, fatty acid modified polyester hexaacrylate and low-viscosity dipentaerythritol pentaacrylate;
the tackifier is a combination of alkyl phenolic resin and xylene formaldehyde resin, wherein the mass percentage of the xylene formaldehyde resin is 10-50%.
6. The anti-aging white packaging adhesive film as claimed in claim 1, which is characterized in that: the anti-aging master batch is composed of 100 parts of EVA (ethylene vinyl acetate) or POE (polyolefin elastomer) carrier, 0.1-10 parts of light stabilizer and 1-20 parts of hydrolysis-resistant reinforcing agent, and is formed by twin-screw extrusion granulation.
7. The anti-aging white packaging adhesive film as claimed in claim 1, which is characterized in that:
the light stabilizer is one or more of 3, 5-di-tert-butyl-4-hydroxy-benzoic acid hexadecyl ester, N, -bis (2,2,6, 6-tetramethyl-4-piperidyl) -1, 6-hexanediamine, sebacic acid bis-2, 2,6, 6-tetramethylpiperidyl alcohol ester, dihydroxy-tetra-N-octyl hydroxybenzophenone and bis (2,2,6, 6-tetramethylpiperidyl) sebacate;
the hydrolysis-resistant reinforcing agent is one or more of nano hydrotalcite, nano calcium stearate, light magnesium oxide and nano zinc oxide;
the double-screw extrusion granulation equipment is set to have the temperature of 200-500 ℃ and the rotating speed of 200-600 r/min.
8. The anti-aging white packaging adhesive film as claimed in claim 1, which is characterized in that: the initiator is one or more of dimyristyl peroxydicarbonate, dihexadecyl peroxydicarbonate, tert-amyl peroxy-2-ethylhexyl ester, isopropyl tert-butyl peroxycarbonate, 1-bis (tert-butylperoxy) cyclohexane, tert-butyl peroxy-3, 3, 5-trimethylhexanoate, tert-amyl peroxybenzoate, tert-amyl peroxy-2-ethylhexanoate and ethyl 3, 3-di (tert-butylperoxy) butyrate.
9. The anti-aging white packaging adhesive film as claimed in claim 1, which is characterized in that: the auxiliary crosslinking agent is one or a combination of more of triallyl isocyanurate, triallyl cyanurate, ethylene glycol dimethacrylate, 1,3, 5-tri-2-propenyl-1, 3, 5-triazine-2, 4,6(1H,3H,5H) -trione, diethylene glycol dimethacrylate, tri-allyl isocyanate, triallyl cyanurate and N, N' -m-phenylene bismaleimide.
10. The preparation process of the anti-aging white packaging adhesive film according to claim 1, which is characterized in that: the high-reflection master batch component is sheared and extruded in a double-screw granulator, is mixed with a resin material matrix, an anti-aging functional master batch, an initiator, an auxiliary crosslinking agent, a silane coupling agent and a material toughening agent after being bombarded and activated by high-energy electron beams, is extruded to form a film by tape casting, and is pre-crosslinked to form a product;
the energy of the high-energy electron beam is 5-50 Kgy.
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