CN115851160A - POE packaging adhesive film for N-type TOPCon single-glass assembly and preparation method - Google Patents
POE packaging adhesive film for N-type TOPCon single-glass assembly and preparation method Download PDFInfo
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Abstract
The invention relates to a POE (polyolefin elastomer) packaging adhesive film, in particular to a POE packaging adhesive film for an N-type TOPCon single-glass assembly and a preparation method thereof, and the POE packaging adhesive film is characterized in that: the structure is a PPP three-layer structure, preferably a PP double-layer structure, most preferably a single-layer P structure, and comprises the following raw materials in parts by weight: 54-94 parts of first matrix resin, 5-30 parts of second matrix resin, 0.3-2 parts of surface modifier, 0.4-3 parts of cross-linking agent, 0.1-10 parts of water-blocking acid-absorbing agent, 0.2-1 part of anti-aging auxiliary agent. The POE packaging adhesive film has excellent anti-freezing performance and anti-damp-heat aging performance, and is widely applied to the field of solar components.
Description
Technical Field
The invention relates to a POE (polyolefin elastomer) adhesive film for solar packaging, in particular to a POE packaging adhesive film for an N-type TOPCon single-glass assembly and a preparation method thereof.
Background
The front coating of the N-type TOPCon battery is silver-aluminum slurry, which is determined to easily cause battery oxidation in a high-temperature and high-humidity environment, and water vapor invades and corrodes grid line silver slurry to cause component blackening and power attenuation. The conventional POE is a non-polar material, the assembly has the problem of slipping and shifting in the manufacturing process, so that the assembly is degraded, and the conventional POE cannot meet the reliability requirement of a single-glass N-type TOPCon assembly. In the prior art, the EPE adhesive film forcedly extrudes the nonpolar POE and the polar EVA together, the auxiliary agent is transferred, and the line acid substance is produced in the degradation after aging, so that the power attenuation of the photovoltaic module is large after the photovoltaic module is subjected to damp-heat aging, and the problems of large-area delamination of the four corners and the short side bubbles of the module and the module are solved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a POE (polyolefin elastomer) packaging adhesive film for an N-type TOPCon single-glass assembly, which is adaptive to the single-glass N-type TOPCon assembly, has excellent anti-humid and freezing performance and anti-humid and thermal aging performance, and a preparation method thereof.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides a POE encapsulation glued membrane for N type TOPCon single glass subassembly, includes the raw materials according to the part by weight:
54-94 parts of first matrix resin; 5-30 parts of second matrix resin; 0.3-2 parts of a surface modifier; 0.4-3 parts of a crosslinking agent; 0.1-10 parts of a water-blocking acid absorbent; 0.2-1 part of anti-aging auxiliary agent;
the first matrix resin is POE resin and comprises one or more of ethylene-butene copolymer, ethylene-octene copolymer, ethylene-hexene copolymer and ethylene-alpha olefin copolymer;
the second matrix resin is modified polyolefin resin and comprises one or more of polyolefin grafted maleic anhydride resin, polyolefin grafted alkyl siloxane resin, polyolefin grafted glycidyl methacrylate resin, polyolefin grafted silane resin, polyolefin grafted polysiloxane resin, polyolefin grafted acrylic resin, polyolefin grafted polyethylene resin, polyolefin grafted polypropylene resin, polyolefin grafted silsesquioxane resin, polyhedral oligomeric silsesquioxane polymer POSS modified resin and LLDPE.
The long carbon chain coupling agent, the polyolefin modified resin and the water-blocking acid-absorbing auxiliary agent are used, the peeling strength of POE after aging is improved, and the TC50+ HF10 power attenuation of the single-glass assembly and the single-glass white back plate assembly is less than 2%; the DH1000h power attenuation is less than 2.5%; the DH2000h power attenuation is less than 4%;
by applying a polyolefin modification technology, a multilayer structure and a thermoforming antiskid technology, the problems of separation of POE (polyolefin elastomer) film polar auxiliary agents and water vapor barrier reduction of system acidity are solved, so that the damp-heat aging power attenuation is reduced, and the TC50+ HF10 power attenuation of a single-glass assembly is less than 1%; the DH1000h power attenuation is less than 2%; the DH2000h power attenuation is less than 3%.
Preferably, the anti-aging auxiliary agent is an ultraviolet light absorber, and is one or more of benzophenones, salicylates, benzotriazoles and hindered amine light stabilizers.
Preferably, the surface modifier is an organosilicon oxide and is one of a methoxy oligomer coupling agent and an ethoxy oligomer coupling agent, and the degree of polymerization is more than 100.
Preferably, the surface modifier is one or more of gamma-methacryloxypropyltrimethoxysilane, methacryloxy silane, vinyl silane and methoxy silane.
Preferably, the crosslinking agent is one or more of organic peroxide, polyisocyanate, polyol, glycidyl ether, metal organic oxide, isocyanate, aziridine, acrylic, DTA crosslinking agent;
preferably, the cross-linking agent is tert-amyl peroxy-2-ethylhexyl carbonate and tert-2-ethylhexyl peroxydicarbonate, and the mass ratio of the tert-amyl peroxy-2-ethylhexyl carbonate to the tert-butyl peroxydicarbonate is 1:3-3: 1.
preferably, the water-blocking acid-absorbing agent is one or more of PVDC, magnesium hydroxide, calcium hydroxide, intercalated magnesium-aluminum hydrotalcite, cyclic aliphatic epoxy resin and dipentaerythritol;
the particle size is 0.5-100 microns.
Preferably, the packaging adhesive film structure is a three-layer PPP structure, and the outermost layer P is provided with surface patterns;
the outermost layer P layer is a reinforced bonding layer, the middle layer P layer is a supporting layer, and the inner layer P layer is an elastic layer;
the surface pattern is a thermal forming antiskid pattern, and the shape of the pattern is one or more of a # -shaped pattern and a horizontal and vertical stripe.
The outermost layer P is a reinforced bonding layer, so that the bonding strength between the aged P layer and the back plate and the aged P layer after peeling are improved, and water vapor is prevented from entering;
the inner layer P is an elastic layer, which reduces the lamination crack of the component and improves the yield of the component.
Preferably, the thickness of the outermost layer P layer is 0.2-1mm, the thickness of the middle layer P layer is 0-0.2mm, and the thickness of the outermost layer P layer is 0-0.3mm.
A preparation method of a POE packaging adhesive film for an N-type TOPCon single-glass assembly comprises the steps of proportioning materials according to a proportion, mixing at a high speed for 8-15h, and after an auxiliary agent is completely absorbed, carrying out tape casting extrusion or blow molding at a process temperature of 75-110 ℃.
The forming mode is tape casting forming, film blowing forming, and the glue film is processed by corona with the power of 0-15KV.
The composite material is particularly suitable for a single-glass N-type TOPCon assembly, and has excellent humidity-heat aging resistance, humidity-freeze aging resistance and electrical properties.
The innovation points of the invention are as follows:
1. by adopting a unique surface modification coupling technology, the initial bonding strength and the aged bonding strength are obviously improved, and the single-glass assembly meets the IEC double standard or even triple standard.
2. On a POE cross-linked system, a cross-linking initiator adopts special design and combines an original process technology, so that the decomposition rate of the initiator is improved, the induced transfer is reduced, the active center diffusion is improved, the reaction rate of POE is greatly improved, the lamination efficiency of the assembly is obviously improved, and the lamination time of the assembly is shortened.
3. The POE resin is modified and is the most central technical point, and the auxiliary agent grafting and thermoforming back pattern anti-slip technology is adopted, wherein the compatibility of polar auxiliary agents and nonpolar POE particles is obviously improved by changing the structure of the auxiliary agent and optimizing the physical processing mode, so that the separation of the auxiliary agent on the surface of the packaging adhesive film under the same condition is obviously improved, the slip problem of POE and battery pieces and glass is thoroughly solved, and the pain point of the industry is solved.
4. Smart rhinoceros POE glued membrane adopts pure POE design, and photovoltaic module is at ageing in-process, solves the ageing back bubble that EPE glued membrane exists completely, and the delamination and trade pain point problems such as body glued membrane auxiliary agent migration.
Therefore, the POE packaging adhesive film for the N-type TOPCon single-glass assembly and the preparation method thereof are suitable for the single-glass N-type TOPCon assembly, and have excellent humidity, heat, aging, humidity, freezing and aging resistance and electrical properties.
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: a POE packaging adhesive film for an N-type TOPCon single-glass assembly and a preparation method thereof are disclosed, and the POE packaging adhesive film comprises the following raw materials in parts by weight:
87.2 parts of first matrix resin; 10 parts of a second matrix resin; 1 part of surface modifier, 1 part of cross-linking agent, 0.5 part of water-blocking acid-absorbing agent and 0.3 part of anti-aging auxiliary agent.
The first matrix resin is POE resin and comprises ethylene-butylene copolymer and ethylene-octene copolymer.
The second matrix resin is LLDPE resin and polyolefin grafted silane resin.
The anti-aging auxiliary agent is a hindered amine light stabilizer.
The surface modifier is organosilicon oxide, ethoxy oligomer coupling agent and gamma-methacryloxypropyl trimethoxy silane.
The cross-linking agent is tert-amyl peroxy-2-ethylhexyl carbonate and tert-butyl peroxy-2-ethylhexyl carbonate, the proportion is 1:3, and acrylic resin.
The water-blocking acid absorbent is magnesium hydroxide or PVDC.
The packaging adhesive film structure is a three-layer PPP structure, the decorative pattern is a # -shaped decorative pattern, the thickness of the P layer on the outermost layer is 0.5mm, the thickness of the P layer on the middle layer is 0.1mm, and the thickness of the P layer on the innermost layer is 0.1mm.
The corona power is 0KV.
A preparation method of a POE (polyolefin elastomer) packaging adhesive film for an N-type TOPCon single-glass assembly comprises the following steps: the materials are proportioned according to the proportion, mixed at high speed for 10h, and cast and extruded at the process temperature of 100 ℃ after the auxiliary agent is completely absorbed, so as to prepare the packaging adhesive film special for the single glass of the N-type TOPCon battery.
Example 2: the POE packaging adhesive film for the N-type TOPCon single-glass assembly comprises the following raw materials in parts by weight:
82.2 parts of first matrix resin, 15 parts of second matrix resin, 0.8 part of surface modifier, 0.8 part of cross-linking agent, 5 parts of water-blocking acid-absorbing agent and 0.2 part of anti-aging auxiliary agent.
The first matrix resin is POE resin, including ethylene-butene copolymer and ethylene-hexene copolymer.
The second matrix resin is polyolefin grafted silane resin and polyolefin grafted maleic anhydride resin.
The anti-aging auxiliary agent is benzotriazole.
The surface modifier is methoxy oligomer coupling agent, methacryloxy silane or methoxy silane.
The cross-linking agent is polyisocyanate, isocyanate, peroxy-2-ethylhexyl carbonate tert-amyl ester and tert-butyl peroxy carbonate-2-ethylhexyl ester, and the proportion of the two is 1:1.
The water-blocking acid-absorbing agent is calcium hydroxide or cyclic aliphatic epoxy resin.
The packaging adhesive film structure is a three-layer PPP structure, the decorative pattern is a horizontal and vertical decorative pattern, the thickness of the P layer on the outermost layer is 0.4mm, the thickness of the P layer on the middle layer is 0.15mm, and the thickness of the P layer on the innermost layer is 0.2mm.
The corona power is 2KV.
A preparation method of a POE (polyolefin elastomer) packaging adhesive film for an N-type TOPCon single-glass assembly comprises the following steps: the materials are proportioned according to the proportion, mixed at high speed for 12h, and cast and extruded at the process temperature of 105 ℃ after the auxiliary agent is completely absorbed, so as to prepare the special packaging adhesive film for the single glass of the N-type TOPCon battery.
Example 3: a POE packaging adhesive film for an N-type TOPCon single-glass assembly is prepared from the following raw materials in parts by weight:
66.5 parts of first matrix resin, 20 parts of second matrix resin, 1.5 parts of surface modifier, 1.5 parts of cross-linking agent, 10 parts of water-blocking acid-absorbing agent and 0.5 part of anti-aging auxiliary agent.
The first matrix resin is POE resin and comprises ethylene-octene copolymer and ethylene-alpha olefin copolymer.
The second matrix resin is polyolefin grafted silsesquioxane resin, cage type silsesquioxane polymer POSS modified resin and LLDPE.
The anti-aging auxiliary agent is salicylic acids and benzotriazole.
The surface modifier is gamma-methacryloxypropyl trimethoxy silane or methoxy silane.
The cross-linking agent is polyalcohol, peroxy-2-ethylhexyl carbonate tert-amyl ester and tert-butyl peroxy carbonate-2-ethylhexyl ester, and the mass ratio is 3:1 and acrylic acid.
The water-blocking acid-absorbing agent is intercalated with the magnalium hydrotalcite, the cyclic aliphatic epoxy resin and the PVDC.
The packaging adhesive film structure is a three-layer PPP structure, the decorative pattern is a transverse and vertical grid-shaped decorative pattern, the thickness of the P layer on the outermost layer is 0.3mm, the thickness of the P layer on the middle layer is 0.2mm, and the thickness of the P layer on the innermost layer is 0.1mm.
The corona power is 5KV.
A preparation method of a POE packaging adhesive film for an N-type TOPCon single-glass assembly comprises the following steps: the materials are proportioned according to a proportion, mixed at a high speed for 15 hours, and subjected to tape casting extrusion at a process temperature of 95 ℃ after the auxiliary agent is completely absorbed, so that the packaging adhesive film special for the single glass of the N-type TOPCon battery is prepared.
Example 4: a POE packaging adhesive film for an N-type TOPCon single-glass assembly is prepared from the following raw materials in parts by weight:
62.5 parts of first matrix resin, 25 parts of second matrix resin, 1.8 parts of surface modifier, 2 parts of cross-linking agent, 8 parts of water-blocking acid-absorbing agent and 0.7 part of anti-aging auxiliary agent.
The first matrix resin is POE resin and comprises ethylene-octene copolymer and ethylene-butene hydrocarbon copolymer.
The second matrix resin is polyolefin grafted alkyl siloxane resin, polyolefin grafted glycidyl methacrylate resin, polyolefin grafted silane resin and polyolefin grafted polyethylene resin.
The anti-aging auxiliary agent is specifically a hindered amine light stabilizer.
One or more of surface modifier methacrylic oxysilane, vinyl silane and ethoxy oligomer coupling agent.
The cross-linking agent is peroxy-2-ethylhexyl tert-amyl carbonate, TAIC, acrylic acid.
The water-blocking acid-absorbing agent is calcium oxide, cyclic aliphatic epoxy resin or dipentaerythritol.
The packaging adhesive film structure is a three-layer PPP structure, the decorative patterns are in a shape of a Chinese character 'jing', the thickness of a P layer on the outermost layer is 0.2mm, the thickness of a P layer on the middle layer is 0.2mm, and the thickness of a P layer on the innermost layer is 0.2mm.
The corona power was 10KV.
A preparation method of a POE packaging adhesive film for an N-type TOPCon single-glass assembly comprises the following steps: the materials are proportioned according to the proportion, mixed at high speed for 8h, and cast and extruded at the process temperature of 105 ℃ after the auxiliary agent is completely absorbed, so as to prepare the special packaging adhesive film for the single glass of the N-type TOPCon battery.
Table 1 packaging adhesive film single glass assembly test meter
| Item | Volume resistivity omega cm | Decay% of DH2000 h% | TC50+ HF10 decay% |
| Example 1 | 1.44E17 | 1.25% | 0.72% |
| Example 2 | 2.45E17 | 2.00% | 0.96% |
| Example 3 | 6.12E17 | 1.55% | 0.83% |
| Example 4 | 3.77E17 | 1.32% | 1.02% |
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 as claimed in the present invention.
Claims (10)
1. The utility model provides a POE encapsulation glued membrane is used to N type TOPCon single glass subassembly which characterized in that: the composite material comprises the following raw materials in parts by weight:
54-94 parts of first matrix resin; 5-30 parts of second matrix resin; 0.3-2 parts of a surface modifier; 0.4-3 parts of a crosslinking agent; 0.1-10 parts of a water-blocking acid absorbent; 0.2-1 part of anti-aging auxiliary agent;
the first matrix resin is POE resin and comprises one or more of ethylene-butene copolymer, ethylene-octene copolymer, ethylene-hexene copolymer and ethylene-alpha olefin copolymer;
the second matrix resin is modified polyolefin resin and comprises one or more of polyolefin grafted maleic anhydride resin, polyolefin grafted alkyl siloxane resin, polyolefin grafted glycidyl methacrylate resin, polyolefin grafted silane resin, polyolefin grafted polysiloxane resin, polyolefin grafted acrylic resin, polyolefin grafted polyethylene resin, polyolefin grafted polypropylene resin, polyolefin grafted silsesquioxane resin, polyhedral oligomeric silsesquioxane (POSS) modified resin and Linear Low Density Polyethylene (LLDPE).
2. The POE packaging adhesive film for the N-type TOPCon single-glass assembly as claimed in claim 1, wherein: the anti-aging auxiliary agent is an ultraviolet light absorber, and is one or more of benzophenones, salicylic acids, benzotriazoles and hindered amine light stabilizers.
3. The POE (polyolefin elastomer) packaging adhesive film for the N-type TOPCon single-glass assembly as claimed in claim 1, wherein: the surface modifier is organic silicon oxide and is one of methoxy oligomer coupling agent and ethoxy oligomer coupling agent, and the polymerization degree is more than 100.
4. The POE packaging adhesive film for the N-type TOPCon single-glass assembly as claimed in claim 3, wherein: the surface modifier is one or more of gamma-methacryloxypropyl trimethoxy silane, methacryloxy silane, vinyl silane and methoxy silane.
5. The POE (polyolefin elastomer) packaging adhesive film for the N-type TOPCon single-glass assembly as claimed in claim 1, wherein: the cross-linking agent is one or more of organic peroxide, polyisocyanate, polyalcohol, glycidyl ether, metal organic oxide, isocyanate, aziridine, acrylic and DTA cross-linking agent.
6. The POE packaging adhesive film for the N-type TOPCon single-glass assembly as claimed in claim 5, wherein: the cross-linking agent is tert-amyl peroxy-2-ethylhexyl carbonate and tert-butyl peroxy-2-ethylhexyl carbonate, and the mass ratio of the tert-amyl peroxy-2-ethylhexyl carbonate to the tert-butyl peroxy-2-ethylhexyl carbonate is 1:3-3: 1.
7. the POE (polyolefin elastomer) packaging adhesive film for the N-type TOPCon single-glass assembly as claimed in claim 1, wherein: the water-blocking acid-absorbing agent is one or more of PVDC, magnesium hydroxide, calcium hydroxide, intercalated magnesium-aluminum hydrotalcite, cyclic aliphatic epoxy resin and dipentaerythritol;
the particle size is 0.5-100 microns.
8. The POE (polyolefin elastomer) packaging adhesive film for the N-type TOPCon single-glass assembly as claimed in claim 1, wherein: the packaging adhesive film structure is a three-layer PPP structure, and the outermost layer P is provided with surface patterns;
the outermost layer P layer is a reinforced bonding layer, the middle layer P layer is a supporting layer, and the inner layer P layer is an elastic layer;
the surface pattern is a thermal forming antiskid pattern, and the shape of the pattern is one or more of a # -shaped pattern and a horizontal and vertical stripe.
9. The POE packaging adhesive film for the N-type TOPCon single glass assembly as claimed in claim 8, wherein: the thickness of the outermost layer P layer is 0.2-1mm, the thickness of the middle layer P layer is 0-0.2mm, and the thickness of the outermost layer P layer is 0-0.3mm.
10. The method for preparing the POE packaging adhesive film for the N-type TOPCon single-glass assembly as claimed in claim 8, wherein the POE packaging adhesive film comprises the following steps: the materials are proportioned according to the proportion, mixed at high speed for 8-15h, and cast extruded or blow molded at the process temperature of 75-110 ℃ after the auxiliary agent is completely absorbed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310030188.3A CN115851160A (en) | 2023-01-09 | 2023-01-09 | POE packaging adhesive film for N-type TOPCon single-glass assembly and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310030188.3A CN115851160A (en) | 2023-01-09 | 2023-01-09 | POE packaging adhesive film for N-type TOPCon single-glass assembly and preparation method |
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| CN115851160A true CN115851160A (en) | 2023-03-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116535996A (en) * | 2023-05-08 | 2023-08-04 | 浙江祥邦科技股份有限公司 | Water vapor barrier type anti-aging white EVA packaging adhesive film and preparation process thereof |
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| CN108795124A (en) * | 2018-06-26 | 2018-11-13 | 乐凯胶片股份有限公司 | A kind of photovoltaic polyolefin packaging adhesive film |
| CN109294455A (en) * | 2018-09-04 | 2019-02-01 | 江苏鹿山光电科技有限公司 | A kind of solar energy composite package glue film used for packing material and preparation method thereof |
| CN112980340A (en) * | 2021-02-20 | 2021-06-18 | 江苏鹿山新材料有限公司 | Packaging adhesive film for packaging HJT battery, preparation method of packaging adhesive film and prepared photovoltaic module |
| CN114806457A (en) * | 2022-04-24 | 2022-07-29 | 浙江祥隆科技有限公司 | Special packaging adhesive film for TOPCon battery and preparation method thereof |
-
2023
- 2023-01-09 CN CN202310030188.3A patent/CN115851160A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108795124A (en) * | 2018-06-26 | 2018-11-13 | 乐凯胶片股份有限公司 | A kind of photovoltaic polyolefin packaging adhesive film |
| CN109294455A (en) * | 2018-09-04 | 2019-02-01 | 江苏鹿山光电科技有限公司 | A kind of solar energy composite package glue film used for packing material and preparation method thereof |
| CN112980340A (en) * | 2021-02-20 | 2021-06-18 | 江苏鹿山新材料有限公司 | Packaging adhesive film for packaging HJT battery, preparation method of packaging adhesive film and prepared photovoltaic module |
| CN114806457A (en) * | 2022-04-24 | 2022-07-29 | 浙江祥隆科技有限公司 | Special packaging adhesive film for TOPCon battery and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116535996A (en) * | 2023-05-08 | 2023-08-04 | 浙江祥邦科技股份有限公司 | Water vapor barrier type anti-aging white EVA packaging adhesive film and preparation process thereof |
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