CN114171617B - Double-glass assembly capable of preventing water vapor from entering - Google Patents

Double-glass assembly capable of preventing water vapor from entering Download PDF

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Publication number
CN114171617B
CN114171617B CN202111392109.0A CN202111392109A CN114171617B CN 114171617 B CN114171617 B CN 114171617B CN 202111392109 A CN202111392109 A CN 202111392109A CN 114171617 B CN114171617 B CN 114171617B
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parts
solar cell
stirring
glass
adhesive
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CN114171617A (en
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朱靖
郑玉国
黄明
黎小英
刘天国
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Jiangxi Renjiang Technology Co ltd
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Jiangxi Renjiang Technology Co ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J129/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Adhesives based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Adhesives based on derivatives of such polymers
    • C09J129/02—Homopolymers or copolymers of unsaturated alcohols
    • C09J129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02—Details
    • H01L31/0203—Containers; Encapsulations, e.g. encapsulation of photodiodes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Sealing Material Composition (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention discloses a dual-glass assembly capable of preventing water vapor from entering, which belongs to the technical field of dual-glass assemblies and comprises a solar cell and a side sealing frame, wherein a first packaging glass and a second packaging glass are respectively arranged above and below the solar cell, a sealing adhesive layer is arranged between the solar cell and the first packaging glass and between the solar cell and the second packaging glass, four sides of the sealing adhesive layer are connected with the inner wall of the side sealing frame, the sealing adhesive layer is prepared by mixing an adhesive, an antioxidant and a corrosion-resistant agent, and the adhesive comprises polyvinyl acetate, polyvinyl alcohol, polyisobutylene and polyester; the self-made sealing adhesive layer has stronger oxidation resistance and corrosion resistance, is used for sealing the double-glass assembly, can prevent water vapor from entering for a long time, and can form long-term effective protection for the solar cell.

Description

Double-glass assembly capable of preventing water vapor from entering
Technical Field
The invention relates to the technical field of double-glass assemblies, in particular to a double-glass assembly capable of preventing steam from entering.
Background
After the existing double-glass assembly is used for a certain time, water vapor is easy to permeate into the double-glass assembly from the adhesive film between the gaps, so that the water vapor enters the solar cell, and the solar cell is aged. Moreover, as the service time increases, the adhesive film ages, and water vapor more easily permeates into the solar cell through the adhesive film, so that the solar cell ages and a vicious circle is formed. Based on the above, how to prevent the steam from entering the dual-glass assembly becomes a problem to be solved urgently, and therefore, we propose a dual-glass assembly preventing the steam from entering.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a double-glass assembly capable of preventing water vapor from entering, overcomes the defects of the prior art and aims at solving the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a dual glass assembly that vapor proof got into, includes solar cell piece and side seal frame, solar cell piece's top and below are equipped with encapsulation glass one and encapsulation glass two respectively, be equipped with the sealant layer between solar cell piece and the encapsulation glass one and between solar cell piece and the encapsulation glass two, four sides and the inner wall connection of side seal frame of sealant layer, the sealant layer is made through gluing agent, antioxidant, corrosion inhibitor mixture, the gluing agent includes polyvinyl acetate, polyvinyl alcohol, polyisobutylene, polyester, the antioxidant includes epoxy, cross-linking agent, acetic acid, polyvinyl alcohol, the corrosion inhibitor includes dioctyl phthalate, polyethylene glycol, stearic acid, polyoxypropylene polyoxyethylene glycerol ether, polydimethylsiloxane.
As a preferable technical scheme of the invention, the weight ratio of the adhesive, the oxidant and the corrosion inhibitor of the sealant layer is 2:1:1.
as a preferable technical scheme of the invention, the adhesive comprises the following raw materials in parts by weight: 4-15 parts of polyvinyl acetate, 2-7 parts of polyvinyl alcohol, 4-8 parts of polyisobutylene and 3-9 parts of polyester.
As a preferable technical scheme of the invention, the antioxidant comprises the following raw materials in parts by weight: 8-17 parts of epoxy resin, 2-7 parts of cross-linking agent, 7-9 parts of acetic acid and 8-11 parts of polyvinyl alcohol.
As a preferable technical scheme of the invention, the cross-linking agent is any one of epichlorohydrin, resorcinol diglycidyl ether and neopentyl glycol diglycidyl ether.
As a preferable technical scheme of the invention, the corrosion inhibitor comprises the following raw materials in parts by weight: 3-7 parts of dioctyl phthalate, 2-6 parts of polyethylene glycol, 4-8 parts of stearic acid, 2-5 parts of polyoxypropylene polyoxyethylene glycerol ether and 3-8 parts of polydimethylsiloxane.
As a preferable technical scheme of the invention, the preparation method of the sealant layer comprises the following specific steps:
s1, preparing an adhesive: uniformly mixing polyvinyl acetate and polyvinyl alcohol, stirring at normal temperature, adding polyisobutylene and polyester, heating and stirring to obtain an adhesive;
s2, preparation of an antioxidant: mixing epoxy resin, cross-linking agent, acetic acid and polyvinyl alcohol, heating to 60-110 ℃, stirring for 20-40min, and cooling to obtain antioxidant;
s3, preparing a corrosion inhibitor: uniformly mixing dioctyl phthalate, polyethylene glycol and stearic acid to obtain a mixed solution A, mixing polyoxypropylene polyoxyethylene glyceryl ether and polydimethylsiloxane, heating and uniformly stirring to obtain a mixed solution B, adding the mixed solution A into the mixed solution B, heating to 110-130 ℃ and stirring for 1-2h to obtain a corrosion inhibitor;
s4, the adhesive, the antioxidant and the corrosion inhibitor prepared by the method are mixed according to the weight ratio of 2: uniformly mixing in a ratio of 1:1 to obtain sealant, and coating the sealant into the interval between the solar cell and the first and second packaging glasses to obtain a sealant layer.
As a preferable technical scheme of the invention, in the step S1, stirring and mixing are carried out by a stirrer, wherein the stirring speed is 220-260rad/min, and the stirring time is 10-20min.
The invention has the beneficial effects that:
the self-made antioxidant is mixed by epoxy resin, a cross-linking agent, acetic acid and polyvinyl alcohol, the self-made antioxidant has good oxidation resistance, the mixed solution is prepared by uniformly mixing dioctyl phthalate, polyethylene glycol and stearic acid, the mixed solution of polyoxypropylene polyoxyethylene glycerol ether and polydimethylsiloxane is subjected to temperature rising reaction, the self-made corrosion inhibitor has the performance of resisting corrosion by acid and alkali solution, the self-made adhesive is used for sealing by uniformly mixing polyvinyl acetate and polyvinyl alcohol and stirring at normal temperature, polyisobutylene and polyester are added for heating and stirring, and the self-made adhesive is used for sealing, and the prepared corrosion inhibitor, the corrosion inhibitor and the adhesive are mixed to serve as raw materials of a sealant layer, so that the sealant layer has good sealing performance, and meanwhile has strong oxidation resistance and corrosion resistance, the service life of the sealant layer is prolonged, the gap between double glasses is blocked by the sealant layer, water vapor can be prevented from entering for a long time, and long-term and effective protection is formed on a solar cell.
The self-made sealing adhesive layer has stronger oxidation resistance and corrosion resistance, is used for sealing the double-glass assembly, can prevent water vapor from entering for a long time, and can form long-term effective protection for the solar cell.
Drawings
FIG. 1 is a schematic cross-sectional side view of the present invention;
FIG. 2 is a schematic diagram of a side seal frame etching structure according to the present invention.
In the figure: 1. a solar cell; 2. packaging first glass; 3. packaging second glass; 4. a sealant layer; 5. and (5) side sealing the frame.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-2, a dual glass assembly capable of preventing water vapor from entering comprises a solar cell 1 and a side sealing frame 5, wherein a first packaging glass 2 and a second packaging glass 3 are respectively arranged above and below the solar cell 1, a sealing adhesive layer 4 is arranged between the solar cell 1 and the first packaging glass 2 and between the solar cell 1 and the second packaging glass 3, four sides of the sealing adhesive layer 4 are connected with the inner wall of the side sealing frame 5, the sealing adhesive layer 4 is prepared by mixing an adhesive, an antioxidant and a corrosion inhibitor, and the weight ratio of the adhesive, the oxidant and the corrosion inhibitor of the sealing adhesive layer 4 is 2:1:1, the adhesive comprises the following raw materials in parts by weight: 4 parts of polyvinyl acetate, 2 parts of polyvinyl alcohol, 4 parts of polyisobutene and 3 parts of polyester, wherein the antioxidant comprises the following raw materials in parts by weight: 8 parts of epoxy resin, 2 parts of cross-linking agent, 7 parts of acetic acid and 8 parts of polyvinyl alcohol, wherein the corrosion-resistant agent comprises the following raw materials in parts by weight: 3 parts of dioctyl phthalate, 2 parts of polyethylene glycol, 4 parts of stearic acid, 2 parts of polyoxypropylene polyoxyethylene glycerol ether, 3 parts of polydimethylsiloxane and the crosslinking agent is epichlorohydrin.
The preparation method of the sealant layer 4 comprises the following specific steps:
s1, preparing an adhesive: uniformly mixing polyvinyl acetate and polyvinyl alcohol, stirring at normal temperature, adding polyisobutylene and polyester, heating and stirring, stirring and mixing by a stirrer, wherein the stirring speed is 220rad/min, and the stirring time is 10min, so as to obtain an adhesive;
s2, preparation of an antioxidant: mixing epoxy resin, cross-linking agent, acetic acid and polyvinyl alcohol, heating to 60 ℃, stirring for 20min, and cooling to obtain antioxidant;
s3, preparing a corrosion inhibitor: uniformly mixing dioctyl phthalate, polyethylene glycol and stearic acid to obtain a mixed solution A, mixing polyoxypropylene polyoxyethylene glyceryl ether and polydimethylsiloxane, heating and uniformly stirring to obtain a mixed solution B, adding the mixed solution A into the mixed solution B, heating to 110 ℃, and stirring for 1h to obtain a corrosion inhibitor;
s4, the adhesive, the antioxidant and the corrosion inhibitor prepared by the method are mixed according to the weight ratio of 2: uniformly mixing in a ratio of 1:1 to obtain sealant, and coating the sealant into the interval between the solar cell sheet 1 and the first packaging glass 2 and the second packaging glass 3 to obtain the sealant layer.
Example two
Referring to fig. 1-2, a dual glass assembly capable of preventing water vapor from entering comprises a solar cell 1 and a side sealing frame 5, wherein a first packaging glass 2 and a second packaging glass 3 are respectively arranged above and below the solar cell 1, a sealing adhesive layer 4 is arranged between the solar cell 1 and the first packaging glass 2 and between the solar cell 1 and the second packaging glass 3, four sides of the sealing adhesive layer 4 are connected with the inner wall of the side sealing frame 5, the sealing adhesive layer 4 is prepared by mixing an adhesive, an antioxidant and a corrosion inhibitor, and the weight ratio of the adhesive, the oxidant and the corrosion inhibitor of the sealing adhesive layer 4 is 2:1:1, the adhesive comprises the following raw materials in parts by weight: 10 parts of polyvinyl acetate, 5 parts of polyvinyl alcohol, 6 parts of polyisobutene and 6 parts of polyester, wherein the antioxidant comprises the following raw materials in parts by weight: 13 parts of epoxy resin, 5 parts of cross-linking agent, 8 parts of acetic acid and 10 parts of polyvinyl alcohol, wherein the corrosion-resistant agent comprises the following raw materials in parts by weight: 5 parts of dioctyl phthalate, 4 parts of polyethylene glycol, 6 parts of stearic acid, 4 parts of polyoxypropylene polyoxyethylene glycerol ether and 6 parts of polydimethylsiloxane.
The preparation method of the sealant layer 4 comprises the following specific steps:
s1, preparing an adhesive: uniformly mixing polyvinyl acetate and polyvinyl alcohol, stirring at normal temperature, adding polyisobutylene and polyester, heating and stirring, stirring and mixing by a stirrer, wherein the stirring speed is 240rad/min, and the stirring time is 15min, so as to obtain an adhesive;
s2, preparation of an antioxidant: mixing epoxy resin, cross-linking agent, acetic acid and polyvinyl alcohol, heating to 85deg.C, stirring for 30min, and cooling to obtain antioxidant;
s3, preparing a corrosion inhibitor: uniformly mixing dioctyl phthalate, polyethylene glycol and stearic acid to obtain a mixed solution A, mixing polyoxypropylene polyoxyethylene glyceryl ether and polydimethylsiloxane, heating and uniformly stirring to obtain a mixed solution B, adding the mixed solution A into the mixed solution B, heating to 120 ℃ and stirring for 1.5h to obtain a corrosion inhibitor;
s4, the adhesive, the antioxidant and the corrosion inhibitor prepared by the method are mixed according to the weight ratio of 2: uniformly mixing in a ratio of 1:1 to obtain sealant, and coating the sealant into the interval between the solar cell sheet 1 and the first packaging glass 2 and the second packaging glass 3 to obtain the sealant layer.
In this example, the crosslinker is resorcinol diglycidyl ether.
Example III
Referring to fig. 1-2, a dual glass assembly capable of preventing water vapor from entering comprises a solar cell 1 and a side sealing frame 5, wherein a first packaging glass 2 and a second packaging glass 3 are respectively arranged above and below the solar cell 1, a sealing adhesive layer 4 is arranged between the solar cell 1 and the first packaging glass 2 and between the solar cell 1 and the second packaging glass 3, four sides of the sealing adhesive layer 4 are connected with the inner wall of the side sealing frame 5, the sealing adhesive layer 4 is prepared by mixing an adhesive, an antioxidant and a corrosion inhibitor, and the weight ratio of the adhesive, the oxidant and the corrosion inhibitor of the sealing adhesive layer 4 is 2:1:1, the adhesive comprises the following raw materials in parts by weight: 15 parts of polyvinyl acetate, 7 parts of polyvinyl alcohol, 8 parts of polyisobutene and 9 parts of polyester, wherein the antioxidant comprises the following raw materials in parts by weight: 817 parts of epoxy resin, 7 parts of cross-linking agent, 9 parts of acetic acid and 11 parts of polyvinyl alcohol, wherein the corrosion inhibitor comprises the following raw materials in parts by weight: 7 parts of dioctyl phthalate, 6 parts of polyethylene glycol, 8 parts of stearic acid, 5 parts of polyoxypropylene polyoxyethylene glycerol ether, 8 parts of polydimethylsiloxane and neopentyl glycol diglycidyl ether as a crosslinking agent.
The preparation method of the sealant layer 4 comprises the following specific steps:
s1, preparing an adhesive: uniformly mixing polyvinyl acetate and polyvinyl alcohol, stirring at normal temperature, adding polyisobutylene and polyester, heating and stirring, stirring and mixing by a stirrer, wherein the stirring speed is 260rad/min, and the stirring time is 20min, so as to obtain an adhesive;
s2, preparation of an antioxidant: mixing epoxy resin, cross-linking agent, acetic acid and polyvinyl alcohol, heating to 110 ℃, stirring for 40min, and cooling to obtain antioxidant;
s3, preparing a corrosion inhibitor: uniformly mixing dioctyl phthalate, polyethylene glycol and stearic acid to obtain a mixed solution A, mixing polyoxypropylene polyoxyethylene glyceryl ether and polydimethylsiloxane, heating and uniformly stirring to obtain a mixed solution B, adding the mixed solution A into the mixed solution B, heating to 130 ℃ and stirring for 2 hours to obtain a corrosion inhibitor;
s4, the adhesive, the antioxidant and the corrosion inhibitor prepared by the method are mixed according to the weight ratio of 2: uniformly mixing in a ratio of 1:1 to obtain sealant, and coating the sealant into the interval between the solar cell sheet 1 and the first packaging glass 2 and the second packaging glass 3 to obtain the sealant layer.
The self-made antioxidant is mixed by epoxy resin, a cross-linking agent, acetic acid and polyvinyl alcohol, the self-made antioxidant has good oxidation resistance, the mixed solution is prepared by uniformly mixing dioctyl phthalate, polyethylene glycol and stearic acid, the mixed solution of polyoxypropylene polyoxyethylene glycerol ether and polydimethylsiloxane is subjected to temperature rising reaction, the self-made corrosion inhibitor has the performance of resisting corrosion by acid and alkali solution, the self-made adhesive is used for sealing by uniformly mixing polyvinyl acetate and polyvinyl alcohol and stirring at normal temperature, polyisobutylene and polyester are added for heating and stirring, and the self-made adhesive is used for sealing, and the prepared corrosion inhibitor, the corrosion inhibitor and the adhesive are mixed to serve as raw materials of a sealant layer, so that the sealant layer has good sealing performance, and meanwhile has strong oxidation resistance and corrosion resistance, the service life of the sealant layer is prolonged, the gap between double glasses is blocked by the sealant layer, water vapor can be prevented from entering for a long time, and long-term and effective protection is formed on a solar cell.
Finally, it should be noted that: in the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The double-glass assembly capable of preventing water vapor from entering comprises a solar cell (1) and a side sealing frame (5), and is characterized in that packaging glass I (2) and packaging glass II (3) are respectively arranged above and below the solar cell (1), a sealing adhesive layer (4) is arranged between the solar cell (1) and the packaging glass I (2) and between the solar cell (1) and the packaging glass II (3), four sides of the sealing adhesive layer (4) are connected with the inner wall of the side sealing frame (5), the sealing adhesive layer (4) is prepared by mixing an adhesive, an antioxidant and a corrosion-resistant agent, the adhesive comprises polyvinyl acetate, polyvinyl alcohol, polyisobutylene and polyester, the antioxidant comprises epoxy resin, a crosslinking agent, acetic acid and polyvinyl alcohol, and the corrosion-resistant agent comprises dioctyl phthalate, polyethylene glycol, stearic acid, polyoxypropylene polyoxyethylene glycerol ether and polydimethylsiloxane;
the preparation method of the sealant layer (4) comprises the following specific steps:
s1, preparing an adhesive: uniformly mixing polyvinyl acetate and polyvinyl alcohol, stirring at normal temperature, adding polyisobutylene and polyester, heating and stirring to obtain an adhesive;
s2, preparation of an antioxidant: mixing epoxy resin, cross-linking agent, acetic acid and polyvinyl alcohol, heating to 60-110 ℃, stirring for 20-40min, and cooling to obtain antioxidant;
s3, preparing a corrosion inhibitor: uniformly mixing dioctyl phthalate, polyethylene glycol and stearic acid to obtain a mixed solution A, mixing polyoxypropylene polyoxyethylene glyceryl ether and polydimethylsiloxane, heating and uniformly stirring to obtain a mixed solution B, adding the mixed solution A into the mixed solution B, heating to 110-130 ℃ and stirring for 1-2h to obtain a corrosion inhibitor;
s4, the adhesive, the antioxidant and the corrosion inhibitor prepared by the method are mixed according to the weight ratio of 2: uniformly mixing in a ratio of 1:1 to obtain sealant, and coating the sealant into the interval between the solar cell (1) and the packaging glass I (2) and the packaging glass II (3) to obtain the sealant layer.
2. The dual-glass assembly capable of preventing steam from entering according to claim 1, wherein the adhesive comprises the following raw materials in parts by weight: 4-15 parts of polyvinyl acetate, 2-7 parts of polyvinyl alcohol, 4-8 parts of polyisobutylene and 3-9 parts of polyester.
3. The dual glass assembly of claim 2, wherein the antioxidant comprises the following raw materials in parts by weight: 8-17 parts of epoxy resin, 2-7 parts of cross-linking agent, 7-9 parts of acetic acid and 8-11 parts of polyvinyl alcohol.
4. A dual glass assembly according to claim 3, wherein the cross-linking agent is any one of epichlorohydrin, resorcinol diglycidyl ether, neopentyl glycol diglycidyl ether.
5. The dual glass assembly of claim 1, wherein the corrosion inhibitor comprises the following raw materials in parts by weight: 3-7 parts of dioctyl phthalate, 2-6 parts of polyethylene glycol, 4-8 parts of stearic acid, 2-5 parts of polyoxypropylene polyoxyethylene glycerol ether and 3-8 parts of polydimethylsiloxane.
6. The dual glass assembly according to claim 1, wherein in step S1, the stirring and mixing are performed by a stirrer at a stirring speed of 220-260rad/min for a stirring period of 10-20min.
CN202111392109.0A 2021-11-19 2021-11-19 Double-glass assembly capable of preventing water vapor from entering Active CN114171617B (en)

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CN105679865A (en) * 2016-01-28 2016-06-15 苏州佳亿达电器有限公司 Anti-aging back film used for solar photovoltaic panel
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CN110172209A (en) * 2019-04-17 2019-08-27 深圳市深捷通管业发展有限公司 A kind of high fire-retardant MPP bellows of heat dissipation corrosion resistant type and preparation method thereof
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