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Method for manufacturing solar-cell sealing material
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A technology for solar cells and manufacturing methods, applied in electrical components, circuits, photovoltaic power generation, etc., can solve problems such as difficulty in obtaining adhesive seals, and achieve the effects of excellent storage stability and easy management
Inactive Publication Date: 2016-06-15
CI KASEI COMPANY
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Abstract
Description
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Problems solved by technology
However, it is difficult to obtain a sealing material with sufficient adhesiveness among the above-mentioned silanecoupling agents
Method used
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[0071] [compound]
[0072] The abbreviations of the compounds used are shown below.
[0073] (light stabilizer)
[0074] a-1: bis(1,2,2,6,6-pentamethyl-4-piperidinyl)sebacate (pK b = 5 to 6, product name "JF-95", manufactured by Seonghoku Chemical Industry Co., Ltd.)
[0075] a-2: Polysuccinate (4-hydroxy-2,2,6,6-tetramethyl-1-piperidineethanol) ester (pK b = 7 to 8, product name "Tinuvin622", manufactured by BASF Japan)
[0076] a-3: bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl)sebacate (pK b =8 to 10, product name "Tinuvin123", manufactured by BASF Japan)
[0077] a-4: bis(1-undecyloxy-2,2,6,6-tetramethyl-4-piperidinone)carbonate (pK b = 11 to 12, product name "LA-81", manufactured by ADEKA Corporation)
[0078] e-1: Bis(2,2,6,6-tetramethyl-4-piperidinyl)sebacate (4≤pK b <5, product name "JF-90", manufactured by Chengbei Chemical Industry Co., Ltd.)
[0079] e-2: 3-(2,2,6,6-tetramethyl-4-piperidinyl)-2-methyl-1-propen-3-one (4≤pK b <5, product name "LA-87", man...
example 1
[0087] 0.2 parts by mass of a basic compound light stabilizer (a-1), 0.4 parts by mass of a silane coupling agent (b-1), 0.5 parts by mass of a crosslinking agent (c-1), and 0.5 parts by mass of a crosslinking aid (d-1) to obtain an additive solution.
example 2～10
[0089] An additive solution was obtained in the same manner as in Example 1 except that the composition of each component was changed as shown in Table 1.
[0090] [Table 1]
[0091] Unit: parts by mass
[0092]
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Abstract
This invention provides a method for manufacturing a solar-cell sealing material, said method having the following steps: a mixing step in which a sealing resin is mixed with an additive solution containing both a silanecoupling agent and a basic compound having a pKb between 5 and 12, inclusive, yielding a resin composition; and a sheet-forming step in which said resin composition is formed into a sheet, yielding a solar-cell sealing material. In this method for manufacturing a solar-cell sealing material, the aforementioned basic compound is preferably a light stabilizer that has a pKb between 5 and 12, inclusive.
Description
technical field [0001] The present invention relates to a manufacturing method of a sealing member for solar cells. This application claims priority based on patent application No. 2013-229516 filed in Japan on November 5, 2013, the contents of which are incorporated herein by reference. Background technique [0002] In order to seal and fix the solar cells, a solar cell sealing material (hereinafter, also simply referred to as abbreviated as hereinafter referred to as simply referred to as a solar cellsealant) formed of a sealing resin such as ethylene-vinyl acetatecopolymer excellent in transparency, processability, and crosslinking property is widely used in solar modules. Seals). Moreover, a silanecoupling agent is often mixed with a sealing material in order to improve the adhesiveness with transparent protective materials, such as a glass plate, a back sheet, etc. which are arrange|positioned on the surface side of a solar cell module (for example, patent document ...
Claims
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Application Information
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