Solar cell back panel
A technology for solar cells and back sheets, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of performance degradation, easy hydrolysis, and increased weather resistance of polyester adhesive layers, and achieve difficult problems in improving production and processing performance. Excellent damp heat aging performance and excellent UV aging resistance
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Example Embodiment
[0034] Example 1
[0035] Hydroxy acrylic resin Q 182 200g
[0036] HDI dimer N 100 23g
[0037] Butyl acetate 160g
[0038] Matting powder HK 460 0.5g
[0039] Titanium dioxide 80g;
[0040] In a container equipped with a stirring device, add 200g of hydroxy acrylic resin Q182 made by Mitsui Chemicals Co., Ltd., Tg=45℃, OH value 45mgKOH / g), 160g of butyl acetate solvent and 0.5g of surface-modified n-propanol HK460 matting powder (manufactured by Degussa, D=7μm), 80g titanium dioxide, stirred for 20 minutes and filtered, then added 23g isocyanate HDI dimer N100 (manufactured by Bayer Materialscience, Germany), continue to stir for 20 minutes, and then filter. The adhesive layer coating liquid was obtained.
[0041] Coat the adhesive layer coating liquid on one side of the cleaned and corona-treated substrate PET film by gravure coating, and dry it at 140°C for 3 minutes to obtain an 8μm adhesive layer; then on the other side of the substrate The weathering layer is formed by coating o...
Example Embodiment
[0042] Example 2
[0043] Hydroxy acrylic resin EPA 5860 200g
[0044] IPDI Trimer Z 4470BA 22.4g
[0045] Ethyl acetate 160g
[0046] Matting powder SY 622 6g
[0047] Titanium dioxide 100g;
[0048] Add 200g of hydroxy acrylic resin EPA5860 (manufactured by Daicel Co., Ltd., Tg=12℃, OH value 27mgKOH / g), 160g ethyl acetate solvent and 6g n-hexanol surface modified SY622 into a container equipped with a stirring device (Made by Grace, USA, D=17μm), 100g of titanium dioxide, stirred for 20 minutes and filtered, then 22.4g of IPDI trimer Z 4470BA (manufactured by Bayer Materialscience, Germany) was added, and after stirring for 20 minutes, filtered to obtain a bond Layer coating liquid.
[0049] Coat the adhesive layer coating liquid on one side of the cleaned and corona treated substrate PET film by gravure coating, and dry at 90°C for 4 minutes to obtain a 20μm adhesive layer; then on the other side of the substrate The weather-resistant layer is formed by coating or compounding, and t...
Example Embodiment
[0050] Example 3
[0051] Hydroxy acrylic resin AC-1164A 120g
[0052] IPDI Trimer Z 4470BA 4g
[0053] Butanone 80g
[0054] Matting powder ED 5 3g
[0055] Titanium dioxide 50g;
[0056] Add 120g hydroxy acrylic resin AC-1164A (manufactured by Foshan Gaoming Tongde Chemical Co., Ltd., Tg=15℃, OH value 12mgKOH / g), 80g methyl ethyl ketone solvent and 3g n-hexanol surface modification Sexually treated matting powder ED 5 (Grace Company, USA, D=9μm), 50g titanium dioxide, stir for 20 minutes and filter, then add 4g isocyanate IPDI trimer Z 4470BA (manufactured by Bayer Materialscience), continue stirring for 20 minutes , Filter to obtain the adhesive layer coating liquid.
[0057] Coat one side of the cleaned and corona-treated PET film with the above-mentioned adhesive layer coating solution by gravure coating, and dry at 90°C for 3 minutes to obtain a 10μm adhesive layer; then on the other side of the substrate The weather-resistant layer is formed by coating or compounding, and the pr...
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