Preparation method of nano coating for EVA (ethylene-vinyl acetate copolymer) film surface of solar packaged cell
A solar encapsulation and nano-coating technology, applied in conductive coatings, reflective/signal coatings, coatings, etc., can solve the problems of accelerated aging of EVA film, weakening of visible light, yellowing, etc., to improve the photoelectric conversion rate and adhesion. Good, easy-to-use effects
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Embodiment 1
[0029] The EVA film surface nano-coating of the present embodiment is made up of the following components:
[0030] Carbon Nanotubes 15g
[0031] Nano Silica 5g
[0032] Fatty alcohol polyoxyethylene ether 3g
[0033] Silane coupling agent 3g
[0034] Propylene Glycol Butyl Ether 3g
[0035] Absolute ethanol 71g;
[0036] The fatty alcohol polyoxyethylene ether is used as a dispersant, the silane coupling agent is used as a binder, and the propylene glycol butyl ether is used as a film-forming aid.
[0037] The preparation method of the nano-coating on the surface of the EVA film of the solar encapsulation battery of the present embodiment comprises the following specific steps:
[0038] A. Ingredients: weigh an appropriate amount of carbon nanotubes, nano-silica, fatty alcohol polyoxyethylene ether, silane coupling agent, propylene glycol butyl ether, ethanol, and water according to the above formula dosage, wherein the fatty alcohol polyoxyethylene ether As a dispersan...
Embodiment 2
[0044] The rest of the nano-coating on the surface of the EVA film of the present embodiment is the same as that of the embodiment 1, and the difference is:
[0045]The EVA film surface nano coating of the present embodiment is made up of following components:
[0046] Carbon nanotubes 20g
[0047] Nano silica 12g
[0048] Fatty alcohol polyoxyethylene ether 10g
[0049] Silane coupling agent 3g
[0050] Propylene Glycol Butyl Ether 4g
[0051] Propanol 50g;
[0052] The rest of the preparation method of the nano-coating on the surface of the solar energy encapsulating battery EVA film of this embodiment is the same as that of Example 1, except that in step D, the dispersion is ultrasonically oscillated at 20-40°C for 30 minutes and diluted 2 times After being applied to the surface of the EVA film, it is dried and cured.
Embodiment 3
[0054] The rest of the EVA film surface nano-coating of the present embodiment is identical with embodiment 1, and difference is:
[0055] The EVA film surface nano coating of the present embodiment is made up of following components:
[0056] Carbon nanotubes 19g
[0057] Nano silica 15g
[0058] Fatty alcohol polyoxyethylene ether 10g
[0059] Silane coupling agent 5g
[0060] Propylene Glycol Butyl Ether 5g
[0061] 46g of isopropanol;
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