A scratch-resistant fluorocarbon layer coating solution and a solar backboard using the coating solution
A technology of solar backplane and fluorocarbon layer, applied in the field of solar backplane, can solve the problem that the fluorocarbon layer is easy to be scratched
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[0062] The preparation method of the solar backplane film provided by the invention comprises the following steps:
[0063] (1) Coat the fluorocarbon layer coating solution on the surface of the substrate, and place it in a circulation oven for curing to form a fluorocarbon layer; (2) Coat the other side of the semi-finished substrate coated with the fluorocarbon layer with an adhesive layer , place it in a circulating oven for drying treatment, and then compound the fluorine film layer; (3) ripen the finished solar backplane; (4) laminate the solar backplane and EVA to prepare a simulated test package strength.
[0064] Further, (1) in the process, the temperature of the circulating oven drying of the fluorocarbon layer treatment is 150° C., and the time is 2 minutes;
[0065] Further, (2) The temperature of the circulating oven for drying the adhesive layer during the process is 90°C, and the time is 2 minutes;
[0066] Further, the aging treatment temperature in the proces...
Embodiment 1
[0079] The preparation method of the fluorocarbon layer coating solution provided in this embodiment includes:
[0080] 50% polytetrafluoroethylene type fluorocarbon resin, 25% rutile titanium dioxide, 3% matting powder, 16.5% modified thermoplastic polyurethane resin, Tg temperature of modified thermoplastic polyurethane resin is 10 ℃, 0.5% poly Acrylate resin, 5% isocyanate. The aforementioned materials were dispersed in an organic solvent to form a fluorocarbon layer coating solution with a solid content of 40%. Among them, polytetrafluoroethylene type fluorocarbon resin is provided by Daikin Fluorochemical Co., Ltd., titanium dioxide is provided by DuPont, matting powder silica is provided by Grace Co., Ltd., modified thermoplastic polyurethane resin is provided by Woda Chemical, and polyacrylate resin is provided by BYK provided it, the isocyanate was provided by Mitsui Chemicals, and the organic solvent was butyl acetate.
[0081] The coating solution is coated on a 27...
Embodiment 2
[0085] The preparation method of the fluorocarbon layer coating solution provided in this embodiment includes:
[0086] 42% polytetrafluoroethylene type fluorocarbon resin, 30% rutile type titanium dioxide, 1% matting powder, 20% modified thermoplastic polyurethane resin, Tg temperature is 30 ° C, 0.3% polyacrylate resin, 6.7% of isocyanates. The aforementioned materials are dispersed in an organic solvent to form a fluorocarbon layer coating solution with a solid content of 60%. Among them, polytetrafluoroethylene type fluorocarbon resin is provided by Daikin Fluorochemical Co., Ltd., titanium dioxide is provided by DuPont, matting powder is provided by Grace Co., Ltd., modified thermoplastic polyurethane resin is provided by Croda Chemicals, and polyacrylate is provided by BYK Chemicals. , the isocyanate was provided by Mitsui Chemicals, and the organic solvent was butyl acetate.
[0087] Coatings were applied on 275 μm PET substrates.
[0088] The thickness of the formed...
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