Method for preparing functionalized EVA (Ethylene Vinyl Acetate) thin film
A functional and thin-film technology, applied in the direction of chemical instruments and methods, layered products, glass/slag layered products, etc., can solve the problems of reduced service life, damage, and accelerated aging of the interlayer film of laminated glass, and achieve high transmittance high effect
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Embodiment 1
[0025] Mix the slurry of nano-cerium doped tin antimony oxide and the slurry of nano-yttrium oxide (mass ratio: 1:1), the solid content of the mixed slurry is 16.5%, in the nano-cerium-doped tin oxide, cerium-doped The amount of antimony tin oxide is 5% of the weight of antimony tin oxide; the mixed slurry is evenly coated on the EVA (0.76mm) film through the glue coating machine, the thickness of the wet glue is 50 μm, and the film is dried; the film is sandwiched between two Between pieces of float glass (thickness 3mm) to obtain a sandwich glass, then place the sandwich glass in a sealed silica gel bag with an air pressure of 0.06MPa for 20 minutes, and then place the silica gel bag with the built-in sandwich glass in Put it in an oven at 135°C and keep it for 20 minutes to bond the glass and the interlayer film together. The laminated glass thus prepared can shield 98.8% of ultraviolet rays with a wavelength of 300-380nm and 98.8% of infrared rays with a wavelength of 780-2...
Embodiment 2
[0027] Mix nano cerium-doped tin antimony oxide slurry and nano silicon oxide slurry (mass ratio: 10:1), the solid content of the slurry is 16.5%, and the doping amount of cerium is 8% of the weight of tin antimony oxide; The glue coating machine evenly coats the slurry on the EVA (0.76mm) film, the thickness of the wet glue is 100μm, and it is dried to form a film; the film is sandwiched between two float glass plates (thickness: 3mm), In order to obtain a sandwich glass, place the sandwich glass in a sealed silica gel bag with an air pressure of 0.06MPa to degas for 20 minutes, then place the silica gel bag with the built-in sandwich glass in a vacuum oven at 135°C for 20 minutes, so that The glass and the interlayer film are bonded together, and the laminated glass thus prepared can shield 98.9% of ultraviolet rays of 300-380nm, shield 61% of infrared rays of 780-2500nm, and have a visible light transmittance of 75%.
Embodiment 3
[0029] Mix nano-cerium-doped tin-antimony oxide slurry and nano-alumina slurry (mass ratio: 5:1), the solid content of the slurry is 18.5%, and the doping amount of nano-cerium is 10% of the weight of tin-antimony oxide; The slurry is evenly coated on the EVA (0.38mm) film by a glue spreader, and the thickness of the wet glue is 50 μm, and it is dried to form a film; the film is sandwiched between two float glass plates (the thickness of the glass plate is 3mm) ) to obtain a sandwich glass, then place the sandwich glass in a sealed silica gel bag with an air pressure of 0.04MPa for 20 minutes, and then put the silica gel bag with the built-in sandwich glass in an oven at 135°C for 20 minutes , so that the glass and the interlayer film are bonded together, the laminated glass thus prepared can shield 98.6% of the ultraviolet rays of 300-380nm, shield 55% of the infrared rays of 780-2500nm, and the visible light transmittance is 81%.
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