Photovoltaic white adhesive film
A white, adhesive film technology, used in photovoltaic power generation, adhesives, films/sheets without carriers, etc., can solve the problems of high price, increase in cost, and few research results, and achieve easy absorption, multiple light angles, and high power gain. effect of effect
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Embodiment 1
[0028] A photovoltaic white adhesive film, which is composed of a white adhesive film reflective layer I and a white adhesive film reflective layer II, wherein the reflective layer I is composed of two white adhesive films: the main material of one layer is white EVA, titanium The amount of white powder added is 30% (percentage by weight, the same below), and the weight per square meter is 40 grams; the main material of the other layer is white PE, and the amount of titanium dioxide added is 25%, and the weight per square meter is 40 grams; The co-extrusion method is set together (the two raw materials are respectively melted and stirred by the screw, and co-extruded to form a film at 160-170 ° C), the reflectivity of the co-extruded film (reflective layer I) is 90.8%, and the thickness is 76 microns. The main raw material of the reflective layer II is white EVA, the addition amount of hollow glass microspheres is 1%, the weight per square meter is 300 grams, and the reflectivi...
Embodiment 2
[0030] A photovoltaic white adhesive film, which is composed of a white adhesive film reflective layer I and a white adhesive film reflective layer II, wherein the reflective layer I is composed of two white adhesive films: the main material of one layer is white EVA, titanium The amount of white powder added is 40%, and the weight per square meter is 30 grams; the other layer is a white PET film, the amount of titanium dioxide added is 15%, 18 grams per square meter, and the white EVA film is set on the white PET film by coating. Finally, the reflectance of the reflective layer I is 81%, and the thickness is 49 microns. Reflective layer II is a white EVA film, the addition of titanium dioxide is 2.4%, the weight per square meter is 332 grams, and the reflectivity is 78%. The reflective layer I is directly laid on the reflective layer II (the white PET film is in contact with the reflective layer II), and the two reflective layers are combined into one by means of the pressure...
Embodiment 3
[0032] A photovoltaic white adhesive film, which is composed of a white adhesive film reflective layer I and a white adhesive film reflective layer II, wherein the reflective layer I is composed of two white adhesive films: the main material of the first layer is white EVA, The addition of titanium dioxide is 30%, and the weight per square meter is 40 grams; the main material of the second layer is white EVA, and the addition of titanium dioxide is 30%, and the weight is 40 grams per square meter; the two layers of film are set together by co-extrusion (The two raw materials are melted and stirred by the screw respectively, and co-extruded to form a film at 160-170° C.). The reflectivity of the co-extruded film (reflection layer I) is 91%, and the thickness is 74 microns. The main raw material of the reflection layer II is white EVA, the addition amount of hollow glass microspheres is 7%, the weight per square meter is 300 grams, and the reflectivity is 28%. The reflective lay...
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