Bright prospects for the development of new solar coatings

Solar paint is mainly used for building insulation, absorption is used for building insulation and solar energy collection and application. In recent years, in the field of new energy development, our scientists do have a lot of research results, such as data furnaces, power generation shoes and artificial leaves to generate electricity and so on, but the results, a lot of things are still not commercially feasible, let these things really into our daily life will take some time.
experts, solar paint on the current level of science and technology can be divided into two types, namely, solar paint mainly by the launch of solar paint and absorption of solar paint
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. Reflective solar coatings are used to cool down by adjusting the absorption radiation ratio of the coating. Absorption radiation ratio refers to the absorption coefficient α and its thermal emission coefficient ε ratio, the smaller the α/ε ratio, the greater the degree of cooling, the study of reflective solar paint is through the pigment and film-forming material selection to adjust the α/ε value.
experts, reflective solar coating all resins should have the standard performance of the outer wall coating substrate, but also should choose a good performance of UV-resistant resin, acrylic resin has a good weather resistance, UV degradation and photoresistability, is currently used in the outer wall paint more of a resin, because it has good physical properties, smooth surface tough, water resistance, with excellent gloss hold, non-fading, non-powdering, strong chemical resistance. However, the paint coating resistance heat is not good, easy to stick after heat, resulting in a decrease in coating resistance, as a reflective solar coating base is not ideal, so choose modified acrylic resin. Silicone resin has good heat resistance, weather resistance, photo protection, pigment powder resistance and UV degradation resistance, just for acrylic resin change.
is suitable for acrylic resin modified silicone resin ethyl (or methoxy) silicone low-molecular polymer, this material contains the active hydrogenic group of silicone low-molecular polymer, with hydroxyl-containing acrylates resin with solvent method for thermal shrinkation and polymerization, made of silicone modified acrylic resin, with this modified resin as a reflective solar coating base effect.
absorbs solar paint. According to experts, an Australian scientist named Mirce has developed a coating that can absorb solar energy effectively. The first layer of the coating is an anti-sunlight reflective layer made of silicon oxide, which absorbs only non-reflective sunlight from the paint and prevents heat loss. The second layer is a metal ceramic layer that absorbs sunlight heat. The third layer is a metal layer with good thermal conductivity. The three layers have a total thickness of only 100 nanometers, and after experiments, the new coating can convert 98% of the sunlight received into thermal energy, and the total efficiency of thermal energy into electricity energy reached more than 20%.
researchers are working on a new type of solar coating: a team from the University of Notre Dame has published their latest results, a cheap solar cell coating that can use semiconductor nanoparticles to generate energy. The principle of this solar paint is to incorporate quantum dots, nanoparticles that generate electricity, into a coatable mixture.
experts, that is, titanium dioxide nanoparticles, coated with cadmium sulfide or cadmium selenium, these particles will be suspended in the water alcohol mixture, forming a paste mixture. The researchers say the fumes can be applied to any conductor's surface to generate electricity, and that the entire process does not require any special equipment to collect energy. The new material, developed by the University of Notre Dame, is much cheaper to produce than commercial silicon solar cells, but the U.S.-China problem is that its photoelectrical conversion efficiency is only 1 percent, far less than 10 to 15 percent of solar cells, and the researchers say the potential for the new material will be limitless if it is addressed to find ways to improve conversion efficiency.
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