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ITO transparent insulation film preparation, characterization and performance study

Author: FuXin
Tutor: DuanXueChen；HeLunYing
School: Central South University
Course: Materials Engineering
Keywords: Transparent Insulation Indium tin oxide (ITO) Nano-coatings ITO films
CLC: TB383.2
Type: Master's thesis
Year: 2008
Downloads: 385
Quote: 3
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Abstract


With the growing concern of the community to the problem of energy-saving and environmental protection, architectural glass also proposed new requirements: it is necessary to transparency, but also blocking sunlight radiates heat. Nano-indium tin oxide (ITO) having excellent visible light permeability and can effectively block the infrared, is an ideal transparent insulation material. By slurried nanometer indium tin oxide, transparent insulation film prepared by spin coating, glass transparent insulation can effectively solve the problem, and the process is simple, low cost, can solve the existing insulation glass widespread performance defects on or cost, higher value and broad market prospects. ITO powder as raw material to prepare the ITO ethanol slurry, investigated the dispersing agent, the influence on the stability of the slurry of the ITO content and decentralized manner, and the dispersion time. Matrix to improve the mechanical properties of the ITO coating paint. Using dimethyl dichlorosilane nano-SiO 2 surface lipophilic modified the modified nano SiO 2 particle size distribution uniform dispersion measurement was nano silica average particle diameter of approximately 20nm, by the modified an SiO 2 and the composition of the acrylic resin matrix coating. Ethanol slurry was prepared by the nano-indium tin oxide coatings blended with the above matrix, the system had a good performance of the transparent insulation coatings. Using the spin coating method with a paint coating obtained transparent insulation ITO film. Examines the stability of coatings and coating performance, when the matrix coating ITO ethanol slurry matrix coating has good stability; volume ratio of 1:4 hybrid coatings prepared nano-SiO 2 Weight The ratio is about 2%, the insulation coatings ultrasonic dispersion the 30min after milling dispersion 24h, the dispersing effect of the resultant coating is preferably prepared coating film mechanical properties better. By the results of analysis of the coating mechanical properties, optical properties, and scanning electron microscopy of the transparent insulation film has good mechanical properties and spectral selectivity, the visible light transmittance of 90%, the infrared reflectance of 50%. TEM analysis shows that the indium tin oxide coating of nano particle size is less than 50nm, and uniformly distributed. Insulation effect using self test means the insulating effect of the transparent insulation coatings were measured, The results show that: the ITO film has a significant thermal insulation effect, under the infrared light irradiation, the housing temperature of the transparent insulation glass and blank glass the casing between the temperature difference between the temperature up to 12.2 ° C.

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CLC: > Industrial Technology > General industrial technology > Materials science and engineering > Special structural materials
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