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http://dx.doi.org/10.9713/kcer.2015.53.6.762

Preparation of Hard Coating Films with High Refractive Index from Titania Nanoparticles  

Kim, Nam Woo (Department of Chemical and Biochemical Engineering, Konyang University)
Ahn, Chi Yong (Department of Chemical and Biochemical Engineering, Konyang University)
Song, Ki Chang (Department of Chemical and Biochemical Engineering, Konyang University)
Publication Information
Korean Chemical Engineering Research / v.53, no.6, 2015 , pp. 762-769 More about this Journal
Abstract
The titania ($TiO_2$) nanoparticles with a diameter 2?3 nm were synthesized by controlling hydrolysis of titanium tetraisopropoxide (TTIP) in acid solution. Organic-inorganic hybrid coating solutions were prepared by reacting the titania nanoparticles with 3-glycidoxypropyl trimethoxysilane (GPTMS) by the sol-gel method. The hard coating films with high refractive index were obtained by curing thermally at $120^{\circ}C$ after spin-coating the coating solutions on the polycarbonate (PC) sheets. The coating films showed high optical transparency of 90% in the visible range and exhibited a pencil hardness of 2H. Also, the refractive index at 633 nm wavelength of coating films enhanced from 1.502 to 1.584 as the weight content of titania nanoparticles in the coating solutions increased from 4% to 25%.
Keywords
Organic-Inorganic Hybrid Coating Solutions; Hard Coating Films; Titania Nanoparticles; 3-Glycidoxypropyl Trimethoxysilane; High Refractive Index; Sol-Gel Method;
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Times Cited By KSCI : 3  (Citation Analysis)
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