Synthesis of Hybrid Sol Based on ZrO<sub>2</sub>-SiO<sub>2</sub> System and their Coating Properties

Lee, Sang-Hoon; Park, Won-Kyu; Lee, Sang-Hoon; Park, Won-Kyu

doi:2004.41.5.349

J. Korean Ceram. Soc. > Volume 41(5); 2004 > Article

Journal of the Korean Ceramic Society 2004;41(5): 349.
doi: https://doi.org/10.4191/kcers.2004.41.5.349

Synthesis of Hybrid Sol Based on ZrO₂-SiO₂ System and their Coating Properties

Sang-Hoon Lee, Won-Kyu Park

Division of Advanced Materials Engineering, Paichai University

ABSTRACT

Organic-inorganic hybrid sol based on ZrO$_2$-SiO$_2$ system was prepared by sol-gel process. Firstly, ZrO$_2$ non-aqueous precursor sol was synthesized and then organosilane compounds which include epoxy silane (GPTS; 3-g1ycidoxypropyl tri-methoxysilane) and acryl silane (ACS; (3-(tri-methoxysilyl)propylmethacrylate)) were added to ZrO$_2$precursor sol for hybridization. Finally, com-mercial silica sol was added to improve the mechanical properties. Synthesized organic-inorganic Zr-hybrid sol was coated on polycarbonate substrate for enhancing it’s mechanical properties, especially hardness. Vicker’s hardness of polycarbonate sub strate was increased from 13.6 to 17.8 MPa and its pencil hardness was increased from 2 to 7 H, respectively, after coating and drying at 10$0^{circ}C$ for 30 min.က@

Key words: Hybrid sol, Non-Aqueous $ZrO_2$ precursor sol, Non-Scratching, Polycarbonate