Browse > Article
http://dx.doi.org/10.12925/jkocs.2018.35.3.595

Characterization of PET films coated with organic-inorganic hybrid coating system containing surface modified zirconia  

Lee, Soo (Department of Chemical Engineering, Changwon National University)
Kim, Sang Yup (Department of Chemical Engineering, Changwon National University)
Kim, Young Jun (Department of Chemical Engineering, Changwon National University)
Publication Information
Journal of the Korean Applied Science and Technology / v.35, no.3, 2018 , pp. 595-605 More about this Journal
Abstract
In recent years, researches on organic-inorganic coating films have conducted a nanocomposite system composed of organic resin matrices having excellent flexibility and chemical stability and inorganic materials having excellent mechanical properties. The o-phenylphenoxyethyl acrylate (OPPEA) used as the acrylate monomer has a high refractive index of 1.58, and the bisphenol A ethoxylate diacrylate (BAEDA) has a low refractive index but improves the chemical stability of the organic resin. In addition, zirconia used as an inorganic material exhibits excellent durability and optical properties. In this study, the BAEDA contents in acrylate monomer were controlled to produce a film with suitable optical transparency. And optimum conditions were established by comparing the changes in surface properties of PET films detected with pencil hardness tester, Abbe's refractometer, and UV-vis spectrophotometer. The hydrophobicity and the dispersibility of zirconia in acrylate monomer were much improved after modification with ${\gamma}$-methacryloxypropyltrimethoxysilane (MPS), which is a silane coupling agent. And the existence of ester C=O bond peak at $1716cm^{-1}$ introduced by MPS through FT-IR ATR spectrophotometer confirmed the completion of surface modification of zirconia with MPS. In addition, the presence of silicon atom on the surface modified zirconia was also proved using X-ray fluorescence spectrometer. When the photocurable hybrid coating was prepared by introducing chemically modified zirconia into acrylate monomer, the refractive index of this coated PET film was improved by 1.2%, compared to the only acrylate coated PET film. The homogeneous distribution of zirconia in acrylate coating layer on PET film was also identified through SEM/EDS mapping analysis technique.
Keywords
acrylate; zirconia; acrylsilane; organic-inorganic hybrid coating; UV curing;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 K. G. Sharp, Inorganic/Organic Hybrid Materials, Adv. Mater., 1998, Vol. 10, No. 15, 1243-1248 (1998).   DOI
2 Y. Liu, C. Lu, M. Li, B. Yang, "High refractive index organic-inorganic hybrid coatings with $TiO_2$ nanocrystals", Colloids and Surfaces A Physicochemical and Engineering Aspects, 328(1-3), pp. 67-72 (2008).
3 Y. Y. Yu, H. H. Yu, "High refractive index organic-inorganic composites with $TiO_2$ nanocrystal", Thin Solid Films, Vol. 529, pp. 195-199 (2013).   DOI
4 S. Muhammad, H. Xu, Z. Su, K. Fukuda, R. Kishi, Y. Shigeta, M. Nakano, "A new type of organic-inorganic hybrid NLO-phore with large off-diagonal first hyperpolarizability tensors: a twodimensional approach", Dalton Trans., Vol. 42, pp. 15053-15062 (2013).   DOI
5 K. Arai, T. Mizutani, Y. Kimura, M. Miyamoto, "Unique structure and properties of inorganic-organic hybrid films prepared from acryl/silica nano-composite emulsions", Prog. Organic Coatings, Vol. 93, pp. 109-117 (2016).   DOI
6 K. Studer, C. Decker, E. Beck, R. Schwalm, "Overcoming oxygen inhibition in UV-curing of acrylate coatings by carbon dioxide inerting, Part I", Prog. Organic Coatings, Vol. 48, pp. 92-100, (2003).   DOI
7 Y.-T. Lin, Y.-H. Li, I-A. Lei, C.-Y. Kuo, C. Lee, W.-Y. Chiu, T.-M. Don, "Enhanced reliability of LEDs encapsulated with surface-modified zirconia/silicone hybrids under thermal shock", Materials Chemistry and Physics, Vol. 206, pp. 136-143 (2018).   DOI
8 P.-T. Chung, S.-H. Chiou, C.-Y. Tseng, A. S.-T. Chiang, "Preparation and Evaluation of a Zirconia/Oligosiloxane Nanocomposite for LED Encapsulation", ACS Appl. Mater. Interfaces, Vol. 8, pp. 9986-9993 (2016).   DOI
9 F. Wang, J. Hu, W. Tu, "Study on microstructure of UV-curable polyurethane acrylate films", Prog. Organic Coatings, Vol. 62, pp. 245-250, (2008).   DOI
10 M. Sangermano, B. Voit, F. Sordo, K. J. Eichhorn, G. Rizza, "High refractive index transparent coatings obtained via UV/thermal dual-cure process", Polym., Vol. 49, pp. 2018-2022, (2008).   DOI
11 G. K. Chuah, "An investigation into the preparation of high surface area zirconia", Cat. Today, Vol. 49, pp. 131-139, (1999).   DOI
12 K. Xu, S. Zhou, L. Wu, "Dispersion of ${\gamma}$-methacryloxypropyltrimethoxysilane-functi onalized zirconia nanoparticles in UV-curable formulations and properties of their cured coatings", Prog. Organic Coatings, Vol. 67, pp. 302-310, (2010).   DOI
13 B. Sathyaseelan, E. Manikandan, I. Baskaran, K. Senthilnathan, K. Sivakumar, M. K. Moodley, R. Ladchumananandasivam, M. Maaza, "Studies on structural and optical properties of $ZrO_2$ nanopowder for opto-electronic applications", J. of Alloys and Compounds, Vol. 694, pp. 556-559, (2017).   DOI
14 F. Tariq, "The effect of extended aging on the optical properties of different zirconia materials", J. of Prosthodontic Research, Vol. 61, No. 3, pp. 305-314, (2017).   DOI
15 K. Luo, S. Zhou, L. Wu, "High refractive index and good mechanical property UV-cured hybrid films containing zirconia nanoparticles", Thin Solid Films, Vol. 517, pp. 5974-5980, (2009).   DOI
16 H. S. Lee, H. S. Jeong, J. H. Seo, J. C. Park, "Core-shell nanoparticles", KIC News, Vol. 12, No. 3, pp. 23-36, (2009).
17 T. Mori, Y. Okada, H. Kamiya, "Effect of surface modification of silica particles on interaction forces and dispersibility in suspension", Adv. Powder Tech., Vol. 27, pp. 830-838, (2016).   DOI
18 W. Ran, S. Lin, G. L. Rempel, Q. Pan, "Synthesis and properties of UV curable waterborne polyurethane acrylate nanocomposite films based on the surface modification of ${\gamma}$-$Al_2O_3$", Polym., Vol. 41, No. 3, pp. 385-393, (2017).
19 S. Lee, S. J. Moon, J. J. Park, "Study on the hydrophobic modification of zirconia surface for organic-inorganic hybrid coatings", J. of Kor. Oil Chemists' Soc., Vol. 34, No. 2, pp. 260-270, (2017).
20 J. Jiang, W. Wang, H. Shen, J. Wang, J. Cao, "Characterization of silica particles modified with ${\gamma}$-methacryloxypropyltrimethoxysilane", App. Surf. Science", Vol. 397, pp. 104-111, (2017).   DOI