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Scratch resistance and oxygen barrier properties of acrylate-based hybrid coatings on polycarbonate substrate

  • Catalysis, Reaction Engineering, Industrial Chemistry
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Abstract

Organic/inorganic hybrid coating materials were synthesized using acrylate end-capped polyester, 1,6-hexanediolacrylate, tetraethoxysilane (TEOS), and 3-trimethoxysilylpropylmethacrylate (TMSPM). The hybrid materials were cast onto a polycarbonate (PC) substrate and cured by UV irradiation to give a hybrid film with covalent linkage between the inorganic and the organic networks. The coating layer was characterized by FT-IR and 29Si-NMR, and pencil hardness and oxygen permeation rate of coated films were investigated. The pencil hardness of all samples examined in this study was higher than 1H, whereas that of uncoated PC substrate was 6B. The hardness enhancement after coating may due to incorporation of organic acrylate resin. The oxygen permeability coefficient of the film coated with hybrid material on 3-aminopropyltriethoxysilane (APTEOS) pretreated polycarbonate substrate was 1.67×10−3 GPU, the lowest value in this work, whereas that of uncoated PC substrate was 8.07×10−3 GPU. The lower oxygen permeation rates of these films are attributed to the good adhesion between organic/inorganic hybrid coating layer and PC substrate and a dense structure induced by an increase of network density.

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Authors and Affiliations

  1. Departmet of Chemical Engineering, Kyonggi University, 94-6 Yiui-dong, Youngtong-gu, Suwon, 443-760, Korea

    Sunyoung Park, Jun-Seok Kim & Hyunjoon Kim

  2. Green Engineering Team, Korea Institute of Industrial Technology, 35-3, Hongchon-ri, Ibjang-myeon, Cheonan, 330-825, Korea

    Sungkoo Lee

  3. Department of Applied Chemical Engineering, Dankook University, Anseo-dong, Cheonan, 330-825, Korea

    Kyeong Keun Oh

Authors
  1. Sungkoo Lee
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  2. Kyeong Keun Oh
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  3. Sunyoung Park
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  4. Jun-Seok Kim
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  5. Hyunjoon Kim
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Correspondence to Hyunjoon Kim.

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Lee, S., Oh, K.K., Park, S. et al. Scratch resistance and oxygen barrier properties of acrylate-based hybrid coatings on polycarbonate substrate. Korean J. Chem. Eng. 26, 1550–1555 (2009). https://doi.org/10.1007/s11814-009-0263-y

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  • DOI: https://doi.org/10.1007/s11814-009-0263-y

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