Improved adhesion of PMSQ hard coatings on polymer substrates

Springer Science and Business Media LLC - Tập 8 - Trang 779-783 - 2011
Yu-Chih Kao1, Franklin Chau-Nan Hong1
1Department of Chemical Engineering, Center for Micro/Nano Science and Technology and Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, Taiwan, ROC

Tóm tắt

Various surface treatment methods were investigated to improve the adhesion of abrasion-resistant polymethylsilsesquioxane (PMSQ) coatings on the optical resins. The adhesion of PMSQ films was improved on polymethylmethacrylate (PMMA), polycarbonate (PC), and PC/acrylonitrile butadiene styrene (ABS) by pretreating their surface with O2 plasma or chromic acid followed by surface grafting with trimethyl ethoxysilane (TMES). After the O2 plasma and the subsequent TMES treatments, the adhesion of PMSQ coating on PMMA substrate was significantly enhanced by the reduction of the percentage of peeling area from ~100% to <1% in cross cut tests. After the chromic acid and the subsequent TMES treatments of PC and PC/ABS substrates, the adhesion of PMSQ coatings was also significantly enhanced by reducing the percentages of peeling areas from nearly 100% to 50% and <1%, respectively, for PC and PC/ABS. The PMSQ coating might increase the hardness of the polymer by two to three levels.

Tài liệu tham khảo

Menning, M, Oliveira, PW, Schmidt, H, “Interference Coatings on Glass Based on Photopolymerizable Nanomer Material.” Thin Solid Films, 351 (1–2) 99–102 (1999) Schmidt, H, “Multifunctional Inorganic-Organic Composite Sol-Gel Coatings for Glass Surfaces.” J. Non-Cryst. Solids, 178 302–312 (1994) Martinez, U, Matías, MC, Lorenzo, V, de la Orden, MU, “Abrasion Resistance in the Tumble Test of Sol–Gel Hybrid Coatings for Ophthalmic Plastic Lenses.” Mater. Lett., 45 (6) 293–297 (2000) Baude, PF, Ye, C, Tamagawa, T, Polla, DL, “Fabrication of Sol‐Gel Derived Ferroelectric Pb0.865La0.09Zr0.65Ti0.35O3 Optical Waveguides.” J. Appl. Phys., 73 (11) 7960–7962 (1993) Wu, LYL, Tan, GH, Zeng, XT, Li, TH, Chen, Z, “Synthesis and Characterization of Transparent Hydrophobic Sol-Gel Hard Coatings.” J. Sol-Gel Sci. Technol., 38 (1) 85–89 (2006) Baikerikar, KK, Tulchinsky, ML, Argyropoulos, J, “UV Curable, Liquid Diacrylate Monomers Based on (Cis, Trans)-1,3/1,4-Cyclohexanedimethanol.” J. Coat. Technol. Res., 7 (2) 175–188 (2010) Sepeur, S, Kunze, N, Werner, B, Schmidt, H, “UV Curable Hard Coatings on Plastics.” Thin Solid Films, 351 (1–2) 216–219 (1999) Hwang, DK, Moon, JH, Shul, YG, Jung, KT, Kim, DH, Lee, DW, “Scratch Resistant and Transparent UV-Protective Coating on Polycarbonate.” J. Sol-Gel Sci. Technol., 26 (1–3) 783–787 (2003) Guo, YB, Hong, FCN, “Adhesion Improvements for Diamond-Like Carbon Films on Polycarbonate and Polymethylmethacrylate Substrates by Ion Plating with Inductively Coupled Plasma.” Diamond Relat. Mater., 12 (3–7) 946–952 (2003) Yang, CC, Chen, WC, Chen, LM, Wang, CJ, “Characterization of Poly(silsesquioxane) by Thermal Curing.” Proc. Natl. Sci. Counc. ROC(A), 25 (6) 339–343 (2001) Jing, SY, Lee, HJ, Choi, CK, “Chemical Bond Structure on Si-O-C Composite Films with a Low Dielectric Constant Deposited by Using Inductively Coupled Plasma Chemical Vapor Deposition.” J. Korean Phys. Soc., 41 (5) 769–773 (2002) Chai, J, Lu, F, Li, B, Kwok, DY, “Wettability interpretation of oxygen plasma modified poly(methyl methacrylate).” Langmuir, 20 (25) 10919–10927 (2004) De Bruyn, K, Van Stappen, M, De Deurwaerder, H, Rouxhet, L, Celis, JP, “Study of Pretreatment Methods for Vacuum Metallization of Plastics.” Surf. Coat. Technol., 163–164 710–715 (2003)