Abstract
Surface-modified hexagonal zinc oxide (ZnO) prisms were incorporated into commercial polyurethane (PU) coating. Dip-coated PU/ZnO composite films on polypropylene sheets exhibited a broad dip in ultraviolet (UV) transmittance corresponding to the ZnO band gap. Compared to 5 and 10 wt% loading, optical properties of PU composites were significantly modified by 20 wt% ZnO fillers in terms of the blue shift and splitting of UV peaks with substantially increased absorption. The morphology effect is demonstrated by replacing the hexagonal ZnO with sword-like ZnO. The sword-like ZnO gave rise to a lower UV absorption and the two slope characteristic in small angle X-ray scattering spectrum corresponding to the thin parts at tapered ends. The proposed procedure and materials used in this work are appropriate for economic large-scale production of composites.
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References
Zhou ZW, Chu LS, Hu SC (2006) Microwave absorption behaviors of tetra-needle-like ZnO whiskers. Mater Sci Eng B 126(1):93–96
Guo CQ, Zhu Q, Zheng Z, Wang XL (2007) Tetrapod-shaped ZnO whiskers reinforced polyurethane. J Polym Eng 27(5):357–369
Song HJ, Zhang ZZ, Men XH, Luo ZZ (2010) A study of the tribological behavior of nano-ZnO-filled polyurethange composite coatings. Wear 269(1–2):79–85
Kathalewar M, Sabnis A, Waghoo G (2013) Effect of incorporation of surface treated zinc oxide on non-isocyanate polyurethane based nano-composite coatings. Prog Org Coat 76(9):1215–1229
Vlad S, Tanase C, Macocinschi D, Ciobanu C, Balaes T, Filip D, Gostin IN, Gradinaru LM (2012) Antifungal behavior of polyurethane membranes with zinc oxide nanoparticles. Dig J Nanomater Bios 7(1):51–58
Wang Z, Liu F, Han E, Ke W, Luo S (2009) Effect of ZnO nanoparticles on anti-aging properties of polyurethane coating. Chin Sci Bull 54:3464–3472
Pandey N, Srivastava RK, Prakash SG (2013) Study of dark conductivity and photoconductivity in dysprosium doped zinc oxide synthesized by heat treatment method. Natl Acad Sci Lett 36(5):521–526
Kumar SS, Rao VR, Rao GN (2013) Efficient photocatalytic degradation of Alizarin red S by silver-impregnated zinc oxide. Proc Natl Acad Sci India Sect A Phys Sci 83(4):309–315
Pholnak C, Sirisathitkul C, Danworaphong S, Harding DJ (2012) Sono-synthesized sword-like zince oxide and its use as a filler in polyurethane composites. J Optoelectron Adv Mater 14(5–6):441–447
Skoog DA, West DM (1976) Principles of instrumental analysis. Holt Rinehart and Winston, New York
Haase M, Weller H, Henglein A (1988) Photochemistry and radiation chemistry of colloidal semiconductors. J Phys Chem B 92(2):482–487
Kumari L, Li WZ (2010) Synthesis, structure and optical properties of zinc oxide hexagonal microprisms. Cryst Res Technol 45(3):311–315
Acknowledgments
This work was funded by Walailak University Research Grant (WU53301 and WU57107). We would like to thank the scientific equipment center of Thaksin Univeristy for the access to UV–Vis spectrophotometer and P. Panchawirat of Thailand Center of Excellence in Physics for operating the FE-SEM.
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Pholnak, C., Sirisathitkul, C., Soontaranon, S. et al. UV–Vis Absorption and Small Angle X-ray Scattering Spectra of Commercial Polyurethane Coating Filled with Zinc Oxide. Natl. Acad. Sci. Lett. 39, 125–128 (2016). https://doi.org/10.1007/s40009-016-0424-6
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DOI: https://doi.org/10.1007/s40009-016-0424-6