Abstract
UV-curable hyperbranched polyurethane acrylate-polyurethane diacrylate/SiO2 dispersion (HBPUA-PUDA/SiO2) was prepared with isophorone diisocyanate (IPDI), hyperbranched polyester Boltorn H20 (H20), hydroxy-ethyl acrylate (HEA), polyethyleneglycol (PEG-200) and nano-SiO2. The UV curing kinetics of the films was investigated by FTIR. The results show that the curing speed of the films increases with the adding of nano-SiO2 and decreases with the adding of PUDA due to the slower chain movement. The thermal stability of the HBPUA-PUDA/SiO2 films was studied by using thermogravimetric analysis coupled with Fourier transform infrared spectroscopy (TGA/FTIR). The results show that all films exhibit two degradation stages located at about 320 and 440 °C corresponding to the degradation for hard segments of urethane-acrylate and the degradation for soft segment and polyester core. In addition, the results from the analysis of TGA/FTIR also indicate that the decomposition temperature of HBPUA-PUDA/SiO2 film is 15 °C higher than that obtained for pure polymer. The degradation mechanism was proposed according to TGA/FTIR results.
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References
NEBIOGLU A, SOUCEK M D. Optimization of UV curable acrylated polyester-polyurethane/polysiloxane ceramer coatings using a response surface methodology [J]. Coatings Technology and Research, 2006, 3(1): 61–68.
HE Jian-yun, ZHOU Liang, SOUCEK M D. UV-curable hybrid coatings based on vinyl functionalized siloxane oligomer and acrylated polyester [J]. Journal of Applied Polymer Science, 2007, 105(4): 2376–2386.
PICHAVANT L, COQUERET X. Optimization of UV-curable acrylate-based protective coating by experimental design [J]. Progress in Organic Coatings, 2008, 63: 55–62.
DECKER C. Photoinitiated crosslinking polymerization [J]. Progress in Polymer Science, 1996, 21: 593–650.
KIM Y H. Hyperbranched polymers 10 years after [J]. Journal of Polymer Science Part A: Polymer Chemistry, 1998, 36(11): 1685–1698.
LIN De, KOU Hui-guang, SHI Wen-fang. Photopolymerizaton of hyperbranched aliphatic acrylated poly (amide ester). II. Photopolymerization kinetics [J]. Journal of Applied Polymer Science, 2001, 82(7): 1637–1641.
ASIF A, HU Li-hua, SHI Wen-fang. Synthesis, rheological, and thermal properties of waterborne hyperbranched polyurethane acrylate dispersions for UV curable coatings [J]. Colloid Polymer Science, 2009, 287(9): 1041–1049.
TASIC S D, BOZIC B, DUNJIC B. Synthesis of new hyperbranched urethane-acrylates and their evaluation in UV-curable coatings [J]. Progress in Organic Coatings, 2004, 51: 321–328
KOU Hui-guang, ASIF A, SHI Wen-fang. Photopolymerizable acrylated hyperbranched polyisophthalesters used for photorefractive materials I. Synthesis and characterization [J]. European Polymer Journal, 2002, 38(10): 1931–1936.
WANG Sheng-jie, FAN Xiao-dong, KONG Jie, LU Jian-ren. Synthesis, characterization and UV curing kinetics of hyperbranched polysiloxysilanes from A2 and CB2 type monomers [J]. Polymer, 2009, 50(15): 3587–3594.
MISHRA S, MISHRA A K, RAJU K V S N. Synthesis and property study of UV-curable hyperbranched polyurethane acrylate/ZnO hybrid coatings [J]. European Polymer Journal, 2009, 45(3): 960–966.
KUMARI S, MISHRA A K, CHATTOPADHYAY D K, RAJU K V S N. Synthesis and characterization of hyperbranched polyesters and polyurethane coatings [J]. Journal of Polymer Science Part A: Polymer Chemistry, 2007, 45(13): 2673–2688.
LIN Jin-na, HOU You-jun, ZENG Xing-rong. The stability of organic silicone/SiO2 hybrid coating by sol-gel process [J]. Polymer Materials Science & Engineering, 2007, 33(2): 128–130. (in Chinese)
SIEGLER M V S, BURROWS M. Thermal degradation of polyurethanes investigated by direct pyrolysis in the mass spectrometer [J]. Macromolecule Chemistry, 1980, 181(10): 2161–2173.
COUTINHO F, DELPECH M, ALVES T, FERREIRA A. Degradation profiles of cast films of polyurethane and poly (urethane-urea) aqueous dispersions based on hydroxyl-terminated polibutadien and different diisocyanate [J]. Polymer Degradation and Stability, 2003, 81(1): 19–27.
BERTA M, LINDSAY C, PANS G, CAMINO G. Effect of chemical structure on combustion and thermal behavior of polyurethane elastomer layered silicate nanocomposites [J]. Polymer Degradation and Stability, 2006, 91(5): 1179–1191.
MOON S Y, KIM J K, NAH C, LEE Y S. Polyurethane/montmorillonite nanoorganoclay hybrid as chain extenders [J]. European Polymer Journal, 2004, 40(8): 1615–1621.
PETROVC Z S, ZAVARGO Z, FLYN J H, MACKNIGHT W J. Thermal degradation of segmented polyurethanes [J]. Journal of Applied Polymer Science, 1994, 51(6): 1087–1095.
ORZESKO A, KOLBRECKI A. Thermal degradation of polyurethanes. Model compounds [J]. Journal of Applied Polymer Science, 1980, 25: 2969–2973.
GRASSIE N, ZULFIQAR M. Thermal degradation of the polyurethane from 1,4-butanediol and methylene bis (4-phenyl isocyanate) [J]. Journal of Polymer Science, Polymer Chemistry Ed, 1978, 16: 1563–1574.
HERRERA M, MATUSCHEK G, KETTRUP A. Thermal degradation of thermoplastic polyurethanes elastomers (TPU) based on MDI [J]. Polymer Degradation and Stability, 2002, 78(2): 323–331.
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Gao, Qz., Li, Hq. & Zeng, Xr. UV-curing of hyperbranched polyurethane acrylate-polyurethane diacrylate/SiO2 dispersion and TGA/FTIR study of cured films. J. Cent. South Univ. Technol. 19, 63–70 (2012). https://doi.org/10.1007/s11771-012-0973-x
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DOI: https://doi.org/10.1007/s11771-012-0973-x