Preparation of Nano-silica Modified “Click” Polyurethane with Fluorine-containing Side Chains and Its Application on Fabric Finishing Agent
ZHANG Qiang1, LIU Hongli1, CHEN Yinghao1, LI Xingjian1, ZHANG Yiheng2
1 School of Materials Science and Engineering, Linyi University, Linyi 276000, China 2 School of Chemical and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
Abstract: Polyurethane (PU) containing terminal-alkyne functional groups was prepared by using 4, 4′-dimethylol-1, 4-heptadiyne as a chain extender, and then “Click” PU with fluorine-containing side chains was prepared by grafting 2-azide perfluorooctyl ethyl alcohol ester (Rf-N3) onto the PU via copper-catalyzed 1, 3-dipolar cycloaddition click chemistry reactions between alkynyl groups and azides. Furthermore, “Click” PU with fluorine-containing side chains/nano-silica composite (SiFPU) was prepared by adding hydrophobically modified nano-silica into the “Click” PU matrix. The structure of SiFPU was characterized by FT-IR,1H NMR and EDS. The effects of nano-silica content on the thermal stability and hydrophobicity of SiFPU films were investigated, and the application of SiFPU on fabric finishing agents was researched. The results show that when Rf-N3 accounts for 44wt% of PU resin, the water contact angle of SiFPU increases from 104° to 120° and maximum weight loss temperature (Tmax) of SiFPU increased from 323 ℃ to 348 ℃ as the nano-SiO2 content increases from 0wt% to 2wt% in SiFPU. When the content of nano-SiO2 is 1wt%, the water-repellent property of the fabric treated with 20 g/L SiFPU solution can reach the highest level 6, and the water absorption of the treated fabric is reduced from 72.7% to 6.6%.
1 Kim Y S, Lee J S, Ji Q, et al. Polymer, 2002, 43(25), 7161. 2 Ge Z, Zhang X Y, Dai J B, et al. European Polymer Journal, 2009, 45(2), 530. 3 Wu W L, Zhu Q Z, Qing F L, et al. Langmuir, 2009, 25(1), 17. 4 Rabnawaz M, Liu G J, Hu H. Angewandte Chemie International Edition, 2015, 54(43), 12722. 5 Manvi G N, Singh A R, Jagtap R N, et al. Progress in Organic Coa-tings, 2012, 75(3), 139. 6 Fu H Q, Yan C B, Zhou W, et al. Journal of Industrial and Engineering Chemistry, 2014, 20(4), 1623. 7 Su T, Wang G Y, Hu C P. Journal of Polymer Science Part A: Polymer Chemistry, 2007, 45(21), 5005. 8 Wang L F, Wei Y H. Colloids and Surfaces B: Biointerfaces, 2005, 41(4), 249. 9 Turri S, Levi M, Trombetta T. Journal of Applied Polymer Science, 2004, 93(1), 136. 10 Lim C H, Choi H S, Noh S T. Journal of Applied Polymer Science, 2002, 86(13), 3322. 11 Chen K Y, Ku J F. Macromolecular Chemistry and Physics, 2000, 201(18), 2676. 12 Tan H, Guo M, Du R, et al. Polymer, 2004, 45(5), 1647. 13 Xin H, Shen Y D, Li X R. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2011, 384(1-3), 205. 14 Wang Q Y, Zhang Q H, Zhan, X L, et al. Journal of Polymer Science, 2010, 48(12), 2584. 15 Honda K, Morita M, Sakata O, et al. Macromolecules, 2010, 43(1), 454. 16 Ge Z, Zhang X Y, Dai J B, et al. Journal of Macromolecular Science, Part A Pure and Applied Chemistry, 2008, 46(2), 215. 17 Weng R, Wang C H, Zhang L M, et al. Materials Science Forum, 2009, 620-622, 741. 18 Kolb H C, Finn M G, Sharpless K B. Angewandte Chemie International Edition, 2001, 40(11), 2004. 19 Golas P L, Matyjaszewski K. Chemical Society Reviews, 2010, 39(4), 1338. 20 Hein J E, Fokin V V. Chemical Society Reviews, 2010, 39(4), 1302. 21 Marmur A. Langmuir, 2004, 20(9), 3517. 22 Li X J, Hu J, Sun D X, et al. Journal of Coatings Technology and Research, 2014, 11(4), 517. 23 Fournier D, Du Prez F. Macromolecules, 2008, 41(13), 4622. 24 Morgan A B, Tour J M. Macromolecules, 1998, 31(9), 2857. 25 Knudseny R L, Jensenz B J. High Performance Polymers, 1996, 8(1), 57. 26 Bertini F, Audisio G, Kiji J, et al. Journal of Analytical and Applied Pyrolysis, 2003, 68-69, 61.
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2020, Vol. 34 
