6ZENG M, ZHANG L N, ZHOU Y X. Effects of solid substrate on structure and properties of casting waterborne polyurethane/ carboxymethylchitin films [J]. Polymer, 2004, 45 ( 10): 3535- 3545.
7DANIEL B O, KEVIN J P, WILLIAM L J, et al: Dynamic colloidal processes in waterborne two-component polyurethanes and their effects on solution and film rnorphology[J ]. Polymer, 2005, 46(13) : 4776-4788.
8CHOI H S, KIM Y S, ZHANG Y, et al. Plasma-induced graft co- polymerization of acrylic acid Onto the polyurethane surface [J ]. Surface and Coatings Technology, 2004, 182(1): 55-64.
9KIM B K, SEOJ W, JEONG H M. Morphology and properties of waterborne polyurethane/clay nanocomposites[J]. European Polymer Journal, 2003, 39(1): 85-91.
