以2,4-甲苯二异氰酸酯(TDI)、聚醚二元醇为主要原料制得-NCO封端的预聚体,再辅以适当的端基稳定剂得到相应的聚氨酯预聚物(PPU),并按一定比例和环氧树脂E-51混合均匀;另用氨乙基氨丙基甲基二甲氧基硅烷、八甲基环四硅氧烷(D4)合成一系列不同相对分子质量的氨基聚硅氧烷,利用多元胺作固化剂,合成一系列氨基聚硅氧烷改性的聚氨酯/环氧共混聚合物.测试了材料的力学性能、吸水率,并用表面水接触角对其表面能进行表征,同时对材料进行了表面电子能谱(ESCA)分析.结果表明:氨基聚硅氧烷/聚氨酯/环氧共混聚合物具有良好的疏水性能和很低的表面能,同时具有较好的力学性能.
参考文献
| [1] | YILGOR I;SHAABAN A K;STECKLE W P.Segmented organosil oxane copol ymers:synthesis of siloxane-urea copolymers[J].Polymer,1984(25):1800-1806. |
| [2] | WANG F;JI Q;MCGRARH J E .Synthesis and characterization of poly(dimethyl siloxane) modified polyurethane[J].Polymeric Preprints(American Chemical Society Division of Polymer Chemistry),1997,38(01):308-309. |
| [3] | Kathleen A. White;Robert S. Ward;Cary A. Wolcott;Karen Wong .Surface Modification of Segmented Polyurethaneureas Via Oligomeric End Groups Incorporated During Synthesis[J].Polymer Preprints,1995(1):99-100. |
| [4] | Ashish Vaidya;Manoj K. Chaudhury .Synthesis and Surface Properties of Environmentally Responsive Segmented Polyurethanes[J].Journal of Colloid and Interface Science,2002(1):235-245. |
| [5] | YU X H;NANGARAJAN M R;GRASEL T G.Polydimethylsioxane-polyurethane elastomer:synthesis and properties of segmented copolymers and related zwitterionomers[J].Polymer Science SERIES B:Polymer Physics,1985(23):2319-2338. |
| [6] | SPINU M;MCGRATH J E.Synthesis of poly(dimethylsiloxane) oligomers with pendant amine groups via coequilibration anionic polymerization reactions[J].Journal of Polymer Science Part A:Polymer Chemistry,1991(29):657-670. |
| [7] | 全一武,倪寒立,张俊生,陈庆民.氨基硅油改性聚丁二烯聚氨酯脲的合成与性能[J].高分子材料科学与工程,2001(05):34-37. |
| [8] | FANG J L;Yu X H .Studies on the gas permeabilties and surface properties of PDMS/PTMO mixed soft segment polyurethane membranes[J].Polymeric Materials Science and Engineering,1998,14(03):115-117. |
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