形状记忆聚氨酯因具有热致形状记忆特性而引起世界的极大兴趣,自20世纪80年代以来迅速发展成为一种新型的功能材料.本文以1-甲基-2-吡咯烷酮(NMP)为溶剂,采用溶液混合法制备了形状记忆聚氨酯/气相生长碳纤维复合材料薄膜,利用扫描电镜观察了气相生长碳纤维在形状记忆聚氨酯中的分散性,测试分析了加入气相生长碳纤维对形状记忆聚氨酯的热致形状记忆性能的影响.扫描电镜观察显示:气相生长碳纤维含量达到3%(质量分数,下同)时在形状记忆聚氨酯中开始有少量团聚现象,含量达到5%后团聚现象比较明显;形状记忆性能测试发现:加入气相生长碳纤维不同程度的降低了复合材料的热致形状记忆性能,根据对形状记忆聚氨酯中两相结构的相分离程度及软段结晶情况的不同影响而反映为对形状记忆性能的不同影响.
参考文献
| [1] | OTA S .Current status of irradiated heat shrinkable tubing Radiat[J].Physical Chemistry,1981,18:81-87. |
| [2] | HAYASHI S .Room-temperature-functional shape-memory polymers[J].Plastics Engineering,1995,51(02):29-31. |
| [3] | LIANG C;ROGERS C A;MALAFEEW E .Investigation of shape memory polymers and their hybrid composites[J].Journal of Intelligent Material Systems and Structures,1997,8(04):380-386. |
| [4] | MONDAL S;HU J L .Temperature stimulating shape memory polyurethane for smart clothing[J].Indian Journal of Fibre and Textile Research,2006,31(01):66-71. |
| [5] | CHARLESBY A.Atomic Radiation and Polymers[M].New York:Pertgamon Press,1960:198. |
| [6] | CAMPBELL D.Elastic memory composite material:An enabling technology for future furable space structures[A].Austin,Texas,USA,2005 |
| [7] | WACHE H M .Development of a polymer stent with shape memory effect as a drug delivery system[J].Journal of Materials Science:Materials in Medicine,2003,14(02):109-112. |
| [8] | Takahashi T.;Hayashi S.;Hayashi N. .STRUCTURE AND PROPERTIES OF SHAPE-MEMORY POLYURETHANE BLOCK COPOLYMERS[J].Journal of Applied Polymer Science,1996(7):1061-1069. |
| [9] | Bo Sun Lee;Byoung Chul Chun;Yong-Chan Chung;Kyung Il Sul;Jae Whan Cho .Structure and Thermomechanical Properties of Polyurethane Block Copolymers with Shape Memory Effect[J].Macromolecules,2001(18):6431-6437. |
| [10] | Jae Heung Yang;Byoung Chul Chun;Yong-Chan Chung;Jae Hwan Cho .Comparison of thermal/mechanical properties and shape memory effect of Polyurethane block-copolymers with planar or bent shape of hard segment[J].Polymer: The International Journal for the Science and Technology of Polymers,2003(11):3251-3258. |
| [11] | Jin Lian Hu;Feng Long Ji;Yuen Wan Wong .Dependency of the shape memory properties of a polyurethane upon thermomechanical cyclic conditions[J].Polymer international,2005(3):600-605. |
| [12] | Meng QH;Hu JL .Influence of heat treatment on the properties of shape memory fibers. I. Crystallinity, hydrogen bonding, and shape memory effect[J].Journal of Applied Polymer Science,2008(4):2616-2623. |
| [13] | KIM B K;LEE S Y;XU M .Polyurethane having shape memory effect[J].Polymer,1996,37:5781. |
| [14] | LENDLEIN A;KELCH S .Shape-memory polymers[J].Angewandte Chemie International Edition,2002,41:2034. |
| [15] | Meng QH;Hu JL;Zhu Y .Shape-memory Polyurethane/Multiwalled carbon nanotube fibers[J].Journal of Applied Polymer Science,2007(2):837-848. |
| [16] | Yong Zhu,Jin-lian Hu,Kwok-wing Yeung,Hao-jun Fan,Ye-qiu Liu.SHAPE MEMORY EFFECT OF PU IONOMERS WITH IONIC GROUPS ON HARD-SEGMENTS[J].高分子科学（英文版）,2006(02):173-186. |
| [17] | Jinlian Hu;Zhuohong Yang;Lapyan Yeung;Fenglong Ji;Yeqiu Liu .Crosslinked polyurethanes with shape memory properties[J].Polymer international,2005(5):854-859. |
| [18] | Jin-Lian Hu;Subrata Mondal .Structural characterization and mass transfer properties of segmented polyurethane:influence of block length of hydrophilic segments[J].Polymer international,2005(5):764-771. |
| [19] | Meng QH;Hu JL;Zhu Y;Lu J;Liu Y .Morphology, phase separation, thermal and mechanical property differences of shape memory fibres prepared by different spinning methods[J].Smart Materials & Structures,2007(4):1192-1197. |
| [20] | Meng QH;Hu JL;Zhu Y;Lu J;Liu Y .Polycaprolactone-based shape memory segmented polyurethane fiber[J].Journal of Applied Polymer Science,2007(4):2515-2523. |
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