Preparation and relative properties of dope-dyed polyurethane modified by β-cyclodextrin
Preparation and relative properties of dope-dyed polyurethane modified by β-cyclodextrin
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DOI：
10.1016/j.dyepig.2016.02.011
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发表时间：
2016-06
影响因子：
4.5
通讯作者：
Ting Wan;Dajun Chen;Xue Bai
中科院分区：
文献类型：
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作者：
Ting Wan;Dajun Chen;Xue Bai
本文采用原液染色法制备聚氨酯/β-环糊精/分散橙31溶液。将溶液流延成薄膜。通过 FTIR、紫外可见光谱、机械测试、DMA 和 TGA 研究了薄膜的结构和性能表征。结果表明，原液染色的聚氨酯具有良好的染色牢度、较高的机械性能和热性能，这可能归因于β-CD与聚氨酯之间存在氢键。流变测试结果表明原液染色溶液具有假塑性非牛顿行为，非牛顿指数随温度升高而增大。
In this paper, dope dyeing method was adopted in preparation of polyurethane/β-cyclodextrin/disperse orange 31 solutions. The solutions were cast into films. Characterizations of the structure and properties of films were investigated by FTIR, UV–vis spectra, mechanical test, DMA and TGA. The results revealed that the dope-dyed polyurethanes had good dye fastness, increased mechanical and thermal properties, which could be ascribed to the existence of hydrogen bonding between β-CD and polyurethane. The results of rheological measurements showed that the dope-dyeing solution had a pseudo-plastic non-Newtonian behavior and the non-Newtonian Index increased with increasing of temperature.