期刊文献+

水性形状记忆聚氨酯的合成及其在织物上的应用 被引量:3

Synthesis of the waterborne shape memory polyurethane and its application in fabric
下载PDF
导出
摘要 聚己内酯二元醇(PCL)为结晶软段,异佛尔酮二异氰酸酯(IPDI)为硬段,合成硬段含量不同的一系列交联型水分散形状记忆聚氨酯(SMPU).通过FTIR、DSC、XRD、透湿性和形状记忆性能测试等,研究了硬段含量对形状记忆聚氨酯(SMPU)结构与性能的影响以及形状记忆聚氨酯在织物涂层上的应用.结果表明:随着硬段含量的提高,聚氨酯的结晶熔融温度升高,结晶度下降,形状回复率先增大再减小.当硬段为28.6%时,形状回复率达到最大为94%.经SMPU处理过的织物随着SMPU硬段含量的增加,透湿量降低;随着温度的升高,透湿量增大.形状回复角较未经处理的织物原样有明显增大. A series of crosslinking waterborne shape memory polyurethanes (SMPUs) with different hard segment contents were prepared using polyeaprolaetone (PCL) as the crystallizable soft segment and isophorone diisocyanate(IPDI) as the hard segment. The effect of hard segment content on the structure and properties of shape memory polyurethane and its application in the treatment of fabric have been studied by FTIR, DSC, water vapor permeability, shape memory performance test and other properties tests. It was found that with increase of hard segment content, the melting temperature of SMPU increased, the crystallinity decreased, the shape recovery rate first increased and then reduced. The result showed that when the hard segment was 28.6%, the shape of the maximum recovery rate was 94%. The fabric treated by SMPU was found that with increase of hard segment content, the water permeability reduced and with the temperature increased, the water permeability increased. The recovery angle of the treated fabric was bigger than the recovery angle of the untreated fabric.
出处 《安徽大学学报(自然科学版)》 CAS 北大核心 2012年第6期97-103,共7页 Journal of Anhui University(Natural Science Edition)
基金 安徽省自然科学基金资助项目(070414193)
关键词 形状记忆 聚氨酯 硬段含量 透湿量 shape memory polyurethane hard segment content water permeability
  • 相关文献

参考文献24

二级参考文献147

共引文献75

同被引文献42

引证文献3

二级引证文献12

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部