认为这些平面氢键可以通过进一步键合来形成硬段微区中的三维氢键。
Three dimensional hydrogen bonding in hard segment domains can be formed by further bonding of the above planar hydrogen bondings.
通过DSC、弯曲实验和力学实验，研究了形状记忆聚氨酯的性能，发现软段高度结晶和硬段聚集形成硬段微区是其具有较好形状记忆性能的必要条件。
It was found that the high crystallinity of the soft segment regions and the formation of hard segment domains are the necessary conditions for polyurethanes with good shape memory behavior.
利用丙烯酸酯改性以及丙烯酸酯-有机硅复合改性明显降低了聚氨酯分子中硬链段的微区结晶程度。
The acrylate modification and acrylate organosiloxane compound modification can obviously decrease the degree of micro crystal in the molecular of polyurethane.
应用推荐