核磁共振法研究核壳型二氧化硅/聚氨酯纳米复合材料中核与壳的键合方式

Bonding Mode Between the Core and the Shell of the Silicon Dioxide/Polyurethane Nanocomposite by Nuclear Magnetic Resonance Method

通过1H-NMR技术研究核壳型SiO2/聚氨酯纳米复合材料中有机相与无机相的反应情况。核磁共振谱图显示,壳材聚氨酯与核材二氧化硅的界面处形成了稳定的氢键,有机相与无机相复合成稳定的核壳结构的粒子。

The reaction extent of organic phase, as well as the degree of hydrolysis and condensation reactions of inorganic phase of polyurethane material, was examined by means of ^1H-NMR. The results show that the hydrogenbond forms between the shell material polyurethane and the core material silicon dioxide. The organic phase and the inorganic phase are compounded to steady particles which have core/shell structure.