制备了一系列聚氨酯/环氧树脂互穿网络聚合物PU/EPIPN.由DSC,TMT和动态粘弹仪研究表明,IPN在高温区存在单一的玻璃化转变温度Tg,IPN的相行为与其断裂拉伸强度相关.并确认接枝共聚物的存在增强了IPN的互穿效应.
A series of polyurethane/epoxy resin(PU/EP)IPN were prepared.The IPN exhibited single glass transition temperatures in high temperature regions estimated by DSC,TMA and dynamic viscoelastomer.The correlation of phase behavior of IPN and their breaking ten
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