摘要
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 tensile strength was discussed.Results revealed that existence of the graft copolymer accounted for enhancing interpenetrating effects of the IPN.
出处
《材料研究学报》
EI
CAS
CSCD
1996年第3期313-318,共6页
Chinese Journal of Materials Research
关键词
聚氨酯
环氧树脂
互穿网络
聚合物
polyurethane / epoxy resin IPN phase behavior breaking tensile strength
