详细信息
文献类型:期刊文献
中文题名:聚醚多元醇对环氧树脂的增韧改性
英文题名:Toughening Epoxy Resin with Polyether Polyol
作者:刘诗飞[1];王永三[1];朱麟勇[1];李欣欣[1]
机构:[1]华东理工大学化学与分子工程学院,上海200237
年份:2010
卷号:23
期号:2
起止页码:144
中文期刊名:功能高分子学报
外文期刊名:Journal of Functional Polymers
收录:CSTPCD;;北大核心:【北大核心2008】;CSCD:【CSCD2011_2012】;
语种:中文
中文关键词:环氧树脂;聚醚多元醇;增韧;相分离;冲击强度
外文关键词:epoxy resin; polyether polyol; toughening; phase separation; impact strength
摘要:通过力学性能、热性能以及扫描电镜等方法研究了聚醚多元醇对环氧树脂-酸酐体系的增韧效果。结果表明:聚醚多元醇在环氧固化过程中分相析出,呈现出较好的增韧效果;在环氧-酸酐体系中,大分子量聚醚多元醇的增韧效果不如小分子量的;而由环氧乙烷封端的聚醚多元醇,由于含有与环氧树脂相容的聚环氧乙烷(PEO)链段,分散相与环氧母体间能够形成良好的界面作用,也体现出良好的增韧效果。
Toughening effect of polyether polyol on epoxy resin was analyzed by means of mechanical,thermal,viscosity testing and scanning of electrical microscope.Results show that polyether polyols are phase-separated out during the curing process of epoxy resin.Polyether polyol with relatively low molecular weight shows a better toughening effect than those with high molecular weight.Polyether polyol with end block of PEO,which is compatible with epoxy matrix,also shows remarkable toughening effect(because) of a good interfacial compatibility.
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