%0 Journal Article
%T Structure and property of co--curing reaction product for epoxy and cyanate resin system
环氧树脂与氰酸酯共固化物的结构与性能
%A CHEN Ping TANG Zhongpeng WANG Xiujie JIAN Xigao
%A
陈平
%A 唐忠朋
%A 王秀杰
%A 蹇锡高
%J 材料研究学报
%D 2004
%I
%X The influence of the behavior, mechanism, product structure and relation of structure with properties for co-curing reaction of epoxy resin and cyanate ester system catalyzed by transition metal acetylaceton, etc. was studied. The results show that the accelerator can obviously accelerate the co-curing reaction of the resin system and decrease the cured temperature and curing time. The reactions involved in the co-curing are: cyclodimerization and cyclotrimerization of cyanate, polyether-fication of epoxy group and cyclotrimerization of cyclic dimmer, as well as the formation of oxazolidone rings. In the lack of cyanate functional groups, the main structures of cured compounds are oxazolidone and polyether structure in the cured resin, and the triazine ring structure is of minor importance. In the excess of cyanate functional groups, the main structures are triazine ring and oxazolidone structure in the cured resin, and the polyether structure is of minor importance. The reactive activation energy and frequency factor of the co-curing resin system increase with enhanced concentration of cyanate. The thermal stability and dielectric properties of the cyanate and epoxy resin curing system are also found to increase with enhanced concentrations of cyanate in the same cured condition.
%K organic polymer materials
%K structure and property
%K co-curing reaction
%K epoxy resin
%K cyanate
有机高分子材料
%K 结构与性能
%K 共固化反应
%K 环氧树脂
%K 氰酸酯
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=C101C4C04993B4D94FCD8446E6CBEB3B&aid=88609B3001D37551&yid=D0E58B75BFD8E51C&vid=13553B2D12F347E8&iid=38B194292C032A66&sid=2B25C5E62F83A049&eid=4E6F5C60B72D9B1C&journal_id=1005-3093&journal_name=材料研究学报&referenced_num=6&reference_num=12