双马来酰亚胺改性TDE－85环氧树脂研究  

STUDY ON BISMALEIMIDE MODIFIED TDE-85 EPOXY SYSTEM

作　　者：顾媛娟[1] 梁国正[1] 蓝立文 

机构地区：[1]西北工业大学化工系

出　　处：《高分子材料科学与工程》1996年第2期43-47,共5页Polymer Materials Science & Engineering

摘　　要：采用双马来酰亚胺／二烯丙基苯基化合物改性ＴＤＥ－８５环氧／ＭＮＡ酸酐体系，获得了适于树脂传递模塑（ＲＴＭ）成型的高性能复合材料树脂基体。运用粘度曲线、凝胶特性曲线和差热分析对树脂的工艺性进行了研究。结果表明，树脂的注射温度为６０℃，此时粘度只有０．２４Ｐａ·ｓ，工作期大于１２ｈ。固化树脂的热变形温度为２２４℃，室温及１５０℃下弯曲强度分别为１２４ＭＰａ、７３ＭＰａ，冲击强度为１１．３ｋＪ／ｍ２，文中同时介绍了玻璃布复合材料的性能。A new resin system suitable for resin transfer molding(RTM) has been developed for the manufacture of high performance compositesin aerospace application.It was prepared by using bismaleimide/ diallyl bisphenol compound to modify TDE-85 epoxy/ nadic anhydride. The processing properties of the resin were investigated by viscosity profiles, gel characteristics and differential scanning calorimetry (DSC).Data show that the injection temperature of the resin is 60℃,while the viscosity is only 0.24 Pa·s at that temperature and the pot life at 60℃ is more than 12h. The heat distortion temperature of the cured resin is 224℃,flexural strengths at room temperature and 150℃ are 124 and 73 MPa, respectively, and impact strength is 11.3 kJ/m 2, The properties of glass frabic reinforced composite are also discussed.

关 键 词：双马来酰亚胺 改性 耐热性 TDE-85 环氧树脂 

分 类 号：O633.13[理学—高分子化学]