环氧树脂改性氰酸酯树脂体系固化反应动力学  

Study on curing kinetics of epoxy resin mixture modified cyanate ester resin

作　　者：欧秋仁[1] 嵇培军[1] 赵亮[1] 武玲[1] 曹辉[2] 

机构地区：[1]航天特种材料及工艺技术研究所,北京100074 [2]中国航天科工集团科技工程中心,北京100074

出　　处：《热固性树脂》2010年第6期18-20,共3页Thermosetting Resin

摘　　要：采用示差扫描量热法(DSC)研究了JF-45环氧树脂与E-51环氧树脂改性双酚A型氰酸酯树脂体系的固化反应动力学,根据Kissinger方程、Crane方程、Arrhenius方程对固化过程动力学参数进行了求解,建立了固化反应动力学模型。结果表明,改性氰酸酯固化过程存在2个放热峰;第1个放热峰对应的反应表观活化能、指前因子、反应级数和反应速率常数分别为75.192kJ/mol,7.321×107,0.901和7.321×107exp(-9044.022/T);第2个放热峰相应数据分别为83.073kJ/mol、4.986×107、0.911和4.986×107exp(-9991.941/T)。The curing kinetics of JF-45 and E-51 epoxy resins modified bisphenol A cyanate ester resin was studied by differential scanning calorimetry（ DSC）. Curing reaction kinetic parameters were obtained arrording to Kissinger equation,Crane equation and Arrhenius equation. The cure kinetic model of cyanate ester system was established. The results showed that the modified cyanate ester system had two exothermic peaks during the curing process. The apparent activation energy,pre-exponential（A1） ,reaction order factor and curing reaction constant （K1） of the first exothermic peak were 75. 192 kJ/mol,7. 321 × 107,0. 901 and 7. 321 × 107exp（ -9044. 022/ T） ,respectively. The corresponding data of the second exothermic peak were 83. 073 kJ/mol,4. 986 × 107,0. 911,and 4. 986 × 107exp（ -9 991. 941 /T） ,respectively.

关 键 词：双酚A型氰酸酯树脂 环氧树脂 改性 固化反应动力学 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]