傅立叶红外光谱法研究氰酸酯树脂及其改性体系的固化反应  

STUDY ON THE REACTIVITY OF CYANATE AND MODIFIED CYANATE RESINS SYSTEMS BY FT-IR

作　　者：孟季茹[1] 梁国正[1] 赵磊[1] 

机构地区：[1]西北工业大学化工系,陕西西安710072

出　　处：《高分子材料科学与工程》2003年第2期180-183,共4页Polymer Materials Science & Engineering

摘　　要：借助傅立叶红外光谱对双酚 A型氰酸酯树脂、二月桂酸二丁基锡 /双酚 A型氰酸酯、环氧树脂 /双酚 A型氰酸酯树脂、酚醛环氧 /双马来酰亚胺 /双酚 A型氰酸酯树脂等体系的固化反应进行了在位监控分析 ,着重讨论了各体系的反应性。研究表明 ,未加催化剂的双酚 A型氰酸酯树脂体系固化反应的活化能为 175 .0 k J/ mol,频率因子 A=2 .5 5× 10 14 min-1;采用二月桂酸二丁基锡催化的氰酸酯树脂体系的活化能 Ea=5 1.7k J/ mol,A=6.12× 10 2 min-1;环氧树脂改性的氰酸酯树脂体系的固化反应温度明显降低 ,引入催化剂后转化率也明显提高 ;酚醛环氧树脂 /双马来酰亚胺树脂 /氰酸酯树脂体系具有良好的反应性。The reactions of the cured systems such as bisphenol A cyanate(BCE), dibutyltin dilaurate／BCE, bisphenol A epoxy／BCE and phenol epoxy／BCE have been studied depended on FT-IR. The reactivity of the s ystems has mainly been discussed. The results show that the active energy and th e frequency of contact of the pured cyanate system are 175.0 kJ／mol and 2 .55×1014 min-1 respectively, which are higher than those of the s ystem with catalyst 51.7 kJ／mol, 6.12×102 min-1. The required temperature and active energy of the pure cyanate resin are higher much than mod ified systems by adding catalyst and other resins. And also the modified systems possess rather good properties than pure cyanate resin.

关 键 词：傅立叶红外光谱法 氰酸酯树脂 改性体系 固化反应 研究 双酚A型氰酸酯树脂 二月桂酸二丁基锡 

分 类 号：O632.62[理学—高分子化学] O657.33[理学—化学]