欢迎访问《林产化学与工业》,

林产化学与工业 ›› 2004, Vol. 24 ›› Issue (S1): 29-32.

• 研究报告 • 上一篇    下一篇

改性松香脂环基环氧树脂的固化反应特性

孔振武, 黄焕, 周浩   

  1. 中国林业科学研究院 林产化学工业研究所, 江苏 南京 210042
  • 收稿日期:2004-02-13 修回日期:1900-01-01 出版日期:2004-10-20 发布日期:2004-10-20

CHARACTERIZATION OF CURING REACTION OF MODIFIED ROSIN BASED ALICYCLIC EPOXY RESIN

KONG Zhen-wu, HUANG Huan, ZHOU Hao   

  1. Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, China
  • Received:2004-02-13 Revised:1900-01-01 Online:2004-10-20 Published:2004-10-20

摘要: 采用热分析及凝胶时间测定方法研究了以松香为基础的改性脂环基环氧树脂与改性甲基六氢苯酐的固化反应活性;并通过FT-IR光谱定性分析及固化度测定的定量分析方法研究了该环氧树脂与改性液体酸酐体系的固化过程及其反应机理。结果表明,该环氧树脂与改性液体酸酐的固化反应为放热反应,DSC测定的反应热焓为272~335J/g;环氧树脂与改性液体酸酐体系的凝胶时间与环氧树脂的结构与组成、固化温度及促进剂等因素有关;固化反应过程及固化机理与促进剂作用下酸酐固化双酚A型环氧树脂的反应基本相同。

关键词: 松香, 脂环基环氧树脂, 固化反应

Abstract: The activity of curing reaction of modified rosin based alicyclic epoxy resin with modified methyl hexahydrophthalic anhydride was investigated by thermal analysis and gelatin time determination. The curing process and reaction mechanism of this epoxy resin/modified liquid anhydride system were studied by qualitative analysis of FT-IR spectrum and quantitative determination of curing degree. It was shown that curing reaction of this kind of epoxy resin with modified liquid anhydride was an exothermic reaction, and the reaction enthalpy determined by DSC method was 272-335 J/g. The gelation time of this epoxy resin with modified liquid anhydride was related to the chemical structure and the composition of epoxy resin, curing temperature and accelerator. The reaction process and curing mechanism were basically identical to the curing reaction of bisphenol A epoxy resin with anhydride in the presence of accelerator.

Key words: rosin, alicyclic epoxy resin, curing reaction

中图分类号: