Research on the Ring-Opening Polymerization Reaction of 3,4-Dihydro-1,3-Benzoxazine Resin

李玲; 董风云; 李莹; 高永忠

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Research on the Ring-Opening Polymerization Reaction of 3,4-Dihydro-1,3-Benzoxazine Resin

更新时间：2026-09-14

- Research on the Ring-Opening Polymerization Reaction of 3,4-Dihydro-1,3-Benzoxazine Resin
- 3,4-二氢-1,3-苯并恶嗪开环聚合反应的研究
- Issue 4, Pages: 356-360(2008)
- 作者机构：
  
  1. 中北大学材料科学与工程学院
  2. 中国兵器工业集团第五三研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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李玲, 董风云, 李莹, et al. Research on the Ring-Opening Polymerization Reaction of 3,4-Dihydro-1,3-Benzoxazine Resin[J]. 2008, (4): 356-360.
DOI：

李玲, 董风云, 李莹, et al. Research on the Ring-Opening Polymerization Reaction of 3,4-Dihydro-1,3-Benzoxazine Resin[J]. 2008, (4): 356-360. DOI：

摘要

采用动态差示扫描量热法(Differential Scanning Calorimetry

DSC)技术分析研究了3

4-二氢-1

3-苯并恶嗪开环聚合反应过程

并对固化树脂的力学性能进行了研究.结果表明:3

4-二氢-1

3-苯并恶嗪开环聚合反应过程中吸热和放热的共同作用使得开环聚合反应在220℃~271.7℃范围内有一个平缓的放热峰

峰顶温度为235.5℃

固化反应为1.08级反应

反应活化能为72.6 kJ/mol.3

4-二氢-1

3-苯并恶嗪的固化工艺为190℃/1 h+200℃/2 h

后处理工艺为220℃/2 h.固化树脂的弯曲强度为84.3 MPa

冲击强度为9.4 kJ/m2.

Abstract

The ring-opening polymerization reaction of 3

4-dihydro-1

3-benzoxazine(DB) resin was researched by means of differential scanning calorimetry(DSC)

and the properties of cured resin were investigated.The result shows that: there is a wide endo reaction peak from 220 ℃ to 271.7 ℃ for the DB resin and the top of the peak is at 235.5 ℃.The reaction energy of the DB resin is 72.6 kJ/mol and the reaction lever is 1.08.Reasonable cure technology is at 190 ℃/1h+200 ℃/2h

and post cure technology is at 220 ℃/2h.The flexural strength of the cure resin is 84.3 MPa

and the impact strength of the cure resin is 9.4 kJ/m2.

关键词

Keywords

references

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顾宜.苯并恶嗪树脂一类新型热固性工程塑料[J].热固性树脂,2002,17(2):32.Gu Yi.Benzoxazing resin A new kind of thermoseting engineering plastics[J].Thermoseting Resin,2002,17(2):32.(in Chinese)

Ishida H,Allen D J.Physical and mechanical characterization of near-zero shrinkage polybenzoxazines[J].J PolymSci,Part B:Polym Physical,1996,34:1019-1020.

顾宜,鲁在君,谢美丽,等.开环聚合酚醛树脂基复合材料的研究MDAPF1-EGF玻璃布层压板的研制[J].工程塑料应用,1995(2):1-5.Gu Yi,Lu Zaijun,Xie Meili,et al.Study on the open-loop polymerized phenolic-basis composite development ofglass-cloth laminate MDAPF1-EGF[J].Engineering Plastics Application,1995(2):1-5.(in Chinese)

于伯龄.实用热分析技术[M].北京:纺织工业出版社,1990.

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