影像科学与光化学 ›› 2003, Vol. 21 ›› Issue (1): 46-52.DOI: 10.7517/j.issn.1674-0475.2003.01.46

• 研究论文 • 上一篇    下一篇

二茂铁四氟硼酸盐的阳离子光引发性能的研究

王涛1, 黄毓礼2, 马丽君1, 石磊1   

  1. 1. 北京化工大学, 理学院, 北京, 100029;
    2. 北京化工大学, 材料科学与工程学院, 北京, 100029
  • 收稿日期:2002-06-07 修回日期:2002-09-17 出版日期:2003-01-23 发布日期:2003-01-23
  • 通讯作者: 黄毓礼
  • 基金资助:
    国家自然科学基金资助项目(29776002)

STUDY ON THE PHOTOSENSITIVITY OF CATIONIC PHOTOINITIATOR BF4

WANG Tao1, HUANG Yu-li2, MA Li-jun1, SHI Lei1   

  1. 1. School of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P.R. China;
    2. College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P.R. China
  • Received:2002-06-07 Revised:2002-09-17 Online:2003-01-23 Published:2003-01-23

摘要: 制备并研究了[CpFeCp]BF4作为阳离子光引发剂在高压汞灯下引发环氧类预聚物的光引发活性.发现其在紫外及可见光区均有较强吸收(λm=355nm、620nm);对环氧类预聚物,具有优良的光引发活性,感度值可达41.8mJ/cm2,优于其它的阳离子光引发剂;[CpFeCp]BF4的最佳使用浓度为3%(质量分数)左右,由于光照后仍有强后聚合活性,发现其在较低浓度(质量分数1%)引发后放置,仍可使聚合完全;同其它的阳离子光引发剂相比,[CpFeCp]BF4制备简单,非常有应用价值.

关键词: 阳离子光引发剂, [CpFeCp]BF4, 环氧类预聚物, 光引发活性, 后聚合活性

Abstract: The cationic photoinitiator BF4 was synthesized and the photosensitivity in epoxide oligomer was studied. There are two main absorptions above 300 nm (λmax =355 nm and 620 nm) which extend to the visible region, So it can well match with high pressure arc. lamp. The optimized photosensitivity in epoxide is 41.8 mJ/cm2 when irradiated by 365 nm UV ray, which is better than that of other cationic photoinitiators. The best concentration of BF4 in the system of ERL-4221+EPON-812 is 3%-5%. Because of the strong post curing ability, the system of ERL-4221+EPON-812 can obtain complete curing with 1% BF4. BF4 is easier to be synthesized than other cationic photoinitiators,so it will be used widely in the future.

Key words: cationic photoinitiator, BF4, epoxide, photosensitivity, post-curing

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