影像科学与光化学 ›› 2004, Vol. 22 ›› Issue (3): 218-223.DOI: 10.7517/j.issn.1674-0475.2004.03.218

• 研究简报 • 上一篇    下一篇

光固化粉末涂料中两种复合光引发剂表观量子效率的测定

孙志英, 魏杰   

  1. 北京化工大学, 材料科学与工程学院, 北京, 100029
  • 收稿日期:2003-09-18 修回日期:2004-01-12 出版日期:2004-05-23 发布日期:2004-05-23
  • 通讯作者: 魏杰,E-mail:weij@public.bta.net.cn.

Apparent Quantum Efficiency Measurement on UV Powder Coating of Two Multi-Photoinitiators

SUN Zhi-ying, WEI Jie   

  1. College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
  • Received:2003-09-18 Revised:2004-01-12 Online:2004-05-23 Published:2004-05-23

摘要: 采用动力学分析方法,测定了几种不同配比光固化粉末涂料引发剂的紫外吸收光谱,并由此进行了量子效率的测定.据此可比较不同引发体系的引发效率.文中详细介绍了计算量子效率的过程.结果表明,不同的引发剂体系不同的配比,其引发效率可相差2—3倍.

关键词: 量子效率, 引发剂, 光固化粉末涂料

Abstract: The ultraviolet absorption spectrum of several photoinitiators with different ratio used in UV powder coating was determined.In virtue of kinetics analytical method,the quantum efficiency of different systems was studied correspondingly.The process of quantum efficiency calculation was introduced in detail.The results showed that the system with different photoinitiators of different ratio had different quantum efficiency,and the result might vary 2-3 times when the ratio was different.The quantum efficiency of system Irgacure2959/Irgacure819 was higher when the ratio were (1:2) and 7:3.This meant at this time the photoinitiators were much more active and their initiator efficiency was higher.The result could act as an important guide to the UV curable powder coating study.

Key words: quantum efficiency, photoinitiator, UV curable powder coating

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