| 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 |
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| 引用本文： | 孙志英,魏杰.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[J].影像科学与光化学,2004,22(3):218-223. |
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| 作者姓名： | 孙志英 魏杰 |
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| 作者单位： | 北京化工大学, 材料科学与工程学院, 北京, 100029 |
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| 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.
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| 关 键 词： | 量子效率 引发剂 光固化粉末涂料 |
| 收稿时间： | 2003-09-18 |
Apparent Quantum Efficiency Measurement on UV Powder Coating of Two Multi-Photoinitiators |
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| SUN Zhi-ying,WEI Jie.Apparent Quantum Efficiency Measurement on UV Powder Coating of Two Multi-Photoinitiators[J].Imaging Science and Photochemistry,2004,22(3):218-223. |
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| Authors: | SUN Zhi-ying WEI Jie |
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| Institution: | College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China |
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| 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. |
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| Keywords: | quantum efficiency photoinitiator UV curable powder coating |
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