Effect of initiator system on photosensitivity of polyurethane acrylate hybrid uv-curing system

SUN Fang; HUANG Yuli; XIA Lanying

您当前的位置：

首页 >

文章列表页 >

Effect of initiator system on photosensitivity of polyurethane acrylate hybrid uv-curing system

更新时间：2023-03-30

- Effect of initiator system on photosensitivity of polyurethane acrylate hybrid uv-curing system
- Journal of Radiation Research and Radiation Processing Vol. 22, Issue 1, Pages: 19-22(2004)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：
  CLC：
扫描看全文
SUN Fang, HUANG Yuli, XIA Lanying. Effect of initiator system on photosensitivity of polyurethane acrylate hybrid uv-curing system. [J]. Journal of Radiation Research and Radiation Processing 22(1):19-22(2004)
DOI：

SUN Fang, HUANG Yuli, XIA Lanying. Effect of initiator system on photosensitivity of polyurethane acrylate hybrid uv-curing system. [J]. Journal of Radiation Research and Radiation Processing 22(1):19-22(2004) DOI：

摘要

研究了自由基型光引发剂Irgacure651和Irgacure1700分别与阳离子型光引发剂SR-1012的质量二芳基碘鎓盐（SR-1012）组成的复合引发体系的配比及用量，以及它们对聚氨酯丙烯酸酯与三乙二醇二丙烯酸酯（TEGDA）、环氧化合物EPON-812组成的混杂光固化体系感光性能的影响。结果表明， Irgacure1700与SR-1012组成的复合引发体系比Irgacure651与SR-1012组成的复合引发体系引发效果好，体系感度可达2.64 mJ/cm,2,。两种自由基光引发剂配比为2：1时，两种聚合的速率配合较好，体系感度较高，可达6.28 mJ/cm,2,。引发剂用量在4%—6%比较适宜。混杂体系在276nm和333 nm处有响应峰。

Abstract

Cationic photoinitiator(SR-1012) with Irgacure651 and Irgacure1700 were mixed, respectively. The influence of the content and composition of the composite photoinitiator on photosensitivity of the hybrid system composed of PU, triethyleneglycol diacrylic ester (TEGDA) and epoxy compound EPON-812 was studied. The results showed that the hybrid system had higher curing rate when using composite photoinitiator composed of Irgacure1700 and SR-1012 than that of Irgacure651 and SR-1012 and value of sensitivity was 2.64mJ/cm,2,. The cooperation of free radical initiator and SR-1012 offered considerable photosensitive properties, such as curing rate, sensitivity and gel yield, when the weight ratio of free radical initiator to SR-1012 was 2:1 and value of sensitivity was 6.28mJ/cm,2,. It was also found that suitable concentration of the composite initiator was 4-6%(wt). UV spectrum showed absorbance of λ at 276nm and 333nm.

关键词

混杂聚合光固化聚氨酯

Keywords

Hybrid polymerizationUV-curingPolyurethane acrylate

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

STUDY ON THE PHOTOSENSITIZATION OF FREE RADICAL PHOTOINITIATORS ON CATIONIC PHOTOPOLYMERIZATION OF EPOXY POLYSILOXANE

Related Author

No data

Related Institution

Beijing University of Chemical Technology

⁰