新型水性自引发光固化体系.pdf

2013年第42卷第4期
PETROCHEMICAL TECHNOLOGY
435
新型水性自引发光固化体系
李丹,郭文迅,高鹏,文安南
溯南大学材料科学与工程学院,湖南长沙410082
摘要]以2,4,6-三溴苯胺(TBA)代替尿素,采用熔融聚合法在反应体系中同时进行N-(2,4,6-三溴苯基)马来酰亚胺
( TBPMI)和不饱和聚酯的合成,得倒不需外加光引发剂的水性自引发光固化体系。利用TIR,NMR,DSC等方法对该固化体系
进行了表征。分析了TBA和SnC2的用量对不饱和聚酯固化时间的影响。实验结果表明
BA):n(顾丁烯二酸酐)=1:5.5
SnCl2用量大于1%(w)(基于TBA与顺丁烯二酸酐的总质量)时,不饱和聚酯的固化时间最短;利用紫外光使该水性自引发光
固化体系固化成膜,所得涂膜力学性能和热稳定性能均良好,并具有适当的降解性,是一种绿色环保型光固化凃料;室内封
闭储存的水性自引发光固化体系的保质期可长达一…年。
关键词]自引发;光固化体系;2,4,6-三溴苯胺;N-(2,4,6-三溴苯基)马来酰亚胺
文章编号11000-8144(2013)04-0435-06
中图分类号]TQ637.83
L文献标志码」A
A Novel Self-initiated Waterborne UV Curable System
Li Dan, Guo Wenxun, Gao Peng, Wen Annan
( College of Materials Science and Engineering, Hunan University, Changsha Hunan 410082, China
I Abstract J With 2, 4, 6-tribromoaniline(TBA)replacing urea, N-2, 4, 6-tribromophenyl
maleimide(TBPMI)and unsaturated polyester were synthesized in a system simultaneously by melt
polymerization. Thus a self-initiated waterborne UV curable system was prepared and characterized
by means of FTIR, NMR and DSC. The influences of TBA and Sncl2 dosages on the curing time
of the unsaturated polyester were investigated. The results indicate that under the condition of
(TBA n(maleic anhydride)1: 5.5 and content of Sncl] more than 1%(w(based on the total
mass of TBA and maleic anhydride), the curing time of the unsaturated polyester was the shortest
After curried by UV, the self-initiated waterborne UV curable system formed film which possesses
good mechanical properties, thermal stability and degradation. The storage time of this self-initiated
waterborne UV curable system could be up to one year if it is sealed and stored indoors
L Keywords J self-initiation; UV curable system; 2, 4, 6-tribromoaniline; N-2, 4, 6-tribromophenyl
maleimide
随着消费者环保意识的增强和世界各环境
20世纪90年代,Hoye等02发现,以顺丁烯二
立法力度的加大,紫外光固化技术因具有节能、高酸酐(MA)为原料合成的聚酯在无引发剂的情况下
效、环境友好及可操作性强等优点,已广泛应用于可实现聚合物的光固化,他们还研究了烷基马来酰
涂料り、油墨、胶黏剂和微电子等领域26。在传亚胺、苯基马来酰亚胺和杂环马来酰亚胺等化合物
统的紫外光固化体系中需要使用小分子引发剂和活对光固化聚酯自引发的影响,但在一个体系中同时
性稀释剂,这些试剂的使用会导致光固化膜中残留
小分子,在生产和使用过程中造成环境污染,并对【[收稿日期12012-09-24:;[修改稿日期!2012-01-10。
人体有一定的伤害。采用水为活性稀释剂的水性自[作者简介」李サ(1986-)?女,山东省泽市人,硕土生
引发光固化涂料由于不使用有机活性稀释剂和光引
电话18273128274,电邮lidan0727の163.com。联系人:郭文迅,
电话13054169873,电郎guowenxun(@I26.com。
发剂,对环境的污染和身体的损害较小1-8,因此「基金项目]国家科技部科技型中小企业技术创新基金项目
已成为一个研究热点?
(09C26214305046)。