新型水性自引发光固化体系  

A Novel Self-Initiated Waterborne UV Curable System

作　　者：李丹[1] 郭文迅[1] 高鹏[1] 文安南[1] 

机构地区：[1]湖南大学材料科学与工程学院,湖南长沙410082

出　　处：《石油化工》2013年第4期435-440,共6页Petrochemical Technology

基　　金：国家科技部科技型中小企业技术创新基金项目(09C26214305046)

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,得到不需外加光引发剂的水性自引发光固化体系。利用FTIR,NMR,DSC等方法对该固化体系进行了表征。分析了TBA和SnCl2的用量对不饱和聚酯固化时间的影响。实验结果表明,当n(TBA)∶n(顺丁烯二酸酐)=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涂料;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。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 SnC12 dosages on the curing time of the unsaturated polyester were investigated. The results indicate that under the condition of n（TBA） ： n（maleic anhydride） 1 ： 5.5 and content of SnC12 more than l%（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.

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 

分 类 号：TQ637.83[化学工程—精细化工]