摘要
用FTIR和光差扫描量热法Photo-DSC对超支化聚氨酯丙烯酸酯(HBUA)的光固化动力学进行了表征。结果表明,不同固化气氛对HBUA体系的固化速率影响很大,在空气中,HBUA的最大反应速率(Rpmax)和最终碳碳双键转化率(Pf)均比在N2中的相应值低;当光引发剂Darocur1173浓度为4%,HDDA浓度为20%时,HBUA体系具有较快的反应速率及最高的最终碳碳双键转化率,分别为7.25 J/(g.s)和84.5%。
The photo curing kinetics of HBUA was characterized by FTIR and photo-DSC. It was found that the effect of UV-curing atmosphere on polymerization rate of HBUA was remarkable. The maximum polymerization rate （ Rmax ） and terminal conversion （Pf） of HBUA at atmosphere was lower than at N2. When the content of Darocurl173 was 4% and the content of HDDA was 20% ,the HBUA system had higher Rmax of 7.25 J/（ g· s） and the highest Pf of 84.5% ,respectively.
出处
《应用化工》
CAS
CSCD
2009年第10期1413-1416,1430,共5页
Applied Chemical Industry
基金
福建省自然科学基金资助项目(2006J0150)
