摘要
综述了可用于UV-LED光固化体系光引发剂的研究进展,包括传统光引发剂及其衍生物(硫杂蒽酮类、二苯甲酮类和酰基膦氧化物)、新型基团的光引发剂(咔唑基、萘酰亚胺基、吩嗪基、苯丙二茂基、咪唑基和三嗪基)以及高分子光引发剂。传统光引发剂的改性和大分子光引发剂的合成可以提高引发剂的稳定性。新型光引发剂的吸收波长与UV-LED光固化的发射波长匹配性较好,但该类光引发剂常需要加入助剂。此外,描述了氧阻聚对光固化体系的影响,指出了目前UV-LED光引发剂存在的不足,并展望了其发展应用前景。
The research progress of photoinitiatios for UV-LED curing system is reviewed.These photoinitiatios include traditional photoinitiators and their derivatives(thioxanenones,diphenylmethyl ketones and acylphosphine oxides),photoinitiators with new groups(carbazolidyl,naphthalimide,phenazinyl,phenylmalinyl,imidazolidyl and triazinyl)and macromolecular photoinitiators.Modification of traditional photoinitiator and synthesis of macromolecular photoinitiator can improve the stability of initiator.The absorption wavelength of the new photoinitiators has a good match with the emission wavelength of UV-LED curing,while such photoinitiators often need to add auxiliary agent.Furthermore,the influence of oxygen inhibition on the photocuring system is described.Finally,the shortcomings of photoinitiators are pointed out and their development and application in the future are prospected.
作者
邓琳
瞿金清
Deng Lin;Qu Jinqing(School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510641,Guangdong,China)
出处
《精细化工》
EI
CAS
CSCD
北大核心
2020年第2期222-230,共9页
Fine Chemicals
基金
国家自然科学基金(21878109)
广东省科技项目(2015B090925006,2016B090930005,2016B030302004).
