文章摘要
李翠华,周宏勇,王家喜.桐油基光引发剂的制备及性能研究[J].精细化工,2018,35(12):
桐油基光引发剂的制备及性能研究
Preparation and Properties of Tung Oil - based Photoinitiator
投稿时间:2018-01-31  修订日期:2018-05-23
DOI:
中文关键词: 桐油  Diels-Alder  光引发剂  自由基聚合  紫外光固化
英文关键词: Tung oil  Diels-Alder  Photoinitiator  Radical polymerization  UV curable
基金项目:
作者单位E-mail
李翠华 河北工业大学 2551539607@qq.com 
周宏勇 河北工业大学  
王家喜 河北工业大学 wangjiaxi@hebut.edu.cn 
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中文摘要:
      桐油(TO)、桐酸(TA)与马来酸酐(MA)经Diels-Alder反应,合成桐油酸酐(TOM1∽TOM3)及桐酸酸酐(TAM)。在三乙胺的催化下,TOM、TAM分子中酸酐分别与Irgacure2959的羟基反应,合成了四种裂解型光引发剂(TOMG1∽TOMG3,TAMG)。用红外光谱、核磁共振氢谱及高分辨质谱表征引发剂结构,利用紫外可见光谱研究引发剂的光分解过程,用实时红外光谱研究引发剂引发1,6-己二醇二丙烯酸酯(HDDA)的聚合过程。结果表明,相对于Irgacure2959及合成的桐油基光引发剂,TOMG3光引发性能最优。以HDDA、 PUA及TOMG3按质量比46:46:8复配的胶液(有效光引发剂基团的含量为2.14 wt%)在28mW/cm2 紫外光照下,胶膜的光固化表干时间为60s,凝胶率96%,固化膜硬度6H,柔韧性5mm,对玻璃的附着力0级。
英文摘要:
      Tung oil anhydrides(TOM1∽TOM3)and tung acid anhydrides were synthesized via the Diels-Alder reaction of tung oil、tung acid with maleic anhydride (MA).Under the catalysis of triethylamine, TOM and TAM molecules were reacted with the hydroxyl groups of Irgacure2959 to produce four photo-cleavage photoinitiators (TOMG1∽TOMG3, TAMG).The structure of initiator was characterized by FT-IR and 1H NMR spectroscopy. The Photo bleach of prepared photoinitiator was analyzed by UV visible spectroscopy. The photopolymerization dynamics of 1, 6-hexanediol diacrylate initiated by prepared photoinitiator or Ingancure2959 were studied by real-time FT-IR technology. The results show that TOMG3 has the best photo initiated performance with respect to Irgacure2959 and the synthesized tung oil-based photoinitiators. The UV curing gum of HDDA,、PUA and TOMG3 in a mass ratio of 46: 46: 8 (effective photoinitiator group content 2.14 wt%) were cured under irradiation of 28mW/cm2UV lamps in 60 seconds with gel rate of 96%. The hardness and flexibility of curing film was 6H and 5mm, respectively. The adhesion to the glass was zero level.
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