文献类型：期刊文献

中文题名：基于大豆油和衣康酸的自修复型紫外光固化涂料

英文题名：Self-Heal UV-Curable Coatings Derived from Soybean Oil and Itaconic Acid

作者：黄佳[1] 张金帅[1] 朱国强[1] 余希希[1,2] 胡云[1] 周永红[1] 刘承果[1]

第一作者：黄佳

机构：[1]中国林业科学研究院林产化学工业研究所,江苏省生物质能源与材料重点实验室,南京210042;[2]南京林业大学理学院,南京210037

年份：2021

卷号：51

期号：10

起止页码：44-53

中文期刊名：涂料工业

外文期刊名：Paint & Coatings Industry

收录：CSTPCD;;北大核心:【北大核心2020】；CSCD:【CSCD_E2021_2022】；

基金：国家自然科学基金资助项目(31822009,31770615);中国林业科学研究院基本科研业务费专项资助(CAFYBB2020QA005)。

语种：中文

中文关键词：紫外光固化涂料;自修复;动态共价键;环氧大豆油;衣康酸;

外文关键词：UV-curable coatings;self-healing;dynamic covalent bond;epoxidized soybean oil;itaconic acid;

分类号：TQ637.83

摘要：本研究首先利用甲基丙烯酸缩水甘油酯改性的衣康酸前聚体(GI)和环氧大豆油(ESO)发生开环反应,合成了一种生物基光敏预聚体(GIESO),将所得的GIESO与不同含量的甲基丙烯酸四氢呋喃酯(THFMA)稀释剂均匀混合,制备了一系列紫外光固化涂料。采用FT-IR、1H NMR和GPC对GIESO预聚体的化学结构进行了表征,考察了树脂的紫外光固化行为、生物基含量以及固化后涂膜的热学性能、机械性能和涂膜性能,并进一步研究了涂膜的自修复性能。结果表明:所得光固化材料具有良好的自修复性能,180℃,60 min内划痕修复率为70.0%~94.3%,生物基含量可达70.9%~78.6%,拉伸强度和玻璃化转变温度分别达到了24.6 MPa和98.3℃。
Development of self-healing UV-curable coatings from bio-renewable resources is of great significance for sustainable development and environmental protection.In this work,a bio-based UV-curable oligomer was firstly synthesized by ring-opening reaction of epoxidized soybean oil.A bio-based photosensitive oligomer(GIESO)was prepared by ringopening reaction of the glycidyl methacrylate-modified itaconic acid precursor(GI)with epoxidized soybean oil(ESO).Its chemical structure was then characterized by FT-IR,1 H NMR,and GPC.Subsequently,a series of UV-curable coatings were prepared by blending of the oligomer with the tetrahydrofurfuryl methacrylate diluent(THFMA).The UV-curing behaviors and bio-based contents of the reins,and ultimate properties such as thermal,mechanical,and film properties of the coatings were studied.Furthermore,dynamic transesterification reactions were activated at elevated temperatures in the presence of a Zinc catalyst,thus self-healing property was further investigated.Notably,the obtained UV-curable coatings demonstrated good self-healing performance(70.0%-94.3%of the scratch recovery at 180℃for 60 min),high bio-based contents(70.9%-78.6%),and high performance(tensile strength and glass transition temperature up to 24.6 MPa and 98.3 oC,respectively).