文献类型：期刊文献

中文题名：紫外光固化大豆油基丙烯酸树脂的制备与性能研究

英文题名：Preparation and Performance of UV Cured Soybean Oil-Based Acrylate Coatings

作者：高慧芝[1];李茜[1];唐秋雨[1];陈雅华[1];奚桢浩[1,2];赵玲[1,2]

机构：[1]华东理工大学化学工程联合国家重点实验室,上海200237;[2]华东理工大学过程系统工程教育部工程研究中心,上海200237

年份：2019

卷号：35

期号：3

起止页码：242

中文期刊名：化学反应工程与工艺

外文期刊名：Chemical Reaction Engineering and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；

基金：国家自然科学基金(21676083);太仓科技领军人才计划(TCRC201711);中央高校基本科研业务费专项资金(22221817014)。

语种：中文

中文关键词：环氧大豆油;丙烯酸酯;紫外光固化;光引发剂;铅笔硬度

外文关键词：epoxidized soybean oil;acrylate;UV curing;photoinitiatior;pencil hardness

摘要：利用环氧大豆油(ESO)在碱性催化剂作用下的开环酯化反应,合成了不同官能度的系列环氧大豆油丙烯酸酯(AESO),进一步通过自由基光引发剂引发的紫外光固化反应制得了具有优良热稳定性和较强附着力的大豆油基树脂。采用红外光谱(FT-IR)、核磁氢谱(1H NMR)分析了AESO的分子结构,研究了酯化反应温度、反应物配比以及反应时间对AESO产率的影响。结果表明,当在110℃下,环氧基团与丙烯酸物质的量之比为1.00:0.95,反应4 h的产物官能度最高,达到2.90;通过AESO紫外光固化产物链段结构、热稳定性以及铅笔硬度的研究,制备了具有优良的力学性能和热稳定性的AESO基紫外光固化树脂,较优的光固化条件为:引发剂质量分数为3%,固化程序为20%光强预固化20 s,100%光强后固化10 s。
A series of acrylated epoxidized soybean oil(AESO)were synthesized by epoxy soybean oil(ESO)and acrylic acid(AA)via ring opening reaction in the presence of alkaline catalysts and the crosslinking coatings were prepared by ultraviolet curing with free radical photoinitiator.The structures of AESO were characterized by fourier transform infrared spectroscopy(FT-IR),1H nuclear magnetic resonance(1H NMR)and the effects of reaction temperature,reaction time and molar ratio of ESO to AA on the yield of AESO were studied.The results showed that AESO with a functionality of 2.90 was prepared in the following conditions:the molar ratio of epoxy groups to acrylic acid was 1.00:0.95,the reaction temperature was 110℃and the reaction time is 4 h.The pencil hardness test as well as thermogravimetric analysis results of the cured resin showed that crosslinking coatings with good thermal stability could be obtained in the following conditions:the mass fraction of photoinitiator was 3%,pre-curing time was 20 s with 20%light intensity and post-curing time was 10 s with 100%light intensity.