Insights into biobased epoxidized fatty acid isobutyl esters from biodiesel:Preparation and application as plasticizer  

作　　者：Xiaojiang Liang Fengjiao Wu Qinglong Xie Zhenyu Wu Jinjin Cai Congwen Zheng Junhong Fu Yong Nie 

机构地区：[1]Biodiesel Engineering Lab of China Petroleum&Chemical Industry Federation,and Zhejiang Province Key Lab of Biofuel,Zhejiang University of Technology,Hangzhou 310014,China [2]Zhejiang Jiaao Enprotech Stock Co.,Ltd,Tongxiang 314000,China

出　　处：《Chinese Journal of Chemical Engineering》2022年第4期41-50,共10页中国化学工程学报（英文版）

基　　金：Financial support provided by the National High-tech Research and Development Program of China(2014AA022103)。

摘　　要：Biodiesel was used to prepare epoxidized fatty acid isobutyl esters(Ep-FABEs)as a biobased plasticizer in this work.Transesterification of biodiesel with isobutanol catalyzed by tetrabutyl titanate was carried out in a gas-liquid tower reactor.The conversion achieved nearly 100%within 5 h under the reaction temperature,the mass ratio of catalyst to fatty acid methyl esters(FAMEs),and isobutanol to FAMEs total molar ratio of 180℃,0.4%(mass),and 5.4:1,respectively.In addition,kinetic model of the transesterification reaction was developed at 150–190℃.The calculated activation energy was 48.93 kJ·mol^(-1).Then,the epoxidation of obtained fatty acid isobutyl esters(FABEs)was conducted in the presence of formic acid and hydrogen peroxide.The Ep-FABEs was further analyzed for its plasticizing effectiveness to replace dioctyl phthalate(DOP)and compared with conventional epoxy plasticizer epoxidized fatty acid methyl esters(Ep-FAMEs).The results indicated that the thermal stability and mechanical properties of PVC films with Ep-FABEs plasticizer were significantly improved compared with those plasticized with DOP.In addition,the extraction resistance and migration stability of Ep-FABEs were better than those of EpFAMEs.Overall,the prepared Ep-FABEs via structural modification of biodiesel proved to be a promising biobased plasticizer.

关 键 词：BIODIESEL TRANSESTERIFICATION Isobutyl esters Epoxidized isobutyl esters Biobased plasticizer 

分 类 号：TQ414[化学工程]