木质素基环氧树脂热稳定动力学研究  

Study on thermal stability kinetics of lignin based epoxy resin

作　　者：孙琴琴 王一双 陈明强[1,2] 杨忠连[1] Sun Qinqin;Wang Yishuang;Chen Mingqiang;Yang Zhonglian(School of Chemical Engineering,Anhui University of Science and Technology,Huainan 232001;School of Earth Science and Environmental Engineering,Anhui University of Science and Technology,Huainan 232001)

机构地区：[1]安徽理工大学化学与工程学院,淮南232001 [2]安徽理工大学地球与环境学院,淮南232001

出　　处：《化工新型材料》2019年第2期176-179,共4页New Chemical Materials

基　　金：国家自然科学基金(21376007);国家科技支撑计划(2014BAD02B03);安徽省高校省级自然科学研究项目(KJ2016A197)

摘　　要：使用低共熔物(DES)对可再生木质素(LG)进行改性,并将改性木质素(MLG)与环氧氯丙烷(ECH)反应合成木质基环氧树脂(LGEP),并对不同质量比(ECH/MLG=1,5,10,20)合成的LGEP的热稳定动力学进行模拟计算。通过扫描电镜(SEM)、红外光谱(FT-IR)和非等温差示量热(DSC)对LGEP进行测试。结果表明:成功合成环氧树脂,且在ECH/MLG=5时,所得木质基环氧树脂体系最稳定。The lignin(LG)was modified by deep eutectic solution(DES),and the modified lignin(MLG)was reacted with epichlorohydrin(ECH)to synthesize the lignin-based epoxy resins(LGEP)with different mass ratio(ECH/MLG=1,5,10 and 20).The thermal stability kinetics of LGEP was simulated and calculated.The epoxy resin was measured by scanning electron microscope(SEM),fourier transform infrared detector(FT-IR)and non-isothermal differential calorimetry(DSC).The results showed that epoxy resin was successfully synthesized and the lignin-based epoxy resin system was the most stable at ECH/MLG=5.

关 键 词：木质素基环氧树脂 环氧值 热稳定动力学 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]