月桂醛基曼尼希碱型环氧固化剂研究  

Study on the lauric aldehyde based mannich base type epoxy curing agent

作　　者：易靖 李梅[1,2,3,4,6,5] 夏建陵 许丽娜[1,2,3,4,5] 丁海阳[1,2,3,4,5] 李守海 YI Jing;LI Mei;XIA Jian-ling;XU Li-na;DING Hai-yang;LI Shou-hai(Institute of Chemical Industry of Forestry Products,CAF/Key Lab.of Biomass Energy and Material, Jiangsu Province/National Engineering Lab.for Biomass Chemical Utilization/Key and Lab.on Forest Chemical Engineering,SFA ,Nanjing 210042,China;Institute of Forest New Technology,CAF, Beijing 100091,China;Co-Innovation Center of Efficient Processing and Utilization of Forest Resources,Nanjing Forestry University,Nanjing 210042,China)

机构地区：[1]中国林业科学研究院林产化学工业研究所 [2]江苏省生物质能源与材料重点实验室 [3]国家林业局林产化学工程重点开放性实验室 [4]生物质化学利用国家工程实验室,江苏南京210042 [5]南京林业大学林业资源高效加工利用协同创新中心,江苏南京210042 [6]中国林业科学研究院林业新技术研究所,北京100091

出　　处：《热固性树脂》2019年第1期11-15,共5页Thermosetting Resin

基　　金："十二五"国家科技支撑计划(2015BAD15B04)

摘　　要：以月桂醛(LA),二乙烯三胺(DA)和亚磷酸二乙酯(DP)为原料通过曼尼希反应制得一种新型曼尼希碱类环氧固化剂LADADP,并以LADADP部分替代刚性固化剂1,3-环己二甲胺制备了环氧复合材料。通过红外光谱,核磁共振氢谱分析以及力学和热性能测试对材料的性能进行了研究。结果表明,当LADADP的质量分数为30%时,材料的断裂伸长率从最初的1.15%增加到2.63%。虽然因LADADP的添加会引起热稳定性略微下降,但其主失重阶段的热初始分解温度均在330℃以上,具有优良的热稳定性。The new Mannich base epoxy curing agent LADADP was prepared by using Mannich reaction with lauric aldehyde(LA),diethylenetriamine(DA)and diethyl phosphite(DP)as raw materials. The epoxy composite was prepared by partially replacing the rigid curing agent 1,3-cyclohexanedimethylamine with LADADP. The properties of the material were investigated by infrared spectroscopy,nuclear magnetic resonance analysis,and mechanical and thermal property tests. The results showed that when the mass fraction of LADADP was 30%,the elongation at break of the material was increased from the initial 1.15% to 2.63%. Although the thermal stability was slightly decreased due to the addition of LADADP,the thermal initial decomposition temperature in the main weight loss stage was above 330 °C,and it had excellent thermal stability.

关 键 词：月桂醛 曼尼希碱 环氧固化剂 增韧 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]