详细信息
具有动态亚胺键的生物基环氧树脂固化剂的制备及应用
Preparation and properties of bio-based epoxy curing agent containing dynamic imine bonds
文献类型:期刊文献
中文题名:具有动态亚胺键的生物基环氧树脂固化剂的制备及应用
英文题名:Preparation and properties of bio-based epoxy curing agent containing dynamic imine bonds
作者:冯星[1];贾云峰[2];刘育建[1];张衍[1]
机构:[1]华东理工大学材料科学与工程学院,特种功能高分子材料及相关技术教育部重点实验室,上海200237;[2]西安航天复合材料研究所,陕西西安710025
年份:2025
卷号:42
期号:3
起止页码:1
中文期刊名:合成树脂及塑料
外文期刊名:China Synthetic Resin and Plastics
收录:;北大核心:【北大核心2023】;
基金:中央高校基本科研业务费专项资金资助(JKD01241701)。
语种:中文
中文关键词:生物基环氧树脂;固化剂;香草醛;动态亚胺键;降解;回收
外文关键词:bio-based epoxy resin;curing agent;vanillin;dynamic imine bond;degradation;recycling
摘要:以香草醛为原料,合成了含动态亚胺键的生物基环氧树脂固化剂(记作DV),与厚朴酚基环氧树脂(OMEP)反应后,得到了具有动态共价网络结构的生物基环氧树脂固化物(记作OMEP/DV),并研究了其性能。结果表明:OMEP/DV的玻璃化转变温度与弯曲模量分别为223℃,5362 MPa;利用亚胺键的动态可逆特性,OMEP/DV表现出良好的降解性和可回收性;在80℃的盐酸浓度为0.1 mol/L的N,N-二甲基甲酰胺水溶液中,OMEP/DV能够完全降解,且经过多次物理回收后,其初始分解温度与800℃时的残炭率均有所提高。
A bio-based epoxy curing agent(DV)containing dynamic imine bonds was synthesized with vanillin,which reacted with magnolol-based epoxy resin(OMEP)to obtain the bio-based OMEP/DV with dynamic covalent network structure whose properties were observed.The results show that the glass transition temperature and flexural modulus of OMEP/DV are 223℃and 5362 MPa,respectively.The cured resin performs excellently in degradability and recyclability through the dynamic reversible reaction of imine bonds.OMEP/DV can be fully degraded in 0.1 mol/L aqueous solution of HCl and N,N-dimethylformamide at 80℃,and its initial decomposition temperature and carbon residue rate at 800℃are increased after physical recycling multiple times.
参考文献:
正在载入数据...
