潜伏型环氧树脂固化剂研究进展  

Research Progress of Latent Curing Agent for Epoxy Resin

作　　者：于震 马松琪 刘艳林 汤兆宾 张克维[2] 朱锦 YU Zhen;MA Songqi;LIU Yan-lin;TANG Zhao-bin;ZHANG Ke-wei;ZHU Jin(Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province,Laboratory of Polymers and Com posites,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China;School of Materials Science and Engineering,Taiyuan Universiry of Science and Technology,Taiyuan 030024,China)

机构地区：[1]中国科学院宁波材料技术与工程研究所高分子与复合材料实验室,浙江省生物基高分子材料技术与应用重点实验室,宁波315201 [2]太原科技大学材料科学与工程学院,太原030024

出　　处：《高分子通报》2022年第11期15-35,共21页Polymer Bulletin

基　　金：国家自然科学基金(52073296,51773216);宁波市公益类科技计划项目(202002N3091);中国科学院青年创新促进会人才项目(2018335)。

摘　　要：环氧树脂具有优异的综合性能,潜伏型环氧树脂固化剂与环氧树脂配合后具有良好的贮存稳定性,在胶黏剂、涂料、电子封装和复合材料等领域具有巨大的应用需求和商业价值。潜伏型固化剂的种类很多,按照固化剂主体不同可分为双氰胺、酰肼、酸酐、苯并噁嗪和氨基酸类化合物,咪唑和改性胺类化合物,硼胺络合物与重氮盐、碘鎓盐和锍鎓盐化合物。为了便于指导潜伏型固化剂的设计与使用,本文按照潜伏机理不同将当前报道的潜伏型固化剂分为热溶解型、化学改性型和微胶囊型固化剂三大类,并对其研究进展进行了分类概括与讨论;同时总结了当前评价固化剂潜伏性能的方法;最后对当前潜伏型固化剂的优缺点进行了总体评价,并对潜伏型固化剂的未来发展趋势进行了展望。Epoxy resins possess excellent comprehensive performance. Epoxy systems with latent curing agent have favorable storage stability, and have huge application demand and commercial value in adhesives, coatings, electronic packaging, composite materials and other fields. There are many kinds of latent curing agents. According to the chemical structure, latent curing agents include dicyandiamide, hydrazide, anhydride, benzoxazine and amino acid compounds, imidazole and modified amine compounds, boron amine complex and diazonium salt, iodonium salt and sulfonium salt compounds. In order to guide the design and use of latent curing agents, in this work, the reported latent curing agents are divided into three catalogues according to their different latent mechanisms, namely heat dissolving, chemical modification and microencapsulation, and their research progress is summarized and discussed. Meanwhile, the current evaluation methods of latent performance of curing agent are summarized, including DSC and rheological behavior analysis. Finally, the advantages and disadvantages of the current latent curing agents are evaluated, and the trends of future work are highlighted. Nowadays, the methods for achieving the latent performance are complex, and it’s still difficult to well balance the latent performance and storage stability for the latent systems. In the future, the one-component epoxy systems with long storage life at room temperature, and high curing speed at medium and low temperature, and favorable performance after curing should be focused;and the latent systems combined with other functions such as high performance, toughening, flame retardancy, energy conservation and environment protection should also be the development direction.

关 键 词：潜伏型固化剂 单组分环氧树脂 化学改性型 热溶解型 微胶囊型 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]