新型环氧树脂潜伏性促进剂的合成、表征及性能研究  

Synthesis,Characterization and Properties of Novel Latent Thermal Catalyst for Epoxy Resin

作　　者：刘宇艳[1] 何利娜 万志敏[1] 杜星文[1] 

机构地区：[1]哈尔滨工业大学应用化学系,哈尔滨150001 [2]核工业第八研究所,上海201800

出　　处：《航空材料学报》2008年第1期71-75,共5页Journal of Aeronautical Materials

基　　金：哈尔滨工业大学优秀青年教师培养计划资助项目(HIT.2006.32)

摘　　要：合成了新型环氧树脂潜伏性促进剂三(乙酰乙酸十八酯)铝,采用DSC,FT-IR,H-NMR、元素分析分别对其热分解机理、化学结构、物质纯度进行了表征。研究了以环氧ZH92-21:双酚S:三(乙酰乙酸十八酯)铝=100:3:0.5为配比的树脂体系的固化制度、潜伏性和力学性能,树脂体系的表观粘度在室温储藏7个月后基本没有变化,相分离是其具有优异潜伏性的主要原因。Latent thermal catalysts, aluminum tris（octadecylacetoacetate） was synthesized. The synthesized catalyst fulfills requirements for long storage stability at room temperature and a rapid cure at a moderately elevated temperature in curing epoxy resins. The thermal behavior, the molecular structures, the purity of aluminum compounds were characterized by differential scanning calorimeter （DSC） , FT-IR spectrum, ^1H-NMR spectrum and element analysis. The cure system, thermal latency and mechanical properties of epoxy ZH 92-21/4,4＇- Dihydroxydiphenylsulfone/aluminum tris（octadecylacetoacetate） system were also investigated. The viscosity of the resin system showed little change after 7 months and the phase change of the resin system led to a long shelf life.

关 键 词：环氧树脂 潜伏性固化剂 金属有机铝化合物 合成 

分 类 号：TB324[一般工业技术—材料科学与工程]