多酚活性酯固化环氧树脂的制备及其介电性能研究  

Preparation of Polyphenol-activated Ester-cured Epoxy Resins and Study of Their Dielectric Properties

作　　者：朱有为 梁利岩[1,2,5] 王定松 张金艳 秦静静 李婉妍 刘斌 ZHU Youwei;LIANG Liyan;WANG Dingsong;ZHANG Jinyan;QIN Jingjing;LI Wanyan;LIU Bin(Guangzhou Institute of Chemistry,Chinese Academy of Sciences,Guangzhou 510650,China;University of Chinese Academy of Sciences,Beijing 100049,China;CAS Engineering Laboratory for Special Fine Chemicals,Guangzhou 510650,China;CASH GCC Shaoguan Research Institute of Advanced Materials,Nanxiong 512440,China;CASH GCC(Nanxiong)Research Institute of Advanced Materials Co.,Ltd.,Nanxiong 512400,China)

机构地区：[1]中国科学院广州化学研究所,广东广州510650 [2]中国科学院大学,北京100049 [3]中国科学院新型特种精细化学品工程实验室,广东广州510650 [4]国科广化韶关新材料研究院,广东南雄512440 [5]国科广化(南雄)新材料研究院有限公司,广东南雄512440

出　　处：《纤维素科学与技术》2024年第4期34-40,共7页Journal of Cellulose Science and Technology

摘　　要：环氧树脂因其出色的物理和化学特性广泛应用于各领域,但传统制备依赖不可再生资源。为提升可持续性,采用植物酚类化合物(白藜芦醇、间苯二酚和间苯三酚)合成了环氧单体REP及活性酯固化剂DDA和TDA,随后制备了不同交联密度的REP/DDA和REP/TDA体系,探究了生物质原料制备低介电环氧树脂的可能性。研究结果表明,多酚活性酯固化环氧树脂性能优异,与传统环氧树脂(10 MHz,4.3/0.0390)相比,REP/DDA介电常数更低(10 MHz,3.28),介电损耗也更低(10 MHz,0.0148),Tg-DSC高于95℃,层间距为4.52Å,7天吸水率仅为0.42%。Epoxy resins are used in a wide range of applications due to their excellent physical and chemical properties,but conventional preparation relies on non-renewable resources.To enhance sustainability,the epoxy monomer REP and active ester curing agents DDA and TDA were synthesized using plant phenolic compounds(resveratrol,resorcinol and resorcinol),and REP/DDA and REP/TDA systems with different cross-linking densities were subsequently prepared to explore the possibility of preparing low dielectric epoxy resins from biomass feedstocks.The results showed that the polyphenol-activated ester-cured epoxy resins exhibited excellent performance,with lower dielectric constant(10 MHz,3.28)and lower dielectric loss(10 MHz,0.0148)for REP/DDA compared with conventional epoxy resins(10 MHz,4.3/0.0390),Tg-DSC above 95℃,layer spacing of 4.52Å,and 7-day water absorption of only 0.42%.

关 键 词：介电性能 植物多酚 环氧树脂 交联密度 活性酯 

分 类 号：Q631[生物学—生物物理学] O625.31[理学—有机化学]