Nitrogen-Free Tetrafunctional Epoxy and Its DDS-Cured High-Performance Matrix for Aerospace Applications

被引:62
作者
Liu, Tuan [1 ]
Zhang, Liangdong [2 ]
Chen, Ruoshi [1 ]
Wang, Liwei [2 ]
Han, Bing [3 ,4 ]
Meng, Yan [1 ]
Li, Xiaoyu [2 ]
机构
[1] Beijing Univ Chem Technol, Key Lab Carbon Fiber & Funct Polymers, Minist Educ, Beijing 100029, Peoples R China
[2] Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China
[3] Peking Univ, Sch & Hosp Stomatol, Dept Orthodont, 22 Zhongguancun South Ave, Beijing 100081, Peoples R China
[4] Natl Engn Lab Digital & Mat Technol Stomatol, 22 Zhongguancun South Ave, Beijing 100081, Peoples R China
基金
中国国家自然科学基金;
关键词
HYPERBRANCHED POLYMER; FATTY-ACIDS; FREE-VOLUME; RESINS; COMPOSITES; NETWORKS; SYSTEM; NANOCOMPOSITES; THERMOSETS; INTERFACES;
D O I
10.1021/acs.iecr.7b00096
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Tetrafunctional epoxy is an indispensable matrix for the aerospace industry, high-temperature adhesives, and encapsulation materials, where high service temperatures (>220 C-omicron) are required. N,N,N',N'-Tetraglycidyl-4,4'-diaminodiphenylmethane (TGDDM) has long been the dominant candidate in those applications; however, fully cured TGDDM epoxy materials suffer from poor. toughness, unwanted side reactions, and inadequate moisture resistance. A novel tetrafunctional epoxy, TFTE, is synthesized to address those issues, which have not been resolved for decades. TFTE can be prepared through a simple three-step procedure using readily available raw materials. Each step shows a high yield (>90%) and involves only mild reaction conditions. When TFTE is mixed with diglycidyl ether of bisphenol A (DGEBA) and cured with 4,4'-diaminodiphenylsulfone (DDS), the cured epoxy shows a T-g value of 252 C-omicron, a tensile strength of 80.0 MPa, and, more importantly, a higher toughness (29.8 kJ/m(2)) and better moisture resistance than the TGDDM/DDS system. In addition, the interfacial strength, thermal stability, and processability of TFTE/DGEBA are comparable to those of TGDDM. These excellent properties and processability make TFTE a potential replacement for TGDDM.
引用
收藏
页码:7708 / 7719
页数:12
相关论文
共 37 条
[1]   Epoxy composites based on inexpensive char filler obtained from plastic waste and natural resources [J].
Ahmetli, Gulnare ;
Kocaman, Suheyla ;
Ozaytekin, Ilkay ;
Bozkurt, Pinar .
POLYMER COMPOSITES, 2013, 34 (04) :500-509
[2]  
Ardebili H, 2009, MATER PR ELECT APPL, P1
[3]   Thermodynamic and mechanical properties of amine-cured epoxy resins using group interaction modelling [J].
Foreman, Joel P. ;
Porter, David ;
Behzadi, Shabnam ;
Travis, Karl P. ;
Jones, Frank R. .
JOURNAL OF MATERIALS SCIENCE, 2006, 41 (20) :6631-6638
[4]   Preparation of graphene oxide/epoxy nanocomposites with significantly improved mechanical properties [J].
Galpaya, D. ;
Wang, M. ;
George, G. ;
Motta, N. ;
Waclawik, E. ;
Yan, C. .
JOURNAL OF APPLIED PHYSICS, 2014, 116 (05)
[5]   Proton transfer polymerization in the preparation of hyperbranched polyesters with epoxide chain-ends and internal hydroxyl functionalities [J].
Gong, CG ;
Fréchet, JMJ .
MACROMOLECULES, 2000, 33 (14) :4997-4999
[6]   Polyaniline Stabilized Magnetite Nanoparticle Reinforced Epoxy Nanocomposites [J].
Gu, Hongbo ;
Tadakamalla, Sruthi ;
Huang, Yudong ;
Coloradc, Henry A. ;
Luo, Zhiping ;
Haldolaarachchige, Neel ;
Young, David P. ;
Wei, Suying ;
Guo, Zhanhu .
ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (10) :5613-5624
[7]  
Hourston DJ, 1997, POLYM INT, V42, P349, DOI 10.1002/(SICI)1097-0126(199704)42:4<349::AID-PI710>3.0.CO
[8]  
2-3
[9]   Epoxy Monomers Derived from Tung Oil Fatty Acids and Its Regulable Thermosets Cured in Two Synergistic Ways [J].
Huang, Kun ;
Liu, Zengshe ;
Zhang, Jinwen ;
Li, Shouhai ;
Li, Mei ;
Xia, Jianling ;
Zhou, Yonghong .
BIOMACROMOLECULES, 2014, 15 (03) :837-843
[10]   Core-shell SiO2@RGO hybrids for epoxy composites with low percolation threshold and enhanced thermo-mechanical properties [J].
Huang, Liang ;
Zhu, Pengli ;
Li, Gang ;
Lu, Daoqiang ;
Sun, Rong ;
Wong, Chingping .
JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (43) :18246-18255