Tertiary-amine-free, non-planar, fluorine-containing tetrafunctional epoxy and its application as high performance matrix
文献类型：期刊论文
| 作者 | Zhai, Hongyi; Cao XZ(曹兴忠) ; Li, Xiaoyu; Meng, Yan; Cao, Xingzhong; Liu, Tuan; Miao, Xuepei; Fu, Jianwei; Bao, Fei; Xing, An
|
| 刊名 | POLYMER TESTING
 |
| 出版日期 | 2018 |
| 卷号 | 71页码:38-48 |
| 关键词 | Tetrafunctional epoxy Mechanical property Thermal stability Water resistance Dielectric constant Fluorine-containing |
| ISSN号 | 0142-9418 |
| DOI | 10.1016/j.polymertesting.2018.08.022 |
| 文献子类 | Article |
| 英文摘要 | N,N,N',N'-tetraglycidyl-4,4'-diamino-diphenylmethane (TGDDM) is the most widely used epoxy matrix in aerospace/aircraft industries, however its cured product suffers from cyclization side reactions, inadequate toughness and water resistance, and relatively high dielectric constant, which are rooted in its amine-derived nature. In order to address those issues, a tertiary-amine-free, non-planar, fluorine-containing tetrafunctional epoxy (FCTE) was synthesized with high yield. When FCTE is mixed with DGEBA and cured with 4,4'-diaminodiphenylsulfone (DDS), the cured epoxy shows excellent balanced properties. At 20 wt% FCTE loading, the cured mixed epoxy shows a tensile strength and impact strength of 82.5 MPa and 30.5 kJ/m(2), respectively, which are higher than those of TGDDM (76.5 MPa and 11.6 kJ/m(2)). Molecular simulation, PALS measurement, and TMA characterization suggest that the improved mechanical properties could be related to the marginal side reactions and larger free volume. The introduced fluorine-containing units also lead to better water resistance and lower dielectric constant compared with TGDDM. Despite a marginal drop in T-g, thermal degradation temperature is greatly improved. In addition, when FCTE is used as the matrix for a polyimide fiber reinforced composite, the interlaminar shear strength is also higher, making it a better candidate for preparing high temperature, light weight, and low-k composites. |
| 电子版国际标准刊号 | 1873-2348 |
| WOS关键词 | FREE-VOLUME ; POSITRON-ANNIHILATION ; MECHANICAL-PROPERTIES ; PHYSICAL-PROPERTIES ; WATER-ABSORPTION ; CARBON-FIBER ; RESIN SYSTEM ; COMPOSITES ; POLYMER ; NETWORKS |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000449134300008 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286615]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhai, Hongyi,Cao XZ,Li, Xiaoyu,et al. Tertiary-amine-free, non-planar, fluorine-containing tetrafunctional epoxy and its application as high performance matrix[J]. POLYMER TESTING,2018,71:38-48. |
| APA | Zhai, Hongyi.,曹兴忠.,Li, Xiaoyu.,Meng, Yan.,Cao, Xingzhong.,...&Xing, An.(2018).Tertiary-amine-free, non-planar, fluorine-containing tetrafunctional epoxy and its application as high performance matrix.POLYMER TESTING,71,38-48. |
| MLA | Zhai, Hongyi,et al."Tertiary-amine-free, non-planar, fluorine-containing tetrafunctional epoxy and its application as high performance matrix".POLYMER TESTING 71(2018):38-48. |
入库方式： OAI收割
来源：高能物理研究所
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