Thermal, mechanical investigation and neutron shielding analysis for Gd-MOF/polyimide materials
文献类型：期刊论文
| 作者 | Hu, Chen1,2 ; Huang, Qunying2; Zhai, Yutao2
|
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2021-12-13 |
| 卷号 | 11 |
| DOI | 10.1039/d1ra07500d |
| 通讯作者 | Hu, Chen(hu2017@mail.ustc.edu.cn) |
| 英文摘要 | None of the currently commercialized shielding materials in Generation IV nuclear energy systems are satisfactory in their performance. Developing a candidate neutron shielding material with good heat resistance and high strength is a challenging task. In this work, various gadolinium metal-organic frameworks (Gd-MOFs) with obvious advantages, such as porous structures, organic surfaces and strong neutron-absorbing nuclei, were synthesized to constrain polyimide (PI) chains. A series of Gd-MOF/PI conjugates were subsequently assessed for their thermal stability, mechanical properties and neutron shielding performance. The increase of the Gd-MOF content improved the thermal neutron shielding ability but slightly reduced the fast neutron shielding ability. Compared with those of pure PI, the Gd-MOF/PI films demonstrate a higher glass transition temperature (T-g), which is considered the gold standard of engineering plastics. It was also observed that the tensile strength directly correlates with the Gd-MOF content, which continuously increases until a maximum is reached, and then subsequently decreases. Furthermore, the high-temperature tensile test showed that these tunable Gd-MOF/PI films are intact and robust, indicating their potential application for neutron shielding materials in Generation IV nuclear energy systems. |
| WOS关键词 | METAL-ORGANIC FRAMEWORK ; COMPOSITES ; NANOCOMPOSITES ; ACID ; FABRICATION ; SEPARATION ; POLYIMIDE ; DESIGN ; RUBBER ; ZIF-8 |
| 资助项目 | National Key Research and Development Program of China[2018YFB1900600] ; 115 Industrial Innovation Team of Anhui Province |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000732855100001 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | National Key Research and Development Program of China ; 115 Industrial Innovation Team of Anhui Province |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/126898]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Hu, Chen |
| 作者单位 | 1.Univ Sci & Technol China, Hefei 230027, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Nucl Energy Safety Technol, Hefei Inst Phys Sci, Hefei 230031, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Chen,Huang, Qunying,Zhai, Yutao. Thermal, mechanical investigation and neutron shielding analysis for Gd-MOF/polyimide materials[J]. RSC ADVANCES,2021,11. |
| APA | Hu, Chen,Huang, Qunying,&Zhai, Yutao.(2021).Thermal, mechanical investigation and neutron shielding analysis for Gd-MOF/polyimide materials.RSC ADVANCES,11. |
| MLA | Hu, Chen,et al."Thermal, mechanical investigation and neutron shielding analysis for Gd-MOF/polyimide materials".RSC ADVANCES 11(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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