Thermal, mechanical investigation and neutron shielding analysis for Gd-MOF/polyimide materials

doi:10.1039/d1ra07500d

	Thermal, mechanical investigation and neutron shielding analysis for Gd-MOF/polyimide materials
	Hu, Chen 1,2; Huang, Qunying 1; Zhai, Yutao 1
刊名	RSC ADVANCES
	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.
资助项目	National Key Research and Development Program of China[2018YFB1900600] ; 115 Industrial Innovation Team of Anhui Province
WOS关键词	METAL-ORGANIC FRAMEWORK ; COMPOSITES ; NANOCOMPOSITES ; ACID ; FABRICATION ; SEPARATION ; POLYIMIDE ; DESIGN ; RUBBER ; ZIF-8
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000732855100001
资助机构	National Key Research and Development Program of China ; 115 Industrial Innovation Team of Anhui Province
内容类型	期刊论文
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.Chinese Acad Sci, Inst Nucl Energy Safety Technol, Hefei Inst Phys Sci, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230027, 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).