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Qiu J, Ma J, Han W, Wang X, Wang X, Heini M, Li B, Sun D, Zhang R, Shi Y, Gao C. Effects of Electron Irradiation and Temperature on Mechanical Properties of Polyimide Film. Polymers (Basel) 2023; 15:3805. [PMID: 37765658 PMCID: PMC10535023 DOI: 10.3390/polym15183805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/01/2023] [Accepted: 09/09/2023] [Indexed: 09/29/2023] Open
Abstract
Polyimide (PI) is widely deployed in space missions due to its good radiation resistance and durability. The influences from radiation and harsh temperatures should be carefully evaluated during the long-term service life. In the current work, the coupled thermal and radiation effects on the mechanical properties of PI samples were quantitatively investigated via experiments. At first, various PI specimens were prepared, and electron irradiation tests were conducted with different fluences. Then, both uniaxial tensile tests at room temperature and the dynamic mechanical analysis at varied temperatures of PI specimens with and without electron irradiation were performed. After that, uniaxial tensile tests at low and high temperatures were performed. The fracture surface of the PI film was observed using a scanning electron microscope, and its surface topography was measured using atomic force microscopy. In the meantime, the Fourier-transform infrared spectrum tests were conducted to check for chemical changes. In conclusion, the tensile tests showed that electron irradiation has a negligible effect during the linear stretching period but significantly impacts the hardening stage and elongation at break. Moreover, electron irradiation slightly influences the thermal properties of PI according to the differential scanning calorimetry results. However, both high and low temperatures dramatically affect the elastic modulus and elongation at break of PI.
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Affiliation(s)
- Jian Qiu
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
- School of Chemistry and Civil Engineering, Shaoguan University, Shaoguan 512005, China
| | - Jusha Ma
- Shanghai Institute of Space Power-Sources, Shanghai 200245, China
| | - Wenjia Han
- Shanghai Institute of Space Power-Sources, Shanghai 200245, China
| | - Xiao Wang
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Xunchun Wang
- Shanghai Institute of Space Power-Sources, Shanghai 200245, China
| | - Maliya Heini
- Xinjiang Key Laboratory of Electronic Information Materials and Devices, Chinese Academy of Sciences, Urumqi 830011, China
| | - Bingyang Li
- China Academy of Aerospace Science and Innovation, Beijing 100871, China
- College of Engineering, Peking University, Beijing 100871, China
| | - Dongyang Sun
- School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
| | - Ruifeng Zhang
- School of Electrical Information Engineering, Ningxia Institute of Science and Technology, Shizuishan 753000, China
| | - Yan Shi
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
- School of Electrical Information Engineering, Ningxia Institute of Science and Technology, Shizuishan 753000, China
| | - Cunfa Gao
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
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Rahnamoun A, Engelhart DP, Humagain S, Koerner H, Plis E, Kennedy WJ, Cooper R, Greenbaum SG, Hoffmann R, van Duin AC. Chemical dynamics characteristics of Kapton polyimide damaged by electron beam irradiation. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.05.035] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
Polyimide (PI, Kapton-H®) films are widely utilized in the spacecraft industry for their insulating properties, mechanical durability, light weight, and chemical resistance to radiation. Still PI materials remain exposed to a combination of high-energy electrons, protons, and ultraviolet (UV) photons, particles primarily responsible for radiation-induced damage in geosynchronous Earth orbit (GEO), which drastically change PI’s properties. This work reviews the effect of electron, proton, and UV photon irradiation on the material properties (morphology, absorption, mechanical properties, and charge transport) of PI. The different damaging mechanisms and chemical consequences that drive changes in the material properties of PI caused by each individual kind of irradiation will be discussed in detail.
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Microstructure evolution of polyimide films induced by electron beam irradiation-load coupling treatment. Polym Degrad Stab 2018. [DOI: 10.1016/j.polymdegradstab.2018.07.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Antony R, Theodore David S, Karuppasamy K, Sanjeev G, Balakumar S. Influence of electron beam irradiation on spectral, thermal, morphological and catalytic properties of Co(II) complex immobilized on chitosan's Schiff base. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 124:178-186. [PMID: 24486862 DOI: 10.1016/j.saa.2013.12.061] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2013] [Revised: 12/05/2013] [Accepted: 12/10/2013] [Indexed: 06/03/2023]
Abstract
This study was carried out to investigate the effect of electron beam irradiation on the spectral and catalytic properties of chitosan supported (ONClCl) tetra coordinated Co(II) complex, [Co(OIAC)Cl2]. The complex was subjected to electron beam irradiation of 100 Gy, 1 kGy and 10 kGy doses. Chain scission of chitosan was observed on irradiation at 100 Gy and 10 kGy and chain linking at 1 kGy as evidenced by viscosity and FT-IR spectroscopic studies. This observation was also confirmed by thermo gravimetric and differential thermogravimetric (TG-DTG) analysis. It revealed that the thermal stability of the complex was increased at 1 kGy irradiation and decreased at 100 Gy and 10 kGy. In addition, the effect of electron beam irradiation on the surface morphology of the complex was studied by scanning electron microscopy. Catalytic abilities of both non-irradiated complex and irradiated complexes were determined and compared in the cyclohexane oxidation using hydrogen peroxide oxidant. The catalytic activity was found to increase after irradiation at all doses. Though the complex irradiated at 10 kGy showed highest conversion efficiency, irradiation at 1 kGy is suggested as the best dose due to the extensive reusability and adequate catalytic ability of the complex.
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Affiliation(s)
- R Antony
- Centre for Scientific and Applied Research, PSN College of Engineering and Technology, Tirunelveli 627 152, Tamil Nadu, India
| | - S Theodore David
- Centre for Scientific and Applied Research, PSN College of Engineering and Technology, Tirunelveli 627 152, Tamil Nadu, India.
| | - K Karuppasamy
- Centre for Scientific and Applied Research, PSN College of Engineering and Technology, Tirunelveli 627 152, Tamil Nadu, India
| | - Ganesh Sanjeev
- Microtron Centre, Mangalore University, Mangalagangotri 574 199, Karnataka, India
| | - S Balakumar
- Centre for Scientific and Applied Research, PSN College of Engineering and Technology, Tirunelveli 627 152, Tamil Nadu, India
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Mahesha Upadhya K, Udayashankar NK, Ganesh S. Electron irradiation effects on optical properties of semiorganic antimony thiourea tetra chloride single crystals. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 97:38-44. [PMID: 22743610 DOI: 10.1016/j.saa.2012.05.055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2012] [Revised: 05/13/2012] [Accepted: 05/26/2012] [Indexed: 06/01/2023]
Abstract
Antimony thiourea tetra chloride single crystals were grown by solution growth technique at room temperature. The UV-visible, fourier transform infrared and fluorescence spectra were recorded and electron irradiation effects on these properties were studied. The optical absorption edge of the UV-visible spectrum slightly shifts towards longer wavelength with the increase of irradiation dose. The fluorescence quantum yield is decreased for electron irradiated antimony thiourea tetra chloride crystals. The presence of functional group of the as-grown and electron irradiated complex was confirmed by fourier transform infrared spectral study.
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Affiliation(s)
- K Mahesha Upadhya
- Department of Physics, National Institute of Technology Karnataka, Surathkal, P.O. Srinivasnagar 575025, Karnataka, India.
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Devasahayam S, Hill DJT, Connell JW. FT-Raman studies of a range of polyimides subjected to high-energy radiations at room and elevated temperatures. J Appl Polym Sci 2006. [DOI: 10.1002/app.23547] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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