Exponential Aging Model of Polymeric Materials for Nuclear Cables under γ-Ray Irradiation

XU Jianfeng; GONG Yi; BAO Yichen

doi:10.11973/jxgccl201903011

Materials and Mechanical Engineering > 2019 > 43(3): 55-59. > DOI: 10.11973/jxgccl201903011

XU Jianfeng, GONG Yi, BAO Yichen. Exponential Aging Model of Polymeric Materials for Nuclear Cables under γ-Ray Irradiation[J]. Materials and Mechanical Engineering, 2019, 43(3): 55-59. DOI: 10.11973/jxgccl201903011

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Exponential Aging Model of Polymeric Materials for Nuclear Cables under γ-Ray Irradiation

1. Shanghai Institute of Process Automation Instrumentation Co., Ltd. (SIPAI), Shanghai 200233, China;
2. Shanghai Inspection and Testing Institute of Instruments and Automation Systems Co., Ltd., Shanghai 200233, China;
3. Department of Materials Science, Fudan University, Shanghai 200433, China;
4. Shanghai Nuclear Engineering Research & Design Institute Co., Ltd. (SNERDI), Shanghai 200233, China

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Received Date: February 04, 2018
Revised Date: January 22, 2019

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Abstract

Accelerated aging test of γ-ray irradiation under different cumulative doses was carried out on samples from eight polymeric materials for nuclear cables, and then tensile property test was conducted. An exponential aging model related to elongation at break and irradiation dose was established on the basis of the test results, and its universality was verified by the data from the reference. The exponential aging model was simplified, and then verified by experiments. The results show that after γ-ray irradiation, the change of elongation at break with cumulative irridation dose met exponential law. The correlation coefficient of the exponential aging model for fitting test data was greater than 0.98. The exponential aging model was generally applicable. When the number of effective test data was 2, the maximum relative error between elongation at break predicted by simplified model and test value was about 0.1, indicating that the simplified model can meet engineering requirements.
- nuclear cable,
- polymeric material,
- γ-ray irradiation,
- elongation at break,
- exponential aging model

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[1]	田农, 李同生, 刘旭军, 等. 辐照对高分子材料基本性能及摩擦学特性影响的研究进展[J]. 机械工程材料, 2001, 25(6):6-9.
[2]	时淼, 龚嶷, 徐剑峰,等. PEEK特种塑胶的辐照老化性能与机理研究[J]. 金属热处理, 2015, 40(增刊1):349-352.
[3]	郭思敏, 龚嶷, 徐剑峰,等. 辐照对用于核电站三元乙丙橡胶性能老化的影响[J]. 金属热处理, 2015, 40(增刊1):353-356.
[4]	GONG Y, TANG J, SUN B N, et al. Comparative study on different methods for determination of activation energies of nuclear cable materials[J]. Polymer Testing, 2018, 70:81-91.
[5]	孙建生, 陆燕红, 曲文波,等. 核电站1E级电缆材料的辐照老化试验研究[J]. 电线电缆, 2010(1):26-28.
[6]	SCHÖNBACHER H, TAVLET M, Compilation of radiation damage test data, part I:Halogen-free cable-insulating materials:CERN 89-12[R]. Geneva, Switzerland:European Organization for Nuclear Research, 1989.
[7]	GONG Y, HU S M, YANG X L, et al. Comparative study on degradation of ethylene-propylene rubber for nuclear cables from gamma and beta irradiation[J]. Polymer Testing, 2017, 60:102-109.

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