| 伽玛线辐射对PBN试样表面电荷累积的影响 |
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| 引用本文： | 杜伯学,高宇,朱晓辉.伽玛线辐射对PBN试样表面电荷累积的影响[J].高分子材料科学与工程,2009(5). |
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| 作者姓名： | 杜伯学 高宇 朱晓辉 |
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| 作者单位： | 天津大学电气与自动化工程学院;天津市电力科学研究院; |
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| 基金项目： | 国家自然科学基金资助项目(50777048) |
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| 摘 要： | 采用自制静电探头测量经60Co伽玛线辐射源辐射的聚萘二甲酸丁二醇酯(PBN)试样的表面电荷密度,分析辐射量对试样表面电荷特性的影响。实验结果表明,随着施加负直流电压时间的延长,试样表面电荷平均密度增大;随着辐射量的增加,表面电荷平均密度降低。认为伽玛线辐射引起的交联反应使表面态密度降低,是造成PBN带电能力下降的主要原因。
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| 关 键 词： | 伽玛射线 表面电荷 累积 辐射交联 |
Effects of Gamma-Ray Irradiation on Surface Charge Accumulation on Polybutylene Naphthalate |
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| DU Bo-xue,GAO Yu,ZHU Xiao-hui.Effects of Gamma-Ray Irradiation on Surface Charge Accumulation on Polybutylene Naphthalate[J].Polymer Materials Science & Engineering,2009(5). |
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| Authors: | DU Bo-xue GAO Yu ZHU Xiao-hui |
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| Affiliation: | 1.School of Electrical Engineering & Automation;Tianjin University;Tianjin 300072;China;2.Tianjin Electrical Power Science Research Institute;Tianjin 300040;China |
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| Abstract: | In this paper,polybutylene naphthalate(PBN) was employed as test sample to investigate the effects of gamma-ray irradiation on surface charge accumulation.The sample was previously irradiated in air up to 100 kGy and then up to 1000 kGy with dosage rate of 10 kGy/h by using a 60Co gamma-source.The experiment was carried out on sample surface under a negative dc stress between two parallel electrodes.An electrostatic probe was designed to measure the surface charge density.Obtained results show that both max... |
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| Keywords: | gamma-ray irradiation surface charge accumulation crosslinking |
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