宇航学报

宇航学报 ›› 2016, Vol. 37 ›› Issue (2): 229-234.doi: 10.3873/j.issn.1000-1328.2016.02.014

• 环境试验与器件 • 上一篇    下一篇

真空紫外辐照引起的聚合物材料质量损失模型及实验验证

王毅，郭兴，王先荣，杨生胜，王小军   

  1. 1. 兰州空间技术物理研究所真空技术与物理重点实验室，兰州 730000；
    2. 无锡泓瑞航天科技有限公司，无锡 214000
  • 收稿日期:2015-04-13 修回日期:2015-06-16 出版日期:2016-02-15 发布日期:2016-02-25
  • 基金资助:

    真空低温技术与物理重点实验室基金（9140C550205140C55003）

Simulation and Experimental Validation of Model of Mass Loss of Polymer Material Induced by Vacuum Ultraviolet Radiation

WANG Yi, GUO Xing, WANG Xian rong, YANG Sheng sheng, WANG Xiao jun   

  1. 1.Science and Technology on Vacuum Technology and Physics Laboratory, Lanzhou Institute of Space Technology Physics, Lanzhou 730000, China; 2. Wuxi Hongrui Science and Technology Co., Ltd., Wuxi 214000, China
  • Received:2015-04-13 Revised:2015-06-16 Online:2016-02-15 Published:2016-02-25

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摘要：

基于扩散理论及辐射化学反应理论，建立真空紫外(VUV)辐照引起的聚合物材料质量损失数学模型。采用分离变量法与特征函数展开法，获得材料中挥发物质量随辐照剂量变化的函数关系式。通过实验得到聚酰亚胺(PI)薄膜和聚酯(PET)薄膜的质量损失数据，拟合求解模型中的参数，验证模型的适用性。实验结果表明，该质量损失模型适用于PI薄膜及PET薄膜，借助该模型可预估VUV辐照引起的材料的质量损失。

关键词: 真空紫外辐照, 聚合物材料, 质量损失, 扩散理论

Abstract:

Based on diffusion theory and radiation chemical reaction theory, simulation of mass loss of polymer material induced by vacuum ultraviolet (VUV) radiation is established. The mathematical formula between mass of the volatile in the material and radiation time is obtained by using the separated variable approach and the eigenfunction expansion method. Mass losses of the polyimide (PI) film and polyethylene terephthalate (PET) film are obtained through experiments and model’s parameters are solved by using curve fitting, thus validating the applicability of the model. Results show that the model of mass loss is applicable to PI or PET films and can be used for predicting mass losses of polymer materials induced by VUV radiation.

Key words: Vacuum ultraviolet radiation, Polymer materials, Mass loss, Diffusion theory

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