封声飞,周权,赵延广.温度对乙烯-四氟乙烯共聚物薄膜氢气透过性的影响研究[J].包装工程,2025,(5):42-49.
FENG Shengfei,ZHOU Quan,ZHAO Yanguang.Effect of Temperature on Hydrogen Permeability of Ethylene-tetrafluoroethylene Copolymer Films[J].Packaging Engineering,2025,(5):42-49. |
| 温度对乙烯-四氟乙烯共聚物薄膜氢气透过性的影响研究 |
| Effect of Temperature on Hydrogen Permeability of Ethylene-tetrafluoroethylene Copolymer Films |
| 投稿时间：2024-09-04 |
| DOI：10.19554/j.cnki.1001-3563.2025.05.005 |
| 中文关键词: 乙烯-四氟乙烯共聚物 透气性 阿伦尼乌斯方程 热导法 渗透因子 |
| 英文关键词: ethylene-Tetrafluoroethylene copolymer gas permeability Arrhenius equation thermal conductivity method permeation factor |
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| 中文摘要: |
| 目的 探究并验证乙烯-四氟乙烯共聚物(ETFE)薄膜在0~50 ℃下的氢气透过性规律。方法 首先，根据分子扩散理论分析推导出表征ETFE薄膜透气速率的特征变量——渗透因子fp。其次，通过实验，采用热导法快速测定不同温度下ETFE薄膜对不同浓度氢气的渗透因子。再次，结合反应活化能理论与渗透因子实验数据进行结果分析，并通过对比相同温度下实际测定的渗透因子fp与理论计算的渗透因子Fp得出结论。最后，通过实验验证结果的正确性。结果 温度te和氢气渗透因子fp之间存在如下关系，在不同氢气浓度下，热力学温度的倒数与fp的自然对数均呈线性关系，在相同温度下，实际fp与理论Fp接近。结论 在0~50 ℃下，温度对ETFE薄膜的氢气透过性影响规律符合阿伦尼乌斯(Arrhenius)方程，该研究对扩展ETFE薄膜在透气性与防护领域的应用中提供了一定的参考价值。 |
| 英文摘要: |
| The work aims to investigate and verify the permeability of hydrogen gas through ethylene-tetrafluoroethylene copolymer (ETFE) films in the temperature range of 0 to 50 ℃. Firstly, the characteristic variable - the permeation factor fp, which characterized the gas permeation rate of ETFE films, was derived based on the molecular diffusion theory. Secondly, the permeation factor of ETFE films to hydrogen gas of different concentrations at different temperatures was rapidly determined by the thermal conductivity method. Thirdly, the results were analyzed by combining the reaction activation energy theory with the experimental data of the permeation factor, and the conclusion was drawn by comparing the actual measured permeation factor fp with the theoretical calculated permeation factor Fp at the same temperature. Finally, the correctness of the results was verified by experiments. The relationship between the temperature te and the hydrogen permeation factor fp was as follows:at different hydrogen concentrations, the reciprocal of the absolute temperature and the natural logarithm of fp were linearly related. At the same temperature, the actual fp was close to the theoretical Fp. In the temperature range of 0 to 50 ℃, the effect of temperature on the hydrogen permeability of ETFE films conforms to the Arrhenius equation. This study provides certain reference value for the application of ETFE films in the field of gas permeability and protection. |
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