| 热处理条件对PVA薄膜阻氢性能的影响 |
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| 引用本文： | 陈晓军, 傅依备, 罗顺忠, 等. 热处理条件对PVA薄膜阻氢性能的影响[J]. 强激光与粒子束, 2003, 15(02). |
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| 作者姓名： | 陈晓军 傅依备 罗顺忠 李波 林波 初巧妹 |
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| 作者单位： | 1.中国工程物理研究院 核物理与化学研究所,四川 绵阳 621 900;;;2..中国工程物理研究院 激光聚变研究中心,四川 绵阳 621 900 |
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| 摘 要： | 采用XRD测定了PVA薄膜在不同热处理条件下的结晶度，并用自行设计的渗氢系数测量系统研究了在不同热处理条件下的PVA薄膜阻氢性能的变化规律。结果表明，PVA薄膜的热处理温度越高，其结晶度越高，越有利于提高PVA薄膜的阻氢性能，但热处理温度宜选择在180℃以下，以防止PVA薄膜热降解，另一方面，在PVA的玻璃化转变温度以下进行热处理同样能够提高PVA薄膜的阻氢性能，而醇解度较低的PVA薄膜在玻璃化转变温度以下经热处理后的阻氢性能提高的幅度较大。
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| 关 键 词： | PVA薄膜 热处理条件 氢 渗透系数 |
Effect of annealing conditions on hydrogen barrier permeability of PVA film |
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| chen xiao-jun, fu yi-bei, luo shun-zhong, et al. Effect of annealing conditions on hydrogen barrier permeability of PVA film[J]. High Power Laser and Particle Beams, 2003, 15. |
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| Authors: | chen xiao-jun fu yi-bei luo shun-zhong li bo lin bo chu qiao-mei |
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| Affiliation: | 1. Institute of Nuclear Physics and Chemistry,CAEP,P.O.Box 919-214,Mianyang 621900,China;;;2. Research Ｃenter of Laser Fusion,CAEP,P.O.Box 919-987,Mianyang 621900,China |
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| Abstract: | The crystallinity of PVA film under different annealing condition was measured by X-ray diffraction in this paper. The H2 barrier property of PVA film under different annealing condition was also studied in the hydrogen gas permeation system. Increasing annealing temperature can increase the crystallinity of PVA film, so the hydrogen barrier permeability of the annealed PVA film will be better. But the annealing temperature should be selected under 180℃ to prevent the PVA film from thermal degradation. On the other side, annealing the PVA film under its glass transition temperature will also improve the hydrogen barrier permeability of the PVA film. Lower alcoholysis degree of PVA films show better H2 barrier property improvement after they are annealed under glass transition temperature. |
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| Keywords: | pva (polyvinyl alchohol)film annealing condition h2 permeability coefficient |
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