| 聚乙烯醇缩醛膜阻气性能的研究 |
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| 引用本文： | 张丽卿, 李波, 蒋刚, 等. 聚乙烯醇缩醛膜阻气性能的研究[J]. 强激光与粒子束, 2006, 18(04). |
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| 作者姓名： | 张丽卿 李波 蒋刚 王志光 |
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| 作者单位： | 1.中国科学院 近代物理研究所, 兰州 730000;;;2.中国工程物理研究院 激光聚变研究中心, 四川 绵阳621 900;;;3.四川大学 原子与分子物理研究所, 成都 61 0065 |
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| 摘 要： | 为了提高激光靶丸的阻气性能，用戊二醛对阻气层材料聚乙烯醇进行交联改性。在17份完全相同的10 mL质量分数3%的聚乙烯醇(PVA)和20 μL浓盐酸混合溶液中，分别加入从300 μL到1 700 μL的戊二醛(GA)，交联反应后，测量缩醛膜的阻气性能，并计算渗透系数。 结果表明，随着缩醛膜中戊二醛含量的增加，缩醛膜渗透系数的变化规律是：从减小到增加到不变再到增加；当戊二醛的含量是800 μL时，缩醛膜的渗透系数最小，阻气性能最好。
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| 关 键 词： | 聚乙烯醇缩戊二醛膜 交联反应 渗透系数 阻气性能 |
Study on gas-barrier properties of polyvinyl glutaral membranes |
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| zhang li-qing, li bo, jiang gang, et al. Study on gas-barrier properties of polyvinyl glutaral membranes[J]. High Power Laser and Particle Beams, 2006, 18. |
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| Authors: | zhang li-qing li bo jiang gang wang zhi-guang |
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| Affiliation: | 1. Institute of Modern Physics,Chinese Academy of Sciences,P.O.Box 31-57,Lanzhou 730000,China;;;2. Research Center of Laser Fusion,CAEP,P.O.Box 919-987,Mianyang 621900,China;;;3. Institute of Atomic and Molecular Physics,Sichuan University,Chengdu 610065,China |
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| Abstract: | Gas-barrier material-polyvinyl alcohol (PVA) of multilayer laser microsphere was cross linked by glutaraldehyde (GA) in order to improve the gas-barrier properties of microsphere. Different content of GA, from 300 μL to 1 700 μL were added into the identical blended solutions of 10 mL, 3% PVA and 20 μL hydrochloric acid. Gas-barrier properties of polyvinyl glutaral (PVG) membranes was measured after cross linking reaction and permeability coefficient of PVG membranes was worked out. It was found that PVG′s permeability coefficient first decreases, and then increases, then keeps stead, at last increases with the increase of GA content in PVG membranes . Moreover, when GA content is 800 μL, the permeability coefficient of PVG film is the minimum with the best gas-barrier properties. |
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| Keywords: | polyvinyl glutaral (pvg) membranes cross linking reaction permeability coefficient gas-barrier properties |
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