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20μL浓盐酸混合溶液中,分别加入从300μL到1 700μL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800μL时,缩醛膜的渗透系数最小,阻气性能最好。
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 300μL to 1 700μL were added into the identical blended solutions of 10 mL, 3% PVA and 20μL 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 800μL, the permeability coefficient of PVG film is the minimum with the best gas-barrier properties.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2006年第4期599-603,共5页
High Power Laser and Particle Beams
基金
国家863计划项目资助课题
关键词
聚乙烯醇缩戊二醛膜
交联反应
渗透系数
阻气性能
Polyvinyl glutaral （PVG） membranes
Cross linking reaction
Permeability coefficient
Gas-barrier properties
