Novel Preparation and XPS Analysis of V_2O_5 Xerogel

The V 2O 5 sol was fabricated by ultra fast quenching.The vanadium with low valence (V 4+ ) was found in V 2O 5 xerogel films by XPS analysis.The technology of oxygen top blown was applied to analyze the XPS spectrum difference of V 2O 5 xerogel when the powder of V 2O 5 was melting in air or in oxygen atmosphere.The results show that the different melting atmosphere has certain influences on the chemical valence of V 2O 5 xerogel.

HB-2五层共挤高阻隔包装复合膜研制与应用前景

介绍了HB - 2五层共挤高阻隔包装复合膜的材质结构和工艺路线 ,并分别就阻氧性能、抗污染热封性、复合强度等问题给出了相应的解决方案。HB - 2五层共挤高阻隔包装复合膜既有高阻隔性 ,又有透明性、抗污染性等优点 ,将成为高阻隔软包装领域内最具发展前景的新型包装材料。