高阻隔AZO包装薄膜制备与性能研究

Preparation of High-barrier AZO Packaging Film and Study of Its Performance

为满足类似饮料、果汁、啤酒及熟制即食食品的保鲜、保质需求,制备对O2,CO2和水蒸汽等有高阻隔性的包装材料,采用靶材Zn与Al质量比为1∶19,在普通PET薄膜表面制备具有高阻隔性能的包装薄膜。通过XRO衍射,对薄膜的结构和形貌进行了表征。采用透氧测湿测试仪器对不同工艺参数进行研究分析,结果表明,制备的AZO薄膜晶体结构择优取向性好、结晶度高,ZnO的离化式C轴方向拉伸力会引起衍射峰呈C轴择优取向,在适宜的工艺条件下,可制备得高阻隔性的包装薄膜。

High--barrier packaging film was prepared on PET film surface using target material of Zn and Al with proportion of 5：95. The packaging film can meet the requirement of drink, juice, beer, and food barrier packaging. The film structure and morphology were characterized by XRO diffraction. Oxygen and moisture permeation test instrument was applied to test the barrier performance of the film prepared under different process parameters. The results showed that the preparation of the crystal structure of AZO thin films has good orientation, high crystallinity; ZnO type C of the axis from the direction of stretching force give rise to C-axis preferred orientation diffraction peak; a high-barrier packaging film can be prepared in appropriate conditions.