复合材料密封包装容器干燥控湿设计研究

Moisture-proof and Humidity-control Design of Sealed Composite Packages

目的针对复合材料长贮密封包装容器，研究探讨如何进行合理、可靠的内部环境湿度控制设计。方法通过对密封包装容器内环境相对湿度的主要影响因素进行分析，并结合实例针对包装容器防潮阻隔结构设计、干燥吸湿材料选用与用量计算．以及典型干燥剂活化处理工艺参数优化确定开展分析探讨。结果提出了长贮密封复合材料包装容器防潮阻隔结构设计的方法和注意要点．改进优化确定了一种较为符合实际的干燥剂用量计算公式。结论在分析试验数据基础上．获得了典型干燥剂细孔硅胶的活化处理温度（140～150℃）、时间（8～9h）等最佳工艺参数控制范围。

Objective To study the means of humidity control for long-term sealed storage composite packages. Methods The primary influencing factors on relative humidity of sealed packages were analyzed. The moisture barrier structure design of sealed composite packages, desiccant selection and dosage calculation formula were studied, and the drying process parameters of typical desiccant were analyzed. Results The methods and key points in moisture barrier structure design were proposed. The dosage calculation formula of desiccant was optimized. Conclusion According to the test results, the optimal drying process temperature（ 140 - 150 ℃ ）and time（ 8 - 9 h） of silica gel desiccant were acquired.