光－生物降解发泡PS快餐具性能评价方法研究

本文通过对国内几家单位所开发的光－生物降解发泡聚苯乙烯餐盒使用性能和降解性能的实验研究，初步提出对该类餐盒应从理化指标、毒性指标及样品经氙灯光源加速老化试验、自然气候曝露实验和野外降解实验后红外光谱分析、样品厚度变化及分子量变化情况的测试等几个方面进行评价，为该类产品的研制、开发及应用提供了依据。

Study on Property Assessment Method of photo-and Bio-degradable Foamed PS Snack Containers

Based on the usability and degradability experiment of photo-and biodegradable foamed polystyrene snack containers developed by several domestic firms,the authors preliminarily suggest that the assessment of this kind of snack containers should be relied upon the physical and chemical properties ratings,toxicity ratings,and the IR analysis of the samples after xenon are weathering,outdoor exposure and degradation tests in field,and the measurements of the changes of sample thickness and molecular weight It can provide the scientific basis for research and development and application of this product.