食品包装塑料制品中掺杂回收塑料的分析及检测方法研究现状

摘要

随着高分子材料工业的飞速发展，塑料制品已广泛应用于食品包装行业，同时食品包装塑料制品中掺杂回收塑料的问题也日益严重。本文综述了食品包装塑料制品中掺杂回收塑料的分析及检测方法研究现状，重点讨论了红外光谱法、热分析法、分子量及其分布法、气相色谱-质谱联用法、机械性能法等分析方法的应用现状及可行性。同时对该领域的发展趋势进行了展望。%ABSTRACT:With the rapid development of high molecular industry, plastic production has been widely used in food packaging industry. However, the adulteration of recycled plastics in plastic food packaging is increasingly serious. The current detection methods for identification of food packaging plastic products adulteration with recycled plastics were reviewed. The application status and feasibility of several identification methods including infrared spectrometry, thermal analysis, molecular weight and its distribution analysis, gas chromatography-mass spectrometry analysis and mechanical properties analysis in identification process were discussed in detail. Farther trend in this field was also forecasted.