The purpose of this paper is to provide a full characterization of post-consumer plastic film recovered from mixed municipal solid waste (MSW) treatment plants in Spain. Currently, this type of plastic waste is not recycled due to technical or economic barriers and is still sent to landfill. Different types of municipal plastic waste (MPW) from manual and automated sorting were studied: i) colour plastic film recovered by ballistic separators and then manual sorting in different seasons; ii) colour plastic film recovered by automated sorting (air suction); and iii) white plastic film from primary manual sorting process. The samples were characterized by different techniques, including the ultimate and proximate analysis, Higher Heating Value (HHV) and Lower Heating Value (LHV), metal content, Thermogravimetric Analysis (TGA) and Derivative Thermogravimetry (DTG), Fourier Transform Infrared (FT-IR) analysis and Differential Scanning Calorimetry (DSC). The results were compared to those obtained for pretreated colour and white plastic film waste and contrasted with industrial recycled film granules of polyethylene (as a reference material for packaging film). Additionally, pretreated plastic film samples were also characterized by analyzing viscosity, Pressure-Volume-Temperature (PVT) diagram, specific heat capacity and halogen and sulphur contents. Characterization data from this study will contribute to identify and develop potential recycling alternatives for a more sustainable municipal plastic waste management, which is recognized as a priority in the European Circular Economy Action Plan to use resources in a more sustainable way.

本文的目的是提供从西班牙混合城市固体废物（MSW）处理厂回收的消费后塑料薄膜的完整特性。目前，由于技术或经济上的障碍，这种类型的塑料废物尚未回收，仍被送往垃圾填埋场。研究了通过手动和自动分类的不同类型的城市塑料废物（MPW）：i）通过防弹分离器回收彩色塑料薄膜，然后在不同季节进行手动分类；ii）通过自动分选（吸气）回收的彩色塑料薄膜；iii）主要手工分拣过程中得到的白色塑料薄膜。通过不同的技术对样品进行表征，包括最终分析和接近分析，较高的热值（HHV）和较低的热值（LHV），金属含量，热重分析（TGA）和微分热重分析（DTG），傅立叶变换红外（FT-IR）分析和差示扫描量热法（DSC）。将结果与通过预处理的彩色和白色塑料薄膜废料获得的结果进行比较，并与聚乙烯（作为包装薄膜的参考材料）的工业再生薄膜颗粒进行对比。此外，还通过分析粘度，压力-体积-温度（PVT）图，比热容以及卤素和硫含量来表征预处理的塑料薄膜样品。这项研究的特征数据将有助于识别和开发潜在的回收替代品，以实现更可持续的市政塑料废物管理，这在《欧洲循环经济行动计划》中被认为是优先考虑以更可持续的方式使用资源的方法。