Quality Changes of Low-Density Polyethylene (LDPE) Recyclates from the Pretreatment Process with a Cationic Surfactant and a Nonionic Surfactant as Cleaning Agents Upstream of Extrusion

Low-density polyethylene is the most applied packaging plastic. The recycling rate of LDPE low, especially for material from post-consumer source. quality recyclates influenced by different contaminations, either intentionally or non-intentionally. Printing ink one substances that regarded as having a negative influence on recyclates. This study used new type nonionic surfactant oxirane, methyl-, polymer de-inking pretreatment. Afterward, film flakes were mechanically recycled in laboratory. A melt flow index (MFI), differential scanning calorimetry (DSC), and tensile strength analysis carried out. work reported effect surfactant. However, no evidential correlation between color removal improvement rheological, thermal, mechanical properties can be identified result this study.