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Recycling of the styrene fraction from post-consumer waste
Summary
This study examined the recovery and recycling of styrene materials from post-consumer domestic waste through mechanical recycling. Researchers evaluated whether recycled styrene materials could achieve properties competitive with virgin material.
This investigation studied the recovery of styrene materials with mechanical recycling of different natural domestic waste. The aim of this work was to evaluate the possibility of obtaining a material capable of competing, in some respects, with the virgin material. The two main problems of the recycling and recovery process were also addressed. These include the presence of impurities from other plastic materials, such as polyvinyl chloride (PVC) or polypropylene (PP), and the degradation of the recovered materials due to previous processing or the activities of external agents such as sunlight. In both cases, it was found that the recovered material exhibits a decrease in its mechanical properties and it is also difficult to recover. The use of the instrumental-analysis techniques, such as differential scanning calorimetry (DSC), is essential for predicting the quality of the material recovered from the residue.