Journal
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
Volume 11, Issue 1, Pages 2-5Publisher
SPRINGER
DOI: 10.1007/s10163-008-0210-8
Keywords
Polystyrene; Recycling; Solubility parameters
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The amount of extruded polystyrene (XPS) waste has increased in recent years due to the increase of its use in the thermal insulation of buildings, transport vehicles, and refrigerators, among others. Dissolution with suitable solvents to achieve a volume reduction of more than 100 times without degradation of polymer chains is one of the cheapest and most efficient methods of recycling XPS. Several environmentally friendly solvents have been tested as dissolution agents for XPS volume reduction; the action of these solvents does not produce any degradation of polymer chains. The solubility of the polymer in such solvents at different temperatures was investigated. The solvent can be easily recycled by distillation, obtaining a high-quality recycled polymer.
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