China Plastics ›› 2011, Vol. 25 ›› Issue (12): 71-75 .DOI: 10.19491/j.issn.1001-9278.2011.12.020

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New Alternative Technologies for HCFCs of XPS Foam

Yong WANG Ying LI   

  • Received:2011-11-15 Revised:1900-01-01 Online:2011-12-26 Published:2011-12-26

Abstract: New alternative technologies for HCFCs of extruded polystyrene foam (XPS) sector in China were reviewed, including with CO2, hydrocarbon and hydrofluorocarbon as blowing agents. The characteristics and difficulties of alternative technologies were discussed from properties of blowing agents, metering system for blowing agents, and extrusion foaming equipments. Finally, the CO2 technologies would be the developing trend of XPS foam sector in China.

Key words: extruded polystyrene foam, hydrochlorofluorocarbon, carbon dioxide, butane, hydrofluorocarbon, metering system, equipment