详细介绍了挤塑聚苯乙烯泡沫塑料（XPS）的热导率、压缩强度、长期热阻、防潮性能等主要性能指标。阐述了XPS板材的主要应用领域，包括在建筑外墙外保温、屋面保温、地面保温、冷库保温、公路、铁路、渠道工程等领域的应用。详细分析了提高XPS板材阻燃性能的必要性和紧迫性，并提出了在含氢氯氟烃替换过程中XPS泡沫行业的发展趋势。%Main properties of extruded polystyrene foam （XPS） were reviewed including thermal conductivity, compression strength, long-term thermal resistance, moisture-proofing etc. XPS boards could be applied in thermal insulation for building and cold store, as well as geofoam for road, railway and channel. The necessity of improving flame retardancy of XPS boards was discussed. Developing trend of XPS foam sector was put forward in the background of phase-out of HCFCs.
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