XPS保温板，它是以聚苯乙烯树脂为原料加上其他的原辅料与聚含物，通过加热混合同时注入催化剂，然后挤塑压出成型而制造的硬质泡沫塑料板。.它的学名为绝热用挤塑聚苯乙烯泡沫塑料（简称XPS),XPS具有完美的闭孔蜂窝结构，这种结构让XPS板有极低的吸水性（几乎不吸水）、低热导系数、高抗压性、抗老化性（正常使用几乎无老化分解现象）。
XPS insulation board, which is made of polystyrene resin and other raw materials and polymer inclusions, is heated and mixed into the catalyst at the same time, and then extruded and extruded to form rigid foam plastic plate. Its scientific name is insulation extruded polystyrene foam (XPS). XPS has a perfect closed cell honeycomb structure. This structure makes XPS board have very low water absorbency (almost no water absorption), low thermal conductivity, high compressive resistance and aging resistance (normal use almost no aging decomposition phenomenon).
聚氨酯保温板
Polyurethane insulation board
1、硬质聚氨酯板导热系数低，热工性能好。当硬质聚氨酯容重为35～40kg/m3时，导热系数仅为0.018g~0.023w/（m．k），约相当于EPS的一半，是所有保温材料中导热系数最低的一种。
1. Rigid polyurethane board has low thermal conductivity and good thermal performance. When the unit weight of rigid polyurethane is 35-40kg / m3, the thermal conductivity is only 0.018g-0.023w / (m.k), which is about half of EPS, and it is the lowest thermal conductivity of all thermal insulation materials.
2、硬质聚氨酯板具有防潮、防水性能。硬质聚氨酯的闭孔率在90%以上，属于憎水性材料，不会因吸潮增大导热系数，墙面也不会渗水。
2. Rigid polyurethane board has moisture-proof and waterproof properties. The closed cell rate of rigid polyurethane is more than 90%, which belongs to hydrophobic material. It will not increase the thermal conductivity due to moisture absorption, and the wall will not seep.