FTC phase transition at high temperature insulation material is extruded to form sealed glass surface, the internal nest hole filled with inert gas. Re-use of air-entraining solid foam and foam technology, the material inside the large number of closed form microbubbles. "Two micro" structure so that a large number of products successfully Xucun static air, static air is the thermal conductivity of 0 ℃ 0.026w (mk), thereby insulating material is a powerful phase insulation. In addition, closed-cell structure effectively eliminates the hole gas convection and radiation heat transfer between the hole wall, so that further enhance the insulation properties of materials.