Rigid polyurethane foam is widely used in Europe and the United States for building roofs, walls, ceilings, floors, doors and windows, and other thermal insulation materials because of its light weight, low thermal conductivity, good heat resistance, aging resistance, easy to bond with other substra

Polyurethane foam insulation molding is to stir materials at room temperature to make them mix and react, and then quickly pour them into the space that needs to be molded. During the construction process, the reaction foaming time should be controlled so that the stirred mixture is poured into the

PU rigid foam composite polyether is one of the main raw materials of polyurethane insulation materials. PU rigid foam composite polyether is also called white material, together with polymer MDI, it is called black and white material. Black and white materials are suitable for building heat preserv

In recent years, polyurethane resins have made their composites stand out due to their good toughness, fast curing speed, and no styrene smoke. With people's mastery of polyurethane molding technology and progress in controlling its reactivity to extend its service life, polyurethane has long entere

1. Site selection skills　　The location of the thermal insulation house of the breeding farm should be a place with a leeward wind and sunny, high terrain and dry soil.　　 2. Alternative insulation materials for the insulation room of the farmExtruded polystyrene foam (extruded board), molded polystyr