Views:69 Author:Site Editor Publish Time: 2020-10-12 Origin:Site
Thermal insulation boards are composed of several materials, such as asbestos boards, polyurethane foam boards, and XPS boards. XPS board refers to a rigid polystyrene foam board produced by direct extrusion.
The role of XPS and some other panels in housing and other construction and engineering fields is thermal insulation. Besides, the XPS insulation board also can be applied to the packaging of goods.
As thermal insulation and energy-saving material for buildings, XPS panels can significantly reduce fuel consumption (oil, natural gas, etc.) or electricity used for heating. The production process enables these panels to have a small and tight closed molecular structure. This closed structure keeps the heat-conducting gas in a limited space, thereby achieving the effect of heat insulation. This feature also brings impermeability to the board. You can buy XPS in the building materials market, or you can buy XPS extruder for production.
Although EPS also refers to expanded polystyrene, its molding method is significantly different from XPS.
EPS is pre-mixed with a foaming agent into PS and then pelletized, PS pellets produced contain foaming agent. When an appropriate amount of PS pellets containing foaming agent are put into a predetermined mold for heating, the foaming agent in these particles will be heated and foamed, and finally formed.
EPS is used for thermal insulation of floors, walls, and ceilings. Besides, it is the same as XPS used in civil engineering, earth embankments and highways, and other structures with low bearing capacity. The extrusion process of EPS is different from XPS. EPS is different from XPS in appearance and physical properties, and its thermal insulation effect is also worse than XPS. The bulk density of EPS sheets is usually in the following range: 10-35 kg/m3 (0.62-2.18 lb/ft3).
|EPS and XPS comparison|
|Closed and foamed spherical molecular structure||Closed and foamed honeycomb molecular structure|
|High water absorption||Very low water absorption|
|Lower capital investment||Higher capital investment|
|Relatively light||Relatively heavy|
|Higher production costs (including material costs)||Lower production costs|
|Good dimensional stability||Very good dimensional stability|
|Not strong against pressure||Strong pressure resistance|
|High thermal conductivity||Low thermal conductivity|
|Low output||Higher output|
Feininger is the first professional manufacturer of XPS Extrusion Line and XPS Foam Board in China. At the same time we are the unique enterprise specializing in XPS Foam as well as developing, manufacturing and selling of XPS extrusion line. We also manufacturing ETPU extrusion line, PET production line, EPS production line, recycling and pelletizing machine, etc. Contact us for more details.