Since more and more family members have recently begun to pay attention to the thermal insulation of polyurethane composite panels, this article is about its relevant information, hurry up and save it for collection.
Polyurethane composite panel is a commonly used insulation material, which is made of polyurethane foam filled between two layers of metal sheets. The following will introduce the definition, specification standards, quality judgment and use requirements of polyurethane composite panels in detail.
1. Definition: Polyurethane composite board is a composite material composed of two layers of metal plates and polyurethane foam filled in the middle, which is widely used in the fields of exterior wall insulation and roof insulation of buildings.
2.Specifications:
Appearance: The appearance of polyurethane composite board should be flat, without obvious defects such as concave and convex, scratches, etc.
Size: The common thickness of polyurethane composite board is 50mm, 75mm, 100mm, etc., and the length and width can be customized according to actual needs.
3.Quality judgment:
Density: The density of polyurethane foam is an important indicator for estimating the quality of polyurethane composite panels, which should generally be above 40kgm.
Thermal conductivity: The thermal conductivity of polyurethane composite panels should be less than 0022w m·k, the lower the thermal conductivity, the better the insulation effect.
Compressive strength: The compressive strength of polyurethane composite board refers to the large pressure that the material can withstand, which should generally be above 150kpa.
4.Requirements for use:
Installation: When installing polyurethane composite panels, care should be taken to keep the gaps between the panels as small as possible to reduce the effects of the thermal bridging effect.
Moisture-proof: The surface of the polyurethane composite board should be dry before installation to avoid the penetration of moisture, so as not to affect the insulation effect.
Fire resistance: Polyurethane foam itself has certain flame retardant properties, but in actual use, attention should be paid to isolation from other flammable materials to ensure safety.
Polyurethane composite board is a commonly used insulation material, and its definition, specification standards, quality judgment and use requirements are essential to ensure effective insulation and safe and reliable installation. In actual use, appropriate specifications should be selected according to the specific situation, and installation and use should be carried out according to the requirements.