The embossed aluminum foil for insulation panels is mainly used to improve the thermal insulation performance of the material and enhance its physical strength. By forming a specific pattern or texture on its surface, the embossed aluminum foil can not only increase the aesthetics, but more importantly, it can improve the reflectivity and radiation barrier ability of the aluminum foil, thereby more effectively preventing the transfer of heat.
– Surface structure: The embossing process forms a concave and convex texture to enhance the mechanical strength (anti-scratch and anti-deformation ability) and aesthetics, while expanding the surface area may improve the heat reflection efficiency.
– Material nature: Aluminum foil itself has strong thermal conductivity and is not a direct insulation material. It needs to be used in combination with an internal insulation layer (such as PIR, PUR), mainly to play a role in heat reflection and moisture protection.
Both PIR and PUR materials are commonly used insulation materials. PIR has better high temperature resistance and fire resistance, while PUR performs well in cost and insulation performance. Both can provide excellent thermal insulation effects and are widely used in construction, cold chain transportation and other fields.
Composite advantages of aluminum foil for insulation:
– Comprehensive performance: Combining embossed aluminum foil with PIR or PUR can give full play to their respective advantages and form an efficient thermal insulation system.
– Improving structural strength: Composite materials are usually stronger than single materials and can withstand greater pressure and impact.
– Easy to process: Composite materials can usually be cut and formed as needed, which is convenient for installation and application.
Material properties of embossed aluminum foil for insulation panels:
– High reflectivity and low emissivity
The surface of embossed aluminum foil has a mirror effect, and the reflectivity of infrared radiation can reach more than 95%, while its own emissivity is less than 0.05. This property enables it to effectively reduce the transfer of heat through radiation, especially in high or low temperature environments, significantly reducing system heat loss.
– High strength and lightweight
The surface of aluminum foil treated by embossing process forms a concave and convex texture, which can increase the tensile strength by 15%-20% while keeping the material thickness unchanged, and the weight is only 1/3 of the traditional galvanized steel sheet. This feature not only meets the mechanical requirements of the duct system, but also reduces the overall load.
– Corrosion resistance and long life
After anodizing, the surface of the aluminum foil can form a dense aluminum oxide protective layer, which can withstand salt spray tests for more than 1,000 hours and has a weather resistance of more than 20 years. In a humid or corrosive gas environment, its performance attenuation rate is less than 0.5%/year.
Main application scenarios
– Duct system: Wrapped around the outer wall of the duct to protect the internal insulation layer from physical damage or moisture erosion, while reflecting external heat radiation (such as direct sunlight in summer).
– Equipment housing: Used for housings of air-conditioning units, fans, etc., which are both decorative and functional, and reduce the impact of the surface temperature of the housing on the surrounding environment.
– Pipeline joints: As a sealing reinforcement material, it prevents condensation problems caused by the cold bridge effect.
