1. Light weight: the density is 0.1-0.4 times of the metal aluminum.
2. High specific stiffness: its flexural stiffness is 1.5 times that of steel.
3. High damping performance and impact energy absorption: the damping performance is 5-10 times that of aluminum metal.Aluminum foam roof panels with a porosity of 84% can absorb more than 2.5MJ/m3 of energy when it is deformed by 50%.
4. Good acoustic function:
(1) Sound insulation performance (obturator) : When the sound frequency is between 800 and 4000HZ, the sound insulation coefficient of aluminum foam in the obturator is above 0.9.
(2) Sound absorption performance (microthrough-hole and through-hole) : When the acoustic frequency is between 125-- 4000HZ, the sound absorption coefficient of aluminum foam through the hole can be as high as 0.8, and the average sound absorption coefficient of frequency octave exceeds 0.4.
5. Excellent electromagnetic shielding performance: when the electromagnetic wave frequency is between 2.6 -- 18GHZ, the electromagnetic shielding capacity of aluminum foam can reach 60-90dB.
6. Good thermal properties: closed-cell foam with porosity of 80-90%, equivalent to marble.Through - Aluminum foam roof panels has good heat dissipation property under forced convection.
7. No burning and good heat resistance.□ Corrosion resistance, good weather resistance, low moisture absorption, no aging, no toxicity.
8. Easy to process: convenient for cutting, drilling and cementing;Can be bent into the desired shape by moulding;Surface treatment with organic or inorganic paint;Can be skinned on both sides to form a large size light weight, high stiffness plate.
9 easy to install: Aluminum foam roof panels materials can be installed in high places without the need for mechanical lifting equipment, such as: ceiling ceiling, walls and roofs, etc., can be mechanically or directly connected and fixed with screws, can also use adhesive paste in the wall or ceiling.
10. The sandwich structure formed by metal sheet -- aluminum foam inherits the excellent properties of aluminum foam and has high bending strength, which can be used as new building materials and high rigidity structural parts of rolling stock.
