| 摘要 |
An acoustic insulating panel includes at least one magnesium oxide board affixed to at least one low emissivity insulating sheet. The low emissivity insulating sheet is composed of two bubble-pack layers, each composed of two thermoplastic films forming there between a plurality of closed cavities, and a central film interposed between and bonded to the two bubble-pack layers. The central film is a thin foil of metal or a metallized thermoplastic film. |
