Inorganic fiber insulation material and method for manufacturing the same

Abstract

To provide an inorganic fiber heat insulator excellent in flexibility, restorability, and workability.SOLUTION: An inorganic fiber heat insulator contains inorganic fibers having an average fiber diameter of 2.0 to 5.0 μm, a density of 8 to 40 kg / m3, and a repulsive force of 2.0 kPa or less when subject to twofold compression.SELECTED DRAWING: None

Claims

1. It comprises inorganic fibers having an average fiber diameter of 2.0 to 5.0 μm and a binder containing a lubricant. The content of the lubricant in the binder is 1.5 to 15.0% by mass in terms of solid content. Density of 8-40 kg / m³ ３ And, The rebound force when compressed twice is 2.0 kPa or less. An inorganic fiber insulation material characterized by the following features.

2. The inorganic fiber insulation material according to claim 1, wherein the igloss content is 1.5 to 8.0% by mass.

3. The inorganic fiber insulation material according to claim 1 or 2, wherein the thickness after restoration, measured by the measurement method described below, is equal to or greater than the nominal thickness. [Method for measuring thickness after restoration] The inorganic fiber insulation material is compressed to a density of 100 to 400 kg / m³ and packaged. After being stored in a high-temperature, high-humidity environment (temperature 35°C, humidity 80%) for four weeks, it is unpacked and restored to its original state. The thickness after restoration is then measured in accordance with JIS A 9521.

4. Density of 100-400 kg / m³ ３ A method for producing an inorganic fiber insulation material according to claim 1 or 2, characterized by including a step of pressing in such a manner.

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