Abstract A sound insulation fiber assembly capable of effectively insulating sound with a simple structure, and the sound insulation fiber A sound absorbing and insulating material having a fiber assembly and a sound absorbing and insulating material for a vehicle are provided. SOLUTION: The fiber assembly for sound insulation has an average fiber diameter of 450 nm to 8500 nm, The bulk density is 0.09 g / cm 3 to 0.33 g / cm 3 . Sound insulation fiber assembly is flat The average fiber diameter is 450 nm to 1650 nm, and the bulk density is 0.09 g / cm 3 to 0.2. Particularly preferred is 2 g / cm 3 . The sound insulation fiber assembly satisfies these numerical ranges. Accordingly, the sound insulation performance can be exhibited effectively with a light weight.
Fiber aggregate for sound insulation, sound absorbing/insulating material, and sound absorbing/insulating material for vehicle
28.09.2023
Patent
Elektronische Ressource
Englisch
IPC: | G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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