ADIABATIC SOUND ABSORBER WITH HIGH THERMOSTABILITY

Provided is a flexible adiabatic sound absorber with high thermal insulation performance and acoustic performance, particularly an adiabatic sound absorbing material that is suitable for a new severe requirement specification regarding aircrafts. The adiabatic sound absorber comprises mixing uniform...

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Bibliographic Details
Main Authors NAKAMURA HIDEO, TAKEDA MASAAKI
Format Patent
LanguageEnglish
Published 08.10.2009
Subjects
BRAIDING
COTTON-WOOL
FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS
KNITTING
LACE-MAKING
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL
NON-WOVEN FABRICS
PERFORMING OPERATIONS
TEXTILES
TRANSPORTING
TRIMMINGS
WADDING
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Summary:Provided is a flexible adiabatic sound absorber with high thermal insulation performance and acoustic performance, particularly an adiabatic sound absorbing material that is suitable for a new severe requirement specification regarding aircrafts. The adiabatic sound absorber comprises mixing uniformly 20 to 80% of a high-thermostable inorganic fiber whose high-temperature strength is maintained at 1000° C. or more, 10 to 60% of a flame-retarded organic fiber whose thermal melting or decomposition temperature is 350° C. or more and 10 to 25% of an organic fiber having a low melting point and treating the obtained woolly felt with heating to transform the whole into the mat-form material of 8 to 50 mm in thickness.
Bibliography:Application Number: US20070310056