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    • 89. 发明申请
    • ADIABATIC SOUND ABSORBER WITH HIGH THERMOSTABILITY
    • 具有高热稳定性的ADIABATIC SOUND ABSORBER
    • US20090252943A1
    • 2009-10-08
    • US12310056
    • 2007-02-23
    • Masaaki TakedaHideo Nakamura
    • Masaaki TakedaHideo Nakamura
    • B32B27/02
    • D04H1/4382D04H1/4209
    • 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.
    • 提供了具有高绝热性能和声学性能的柔性绝热吸声器,特别是适用于关于飞机的新的严格要求规格的绝热吸声材料。 绝热吸声器包括将高温强度保持在1000℃以上的高温高分子无机纤维20〜80%混合,加热熔融或分解温度为10〜60%的阻燃有机纤维 为350℃以上10〜25%的低熔点有机纤维,加热处理得到的羊毛毡,将其整体转换成厚度为8〜50毫米的垫状材料。