Unverified85% confidenceFactTime unknown
9mm聚酯纤维吸音板NRC约0.4-0.5，主要吸收中高频段；要达到NRC 0.7以上通常需要25mm及以上厚度或增加空腔安装
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Unverified聚酯纤维吸音板NRC值随厚度递增：9mm厚NRC约0.35-0.45，仅适合装饰点缀；录音室/直播间需选25-50mm厚或做50-100mm空腔背衬，NRC可达0.85以上87% similarUnverified9mm聚酯纤维吸音板隔声量仅约3-5dB，几乎起不到隔墙作用，只有吸音降混响功能；要实质隔声需选用12kg/㎡以上隔音毡或双层石膏板结构，厚度往往需5cm以上78% similarUnverifiedNRC值≥0.85的产品才算高效吸音，聚酯纤维板常见NRC在0.5-0.7，用于录音棚需选NRC≥0.9的加厚岩棉/玻璃棉产品77% similarUnverified常见9mm或12mm聚酯纤维背景墙板NRC通常仅0.15-0.3，属于装饰材料，用于治理实际噪声或混响是无效投入77% similarUnverified常见9mm聚酯纤维吸音板单块规格约30×30cm或60×60cm，密度多在2000-3000g/m²，密度越高吸音和阻燃性能越好76% similar
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