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用自行研制的 Ｅ Ｐ Ｒ 改性 Ｐ Ｐ基阻燃泡沫材料制成微穿孔板，研究其吸声特性及规律，并与 Ｅ Ｐ Ｒ 改性 Ｐ Ｐ基阻燃非泡沫材料微穿孔板进行对比。结果表明，泡沫材料微穿孔板吸声体在中、低频率区域的最大吸声因数可达０９８ 以上；在１２５ ～２ ０００ Ｈｚ 范围内平均吸声因数可达０５２ 以上。
The self-developed E P R modified P P based flame retardant foam material was used to make the micro perforated plate, and its sound absorption characteristics and regularity were studied. The results were compared with the E P R modified P P based flame retardant non-foam material micro perforated plate. . The results show that the maximum sound absorption coefficient of foam micro-perforated panel absorbers in the low and middle frequency range can reach 098 or more; the average sound absorption coefficient can reach 052 or more in the range of 125 to 2 000 Hz.