复合针刺非织造布的结构与吸声性能研究

针刺非织造布是一种多孔结构材料，具有良好的吸声性能。其生产工艺过程简单，原料来源丰富，具有广泛的应用前景。随着人们对环境的重视，人们正积极寻求消除噪声的途径，吸声材料发挥着越来越大的作用。本文分析了针刺吸声材料的结构，并从厚度、面密度和组成纤维细度三个方面分析了其对吸声性能的影响。

Structure and Acoustical Absorption Performance Research for Composite Needle-punced Nonwovens

Needle-punced nonwovens is a kind of multiple void structure materials and own excellent acoustical ab- sorption performance. Its prodution process is easy, raw materials source is rich and it has abroad application pros- pect. With people regarding environment, people look for way to eliminate noise and so acoustical absorption materi- als will play a greater role. In the paper, structure of needle-punched acoustical aborption materials is analysed, and its influence to acoustical sbsorption performance is analysed through three aspects, such as thickness, surface densi- ty and fiber denier.