A Study on the Effect of Natural Regenerated and Synthetic Non-woven Fabric Properties on Acoustic Applications

ABSTRACT

In this world, unnoticed sound that disturbs frequently is called as noise. It is one of the main reasons for reducing the environment quality of human being. This effect can be minimized by using acoustic absorbent material in different areas where the sound absorption is required. In textile, acoustic property of non-woven is better than the woven fabric. The non-woven fabrics were developed using the needle punching technique using kapok, jute, flax, viscose, polyester, polypropylene, and recycled polyethylene terephthalate (R-Pet) fibers. Sound absorbency parameter was tested by sound absorption tester specially designed for this purpose. The effects of fiber type, number of layers in the fabric, thickness of the sample, areal density, air permeability, and pore size on sound absorption capacity were investigated in this research work. Experimental results show that 100% kapok non-woven fabric with its high compact structure, higher thickness, lesser air permeability, and less average flow diameter exhibit good sound absorption property than other samples, and it is best-suitable for interior in automotive applications for noise control.

摘要

在这个世界上，经常引起干扰的未被注意的声音被称为噪音. 它是造成人类环境质量下降的主要原因之一. 通过在需要吸声的不同区域使用吸声材料，可以将这种影响降至最低. 在纺织品中，无纺布的声学性能优于机织物. 利用木棉、黄麻、亚麻、粘胶、聚酯、聚丙烯和再生聚对苯二甲酸乙二酯（R-Pet）纤维，采用针刺技术开发了无纺布. 采用专门设计的吸声测试仪测试吸声参数. 研究了纤维类型、织物层数、试样厚度、面密度、透气性、孔径等因素对吸声性能的影响. 实验结果表明，100%木棉无纺布具有结构紧凑、厚度大、透气性小、平均流径小等优点，具有良好的吸声性能，最适合用于汽车内饰的噪声控制.

KEYWORDS:

• Natural fiber
• regenerated fiber
• synthetic fiber
• pore size
• sound absorption tester
• air permeability

关键词:;:

• 天然纤维
• 再生纤维
• 合成纤维
• 孔径
• 吸声测试仪
• 透气性

Additional information

Funding

This paper was supported by the Ku Research Professor Program of Konkuk University.