The Study on Improvement of Acoustic Performance for Automobile Sound-absorbing Materials Using Hollow Fiber
Jung-Wook Lee, Su-Nam Lee, Jae‐Hyun Shim, Pan-ki Jung, Won-Ku Lee, Byoung-Joo Bang · Transactions of the Korean Society for Noise and Vibration Engineering · 2011
Generally, sound-absorbing materials in vehicles are used for giving the comfort to passengers by reducing noise while driving. Materials of which targets are light weight, high performance, eco friendliness and recycling have been developed recently. In this study, sound-absorbing materials using PET(polyethylene terephthalate) hollow fibers to achieve the light weight and the high sound absorption performance are developed, and then evaluated to meet a requirement for the automotive components. The test results show that the acoustic performances of developed products having new fiber structure are better than those of the conventional product.