Development of high-performance all-polyester sound-absorbing materials

✍ Scribed by Kyoichi Watanabe; Yoshiaki Minemura; Kouichi Nemoto; Hiroshi Sugawara

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 712 KB
• Volume: 20
• Category: Article
• ISSN: 0389-4304
• DOI: 10.1016/s0389-4304(99)00014-4

✦ Synopsis

This paper describes two kinds of newly developed polyester sound-absorbing materials. One mainly consists of modi"ed cross-section polyester fabric, and the other consists of recycled polyester fabric. They provide noticeably higher sound-absorbing performance than traditional materials like shoddy or urethane foam. This is because the new materials have greater surface area than that of traditional materials at an identical weight. Another feature of the new materials is their excellent recyclability since they are made of polyster. Application of the new materials to the dash silencer and #oor carpeting resulted in a signi"cant improvement in sound insulation performance while achieving weight savings.