Development of high-performance all-polyester sound-absorbing materials |
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| Institution: | 1. Platform Development Group No. 1, Platform Development Department No. 1, Vehicle Engineering Division, Nissan Motor Co., Ltd., Okatsukoku 560-2, Atsugi-shi, Kanagawa 243-01, Japan;2. Material Research Laboratory, Nissan Research Center Nissan Motor Co., Ltd., Natsushima-cho 1, Yokosuka-shi, Kanagawa 237, Japan;1. Key Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing, 210093, China;2. Centre for Audio, Acoustics and Vibration, Faculty of Engineering and IT, University of Technology Sydney, Sydney, NSW, 2007, Australia;1. Division of Emergency Medicine, Department of Medicine, University of Washington, Seattle, Washington;2. Department of Epidemiology, University of Washington, Seattle, Washington;3. Harborview Injury Prevention Center, Seattle, Washington;4. Division of Trauma, Department of Surgery, University of Washington, Seattle, Washington;1. Key Laboratory of Advanced Functional Materials, Autonomous Region, Institute of Applied Chemistry, Xinjiang University, Urumqi 830046, Xinjiang, China;2. Key Laboratory for Large-Format Battery Materials and Systems, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;1. Durham University, Department of Archaeology, Stockton Road, Durham, DH1 3LE, UK;2. Durham University, Department of Physics, Stockton Road, Durham, DH1 3LE, UK;3. Radiation Metrology, Public Health England, Didcot, OX11 0RQ, UK;1. Centro de Investigación de Tecnología de Vehículos, Universitat Politècnica de València, Camino de Vera s/n, Valencia 46022, Spain;2. School of Engineering and Design, Mechanical Engineering, Brunel University, Uxbridge, Middlesex UB8 3PH, UK |
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| Abstract: | This paper describes two kinds of newly developed polyester sound-absorbing materials. One mainly consists of modified 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 floor carpeting resulted in a significant improvement in sound insulation performance while achieving weight savings. |
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