This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Development of a Light-weight High-dampening Liquid-applied Sound Deadener Material
Technical Paper
2006-01-0508
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
We have developed a new liquid-applied sound deadener material (LASD) that replaces asphalt-type dampening materials to reduce both automotive weight and the workload of factory associates. Compared to a loss factor of 0.30, this LASD is 62% lighter than conventional materials; compared to an area weight of 2.4kg/m2, it displays a 172% higher loss factor.
This effect was obtained because the developed liquid-applied sound deadener material uses acrylic resin with a maximum tan δ at 34°C, with the expansion ratio set to 1.8 times. In addition, the viscosity of the liquid-applied sound deadener material was adjusted so the thixotropy would be high at shear speeds of 10 to 3000S-1 to minimize irregularities in the surface when a slit nozzle is used to apply the sound deadener material.
Recommended Content
Authors
Citation
Tsuruta, N., Noguchi, Y., and Suzuki, H., "Development of a Light-weight High-dampening Liquid-applied Sound Deadener Material," SAE Technical Paper 2006-01-0508, 2006, https://doi.org/10.4271/2006-01-0508.Also In
References
- Journal of Society of Automotive Engineers of Japan 50 5 29 1996
- Journal of Society of Automotive Engineers of Japan 36 12 1287 1982
- Okamura Seizo et al. Introduction to Polymer Properties and Polymer Science 2nd Kagakudojin 149 172
- Journal of the Japan Society of Colour Material 64 594 1991
- Journal of Adhesion Society of Japan 34 11 39