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Vibration and Acoustic Damping of Flexible Polyurethane Foams Modified with a Hyperbranched Polymer

Andersson, Anna LU ; Lundmark, Stefan LU ; Magnusson, Anders and Maurer, Frans LU (2010) In Journal of Cellular Plastics 46(1). p.73-93
Abstract
The dynamic mechanical properties and acoustic damping of polyurethane (PU) foams loaded with a hyperbranched polymer (HBP) have been studied. The results show a significant modulus enhancement parallel to an increased vibration damping in the low frequency range of approximate to 1 Hz with increased amount of HBP. Furthermore, an increased acoustic damping in the frequency interval of 500-1600 Hz is observed with increasing amount of HBP. The origin of these property enhancements are sought in the morphology and the chemical composition of the PU foam. It has been found that no visible differences in cell sizes and strut thicknesses exist among the foams. However, FTIR reveals significant differences in chemical composition between the... (More)
The dynamic mechanical properties and acoustic damping of polyurethane (PU) foams loaded with a hyperbranched polymer (HBP) have been studied. The results show a significant modulus enhancement parallel to an increased vibration damping in the low frequency range of approximate to 1 Hz with increased amount of HBP. Furthermore, an increased acoustic damping in the frequency interval of 500-1600 Hz is observed with increasing amount of HBP. The origin of these property enhancements are sought in the morphology and the chemical composition of the PU foam. It has been found that no visible differences in cell sizes and strut thicknesses exist among the foams. However, FTIR reveals significant differences in chemical composition between the foams of different HBP content, indicating increased crosslinking. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
FTIR, crosslinking, polyurethanes, viscoelastic behavior, microstructure
in
Journal of Cellular Plastics
volume
46
issue
1
pages
73 - 93
publisher
SAGE Publications Inc.
external identifiers
  • wos:000274264100005
  • scopus:76649089278
ISSN
0021-955X
DOI
10.1177/0021955X09348670
language
English
LU publication?
yes
id
7cc0bb9e-54e5-47e5-9d68-32ca3d8ab08f (old id 1570694)
date added to LUP
2010-03-17 08:32:30
date last changed
2018-06-17 04:21:56
@article{7cc0bb9e-54e5-47e5-9d68-32ca3d8ab08f,
  abstract     = {The dynamic mechanical properties and acoustic damping of polyurethane (PU) foams loaded with a hyperbranched polymer (HBP) have been studied. The results show a significant modulus enhancement parallel to an increased vibration damping in the low frequency range of approximate to 1 Hz with increased amount of HBP. Furthermore, an increased acoustic damping in the frequency interval of 500-1600 Hz is observed with increasing amount of HBP. The origin of these property enhancements are sought in the morphology and the chemical composition of the PU foam. It has been found that no visible differences in cell sizes and strut thicknesses exist among the foams. However, FTIR reveals significant differences in chemical composition between the foams of different HBP content, indicating increased crosslinking.},
  author       = {Andersson, Anna and Lundmark, Stefan and Magnusson, Anders and Maurer, Frans},
  issn         = {0021-955X},
  keyword      = {FTIR,crosslinking,polyurethanes,viscoelastic behavior,microstructure},
  language     = {eng},
  number       = {1},
  pages        = {73--93},
  publisher    = {SAGE Publications Inc.},
  series       = {Journal of Cellular Plastics},
  title        = {Vibration and Acoustic Damping of Flexible Polyurethane Foams Modified with a Hyperbranched Polymer},
  url          = {http://dx.doi.org/10.1177/0021955X09348670},
  volume       = {46},
  year         = {2010},
}