Sound velocity and loss factor of polyurethane composites. Part I.
The paper reports development of elastic, unfoamed polyurethane compositions to be used as vibro-insulating materials. The examined compositions were prepared using poly(propylenoethers) of different molecular weights, toluylene diisocyanate and glass microspheres separated from fly-ashes. The effec...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2014-05-01
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| Series: | Archives of Acoustics |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1240 |
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| author | W. BANDERA K. PAWLACZYK |
| author_facet | W. BANDERA K. PAWLACZYK |
| author_sort | W. BANDERA |
| collection | DOAJ |
| description | The paper reports development of elastic, unfoamed polyurethane compositions to be used as vibro-insulating materials. The examined compositions were prepared using poly(propylenoethers) of different molecular weights, toluylene diisocyanate and glass microspheres separated from fly-ashes. The effect of varied proportions of components on visco-elastic properties of the material, that is on sound velocity and loss factor was examined experimentally. The measurements were taken at room temperature within frequency range of 20Hz to 1000Hz. It was discovered that modification of the polyurethane binder content and alteration of the number of microspheres in a composition permit modification of properties of the material and especially its stiffness and internal damping. |
| format | Article |
| id | doaj-art-780ffa76cba2463ab346ba5965cb4f70 |
| institution | Kabale University |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2014-05-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-780ffa76cba2463ab346ba5965cb4f702025-08-20T03:50:48ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2014-05-01163-4Sound velocity and loss factor of polyurethane composites. Part I.W. BANDERA0K. PAWLACZYK1Laboratory of Applied Acoustics and Spectroscopy, Gdańsk UniversityInstitute of Chemical Technology, Technical University of SzczecinThe paper reports development of elastic, unfoamed polyurethane compositions to be used as vibro-insulating materials. The examined compositions were prepared using poly(propylenoethers) of different molecular weights, toluylene diisocyanate and glass microspheres separated from fly-ashes. The effect of varied proportions of components on visco-elastic properties of the material, that is on sound velocity and loss factor was examined experimentally. The measurements were taken at room temperature within frequency range of 20Hz to 1000Hz. It was discovered that modification of the polyurethane binder content and alteration of the number of microspheres in a composition permit modification of properties of the material and especially its stiffness and internal damping.https://acoustics.ippt.pan.pl/index.php/aa/article/view/1240 |
| spellingShingle | W. BANDERA K. PAWLACZYK Sound velocity and loss factor of polyurethane composites. Part I. Archives of Acoustics |
| title | Sound velocity and loss factor of polyurethane composites. Part I. |
| title_full | Sound velocity and loss factor of polyurethane composites. Part I. |
| title_fullStr | Sound velocity and loss factor of polyurethane composites. Part I. |
| title_full_unstemmed | Sound velocity and loss factor of polyurethane composites. Part I. |
| title_short | Sound velocity and loss factor of polyurethane composites. Part I. |
| title_sort | sound velocity and loss factor of polyurethane composites part i |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1240 |
| work_keys_str_mv | AT wbandera soundvelocityandlossfactorofpolyurethanecompositesparti AT kpawlaczyk soundvelocityandlossfactorofpolyurethanecompositesparti |