Evaluation of mechanical properties of polymer sandwich systems used for noise reduction purposes
Mateusz Kozioł, Krzysztof Nowacki, Jakub Wieczorek, Tomasz Małysa
Quarterly No. 3, 2015 pages 158-162
DOI:
keywords: mechanical properties, polymer foam, sandwich system, noise reduction
abstract The paper presents preliminary tests of an innovative laminar noise-dampening layered structure for industrial purposes, based on PUR foam containing a foam-recyclate. The test cycle included static tensile tests of foam specimens, acoustic dampening tests, technological gluing tests (foam layer with functional layers: magnetic foil and aluminium foil), foam and glue selection, static shear tests of the bonds between the foam layer and the functional layers. The results of the technological and the acoustic tests showed that application of the foam-based layered packet-structures is a very good method for noise-dampening of work-stands in industry. The demountable bond between the packet and the metalic wall is effective and simple to use. It enables application of the packet differentlyly on various work-stands. The static mechanical properties of the foams and of the glue-bonds were satisfactory and show the trouble-free, self-supporting behavior of the dampening packets.