Biocomposites for sound absorption
Eulalia Gliścińska, Magdalena Kaczor, Aleksandra Milc, Aleksandra Misztela, Patrycja Warczyk, Izabella Krucińska
Quarterly No. 3, 2019 pages 107-111
DOI:
keywords: biocomposite, sound absorption, thermoplastic matrix, nonwoven
abstract The use of natural materials to produce various types of products is becoming increasingly more popular, which also applies to composite products. The advantages of such products are not always high strength indicators, but above all their ecological character. In this respect, the best solution is to choose natural raw materials for both the reinforcement and the matrix of the composite. New possibilities of using biocomposites are increasingly being sought. A promising direction for the development of such composites is medical, construction, automotive, single-use products, or even recreational products. The paper presents the functional features of biocomposites made on the basis of various materials from renewable sources. Determining the sound absorption coefficient for thin, rigid composite plates, the possibilities of using wood flakes, sawdust, cork, paper, straw, feather calamus and flax fibers as reinforcement in sound-absorbing composites were evaluated and compared. The results of the research showed differences in the level of sound absorption, depending both on the type of reinforcement material and the frequency range of the sound.