TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
Composite Materials Containing Textile Soundproofing
(Materiale compozite fonoabsorbante cu conţinut textil)
Vol LXV • No. 4/2013
Iuliana (Stamate) Iaşnicu
Colegiul Tehnic "Gh. Asachi", Sector 6, Bucureşti
e-mail: yulyanastamate@yahoo.com

 Keywords   noise absorbing composite materials, frequency, constant absorption

 Abstract
Pollution, in all its forms around us, suffocating us. It is absolutely necessary to a position in the fight against noise. Several variants are studied composite containing absorbent cloth, even textile waste. With increasing thickness of the material - the number of layers increases the efficiency of noise absorption. Materials with high specific gravity have good sound absorbing properties MF, and material type foam cell structure communicating spaces are very good at absorbing high frequency noises.

 Rezumat
Poluarea, în toate formele sale, este peste tot în din jurul nostru, ne sufocă. De aceea este absolut necesar să luăm o poziţie în lupta împotriva zgomotului. Sunt studiate mai multe variante de material compozit care conține materiale absorbante, chiar şi deşeuri textile. Eficiența de absorbţie a zgomotului creşte odată cu grosimea mai mare a materialului - când numărul de straturi creşte. Materialele cu greutate specifică mare au proprietăţi bune de absorbție a sunetului MF şi cele cu structura de tip spumă cu spaţii de comunicare între celule, sunt foarte bune la absorbţia zgomotelor de înaltă frecvenţă.



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