Next Article in Journal
Ultra Thin Poly-Si Nanosheet Junctionless Field-Effect Transistor with Nickel Silicide Contact
Next Article in Special Issue
Characterization of Early Age Curing and Shrinkage of Metakaolin-Based Inorganic Binders with Different Rheological Behavior by Fiber Bragg Grating Sensors
Previous Article in Journal
Some Properties of Densified Eastern Redcedar as Function of Heat and Pressure
Previous Article in Special Issue
On the Role of Processing Parameters in Producing Recycled Aluminum AA6061 Based Metal Matrix Composite (MMC-AlR) Prepared Using Hot Press Forging (HPF) Process
Article Menu
Issue 11 (November) cover image

Export Article

Open AccessArticle
Materials 2017, 10(11), 1277; doi:10.3390/ma10111277

Characterization of Sheep Wool as a Sustainable Material for Acoustic Applications

Centro de Tecnologías Físicas, Universitat Politècnica de València, EPS Gandia, C/Paraninf, 1, 46730 Grao de Gandia, Valencia, Spain
Centro de Tecnologías Físicas, Universitat Politècnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain
Author to whom correspondence should be addressed.
Received: 29 September 2017 / Revised: 2 November 2017 / Accepted: 3 November 2017 / Published: 7 November 2017
(This article belongs to the Special Issue Recycled Materials, Eco-design and 3D Printing)
View Full-Text   |   Download PDF [2159 KB, uploaded 7 November 2017]   |  


In recent years, natural materials are becoming a valid alternative to traditional sound absorbers due to reduced production costs and environmental protection. This paper reports the acoustical characterization of sheep wool. Measurements on normal incidence and diffuse-incidence sound absorption coefficients of different samples are reported. The airflow resistance has also been measured. The results prove that sheep wool has a comparable sound absorption performance to that of mineral wool or recycled polyurethane foam. An empirical model is used to calculate the sound absorption of sheep wool samples. A reasonable agreement on the acoustic absorption of all sheep wool samples is obtained. View Full-Text
Keywords: natural material; sound absorption; flow resistance; sheep wool; delany-bazley model natural material; sound absorption; flow resistance; sheep wool; delany-bazley model

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

del Rey, R.; Uris, A.; Alba, J.; Candelas, P. Characterization of Sheep Wool as a Sustainable Material for Acoustic Applications. Materials 2017, 10, 1277.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top