Modelling sound absorption properties for recycled polyethylene terephthalate-based material using Gaussian regression. Issue 2 (June 2021)

• Record Type: Journal Article
• Authors: Iannace, Gino; Ciaburro, Giuseppe
• Is Part Of: Building acoustics. Volume 28:Issue 2(2021)
• Page Start: 185
• Page End: 196
• Publication Date: 2021-06
• Subjects: Acoustic measurements -- Gaussian regression -- sound absorption coefficient -- porous materials -- recycled material -- polyethylene terephthalate; Soundproofing -- Periodicals; Architectural acoustics -- Periodicals; Acoustical engineering -- Periodicals; Acoustical engineering; Architectural acoustics; Soundproofing; Periodicals; 693.834
• DOI: 10.1177/1351010X20933132
• Languages: English
• ISSNs: 1351-010X

Abstract

Plastic is widely used all over the world and its production has been increasing continuously in recent years. But plastic presents significant problems about its end-of-life given its important environmental impact. These problems impose recycling policies which provide for the collection and recycling of plastic materials. In this work, the acoustic properties of a recycled polyethylene terephthalate-based material were analyzed. The material showed good sound-absorbing characteristics, especially at high frequencies. In addition, a numerical model based on the Gaussian regression was developed to simulate the sound absorption coefficient of the material. The model returned an R-Squared value of 0.97 demonstrating excellent performance.