Journal
AGRONOMY-BASEL
Volume 12, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/agronomy12081803
Keywords
acoustic absorption; insulation; valorization; composite; waste
Categories
Funding
- company Aitana [4/20]
- Actividades de Construcciones y Servicios, S.L. [4/20]
- Universidad Miguel Hernandez, Elche [4/20]
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The aim of this study was to determine the acoustic and thermal properties of particleboards made from mulberry wood pruning waste using urea formaldehyde resin (UF) as a binder. The results showed that these particleboards had low thermal conductivity and good sound absorption properties, and the mechanical performance also met the requirements. The particle size of the particleboards was the key factor affecting the acoustic properties.
The aim of this study was to determine the acoustic and thermal properties of particleboards made from mulberry wood pruning waste using urea formaldehyde resin (UF) as a binder. The investigation focused on the evaluation of the thermal conductivity and the acoustic absorption of the boards and the assessment of their feasibility for use in the construction sector. The mean thermal conductivity values of the particleboards (0.065-0.068 W/mK) were lower than those obtained in wood and similar to those in cork panels. The samples were tested with frequencies from 50 to 6300 Hz. In all cases, the results allowed us to conclude that they were better sound absorbers than commercial wood and plywood panels of the same average density for low frequencies, and with similar values for medium and high frequencies. The mechanical results reached the minimum requirement to be considered as boards for general use and, specifically with particles from 0.25 to 1.00 mm, for furniture according to European standards. The particle size of the particleboards was the variable that influenced all the acoustic properties, but did not affect the thermal conductivity. The experimental results indicated that the thermal and acoustic properties of these particleboards were promising for their application in commercial uses.
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