Recycled leather cutting waste-based boards: thermal, acoustic, hygrothermal and ignitability properties
- PDF / 1,655,634 Bytes
- 13 Pages / 595.276 x 790.866 pts Page_size
- 56 Downloads / 218 Views
ORIGINAL ARTICLE
Recycled leather cutting waste‑based boards: thermal, acoustic, hygrothermal and ignitability properties M. Barbanera1 · E. Belloni2 · C. Buratti2 · G. Calabrò1 · M. Marconi1 · F. Merli2 · I. Armentano3 Received: 19 December 2019 / Accepted: 19 March 2020 © Springer Japan KK, part of Springer Nature 2020
Abstract This study investigates the possibility to reuse finished leather scraps, produced by the leather goods industry during the cutting phase, for the preparation of innovative panels for thermal-noise building insulation. Experimental panels were prepared by chipping the leather cuttings, using polyvinylacetate binder, and pressing the paste in a mold through a mechanical press. Boards were tested for thermal and acoustic performance, thermal stability, hygrothermal, wettability and ignitability properties. Acoustic measurements by means of a Kundt’s tube, and thermal characterization by means of a small hot–box system were performed. The measured thermal conductivity was 0.104 W/(mK) and 0.108 W/(mK) for the 45 °C and 50 °C set-up hot temperatures, respectively. Concerning the acoustic performance, two panels with thickness of 18-mm and 28-mm were produced: they were characterized by a noise reduction coefficient of 0.46 and 0.20 and transmission loss values in the range of 25–33 dB and 25–42 dB, respectively. Results revealed that the leather cutting waste panels were characterized by interesting thermal and acoustic performance, which are of the same order of magnitude of other residual-based insulation panels. The other analyzed properties confirmed the potential application in building insulation. Keywords Leather cutting waste · Thermal conductivity measurements · Acoustic characterization · Thermal stability · Building insulating systems
Introduction Energy efficiency and environmental issues are becoming fundamental themes for the modern society, to guarantee a livable planet to future generations. In this context, the construction and building sector can be considered a major “polluter”, since it consumes a relevant quantity of energy (about 40% of the world consumption), water (about 25%), resources (about 40%), and it is responsible for a large part of the carbon dioxide emissions [1]. Most of the energy is consumed during the building use phase (e.g. heating, * M. Barbanera [email protected] 1
Department of Economics, Engineering, Society and Business Organization, University of Tuscia, 01100 Viterbo, Italy
2
Department of Engineering, University of Perugia, Via G. Duranti 67, 06125 Perugia, Italy
3
Department of Ecological and Biological Sciences (DEB), Tuscia University, Viale dell’Università, snc, 01100 Viterbo, Italy
ventilation and air conditioning systems) and a large part is lost through heat dispersion [2, 3]. Research on thermal insulation materials still represents an open issue to be investigated, to improve both the energy savings opportunities of future buildings. Next to energy consumption, also noise can be considered a critical typology of po
Data Loading...
