| Autor: |
Nikitakos V; Laboratory of Polymer Technology, School of Chemical Engineering, Zographou Campus, National Technical University of Athens, 15780 Athens, Greece., Porfyris AD; Laboratory of Polymer Technology, School of Chemical Engineering, Zographou Campus, National Technical University of Athens, 15780 Athens, Greece., Beltsios K; Laboratory of Polymer Technology, School of Chemical Engineering, Zographou Campus, National Technical University of Athens, 15780 Athens, Greece., Papaspyrides C; Laboratory of Polymer Technology, School of Chemical Engineering, Zographou Campus, National Technical University of Athens, 15780 Athens, Greece., Bordignon S; NIS Interdepartmental Centre, Department of Chemistry, University of Torino, 10125 Torino, Italy., Chierotti MR; NIS Interdepartmental Centre, Department of Chemistry, University of Torino, 10125 Torino, Italy., Nejrotti S; NIS Interdepartmental Centre, Department of Chemistry, University of Torino, 10125 Torino, Italy., Bonomo M; NIS Interdepartmental Centre, Department of Chemistry, University of Torino, 10125 Torino, Italy., Barolo C; NIS Interdepartmental Centre, Department of Chemistry, University of Torino, 10125 Torino, Italy., Piovano A; National Reference Center for Electrochemical Energy Storage (GISEL)-INSTM, 50121 Firenze, Italy.; GAME Lab, Department of Applied Science and Technology (DISAT), Politecnico di Torino, 10129 Torino, Italy., Pfaendner R; Fraunhofer Institute for Structural Durability and System Reliability LBF, 64289 Darmstadt, Germany., Yecora B; LUREDERRA Technological Centre, Perguita Industrial Area, 31210 Los Arcos, Spain., Perez A; LUREDERRA Technological Centre, Perguita Industrial Area, 31210 Los Arcos, Spain. |
| Abstrakt: |
Polyvinyl butyral (PVB) is widely used as an interlayer material in laminated glass applications, mainly in the automotive industry, but also for construction and photovoltaic applications. Post-consumed laminated glass is a waste that is mainly landfilled; nevertheless, it can be revalorized upon efficient separation and removal of adhered glass. PVB interlayers in laminated glass are always plasticized with a significant fraction in the 20-40% w / w range of plasticizer, and they are protected from the environment by two sheets of glass. In this work, the aim is to develop a thorough characterization strategy for PVB films. Neat reference PVB grades intended for interlayer use are compared with properly processed (delaminated) post-consumed PVB grades from the automotive and construction sectors. Methods are developed to open opportunities for recycling and reuse of the latter. The plasticizer content and chemical nature are determined by applying well-known analytical techniques, namely, FT-IR, TGA, NMR. The issue of potential aging during the life cycle of the original laminated material is also addressed through NMR. Based on the findings, a sensor capable of directly sorting PVB post-consumer materials will be developed and calibrated at a later stage. |
