Recycled PVC for energy-efficient window profiles: a comprehensive study of thermal and chemical properties

Abstract

Recycled polyvinyl chloride (PVC) is increasingly being explored as a substitute for virgin materials in industrial applications, particularly in the production of window profiles. However, the diverse composition of PVC waste, influenced by the presence of additives, impurities, and varying contamination levels, presents a challenge to achieving consistent material properties. This study aims to thoroughly characterize recycled PVC through techniques such as Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and inductively coupled plasma (ICP) spectroscopy. The focus is on assessing the physical, chemical, and thermal properties of the recycled material, with a particular emphasis on its thermal insulation performance. By comparing these results with standard specifications and those of virgin PVC, the study provides critical insights into the homogenization process and evaluates the suitability of recycled PVC for high-performance window profiles, offering a promising approach to material reuse in advanced industrial applications.