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Research on the Sustainable Reuse of Tire Textile Waste for the Production of Thermal Insulating Mats

Author

Listed:
  • Giedrius Balčiūnas

    (Laboratory of Thermal Insulating Materials and Acoustics, Institute of Building Materials, Faculty of Civil Engineering, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania)

  • Sigitas Vėjelis

    (Laboratory of Thermal Insulating Materials and Acoustics, Institute of Building Materials, Faculty of Civil Engineering, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania)

  • Saulius Vaitkus

    (Laboratory of Thermal Insulating Materials and Acoustics, Institute of Building Materials, Faculty of Civil Engineering, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania)

  • Jurga Šeputytė-Jucikė

    (Laboratory of Thermal Insulating Materials and Acoustics, Institute of Building Materials, Faculty of Civil Engineering, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania)

  • Arūnas Kremensas

    (Laboratory of Thermal Insulating Materials and Acoustics, Institute of Building Materials, Faculty of Civil Engineering, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania)

  • Agnė Kairytė

    (Laboratory of Thermal Insulating Materials and Acoustics, Institute of Building Materials, Faculty of Civil Engineering, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania)

Abstract

Waste tire textile fiber (WTTF), a secondary product from the processing of end-of-life tires, is predominantly disposed of through incineration or landfilling—both of which present significant environmental hazards. The incineration process emits large quantities of greenhouse gases (GHGs) as well as harmful substances such as dioxins and heavy metals, exacerbating air pollution and contributing to climate change. Conversely, landfilling WTTF results in long-term environmental degradation, as the synthetic fibers are non-biodegradable and can leach pollutants into the surrounding soil and water systems. These detrimental impacts emphasize the pressing need for environmentally sustainable disposal and reuse strategies. We found that 80% of WTTF was used for the production of thermal insulation mats. The other part, i.e., 20% of the raw material, used for the twining, stabilization, and improvement of the properties of the mats, consisted of recycled polyester fiber (RPES), bicomponent polyester fiber (BiPES), and hollow polyester fiber (HPES). The research shows that 80% of WTTF produces a stable filament for sustainable thermal insulating mat formation. The studies on sustainable thermal insulating mats show that the thermal conductivity of the product varies from 0.0412 W/(m∙K) to 0.0338 W/(m∙K). The tensile strength measured parallel to the direction of formation ranges from 5.60 kPa to 13.8 kPa, and, perpendicular to the direction of formation, it ranges from 7.0 kPa to 23 kPa. In addition, the fibers, as well as the finished product, were characterized by low water absorption values, which, depending on the composition, ranged from 1.5% to 4.3%. This research is practically significant because it demonstrates that WTTF can be used to produce insulating materials using non-woven technology. The obtained thermal conductivity values are comparable to those of conventional insulating materials, and the measured mechanical properties meet the requirements for insulating mats.

Suggested Citation

  • Giedrius Balčiūnas & Sigitas Vėjelis & Saulius Vaitkus & Jurga Šeputytė-Jucikė & Arūnas Kremensas & Agnė Kairytė, 2025. "Research on the Sustainable Reuse of Tire Textile Waste for the Production of Thermal Insulating Mats," Sustainability, MDPI, vol. 17(10), pages 1-19, May.
  • Handle: RePEc:gam:jsusta:v:17:y:2025:i:10:p:4288-:d:1651846
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