Upcycled textile and agricultural waste for thermal and acoustic insulation solutions

Basit Öğe Kaydı
dc.contributor.authorYalcin-Enis, Ipek
dc.contributor.authorKucukali-Ozturk, Merve
dc.contributor.authorSezgin, Hande
dc.date.accessioned2026-04-04T18:55:30Z
dc.date.available2026-04-04T18:55:30Z
dc.date.issued2026
dc.departmentİstanbul Bilgi Üniversitesi
dc.description.abstractThis study investigates a novel combination of materials, incorporating pantyhose and rice husk, to develop sustainable insulation panel candidates, an approach that has not been previously explored in the literature. Pantyhose, composed primarily of polyamide and elastane, are frequently discarded due to their short lifespan, while rice husks are a common agricultural by-product. Pantyhose waste was processed into fibers and formed into web structures using a carding machine. Two production methods were employed to create insulation panels: needle punching and hot pressing. For needle-punched panels, the fiber composition and number of layers (2-plied and 4-plied) were varied. Composite panels were produced in the same plies via hot pressing, incorporating polypropylene fibers as binders (10% wt.) and rice husks in powder or granule form (20% wt.). Key performance tests included sound absorption, thermal conductivity, air permeability, fiber composition, thickness, and density. Results showed that composite panels exhibited superior sound absorption, with the addition of rice husk powder further enhancing performance; the best-performing sample (C-4P-PW) reached a sound absorption coefficient of 0.74 at 2500 Hz. Conversely, needle-punched panels provided better thermal insulation, with sample N-2P-FB achieving the lowest thermal conductivity of 0.038 W m-1 K-1 due to its porous structure. This study highlights the potential of combining textile and agricultural waste to develop ecofriendly insulation materials, which are considered promising candidate materials pending further validation for building applications.
dc.description.sponsorshipIstanbul Technical University Sci-entific Research Projects Fund [MGA-2022-43672]
dc.description.sponsorshipThis study is supported by the Istanbul Technical University Sci-entific Research Projects Fund under grant no. MGA-2022-43672. The authors would like to thank Kardelen Pekgoz and Ayada Umut C & imath;ngay for assisting with the study conducted as part of their senior design project. The authors also express their gratitude to Penti and Hassan Textile for supporting pantyhose waste and polypropylene fibers.
dc.identifier.doi10.1016/j.grets.2025.100327
dc.identifier.doi10.1016/j.grets.2025.100327
dc.identifier.issn2949-7361
dc.identifier.issue2
dc.identifier.scopus2-s2.0-105024530413
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.grets.2025.100327
dc.identifier.urihttps://hdl.handle.net/11411/10446
dc.identifier.volume4
dc.identifier.wosWOS:001643798000001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherKeai Publishing Ltd
dc.relation.ispartofGreen Technologies and Sustainability
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20260402
dc.snmzKA_Scopus_20260402
dc.subjectPantyhose Waste
dc.subjectComposite Materials
dc.subjectRecycling
dc.subjectRice Husk
dc.subjectThermal Properties
dc.subjectAcoustic Properties
dc.titleUpcycled textile and agricultural waste for thermal and acoustic insulation solutions
dc.typeArticle

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