Chemical recycling of waste clothes: a smarter approach to sustainable development

Singhal, Shailey; Agarwal, Shilpi; Singhal, Naveen

doi:10.1007/s11356-023-26438-y

Cited by 11 publications

(2 citation statements)

References 171 publications

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“…This in turn generates copious amounts of textile waste per annum as the fashion cycle has been severely shortened (Bhardwaj 2010;Niinimäki et al 2020;Cuiffo et al 2021). Among the range of potential solutions including recycling (Singhal et al 2023), upcycling, incinerating, and reselling (thrifting), the possibility of composting and biodegradation for textiles comprised of natural fibers including cotton is an attractive alternative. Cotton is one of the most widely used fibers all over the world.…”

Section: Introductionmentioning

confidence: 99%

The compostability of denim fabrics dyed with various indigos

Alwala,

Perju,

Schwarz

et al. 2024

BioRes

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Denim fabric samples representing current indigo dye sources and fabric structures were biodegraded in feedstock including food waste, manure, and animal bedding, which are typically composted at the Cornell Farm Services Composting Facility and processed under laboratory conditions for 77 days. Indigo types including dry denim, pre-reduced, and natural did not inhibit degradation as compared to undyed 100% cotton fabric. Additionally, fabrics tested as received from the mill and those tested post scouring degraded effectively. As expected, denim containing 24% polyester and 2% spandex retained overall fabric structure despite degradation of the cotton portion of the yarns.

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Section: Introductionmentioning

confidence: 99%

The compostability of denim fabrics dyed with various indigos

Alwala,

Perju,

Schwarz

et al. 2024

BioRes

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“…Marlet and her studio FabBRICK used fabric scraps mixed with eco-friendly starchbased glue and moulded into bricks through a mechanical compression technique [16][17][18][19]. Improvements of up to 4% and 7% were observed in tensile and bending performances, respectively.…”

Section: Introductionmentioning

confidence: 99%

Recycled-Textile-Waste-Based Sustainable Bricks: A Mechanical, Thermal, and Qualitative Life Cycle Overview

Jamshaid,

Shah,

Shoaib

et al. 2024

Sustainability

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The textile industry, renowned for its comfort-providing role, is undergoing a significant transformation to address its environmental impact. The escalating environmental impact of the textile industry, characterised by substantial contributions to global carbon emissions, wastewater, and the burgeoning issue of textile waste, demands urgent attention. This study aims at identifying the feasibility of the future use of textile scraps in the construction and architecture industry by analysing the effect of different binders. In this study, synthetic knitted post-consumer-waste fabrics were taken from a waste market for use as a reinforcement, and different binders were used as the matrix. In the experiment phase, the waste fabrics were mixed with synthetic binders and hydraulic binders to form brick samples. The mechanical and thermal properties of these samples were tested and compared with those of clay bricks. In terms of mechanical properties, unsaturated polyester resin (UPR) samples showed the highest mechanical strength, while acrylic glue (GL) samples had the lowest mechanical strength. White cement (WC) samples showed moderate mechanical properties. Through several tests, it was observed that UPR samples showed the highest values of tensile, bending, and compressive strengths, i.e., 0.111 MPa, 0.134 MPa, and 3.114 MPa, respectively. For WC, the tensile, bending, and compressive strengths were 0.064 MPa, 0.106 MPa, and 2.670 MPa, respectively. For GL, the least favourable mechanical behaviour was observed, i.e., 0.0162 MPa, 0.0492 MPa, and 1.542 MPa, respectively. In terms of thermal conductivity, WC samples showed exceptional resistance to heat transfer. They showed a minimum temperature rise of 54.3 °C after 15 min, as compared to 57.3 °C for GL-based samples and 58.1 °C for UPR. When it comes to polymeric binders, UPR showed better thermal insulation properties, whereas GL allowed for faster heat transfer for up to 10 min of heating. This study explores a circular textile system by assessing the potential of using textile waste as a building material, contributing to greener interior design. This study demonstrated the usefulness of adding short, recycled PET fibres as a reinforcement in UPR composites. The use of the PET fibre avoids the need to use a surface treatment to improve interfacial adhesion to the UPR matrix because of the chemical affinity between the two polyesters, i.e., the PET fibre and the unsaturated polyester resin. This can find application in the construction field, such as in the reinforcement of wooden structural elements, infill walls, and partition walls, or in furniture or for decorative purposes.

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