Recycled leather cutting waste-based boards: thermal, acoustic, hygrothermal and ignitability properties

Barbanera, Marco; Belloni, Elisa; Buratti, Cinzia; Calabrò, G.; Marconi, Marco; Merli, Francesca; Armentano, Ilaria

doi:10.1007/s10163-020-01024-3

Cited by 15 publications

(3 citation statements)

References 45 publications

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“…A reduction coefficient of 0.200 and 0.460 and transmission loss values of 25-42 dB and 25-33 dB were obtained, respectively. These results are in the same order of magnitude as other insulation panels used, revealing their potential in insulation applications (Barbanera et al, 2020). Utilizing textile fabrics waste and CM method, Juciene et al produced acoustic panels with threads disassembled from fabrics and leftovers in a square shape, employing corn starch as a binder in a ratio 1:1.…”

Section: Composite Productionmentioning

confidence: 80%

Valorization of textile waste: non-woven structures and composites

Alves,

Barreiros,

Fangueiro

et al. 2024

Front. Environ. Sci.

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Each year, millions of tons of clothing are both produced and discarded, exerting a substantial impact on the environment and public health. Even when textile waste is disposed of in landfills, it persistently adds to pollution in the air, water, and soil. This review explores the diverse implications of textile waste, examining circular economy principles and highlighting opportunities for transforming textile waste into eco-friendly materials. This review highlights opportunities to repurpose textile waste into new products, aligning with the principles of a circular economy. The discussed materials, such as cotton, wool, polyester, nylon, and kevlar, can be utilized in various industries, including construction, non-woven, furniture, carpet, agriculture, and paper. The alternative materials presented offer excellent mechanical, thermal, and acoustic properties, providing sustainable alternatives in applications ranging from civil construction to insulation and structure reinforcement, minimizing environmental impact. Green material alternatives enhance cost-effectiveness in constructing eco-friendly buildings, reducing the need for extracting new raw materials and minimizing the carbon footprint. It is expected that research on opportunities for recovering textile waste will soon intensify, leading to the implementation of these new eco-friendly products.

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Section: Composite Productionmentioning

confidence: 80%

Valorization of textile waste: non-woven structures and composites

Alves,

Barreiros,

Fangueiro

et al. 2024

Front. Environ. Sci.

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“…Very often, they are not only the cutting edges used to select the leather core where the defects are substantially absent; however, they represent the whole piece if the client does not accept the final quality. Unfortunately, respect for the promised leather quality can be assessed only when the whole process (tanning and finishing) is complete [ 12 , 13 , 14 ]. Accordingly, the problem generated by these scraps is not “only” environmental; it also has economic relevance.…”

Section: Introductionmentioning

confidence: 99%

A Circular Approach to Finished Tanned Leather: Regeneration by Cryogenic Technology

Salmi,

Gelosa,

Rossi

et al. 2023

Materials

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Finished tanned leather is usually covered by a thin polymeric layer. This layer has the scope to change the morphological aspect of the last leather layer as well as improve the impermeabilization properties. Often, the finished product is refused by the final client, and tanneries must restore significant quantities of materials. Therefore, it is very important to remove this finished polymeric layer, recover the underneath tanned leather, and predispose it to a new finishing. The bonding between the polymeric film and leather is so strong that, today, only a blade shaving process can perform this separation at the expense of also removing a layer of tanned leather and consequently reducing the leather thickness. Here, a novel separation method was developed based on the significant difference in the dilation properties between the tanned hide and the polymeric film at low temperatures. The use of cryogenic fluids, in particular the direct application of liquid nitrogen, can freeze the polymeric layer below the glass transition temperature, inducing brittle behavior. The result is an easy separation without any alteration of the tanned leather layer; for a demonstration of that, some techniques were used, such as FTIR, SEM, Tensile strength evaluation, DSC, and TGA. By this last analysis, it is possible to check how a decrease of weight to 90% happened for the polymeric layer at about 400 °C against the complete blank at about 600 °C. A similar great distance of results exists in the case of tensile strength, where an average value of 34.5% is the deformation stress for blank samples, against 34.8% for processed samples. Thus, the process here developed allows the reuse of the tanned leather towards a new life in respect of the principles of the circular economy.

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“…A significant part of the research is devoted to the recycling of materials and their subsequent use in the production of insulation materials for construction [ 14 , 15 , 16 ]. Research of insulating panels is focused mainly on their thermophysical, acoustic, hydrothermal, fire and environmental properties [ 17 , 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Flame Retardant Impregnation on Acoustic and Thermophysical Properties of Recycled Technical Textiles with the Potential for Use in Wooden Buildings

et al. 2021

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This article presents the results of an investigation of acoustic and thermophysical properties of insulation panels made from recycled technical textiles originating from the automotive industry. Measurements were performed on the samples of insulation panels (Senizol AT XX2 TL60), which were modified with liquid flame retardants (ISONEM® ANTI-FIRE SOLUTION, ECOGARD® B45, HR Prof). Another method of treatment was carried out by surface application of non-flammable facing (woven carbon fibre, nonwoven carbon fibre). Retardants were applied to the samples by surface spraying and soaking. The results showed a high ability of material to absorb sound in the frequency range 350 Hz–2 kHz. The sound absorption coefficient ranged from 0.82 to 0.9 in the frequency range 500 Hz–2 kHz. The noise reduction coefficient is 0.75. After material modification with the flame retardants, there was no significant change of sound absorption. The thermal conductivity coefficient of material before modification was 0.038 W⋅m−1⋅K−1. After application of the flame retardants, the thermal conductivity coefficient increased depending on type and method of retardant application in the range of 2.6–105.3%. The smallest change was detected after modification of material with ECOGARD® B45.

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Recycled leather cutting waste-based boards: thermal, acoustic, hygrothermal and ignitability properties

Cited by 15 publications

References 45 publications

Valorization of textile waste: non-woven structures and composites

Valorization of textile waste: non-woven structures and composites

A Circular Approach to Finished Tanned Leather: Regeneration by Cryogenic Technology

Influence of Flame Retardant Impregnation on Acoustic and Thermophysical Properties of Recycled Technical Textiles with the Potential for Use in Wooden Buildings

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