Developing a compression moulded thermal insulation panel using postindustrial textile waste

Dissanayake, Geetha; Weerasinghe, Dakshitha; Wijesinghe, Kavindu; Kalpage, K.M.D.M.P.

doi:10.1016/j.wasman.2018.08.001

Cited by 71 publications

(38 citation statements)

References 16 publications

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“…Fibras de PET apresentam um adequada capacidade de isolamento térmico, similar à lã e à madeira, sobretudo podem ser misturadas com fibras naturais diminuindo seu impacto ambiental [10]. A reciclagem de poliéster para produção de outros compósitos com resíduos da indústria textil com espuma de poliuretano e fibras de poliamida também podem ser empregados para produção de mantas de isolamento térmico [11,12].…”

Section: Resultsunclassified

Reciclagem de clichês descartados da impressão flexográfica para produção de compósitos com aplicações para o isolamento acústico e térmico

Maciel

Nascimento

2020

Matéria (Rio J.)

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RESUMO A flexografia é um método bastante utilizado na impressão de embalagens plásticas flexíveis, onde o clichê é uma placa de impressão resiliente fotopolimerizada. Os clichês são dificilmente reciclados, porque adquirem uma estrutura molecular reticulada, gerando também graves problemas ambientais no seu descarte final, logo que, apresentam um período de decomposição indeterminado. Consequentemente, as empresas precisam aterrar os clichês após o seu tempo de vida. Atualmente, não existem produtos ou métodos de reciclagem deste material. Portanto, o objetivo deste trabalho é reciclar os clichês descartados para a produção de placas para isolamento acústico e térmico. Desenvolveu-se um método de cominuição do material com uma adequada granulometria. As misturas feitas com clichê e PET triturado, prensados a uma temperatura de 350°C, obtiveram uma elongação de 22% até a ruptura com alta flexibilidade. Adicionou-se até 90% de clichê reaproveitado nas composições estudadas. O isolamento térmico do compósito foi 18% inferior ao de um laminado de madeira com espessura similar. Em contrapartida, o isolamento acústico com as placas de clichê mostrou um aumento de 30% na capacidade de isolamento acústico, principalmente na faixa de frequência acima de 2 kHz, mostrando uma potencial aplicação para isolamento.

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Section: Resultsunclassified

Reciclagem de clichês descartados da impressão flexográfica para produção de compósitos com aplicações para o isolamento acústico e térmico

Maciel

Nascimento

2020

Matéria (Rio J.)

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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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“…Loose recycled fibers are then used within the standard methods of producing nonwoven textiles [15,16,24]. As tested by several researchers [11,25,26], insulation materials can also be produced as composites by applying heat and pressure [24]. They all have in common that they used mixed waste textile such as nylon and polyurethane [26] or polyester and polyurethane [11] and various other materials and combinations [20,24,25] with or without nonwoven fabric encasing.…”

Section: Introductionmentioning

confidence: 99%

“…As tested by several researchers [11,25,26], insulation materials can also be produced as composites by applying heat and pressure [24]. They all have in common that they used mixed waste textile such as nylon and polyurethane [26] or polyester and polyurethane [11] and various other materials and combinations [20,24,25] with or without nonwoven fabric encasing. Another more advanced option for recycling of polymeric waste plastic is chemical method applying the depolymerization with technologies such as hydrolysis, glycolysis, methanolysis, ammonolysis and aminolysis.…”

Section: Introductionmentioning

confidence: 99%

Recycling of Nonwoven Polyethylene Terephthalate Textile into Thermal and Acoustic Insulation for More Sustainable Buildings

Antolinc

Filipič

2021

Polymers

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The construction and building sector is responsible for a large share of energy and material used during the life cycle of a building. It is therefore crucial to apply a circular economy model within the process wherever possible to minimize the impact on the environment. In this paper, the possibility of producing thermal and acoustic boards from industrial nonwoven waste textile is studied and presented. The nonwoven polyester textile obtained directly from the production line in the form of strips and bales was first shredded into smaller fractions and then in the form of pile compressed with a hot press to form compact thermal insulation boards. The first set of specimens was prepared only from waste polyester nonwoven textile, whereas the second set was treated with sodium silicate in order to check the material’s reaction to fire performance. The experimental work was conducted to define the acoustic properties, reaction to fire behavior and thermal conductivity of the produced specimens. The obtained results show that the thermal conductivity coefficient of specimens without added water glass dissolution is near to the values of conventional materials used as thermal insulation in buildings. The reaction to fire testing proved that the addition of water glass actually propagates the progressive flame over the entire product. It can be concluded that the presented thermal insulation can be used as an adequate and sustainable solution for building construction purposes.

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Developing a compression moulded thermal insulation panel using postindustrial textile waste

Cited by 71 publications

References 16 publications

Reciclagem de clichês descartados da impressão flexográfica para produção de compósitos com aplicações para o isolamento acústico e térmico

Reciclagem de clichês descartados da impressão flexográfica para produção de compósitos com aplicações para o isolamento acústico e térmico

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

Recycling of Nonwoven Polyethylene Terephthalate Textile into Thermal and Acoustic Insulation for More Sustainable Buildings

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