Sound Absorption: Dependence of Rubber Particles Impurities in Tyre Textile Fibre

Ružickij, Robert; Grubliauskas, Raimondas

doi:10.2478/rtuect-2022-0025

Cited by 5 publications

(2 citation statements)

References 23 publications

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“…The trace amounts of metals in waste tire-derived textile fibers influence the acoustic performance of their composite materials in sustainable building applications. The tiny amounts of impurities also decrease their sound absorption coefficient in insulation building applications [ 75 ]. PS and polyurethane (PU) foams are primarily for thermal insulation building components.…”

Section: Waste Tire-derived Recycled Filler-tailored Ps Compositesmentioning

confidence: 99%

Recycling Functional Fillers from Waste Tires for Tailored Polystyrene Composites: Mechanical, Fire Retarding, Electromagnetic Field Shielding, and Acoustic Insulation Properties—A Short Review

Zhang,

Liu,

Sablani

et al. 2024

Materials

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Polymer waste is currently a big and challenging issue throughout the world. Waste tires represent an important source of polymer waste. Therefore, it is highly desirable to recycle functional fillers from waste tires to develop composite materials for advanced applications. The primary theme of this review involves an overview of developing polystyrene (PS) composites using materials from recycled tires as fillers; waste tire recycling in terms of ground tire rubbers, carbon black, and textile fibers; surface treatments of the fillers to optimize various composite properties; and the mechanical, fire retarding, acoustic, and electromagnetic field (EMI) shielding performances of PS composite materials. The development of composite materials from polystyrene and recycled waste tires provides a novel avenue to achieve reductions in carbon emission goals and closed-loop plastic recycling, which is of significance in the development of circular economics and an environmentally friendly society.

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Section: Waste Tire-derived Recycled Filler-tailored Ps Compositesmentioning

confidence: 99%

Recycling Functional Fillers from Waste Tires for Tailored Polystyrene Composites: Mechanical, Fire Retarding, Electromagnetic Field Shielding, and Acoustic Insulation Properties—A Short Review

Zhang,

Liu,

Sablani

et al. 2024

Materials

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“…Studies showed that it has potential, as its sound absorption coefficient (NRC value) was 0.56. Ružickij and Grubliauskas [36] made the first attempts to investigate the sound absorption coefficient of WTTF, and investigating the dependence of rubber remains on the sound absorption capability. They found out that an increase in rubber remains decreases sound absorption coefficient.…”

Section: Introductionmentioning

confidence: 99%

Development of Composite Acoustic Panels of Waste Tyre Textile Fibres and Paper Sludge

et al. 2023

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Since society is moving towards sustainable development, interest in secondary use of waste has recently become significant. This paper investigates a process to develop an acoustic material, using two types of waste. Composite acoustic panels were developed using waste tyre textile fibres (WTTF) and paper sludge (PS), and polyvinyl acetate (PVA) were used as a binder. Non-acoustic (bulk density, airflow resistivity) and acoustic (sound absorption coefficient, sound transmission loss) parameters were studied. Composite acoustic panels with different proportions of WTTF/PS/PVA (sixteen samples) were subjected to testing for the sound absorption coefficient according to ISO 10534-2 and sound transmission loss according to ASTM E2611. The density of all samples varied between 155.2 and 709.9 kg/m3, the thickness between 14.4 and 20.5 mm, and the airflow resistivity between 29.5 and 101.5 kPa∙s/m2. The results reveal that the proportion of various waste materials in mixtures can improve the acoustic performance of panels. The combination that gives the highest αavg. with a value of 0.50 was experimentally found to be 70% WTTF mixed with 15% PVA and 15% H2O. The average sound absorption coefficient with a value of 0.46 was also found to be 25% WTTF mixed with 25% PS and 25% PVA and 25% H2O. In sound transmission loss, the most effective was 50% PS and the 50% PVA composite, the TLeq was 28.3 dB, while the composites together with 30% WTTF, 20% PS and 25% PVA, and 25% H2O showed 18.9 dB loss. The results obtained using WTTF and/or PS wastes are attractive and show great and promising development potential.

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Integration of Acoustic Metamaterials Made of Plastic to Improve Building Acoustics

Naimušin,

Januševičius

2024

Environmental and Climate Technologies

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According to the Waste Management Policy of the European Union, the recycling and reuse of various wastes is considered the most environmentally friendly and advanced waste disposal technology that has the least impact on the environment. By applying the principles of the Circular Economy, plastic waste will extend its life cycle and will be used as secondary materials to create metamaterial structures with improved sound absorption and insulation properties. The aim of this study was to determine plastic potential for use in acoustic structures. Acoustic metamaterial resonators, created from plastic, were measured in an impedance tube according to standards ISO 10534-2 for their sound absorbing and ASTM E2611 for their insulating properties. Two types of plastic, PLA and recycled PET-G, were used in acoustic metamaterial 3D printing process. For sound insulation, combined resonator systems were used to control symmetrical wall sound resonance. Sound absorption of both PLA and PET-G metamaterials were peaking at 1600 Hz with 0.93 and 0.89 sound absorption coefficient, respectfully. The results showed that combined constructions with plastic metamaterials can be integrated into building structures and used as an alternative for improving building acoustics, reducing indoor noise and reverberation time.

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Sound Absorption: Dependence of Rubber Particles Impurities in Tyre Textile Fibre

Cited by 5 publications

References 23 publications

Recycling Functional Fillers from Waste Tires for Tailored Polystyrene Composites: Mechanical, Fire Retarding, Electromagnetic Field Shielding, and Acoustic Insulation Properties—A Short Review

Recycling Functional Fillers from Waste Tires for Tailored Polystyrene Composites: Mechanical, Fire Retarding, Electromagnetic Field Shielding, and Acoustic Insulation Properties—A Short Review

Development of Composite Acoustic Panels of Waste Tyre Textile Fibres and Paper Sludge

Integration of Acoustic Metamaterials Made of Plastic to Improve Building Acoustics

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