An environmentally friendly sound insulation material from post-industrial textile waste and natural rubber

Dissanayake, Geetha; Weerasinghe, Dakshitha; Thebuwanage, L.M.; Bandara, Upali

doi:10.1016/j.jobe.2020.101606

Cited by 53 publications

(33 citation statements)

References 13 publications

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“…The literature shows the addition of natural fillers, such as stone groundwood, waste orange pruning fibers, or olive stones, can increase the ability of polypropylene to absorb some sound frequencies [ 26 , 27 , 28 , 29 ]. Sound absorption depends on the intrinsic properties of the materials, the size, cross-section, and dispersion of the particles, and the density, thickness, and porosity of the composite material [ 29 ]. Sound waves can be transmitted through the material, or can be absorbed or reflected.…”

Section: Introductionmentioning

confidence: 99%

Characterization of CaCO3 Filled Poly(lactic) Acid and Bio Polyethylene Materials for Building Applications

et al. 2021

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Noise pollution has been identified as a cause of a broad spectrum of diseases, motivating researchers to identify building materials capable of attenuating this pollution. The most common solution is the use of gypsum boards, which show a good response for low frequencies but have a poorer response for high frequencies. In addition, due to environmental concerns associated with buildings, the use of materials that minimize environmental impacts must be favored. In this research, two biopolymers, a poly(lactic) acid and a bio-polyethylene, were filled with two typologies of calcium carbonate, and their soundproofing properties were tested using impedance tubes. In addition, the morphology of the fillers was characterized, and here we discuss its impact on the mechanical properties of the composites. The results showed that the incorporation of calcium carbonate into bio-based thermoplastic materials can represent a strong alternative to gypsum, because their mechanical properties and sound barrier performance are superior. In addition, the inclusion of mineral fillers in thermoplastic materials has a positive impact on production costs, in addition to preserving the advantages of thermoplastics in terms of processing and recycling. Although the use of carbonate calcium decreases the mechanical properties of the materials, it enables the production of materials with insulation that is four-fold higher than that of gypsum. This demonstrates the potential of these materials as building lightweight solutions.

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Section: Introductionmentioning

confidence: 99%

Characterization of CaCO3 Filled Poly(lactic) Acid and Bio Polyethylene Materials for Building Applications

et al. 2021

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“…However, this method does not allow for a quick assessment of acoustic efficiency of complex structures. Without the development of procedures and measurement methodology taking into account the specific requirements for this type of measurements it is difficult to determine whether a combination of sound insulating materials will meet its purpose [16][17][18][19]. Preliminary results of such tests presented in this paper should enable such assessment and will allow to determine what steps should be taken in order to test acoustic effectiveness giving unambiguous and repeatable results [20].…”

Section: General Test Methodologymentioning

confidence: 99%

Measurements of sound isolation by multi-layer materials or structures

Deuszkiewicz¹

2021

Diagnostyka

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A sound barrier is a structure or device that reduces the level of airborne sound. The basic tasks of such a construction are to provide acoustic insulation and sound absorption. There are many materials available on the market ready to use as such structures used for soundproofing passenger vehicles, construction machinery, power units, etc. In this case, however, the practical use of ready-made materials for minimizing noise requires the use of barriers more complicated in construction than those made of a single material. Thus, each time it is necessary to adjust acoustic parameters of barrier to the individual characteristics of equipment whose acoustic emission we want to reduce. Tests according to standards of such structures require work-and time-consuming and expensive research, e.g. special rooms are required for do this (reverberation and anechoic chambers), which are not always available. In this paper, the author proposes a comparative measurement using a simplified method, which can be used in industrial conditions or small measurement laboratories.

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“…[17][18][19][20][21] This significantly enhances the mechanical properties of NR, and its tensile strength could exceed 20 MPa without any reinforcing fillers. [22][23][24][25][26][27][28][29] Therefore, NR is in great demand in the rubber industries.…”

Section: Natural Rubbersmentioning

confidence: 99%

Current trends in bio‐based elastomer materials

Tang

Wang

et al. 2022

SusMat

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Elastomers play an irreplaceable role in our society due to their unique properties. Natural rubber is directly obtained from plants and is widely used in tires, shoes, etc. Recently, modified natural rubbers are proposed to expand the application of natural rubber. However, these natural rubbers have a limited variety of molecular structures and may not be able to meet ever-demanding applications. Traditional synthetic elastomers have a variety of molecular structures and their properties are used in various fields, but mainly originate from fossil resources. This review deals with bio-based elastomers, and more specifically natural rubber and bio-based synthetic elastomers. Based on reprocessability, bio-based elastomers can also be divided into bio-based chemically cross-linked ones and thermoplastic ones. Compared to traditional fossil-based elastomers, bio-based ones may alleviate environmental pollution and promote the sustainable development of the elastomer industry. K E Y W O R D Sbio-based elastomers, chemically cross-linked, natural rubber, synthetic rubber INTRODUCTIONElastomers are polymeric materials possessing low modulus and high elasticity, and can rapidly recover their orig-This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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An environmentally friendly sound insulation material from post-industrial textile waste and natural rubber

Cited by 53 publications

References 13 publications

Characterization of CaCO3 Filled Poly(lactic) Acid and Bio Polyethylene Materials for Building Applications

Characterization of CaCO3 Filled Poly(lactic) Acid and Bio Polyethylene Materials for Building Applications

Measurements of sound isolation by multi-layer materials or structures

Current trends in bio‐based elastomer materials

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