Application of Recycled Carpet Composite as a Potential Noise Barrier in Infrastructure Applications

Mishra, Kunal; Vaidyanathan, Ranji

doi:10.3390/recycling4010009

Cited by 10 publications

(12 citation statements)

References 15 publications

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“…The process was further scaled up to manufacture large scale (1 m × 1 m in size) composite panels with excellent sound absorption capabilities and mechanical properties, as reported by our previous work [8]. The present work is an extension of the works reported in [7,8], in this work we have extended the application of carpet structural composites as tooling material. The structural panels were fabricated with different low-cost room temperature cured polymer resins (epoxy, polyester, and polyurethane) infused through the nylon fibers with excellent surface quality and large sizes.…”

Section: Post-consumer Carpet Compositementioning

confidence: 75%

“…A novel technique has been reported in the past to recycle post-consumer waste carpet into composite panels based on a modified vacuum assisted resin transfer molding (VARTM) process [7]. The process was further scaled up to manufacture large scale (1 m × 1 m in size) composite panels with excellent sound absorption capabilities and mechanical properties, as reported by our previous work [8]. The present work is an extension of the works reported in [7,8], in this work we have extended the application of carpet structural composites as tooling material.…”

Section: Post-consumer Carpet Compositementioning

confidence: 98%

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The Use of Recycled Carpet in Low-Cost Composite Tooling Materials

2019

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More than 250,000 metric tons (600 million pounds) of carpet are dumped in landfills every year. That creates a significant concern regarding environmental deterioration and economic liability. It is therefore imperative to develop sustainable post-consumer carpet-based products for high-value engineering applications such as composite tooling. To be considered as an acceptable composite tooling material, the composite needs to meet certain required properties such as a low coefficient of thermal expansion, excellent compressive properties, and high a hardness value after repeated exposure to curing cycles. The tooling composites must also exhibit the ability to endure several curing cycles, without deteriorating the mechanical properties. In the present investigation, post-consumer carpet has been recycled in the form of structural composites for tooling applications. The recycled carpet composites have been reinforced with 0.5 wt.% of graphene nanoplatelets to modify the material properties of the carpet composites. The results from compressive and hardness experiments demonstrate that the recycled carpet preserved its mechanical integrity even after several curing cycles. This indicates that recycled carpet composites have the potential to be a low-cost composite tooling alternative for the industry.

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Section: Post-consumer Carpet Compositementioning

confidence: 75%

Section: Post-consumer Carpet Compositementioning

confidence: 98%

The Use of Recycled Carpet in Low-Cost Composite Tooling Materials

2019

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“…The presence, of used post-consumer carpet material at the landfilling is causing several environmental issues because the carpet fibers are non-biodegradable. Therefore, recycling of carpet as a structural composite serves as a motivation to address the problem of recycling waste carpet [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, several studies have been done on the recycling of the waste carpet into the structural composites using the vacuum-assisted resin transfer molding (VARTM) technique [4,5]. The main advantage of this recycling process is that it does not require any physical or chemical treatment of the carpet, and the process uses as-received carpet.…”

Section: Introductionmentioning

confidence: 99%

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The Influence of Nanoclay on the Flame Retardancy and Mechanical Performance of Recycled Carpet Composites

Mishra

Vaidyanathan

2019

Recycling

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In the present study, we recycled waste carpet using a vacuum-assisted resin transfer molding (VARTM) process. Three different variations of carpet composites were fabricated, namely, neat epoxy, clay-coated, and clay-infused carpet composites. The carpet composite samples were degraded hygrothermally as well as under a cyclic UV condensation condition. Presence of clay was shown to impede the moisture absorption and UV degradation in the carpet composites. Flexural properties also showed that the presence of clay slows the degradation process of the composites. The flame retardancy result indicated that the presence of clay in the polymer network decreases the ignition time of the carpet composites.

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Biocompatible organic coating fabrication via polymer/clay nanocomposites: Evaluation of mechanical improvements

Kandemir,

Donmez,

Can

2023

Polymer Composites

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This study focuses on achieving mechanical enhancements in biocompatible organic coatings. A solvent‐based method is employed to produce biocompatible nanocomposites using polyvinylpyrrolidone (PVP) and bentonite nanoclays (BNT) as constituents to achieve this objective. Subsequently, the nanocomposites are spin‐coated onto a glass substrate, resulting in smooth and defect‐free films with a thickness of 5 μm. Through instrumented‐indentation testing, it is observed that BNT reinforcement leads to significant improvements in mechanical properties. Specifically, the addition of 0.5, 1, and 5 wt% of BNT in PVP results in enhancements of 105%, 77%, and 430% in elastic modulus, respectively, while hardness is improved by 166%, 211%, and 448%, respectively. The considerable improvements in the composite modulus cannot be adequately explained by assuming perfect adhesion between the constituents of the composite (as suggested by the Halpin–Tsai model) or by considering the contributions from the interface/network of silicate layers (as proposed by the Modified Halpin–Tsai model). Instead, the significant enhancements in hardness and modulus values are primarily attributed to a notable increase in the BNT volume fraction, ranging from 4 to 9 times, occurring under the Berkovich tip due to the aggregated silicate layers. The findings highlight the role of aggregated silicate layers in enhancing both hardness and modulus and contribute to the development of advanced biocompatible coatings with improved mechanical properties.Highlights Enhanced mechanical properties in biocompatible coatings. Biocompatible nanocomposites of polyvinylpyrrolidone (PVP) and bentonite nanoclays (BNT). Spin‐coated nanocomposite films on glass: smooth, defect‐free, 5 μm thick. BNT reinforcement boosts elastic modulus and hardness of PVP. Aggregated silicate layers under compression drive substantial mechanical improvements.

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Application of Recycled Carpet Composite as a Potential Noise Barrier in Infrastructure Applications

Cited by 10 publications

References 15 publications

The Use of Recycled Carpet in Low-Cost Composite Tooling Materials

The Use of Recycled Carpet in Low-Cost Composite Tooling Materials

The Influence of Nanoclay on the Flame Retardancy and Mechanical Performance of Recycled Carpet Composites

Biocompatible organic coating fabrication via polymer/clay nanocomposites: Evaluation of mechanical improvements

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