A Conceptual Design and Numerical Analysis for a Small-Scale and Low-Cost Plastic Recycling Machine

Le, Anh Tuan; Doan, Hoang D.; Ngo, Loc P.; Huynh, Ly T.; Huynh, Tuan N.; Phan, Huy T.; Thanh, Tran Trung

doi:10.1051/e3sconf/20199302007

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…The increasing demands for utilising plastic products in packaging and the awakened environmental concerns remain the significant drivers of plastic recycling, and investment costs and profit difficulties also lead to the challenges of attracting large-scale investors [55,56]. Currently, there are no agreed data on the appropriate capacity that constitutes small-scale recycling.…”

Section: Small-scale Plastics Recyclingmentioning

confidence: 99%

Small-Scale Mechanical Recycling of Solid Plastic Wastes: A Review of PET, PEs, and PP

Uzosike¹,

Yee²,

Padilla³

2022

Preprint

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Mechanical recycling of solid plastic wastes on a small-scale level can be accomplished with the correct approaches. Thermoplastics are mostly considered for mechanical recycling because of their physical properties and ease of reprocessing. This paper reviews the mechanical reprocessing techniques of selected thermoplastics (polyethylene terephthalate and polyolefins) since they constitute a significant proportion of plastics used commercially. Furthermore, necessary considerations for effective operation of small-scale plants, including energy requirements of machinery and optimisation in order to improve efficiency and product quality, are discussed. A clearer understanding and addressing of the process-related challenges will lead to successful establishment and management of small-scale mechanical recycling facilities to benefit communities. Efficient small-scale mechanical reprocessing establishments have become essential in reducing the environmental impacts of solid plastic wastes and for energy conservation.

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Section: Small-scale Plastics Recyclingmentioning

confidence: 99%

Small-Scale Mechanical Recycling of Solid Plastic Wastes: A Review of PET, PEs, and PP

Uzosike¹,

Yee²,

Padilla³

2022

Preprint

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“…One of the known causes of mechanical damage in moving metallic parts, such as the failure of automotive bearings, is associated with the passage of electric currents in response to voltages developed upon friction . This type of wear can be prevented by a material of high electrical resistance; hence, combined with their ease of manufacturing, light weight, and the resistance to oxidation in air, plastics offer unique engineering advantages over metals . In contrast, being electrical insulators, plastics cannot be effectively grounded.…”

mentioning

confidence: 99%

Static Electrification of Plastics under Friction: The Position of Engineering‐Grade Polyethylene Terephthalate in the Triboelectric Series

et al. 2019

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There is an emerging trend to replace moving metallic parts, such as bearings or bushes, with plastic components. The electrostatic hazard associated with plastic components subject to mechanical friction is well documented, but the magnitude as well as physical–chemical origin of this phenomenon remains debated. Using atomic force microscopy and Faraday pail measurements, the triboelectrification of Ertalyte®, a commonly used bearing‐grade formulation of polyethylene terephthalate, when rubbed against other polymers and metals, is studied. The sign and magnitude of the net charge that Ertalyte® gains in relation to the chemical nature—electron affinity and ionization energy—of the contacting material are analyzed, concluding that this material should be located toward the negative end of the triboelectric series. It is also shown that large charge densities and fast charge decays result from contact of Ertalyte® with polymers of a small Derjaguin–Muller–Toporov (DMT) modulus and unstable ions, suggesting that ion transfer leads to the electrification of a dynamic insulator/insulator contact. These findings have immediate implications in the choice of the material used to manufacture plastic parts subject to friction and wear and to help address ongoing fundamental questions over the nature of the charge carriers that leads to static electricity.

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Small-Scale Mechanical Recycling of Solid Thermoplastic Wastes: A Review of PET, PEs, and PP

2023

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The mechanical recycling of solid plastic waste on a small-scale level can be accomplished with the correct approaches. Thermoplastics are the types of plastic mostly considered for mechanical recycling because of their physical properties and ease of reprocessing. This paper reviews the mechanical reprocessing techniques of selected thermoplastics (polyethylene terephthalate and polyolefins), since they constitute a significant proportion of the plastics used commercially. Furthermore, necessary considerations for the effective operation of small-scale plants, including energy requirements of machinery and optimisation in order to improve efficiency and product quality, are discussed. A clearer understanding and addressing of the process-related challenges will lead to the successful establishment and management of small-scale mechanical recycling facilities to benefit communities. Efficient small-scale mechanical reprocessing establishments have become essential in reducing the environmental impacts of solid plastic waste and for energy conservation.

show abstract

A Conceptual Design and Numerical Analysis for a Small-Scale and Low-Cost Plastic Recycling Machine

Cited by 3 publications

References 4 publications

Small-Scale Mechanical Recycling of Solid Plastic Wastes: A Review of PET, PEs, and PP

Small-Scale Mechanical Recycling of Solid Plastic Wastes: A Review of PET, PEs, and PP

Static Electrification of Plastics under Friction: The Position of Engineering‐Grade Polyethylene Terephthalate in the Triboelectric Series

Small-Scale Mechanical Recycling of Solid Thermoplastic Wastes: A Review of PET, PEs, and PP

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