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Short circuit valorization of thermoplastic waste for the conception by 3D printing of composite structures

Abstract : The management of plastic waste is a major problem that has yet to be resolved with a view to a more sustainable development of human activities. Among the possible solutions, recycling is an interesting way to recycle non-renewable materials. After decades of centralized recycling, there is now a growing interest in approaches based on distributed recycling. Taking advantage of the democratization of open-source 3D printing technologies (OS), we propose to revalorize locally the plastics that can be used by these technologies. This distributed recycling can be considered as a kind of "intelligent network", composed of small coordinated recycling units, which provide recycled plastic filaments to the 3D printing community. The technical feasibility of this plastic recycling approach has been proven in the literature. However, its feasibility from a supply chain and logistics perspective has yet to be demonstrated. In order to address this issue, this research thesis seeks to provide answers to the following research question: Under what conditions is it possible to deploy a sustainable network of local and distributed plastics recycling using open-source 3D printing technologies? Taking into account the above, this research work aims to propose a framework for the analysis and evaluation, from a sustainability perspective, of the distributed plastic recycling approach for 3D printing. The proposed evaluation framework combines optimization and system dynamics in the evaluation of the sustainability of the recycling approach. The application of the evaluation framework to a specific case study of a university seeking to implement a distributed recycling demonstrator to recover 3D printing waste from middle and high schools in northeastern France illustrated the feasibility from a sustainability perspective.
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Submitted on : Wednesday, June 9, 2021 - 11:02:59 AM
Last modification on : Thursday, June 10, 2021 - 3:48:04 AM

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  • HAL Id : tel-03254847, version 1


Pavlo Santander Tapia. Short circuit valorization of thermoplastic waste for the conception by 3D printing of composite structures. Engineering Sciences [physics]. Université de Lorraine, 2020. English. ⟨NNT : 2020LORR0229⟩. ⟨tel-03254847⟩



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