An Additive Manufacturing Solution to Produce Big Green Parts from Tires and Recycled Plastics

Domingues, Jorge; Marques, Tânia; Mateus, Artur; Carreira, Pedro; Malça, Cândida

doi:10.1016/j.promfg.2017.08.028

Cited by 35 publications

(16 citation statements)

References 13 publications

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“…The enhancement in the flexural strength of the remanufactured composite was ascribed to the development of a strong fibre-matrix interface (Tian et al 2017b). Domingues et al (2017) manufactured composites made of 40% PP and 60% tyre waste through FDM. The composite exhibited a maximum tensile strength of 6.4 MPa.…”

Section: Polymers/composites Made From Recycled Materials Through Fdmmentioning

confidence: 99%

Polymer Recycling in Additive Manufacturing: an Opportunity for the Circular Economy

et al. 2020

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This article is a short review of the circular material economy and recycling in the additive manufacturing (AM) of polymers. In the recent years, there has been a surge regarding the production of numerous products through AM of various polymers. AM can provide an opportunity for a better manufacturing solution to facilitate productivity and sustainability in the circular economy. AM with a circular economy approach can provide adequate incentives for the recycling and reuse of polymers. It is therefore crucial to analyse the possibilities of recycling and reuse of polymers in AM. Some ongoing research has attempted to remanufacture polymers from recycled materials. This is necessary because polymer waste is a critical threat to the environment making an effective end-of-life treatment imperative. This review aims to provide a holistic view of recycling and reuse of AM materials. Studies investigating remanufactured feedstock materials and polymers as well as composites have been reviewed. The findings point to the fact that there are significant opportunities for recyclable polymers to be used in the development of AM products.

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Section: Polymers/composites Made From Recycled Materials Through Fdmmentioning

confidence: 99%

Polymer Recycling in Additive Manufacturing: an Opportunity for the Circular Economy

et al. 2020

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“…Single-layer test prints were carried out, with maximal tensile strength and elongation measured 6 MPa and 0.03%. Analysis of thermal flow during melting and crystallization was carried out, with the filled material having less severe crystallization peaks compared to unfilled PP (Domingues et al , 2017).…”

Section: State Of the Artmentioning

confidence: 99%

Use of polymer concrete for large-scale 3D printing

Krcma

Škaroupka

Vosynek

et al. 2021

RPJ

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Purpose This paper aims to focus on the evaluation of a polymer concrete as a three-dimensional (3D) printing material. An associated company has developed plastic concrete made from reused unrecyclable plastic waste. Its intended use is as a construction material. Design/methodology/approach The concrete mix, called PolyBet, composed of polypropylene and glass sand, is printed by the fused deposition modelling process. The process of material and parameter selection is described. The mechanical properties of the filled material were compared to its cast state. Samples were made from castings and two different orientations of 3D-printed parts. Three-point flex tests were carried out, and the area of the break was examined. Computed tomography of the samples was carried out. Findings The influence of the 3D printing process on the material was evaluated. The mechanical performance of the longitudinal samples was close to the cast state. There was a difference in the failure mode between the states, with cast parts exhibiting a tougher behaviour, with fractures propagating in a stair-like manner. The 3D-printed samples exhibited high degrees of porosity. Originality/value The results suggest that the novel material is a good fit for 3D printing, with little to no degradation caused by the process. Layer adhesion was shown to be excellent, with negligible effect on the finished part for the longitudinal orientation. That means, if large-scale testing of buildability is successful, the material is a good fit for additive manufacturing of building components and other large-scale structures.

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“…Same researches were made to print big parts with green materials as polymeric materials with tire, cork, wood or stone pow loads. [19] To print big parts, a robotic arm coupled with a 3D printing tool and a platform with the capacity of adjusting to the final product is suggested. The idea of the adjustable platform is to unused the support material to support the part while printing.…”

Section: Ddm For Big Parts: Digital Twin Approachmentioning

confidence: 99%

“…That tool is an extruder capable of processing pellets instead of wire to manufacture the recycled material. It is controlled directly by the robot so that the process is done automatically [19].…”

Section: Direct Digital Manufacturing and Polymersmentioning

confidence: 99%

Industry 4.0 - Digital Twin Applied to Direct Digital Manufacturing

Vitorino

Ribeiro

Silva

et al. 2019

AMM

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Marinha Grande is a city in Leiria’s district, Portugal. Marinha Grande is known as the moulding city, influenced by the glass, plastic and rapid manufacturing industry. Its history comes from the 18th century with the first glass factory. In order to improve technological development in the local industry, Centre for rapid and sustainable product development (CDRsp) was established in 2007.With that historical know-how and data-based moulding manufacturing, this work goal is to link that data with today’s technology, implementing the Industry 4.0. That information would be stored in a Cloud-Based Design and Manufacturing (CBDM) as well as the real-time operational data. Accessing to that cloud, the design and production engineers can work together to digitally create a product without having to stop the machinery.To implement these concepts, this paper suggests a Digital Twin (DT) to take advantage of the historical information allied to the existent industrial machinery. It suggests a digital twin of a robotic arm with an additive or hybrid manufacturing tool, printing big parts (e.g. garden benches or urban furniture) with reused materials such as tire, cork, wood or stone pow loads.

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An Additive Manufacturing Solution to Produce Big Green Parts from Tires and Recycled Plastics

Cited by 35 publications

References 13 publications

Polymer Recycling in Additive Manufacturing: an Opportunity for the Circular Economy

Polymer Recycling in Additive Manufacturing: an Opportunity for the Circular Economy

Use of polymer concrete for large-scale 3D printing

Industry 4.0 - Digital Twin Applied to Direct Digital Manufacturing

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