Valorization of Recycled Tire Rubber for 3D Printing of ABS- and TPO-Based Composites.

Fouad Laoutid,Soumaya Lafqir,Philippe Dubois,Antoniya Toncheva

doi:10.3390/ma14195889

Fouad Laoutid, Soumaya Lafqir + Show 2 more

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https://doi.org/10.3390/ma14195889

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Journal: Materials	Publication Date: Oct 8, 2021
Citations: 14	License type: CC BY 4.0

Affiliation: Materia Nova, University of Mons

Abstract

Vulcanized and devulcanized ground tire rubber microparticles have been used as a minor phase in acrylonitrile butadiene styrene copolymer (ABS) and thermoplastic polyolefins (TPO) for the development of materials with desired functionalities by 3D printing. These polymers have been selected because they (i) present part of the plastic waste generated by the automotive industry and (ii) have totally different properties (ABS for its stiffness and robustness and TPO for its softness and ductility). The study aims to improve the circular economy of the automotive industry by proposing a promising route for recycling the generated tire rubber waste. In this respect, emergent technology for plastic processing such as 3D printing is used, as part of the additive manufacturing technologies for the prolongated end of life of recycled plastics originated from automotive waste such as ABS and TPO. The obtained results revealed that (i) the composites are suitable for successful filament production with desired composition and diameter required for successful 3D printing by fused deposition modeling, and that (ii) the optimization of the composition of the blends allows the production of materials with interesting mechanical performances. Indeed, some of the investigated ABS-recycled rubber tire blends exhibit high impact properties as TPO-based composites do, which in addition exhibits elongation at break higher than 500% and good compression properties, accompanied with good shape recovery ratio after compression.

Highlights

IntroductionTire rubber waste could be valorized as a cost reduction additive into different materials, such as concrete [1], asphalt [2], and cement [3], and in polymers [4]
We focused our attention on the development of polymeric composite materials, containing tire rubber waste, by fused deposition modeling (FDM)
Based on the presented Thermogravimetric Analysis (TGA) and DTG thermograms (Figure 4), it was that thethat tirethe microparticles, independently of their induced a slight premature found tire microparticles, independently of nature, their nature, induced a slight premathermal degradation of theof polymer composites in comparison to the to pristine ture thermal degradation the polymer composites in comparison the pristine

Summary

Introduction

Tire rubber waste could be valorized as a cost reduction additive into different materials, such as concrete [1], asphalt [2], and cement [3], and in polymers [4]. Several studies and reviews [5,6,7] have already evidenced the interest and limitations of the incorporation of post-consumer tire waste as an additive into various polymeric materials. Different parameters, such as the nature of the polymeric matrix, the tire rubber content and composition, and the effect of the rubber particle size and dispersion state, have been reported as key factors directly affecting the mechanical properties of resulting composites. A great range of data have been acquired on materials properties prepared mainly by conventional polymer melt processing technologies, such as extrusion and injection/compression molding [5,6,7]

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