A novel approach of reapplication of carbon black recovered from waste tyre pyrolysis to rubber composites

Tian, Xiaolong; Zhuang, Qianxiao; Han, Shuhua; Li, Shaoming; Liu, Haichao; Li, Lin; Zhang, Jinxiu; Wang, Chuansheng; Bian, Huiguang

doi:10.1016/j.jclepro.2020.124460

Cited by 63 publications

(42 citation statements)

References 32 publications

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“…For the former, an additional advantage is the softer surface in case of a crash, for the latter, lifetime is enhanced in case of flying debris (pepples). From the patent description: "A soundproofing wall is described with a support frame (1) and with car tires axially cut at one point, which are divided into equal sectors (7) connected by film hinges (8) by radial incisions (6) in the side walls and connected to the support frame (1 ) fastened sector strips (9) are pulled apart, the sector strips (9) lined up one behind the other in the longitudinal direction forming layers lying on top of one another. In order to create advantageous constructional conditions, it is proposed that the sectors (7) of the sector strips (9) of adjacent layers are offset from one another by half a sector length and that the supporting structure (1) extends over the layers continuously and in a grid spacing corresponding to half the sector length Has connecting anchors (5) which penetrate the sectors (7) of the sector strips (9) in the longitudinal center and support the film hinges (8) between the sectors (7) of the sector strips (9) on the outside facing away from the incisions (6)."…”

Section: Innovative Use Of Waste Tyres I Acoustic Insulation Wallsmentioning

confidence: 99%

“…The invention reads: "An embankment fastening is described with reinforcement made of car tires divided along a center plane normal to the axis, with the side walls (4) resting on a substrate (1) and covered with soil. In order to create advantageous construction conditions, it is proposed that the axially severed sector strips (3), which are divided by radial incisions in the side walls (4) into equal sectors (5) connected to one another by film hinges (7), are placed on a grid (2) form, which in the area of the film hinges ( 7) and in the central area of the sectors (5) from the grid surface bent up parts (13) of grid bars (12) extending transversely to the longitudinal direction of the sector strips (3) has that the sector strips (3) in the middle of the sectors (5) are provided with push-through openings (10) in the tread (9) so that the bentout parts (13) of the bars (12) on the one hand support the film hinges (7) and on the other hand the treads (9) in the pushthrough openings ( 10) and that the sector strips (3) in the middle of the sectors (5) in the area of the edge bead (15) of the side walls (4) with a longitudinal sector strip fen (3) extending bars (11) are connected".…”

Section: Figurementioning

confidence: 99%

“…Use of waste tyres for artificial reef creation is an alternative application [4], [5]. A new approach is the pyrolysis of tyres to yield pyrolysis oil [6] as diesel replacement or carbon black [7] as pigment. Modified carbon black [8] has been studied as a higher-value product from waste tyres.…”

Section: Introductionmentioning

confidence: 99%

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Innovative use of waste tyres: Noise-barriers and geoengineering

Haas¹,

Markl²,

Lackner³

2020

World J. Adv. Eng. Tech. Sci.

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Globally, more than 1 billion waste tyres are produced every year, and environmentally friendly end-of-life scenarios are highly sought after. Incineration to capture energy is a common practice. An improvement to sustainability is a cascaded use, where worn-out tyres are first being deployed in a meaningful way, e.g. as noise barriers or as embankment stabilization, where they can add value for several years to decades, before they are incinerated. The novel innovative use cases for tyres were found to offer advantages for the environment, while saving costs over materials that are being deployed today. This paper presents two recent innovations with waste tyres by a private inventor, and also highlights critical success factors for this type of innovator. Perseverance is one character trait a private inventor has to demonstrate in order to land a true innovation, focus a critical activity. Waste tyres can be considered an underutilized raw material.

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Section: Innovative Use Of Waste Tyres I Acoustic Insulation Wallsmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

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Innovative use of waste tyres: Noise-barriers and geoengineering

Haas¹,

Markl²,

Lackner³

2020

World J. Adv. Eng. Tech. Sci.

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“…Waste tires from the automotive industry, commonly referred to as end-of-life tires (or ELTs), are among the largest and most problematic of these waste streams and hence demand further attention. ELT stockpiles are often associated with harmful environmental impacts, particularly when subjected to improper waste management techniques—that is, occupancy of valuable landfill space (owing to the tires’ low mass-to-volume ratio), water stagnation and air pollution (on ignition) [ 1 , 2 , 3 ]. To alleviate these burdens on the environment, particularly the need for landfilling, local communities and governmental agencies have been increasingly persuaded to recycle and reuse ELTs, as a construction material, within their infrastructure systems (e.g., pavements, embankments, retaining walls and bridge abutments).…”

Section: Introductionmentioning

confidence: 99%

Improved Shear Strength Performance of Compacted Rubberized Clays Treated with Sodium Alginate Biopolymer

et al. 2021

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This study examines the potential use of sodium alginate (SA) biopolymer as an environmentally sustainable agent for the stabilization of rubberized soil blends prepared using a high plasticity clay soil and tire-derived ground rubber (GR). The experimental program consisted of uniaxial compression and scanning electron microscopy (SEM) tests; the former was performed on three soil–GR blends (with GR-to-soil mass ratios of 0%, 5% and 10%) compacted (and cured for 1, 4, 7 and 14 d) employing distilled water and three SA solutions—prepared at SA-to-water (mass-to-volume) dosage ratios of 5, 10 and 15 g/L—as the compaction liquid. For any given GR content, the greater the SA dosage and/or the longer the curing duration, the higher the uniaxial compressive strength (UCS), with only minor added benefits beyond seven days of curing. This behaviour was attributed to the formation and propagation of so-called “cationic bridges” (developed as a result of a “Ca2+/Mg2+ ⟷ Na+ cation exchange/substitution” process among the clay and SA components) between adjacent clay surfaces over time, inducing flocculation of the clay particles. This clay amending mechanism was further verified by means of representative SEM images. Finally, the addition of (and content increase in) GR—which translates to partially replacing the soil clay content with GR particles and hence reducing the number of available attraction sites for the SA molecules to form additional cationic bridges—was found to moderately offset the efficiency of SA treatment.

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“…In this process, the rCB/latex dispersion was sprayed by a high pressure gas The sprayed out droplets were immediately dried and an improved dispersion was achieved. This consequently lead to reduced fillerfiller interactions and improved mechanical properties 57 .…”

Section: Recovered Carbon Black Reuse As Filler In Rubber Compoundsmentioning

confidence: 99%

Recoverd carbon black from waste tire pyrolysis

Anjum¹

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This chapter provides an overview of recycling routes with emphasis on scrap tires. Re-purposing of partly worn-out tires is briefly discussed. Pyrolysis of scrap tire rubber in particular is extensively reviewed. Various types of pyrolysis reactors and their influence on the pyrolytic products are described. Special emphasis is laid on the solid fraction of pyrolysis: recovered carbon black (rCB), its characteristics and potential reuse in tires. Upgrading processes of rCB by various after-treatments are reviewed. As a reference, fossil based carbon black manufacturing, its use as rubber reinforcing filler, and its key material characteristics are discussed. The differences between virgin and recovered carbon blacks in terms of material characteristics and performance are described. Current challenges in standardization of recovered carbon black against virgin carbon black standards are highlighted.

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A novel approach of reapplication of carbon black recovered from waste tyre pyrolysis to rubber composites

Cited by 63 publications

References 32 publications

Innovative use of waste tyres: Noise-barriers and geoengineering

Innovative use of waste tyres: Noise-barriers and geoengineering

Improved Shear Strength Performance of Compacted Rubberized Clays Treated with Sodium Alginate Biopolymer

Recoverd carbon black from waste tire pyrolysis

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