A potential utilization of end-of-life tyres as recycled carbon black in EPDM rubber

Sagar, M.; Nibedita, K.; Manohar, Neha; Kumar, K. Raj; Sanyal, Sankar P.; Pradnyesh, A.; Reddy, A. Babul; Sadiku, Rotimi; Gupta, Upendra Nath; Lachit, P.; Jayaramudu, J.

doi:10.1016/j.wasman.2018.01.003

Cited by 68 publications

(28 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, the solid yield should match the contents of fixed carbon and ash of the waste tire (approximately 35-40% of the waste tire weight). This carbonaceous material contains the carbon black (CB, between 80 and 90 wt.%) and the inorganic substances (between 10 and 20 wt.%) used in tire manufacture (Martínez et al, 2013c;Sagar et al, 2018) and for this reason, is commonly referred as pyrolytic carbon black (CBp). In addition, it can also contain extra carbonaceous residues onto the CBp surface as consequence of repolymerization reactions among the polymer-derivates, mainly depending on the pyrolysis severity (Chaala et al, 1996;Murillo et al, 2006;Roy et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Carbon black recovery from waste tire pyrolysis by demineralization: Production and application in rubber compounding

et al. 2019

View full text Add to dashboard Cite

Pyrolysis offers the possibility to convert waste tires into liquid and gaseous fractions as well as a carbon-rich solid (CBp), which contains the original carbon black (CB) and the inorganic compounds used in tire manufacture. Whilst both liquid and gaseous fractions can be valorized without further processing, there is a general consensus that CBp needs to be improved before it can be considered a commercial product, seriously penalizing the pyrolysis process profitability. In this work, the CBp produced in a continuous pyrolysis process was demineralized (chemical leaching) with the aim of recovering the CB trapped into the CBp and thus, producing a standardized CB product for commercial purposes. The demineralization process was conducted by using cheap and common reagents (HCl and NaOH). In this sense, the acid treatment removed most of the mineral matter contained in the CBp and concentration was the main parameter controlling the demineralization process. An ash content of 4.9 wt.% was obtained by using 60 min of soaking time, 60 °C of temperature, 10 mL/g of reagent/CBp ratio and HCl 4M. The demineralized CBp (dCBp) showed a carbon content of 92.9 wt.%, while the FRX analysis indicated that SiO 2 is the major component into the ash. The BET surface area was 76.3 m 2 /g, and textural characterizations (SEM/EDX and TEM) revealed that dCBp is composed by primary particles lower than 100 nm. Although dCBp showed a low structure, the surface chemistry was rich in surface acidic groups. Finally, dCBp was used in Styrene Butadiene Rubber (SBR) compounding, probing its technical feasibility as substitute of commercial CB N550.

show abstract

Section: Introductionmentioning

confidence: 99%

Carbon black recovery from waste tire pyrolysis by demineralization: Production and application in rubber compounding

et al. 2019

View full text Add to dashboard Cite

show abstract

“…In order to reuse ELTs waste, it is first necessary to change the tire into rubber particles using one of the following processes: (a) pyrolysis, (b) microwave, (c) cryogenic, or (d) microbiological [22][23][24].…”

Section: Denmark Croatiamentioning

confidence: 99%

“…The microbiological recycling process is a method that uses bacteria as microorganisms to promote the decomposition of the chemical structure of the ELTs, usually attacking the crosslinking of the vulcanization process. This breaks down vulcanized currents and generates smaller rubble particles and is intended for various purposes in the market [22][23][24].…”

Section: Denmark Croatiamentioning

confidence: 99%

Proposal to Reuse Rubber Waste from End-Of-Life Tires Using Thermosetting Resin

et al. 2019

View full text Add to dashboard Cite

Due to the increasing production of motor vehicles, a large amount of waste with different characteristics and compositions is generated, notably end-of-life tires, which are harmful to the environment when not properly disposed. Their composition contains contaminating chemical elements, resulting in negative impacts on the environment. This research aims to present a process that favors the recycling of rubber waste from end-of-life tires. For the construction of the state of the art and state of the technique, a review of the literature on end-of-life tire rubber, and a search on Google Patents and Espacenet was done using Methodi Ordinatio. For the experimental work, samples were made using concentrations of 20%, 40%, and 60% of end-of-life tire rubber particles, with the addition of thermoset polymeric matrix of isophthalic polyester resin, catalyst, and dyes. In order to evaluate the quality of the mixture, some tests with the material resulting from the mixture were performed: Izod impact strength, Shore D hardness, immersion density determination, flexural strength, and scanning electron microscopy analysis. The results from the tests indicate that the composition with 60% of rubber particles had better mechanical results than samples containing 20% and 40%. The tests also show that end-of-life tire particles promote chemical adsorption (interaction) with the thermoset polymer matrix, favoring the mechanical properties. The final results of this research are: the literature review and the search on granted patents showed that this study is original; the experimental work suggests that practical applications are possible, generating a new product, harder with a proportion of 60% of rubber particles, as indicated by the tests, with a smooth surface that does not require polishing. Thus, this research is characterized as innovative as well as having sustainable characteristics.

show abstract

“…Several research articles have been also reported based on the application of some other waste materials like rice husk , oil palm ash , fly ash , waste rubber , and so on in rubber composites. Very recently, Sagar et al reported the utilization of end‐of‐life tyres‐based recycle carbon black as potential filler in ethylene propylene diene rubber.…”

Section: Introductionmentioning

confidence: 99%

Understanding the reinforcing efficiency of waste eggshell‐derived nano calcium carbonate in natural rubber composites with maleated natural rubber as compatibilizer

Roy

Debnath

Raengthon

et al. 2019

Polymer Engineering & Sci

View full text Add to dashboard Cite

Calcium carbonate nanoparticles were synthesized from eggshell waste using ball mill treatment and characterized by Fourier transform infrared (FTIR), X‐ray diffraction (XRD), and field‐emission scanning electron microscopy (FESEM) analysis. Then, waste eggshell‐derived nano calcium carbonate (WESNCC) was used as filler to reinforce natural rubber (NR) composites with and without the presence of maleated natural rubber (MNR) as compatibilizer. MNR‐compatibilized NR/WESNCC composites showed remarkable enhancement in the torque difference, tensile, and thermal properties as compared to either uncompatibilized NR/WESNCC composites or unfilled NR system. Crosslinking degree measurements indicated excellent interfacial interaction between NR matrix and WESNCC in presence of MNR as compatibilizer. A probable mechanism is suggested to explain the interaction between NR matrix and WESNCC in the presence of MNR. This study provides unique way to develop WESNCC‐based rubber composites for future industrial and engineering application. POLYM. ENG. SCI., 59:1428–1436 2019. © 2019 Society of Plastics Engineers

show abstract

A potential utilization of end-of-life tyres as recycled carbon black in EPDM rubber

Cited by 68 publications

References 41 publications

Carbon black recovery from waste tire pyrolysis by demineralization: Production and application in rubber compounding

Carbon black recovery from waste tire pyrolysis by demineralization: Production and application in rubber compounding

Proposal to Reuse Rubber Waste from End-Of-Life Tires Using Thermosetting Resin

Understanding the reinforcing efficiency of waste eggshell‐derived nano calcium carbonate in natural rubber composites with maleated natural rubber as compatibilizer

Contact Info

Product

Resources

About