Integrated manufacturing of REciclable multi-material COmposites for the TRANSport sector
Effects of tire?derived pyrolytic carbon black and pyrolytic heavy oil on the curing and mechanical properties of styrene?butadiene rubber composites
To examine various physical and mechanical properties, pyrolytic carbon black and pyrolytic heavy oil from the pyrolysis of scrap tires were combined with styrene?butadiene rubber. FESEM analysis was also used to analyze the compounds' morphology, and the results were correlated with mechanical properties.To investigate the potential effect of the pyrolytic carbon black (CBp) and pyrolytic heavy oil (HO), we incorporated them into styrene?butadiene rubber (SBR) as reinforcing filler and plasticizing agent, respectively. Since the industrial N330 CB's specific surface area and other specifications adhere to the CBp standard, it has been selected as a benchmark. To test HO's applicability, conventional (AO) was substituted with it. We experimented with the N330 and CBp in the 1/1 variant. We examined the impacts on the cure behavior, physical characteristics such as density and hardness, mechanical properties, abrasion resistance, dynamic mechanical performance, and thermal properties of the filled SBR composites. According to field emission (FESEM) and transmission electron microscopy (TEM) micrographs, the increased tensile and tear strength is due to N330 black's superior dispersion over CBp in the rubber matrix. Better dispersion in N330 type CB is also justified by lower tan ?max from the dynamic mechanical analysis (DMA) study. Utilizing HO changes the curing conditions since it comprises more sulfur, which accelerates the formation of sulfur–sulfur cross?links. Increased tensile and tear strengths, as well as improved dispersion in the rubber matrix, have been seen with the combined use of N330 and CBp. Meanwhile, HO could function well in place of commercially available AOs.HighlightsThe impact of scrap tires on human health and the environment is explored.Recovered carbon black (CB) from waste tire mixed with styrene?butadiene rubber in various ratios.Pyrolytic oil is also incorporated to check its reusability in tire formulation.Similar cure characteristics and mechanical strength were found in the composites.Replacement of the conventional CB is proposed with recovered black.
» Publication Date: 25/07/2023
This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement Nº 768737
