University of Twente Student Theses
Compounding and characterization of tire tread compounds using funtionalized rubber
Rezelman, SA (2023) Compounding and characterization of tire tread compounds using funtionalized rubber.
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| Abstract: | Recent EU regulations to reduce CO2 emissions from passenger cars have driven automotive manufacturers to research new materials and technologies to make their vehicles more efficient. One of these aspects is reducing rolling resistance of the tires, which makes vehicles more fuel efficient. This reduction in rolling resistance must be achieved while also maintaining or improving tire safety and longevity. Rolling resistance has already been reduced significantly with the introduction of the “Green Tire”, a tire tread consisting of synthetic elastomer blends combined with a silica/silane filler system. Improvements can still be made by modifying the elastomer with functionalized groups, which can improve the interaction between the silica filler material and the elastomer. In this research, model tire tread compounds were produced using a variety of functionalized and non-functionalized elastomers, combined with varying silica filler types and contents. Multiple aspects of these compounds were characterized, such as their processibility, curing behavior and their (dynamic) mechanical properties. Based on these results, it was concluded that functionalization of an elastomer has an impact on almost every aspect of tire tread design, with the processability of the compound being negatively affected by a filler-elastomer interaction that occurs before curing of the compound, increasing its viscosity. However, the usage of a functionalized rubber in a model tire tread compound results in a reduction in the rolling resistance indicator tan(δ), while not having any significant effects on the mechanical properties. |
| Item Type: | Essay (Master) |
| Faculty: | ET: Engineering Technology |
| Subject: | 51 materials science, 52 mechanical engineering |
| Programme: | Mechanical Engineering MSc (60439) |
| Link to this item: | https://purl.utwente.nl/essays/96281 |
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