| 제목 |
MICROMECHANICS MODEL FOR RUBBER BLENDS FILLED BY A NANO-REINFORCED DEVULCANIZED RECYCLED RUBBER: APPLICATION IN THE AUTOMOTIVE INDUSTRY
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| 분야 |
Body and Safety |
| 언어 |
English |
| 저자 |
Seyed Kamal Jalali(Università di Trento), James Busfield(Queen Mary University of London), Nicola Pugno (Università di Trento) |
| Key Words |
Nano reinforcement, End-of-life tires (ELTs), Devulcanization, Recycled rubber, Halpin-Tsai (H-T) |
| 초록 |
The present report proposes a micromechanics model for predicting the dynamic modulus of rubber blends consisting of a base rubber and devulcanized recycled rubbers reinforced by nanofillers. A four-step hierarchical homogenization is established to relate the properties of components from the nano-sized reinforcements to the macro-scaled final blend. The developed model accounts for the effect of agglomeration and geometry of nano-fillers, the quality of the devulcanization process, and the properties of the interphase surrounding the nanofillers on the dynamic modulus of the rubber blend. A comprehensive dimensionless parametric study is performed whose output in terms of graphical maps can be used as a design guideline for practical cases in industries like automotive. A case study for recycled end-of-life tires (ELTs) reinforced by nano clays is presented and it is found that the nano reinforcement of devulcanized rubbers has a remarkable potential to compensate for the weakness compared to its virgin counterpart.
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