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Carbon black distribution driven by its concentration and its effect on physico-mechanical properties of styrene butadiene rubber and butadiene rubber miscible rubber blends |
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| Authors: | Abitha Vayyaprontavida Kaliyathan Ajay Vasudeo Rane Sabu Thomas |
| Affiliation: | 1. School of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala, India
Contribution: Conceptualization (lead), Formal analysis (equal), Methodology (lead);2. Materials Research Laboratory, Department of Mechanical Engineering, KMEA Engineering College, Cochin, Kerala, India Composite Research Group, Department of Mechanical Engineering, Durban University of Technology, Durban, South Africa Contribution: Formal analysis (supporting), Writing - original draft (supporting), Writing - review & editing (supporting);3. School of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala, India |
| Abstract: | This paper discusses the influence of partitioning of carbon black (CB) with its increasing concentration (i.e., 10, 20, 30, 40, and 50 phr) on physical and static mechanical properties of Styrene Butadiene Rubber (SBR)/Butadiene Rubber (BR) rubber–rubber blends (RRB's) in 70SBR:30BR blend ratio. Partitioning of CB towards BR in CB-filled SBR/BR RRB's is quantitatively determined via dynamic mechanical analysis (DMA). DMA confirmed increased partitioning of CB towards BR phase with increasing CB. DMA data on the partitioning of CB towards BR were in good agreement with nuclear magnetic spectra obtained by solid-state nuclear magnetic resonance spectroscopy (SS-NMR spectroscopy). Curing properties, relative density, hardness, tensile test, tear test, and transmission electron microscopy (TEM) on CB filled SBR/BR RRB's were carried out to determine the effect of increasing concentration of CB on physical, mechanical, and dispersion characteristics in comparison to neat SBR/BR RRB's. |
| Keywords: | carbon black concentration partitioning physico-mechanical test rubber–rubber blends |