Characterization of the mechanical, rheological and determination of density crosslinked in styrene butadiene rubber (SBR) via swell and nuclear magnetic resonance

• Grant number: 17/23496-2
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: February 01, 2018
• End date: July 09, 2020
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Renivaldo José dos Santos
• Grantee: Harison Franca dos Santos
• Host Institution: Universidade Estadual Paulista (UNESP). Campus de Rosana. Rosana , SP, Brazil
• Associated scholarship(s): 19/16057-8 - Characterization of mechanical, rheological behavior and determination density of crosslinks in rubber of butadiene styrene (SBR) via swelling and nuclear magnetic resonance, BE.EP.IC

Abstract

In this research project will be prepared styrene butadiene rubber (SBR) compounds in different vulcanization systems in which the crosslinking processes will be investigated by rheometric analysis, thermally accelerated aging, hardness, density and also crosslink densities in two techniques, swelling with organic solvents and nuclear magnetic resonance (NMR), in order to compare the results of both techniques and correlate them with the other results obtained, since the procedure by organic solvents is a destructive method and the analysis via NMR is extremely effective generating excellent qualitative and quantitative results, besides not degrading the material. (AU)