Determination of cross-link density in natural rubber for different systems of vulcanization

• Grant number: 17/16769-2
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: February 01, 2018
• End date: April 30, 2020
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Renivaldo José dos Santos
• Grantee: Arthur Pimentel de Carvalho
• Host Institution: Universidade Estadual Paulista (UNESP). Campus de Rosana. Rosana , SP, Brazil
• Associated scholarship(s): 19/16375-0 - Determination of cross-link density in natural rubber for different systems of vulcanization, BE.EP.IC

Abstract

The project consist in the obtainment of composts of natural rubber (NR) healed in three systems of vulcanization, the efficient (EV), semi-efficient (SEV) and the conventional (CV). The blend will be made in one cylinder mixer open and the slab will be confectioned by thermo pressing in a rectangular shape of thickness with 2 mm so can be realized the studies of his properties physics and chemistry. The composts will be characterized utilizing the technics of analysis of rheometry, aging accelerated thermally, density, hardness, density of crusade connections by swelling with organic solvents utilizing the equation of Flory-Rehner and with the nuclear magnetic resonance (NMR). (AU)