IPROBYQ   25157
INSTITUTO DE PROCESOS BIOTECNOLOGICOS Y QUIMICOS ROSARIO
Unidad Ejecutora - UE
artículos
Título:
Optimization of properties in a rubber compound containing a ternary polymer blend using response surface methodology
Autor/es:
SANCHEZ, GASTÓN; BORTOLATO, SANTIAGO; LOMBARDI, ALDO; BOSCHETTI, CARLOS E.; SALVATORI, PABLO E.; NICOCIA, ESTEBAN
Revista:
JOURNAL OF APPLIED POLYMER SCIENCE
Editorial:
JOHN WILEY & SONS INC
Referencias:
Lugar: New York; Año: 2018 vol. 135 p. 1 - 9
ISSN:
0021-8995
Resumen:
In order to find the best combination of three synthetic rubbers, that is, styrene-butadiene rubber (SBR) grade 1712, SBRgrade 1721 and high-1,4-cis polybutadiene, that produce a compound with specific end-use properties, a statistical experimentaldesign is proposed in this work. The design consists of ten mixtures containing specific amounts of total styrene and BR content. Anumber of properties are tested in each mixture, selecting those related to requirements for the tread of a high performance tire: glasstransition temperature (Tg), the ratio between the viscous modulus and the elastic modulus (tand@60 8C), Mooney viscosity, and thetensile properties. The values obtained for each property are fit to statistically significant models, obtaining the respective responsesurfaces. These are next used to define a desirable formulation with the optimal ratio of each rubber, and finally the optimized formulationis validated by comparing the experimental and predicted values for each modeled property.