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Optimization of properties in a rubber compound containing a ternary polymer blend using response surface methodology
Author(s) -
Salvatori Pablo E.,
Sánchez Gastón,
Lombardi Aldo,
Nicocia Esteban,
Bortolato Santiago A.,
Boschetti Carlos E.
Publication year - 2018
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.46548
Subject(s) - polybutadiene , materials science , styrene butadiene , natural rubber , mooney viscosity , ternary operation , composite material , synthetic rubber , viscosity , polymer , modulus , glass transition , response surface methodology , ultimate tensile strength , elastomer , copolymer , styrene , chromatography , chemistry , computer science , programming language
In order to find the best combination of three synthetic rubbers, that is, styrene‐butadiene rubber (SBR) grade 1712, SBR grade 1721 and high‐1,4‐cis polybutadiene, that produce a compound with specific end‐use properties, a statistical experimental design is proposed in this work. The design consists of ten mixtures containing specific amounts of total styrene and BR content. A number of properties are tested in each mixture, selecting those related to requirements for the tread of a high performance tire: glass transition temperature ( T g ), the ratio between the viscous modulus and the elastic modulus (tanδ@60 °C), Mooney viscosity, and the tensile properties. The values obtained for each property are fit to statistically significant models, obtaining the respective response surfaces. These are next used to define a desirable formulation with the optimal ratio of each rubber, and finally the optimized formulation is validated by comparing the experimental and predicted values for each modeled property. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46548.