Optimization of properties in a rubber compound containing a ternary polymer blend using response surface methodology
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 consis...
| Authors: | , , , , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2018 |
| Country: | Argentina |
| Institution: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repository: | CONICET Digital (CONICET) |
| Language: | English |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/86760 |
| Online Access: | http://hdl.handle.net/11336/86760 |
| Access Level: | Open access |
| Keyword: | BLENDS MANUFACTURING MECHANICAL PROPERTIES RUBBER THERMAL PROPERTIES https://purl.org/becyt/ford/2.5 https://purl.org/becyt/ford/2 |
| Summary: | 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 (Tg), 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. |
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