Revista UIS Ingenierías

Vol. 13 No. 2 (2014): Revista UIS Ingenierías
Articles

Comparative study of alumina and carbon black as reinforcing fllers in natural rubber mixtures

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  • Juan Carlos Posada-Correa,
  • Leyla Yamile Jaramillo-Zapata,
  • Luis Alberto García,
  • Paola Andrea Villegas-Bolaños,
  • Carlos Andres Vargas-Isaza
Juan Carlos Posada-Correa
Instituto Tecnológico Metropolitano-ITM
Bio
Leyla Yamile Jaramillo-Zapata
Instituto Tecnológico Metropolitano-ITM
Bio
Luis Alberto García
Instituto Tecnológico Metropolitano-ITM
Bio
Paola Andrea Villegas-Bolaños
Instituto Tecnológico Metropolitano-ITM
Bio
Carlos Andres Vargas-Isaza
Instituto Tecnológico Metropolitano-ITM
Bio

Published 2014-03-03

Keywords

  • natural rubber,
  • carbon black,
  • nano alumina,
  • micro alumina,
  • vulcanization

How to Cite

Posada-Correa, J. C., Jaramillo-Zapata, L. Y., García, L. A., Villegas-Bolaños, P. A., & Vargas-Isaza, C. A. (2014). Comparative study of alumina and carbon black as reinforcing fllers in natural rubber mixtures. Revista UIS Ingenierías, 13(2), 59–67. Retrieved from https://revistas.uis.edu.co/index.php/revistauisingenierias/article/view/59-67
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Abstract

The formulation of compounds of rubbers is the art and science of selecting and combining rubber and additives in order to produce a compound with the chemical, physical and mechanical properties required in the fnished product and to make possible easier processing conditions.

Rubber formulations generally involve different compounds, each one with a specifc function, and therefore they have an impact on the properties and processing costs of the fnal product. These compounds can be classifed in the following categories: polymers (natural or synthetic rubber), vulcanization system (vulcanizing agents, accelerator, activator or inhibitor), fllers (reinforcing or not reinforcing), antidegradant (antioxidant, antiozonant), lubricants and extenders, pigments and other special additives.

In this work, the addition of carbon black and alumina (Al2O3) as reinforcing fllers in natural rubber, was investigated. 
Rheological, mechanical and morphological properties were evaluated by using a vulcanization reometer, a Shore A durometer, a Universal Testing Machine and optical microscopy techniques. The results showed that both fllers had an effect mainly on tensile strength, hardness and viscosity.

The article aims to contribute to the rubber industry once they require knowing the effects generated by the participation of black fllers and white fller for natural rubber composites

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