Mechanical and Barrier Properties of Bromo-Butyl Elastomers Filled with Electrochemically Exfoliated Graphene Academic Article uri icon

abstract

  • AbstractIn this paper, the effects of graphene loading and processing technique on the morphological, mechanical, thermal, rheological, and barrier properties of bromobutyl rubber, are explored. Bromobutyl rubber composites with electrochemically exfoliated graphene (EEG) nanosheet filler are prepared via solvent casting and/or melt blending techniques, and their properties are compared against a carbon black control sample. Even though analysis of the EEG composites via microscopy reveals agglomeration problems not present in the carbon black controls, EEG composite samples are observed to have improved barrier properties over carbon black samples in exchange for slightly reduced stress and strain at break. Extensional rheological analysis of the bromobutyl rubber composites reveals strain hardening phenomena in all the samples and higher extensional modulus in solvent castedmelt blended (SCM) samples. As a result of better dispersion over the solely meltblended samples, the SCM rubber composites exhibit superior tensile modulus and extensional modulus compared to the samples that are solely meltblended.

published proceedings

  • MACROMOLECULAR MATERIALS AND ENGINEERING

altmetric score

  • 1

author list (cited authors)

  • Verma, P., Zolton, G. C., Truong, P. V., Arole, K., Saha, S., Sentmanat, M. L., ... Hule, R. A.

citation count

  • 0

complete list of authors

  • Verma, Pavan||Zolton, Gabriel C||Truong, Phuc Vinh||Arole, Kailash||Saha, Sanjit||Sentmanat, Martin L||Yakovlev, Sergey||Jacob, Sunny||Green, Micah J||Hule, Rohan A

publication date

  • August 2021

publisher