Enhanced hydrogen gas barrier properties in highly filled acrylonitrile butadiene rubber with high aspect ratio filler

Research output: Contribution to journalArticleResearchpeer-review

Authors

  • Clara Clute
  • Thomas Hafner
  • Winoj Balasooriya
  • Andreas Kaiser

External Organisational units

  • Polymer Competence Center Leoben GmbH
  • HyCentA Research GmbH
  • ARLANXEO Deutschland GmbH

Abstract

Acrylonitrile butadiene rubber (NBR) compounds with a hybrid filler system, containing carbon black (CB) and a surface functionalized talc filler with a platelet-like structure, were investigated. The effect of the loading of the high aspect ratio filler (0-80 phr) on mechanical, thermomechanical, morphological, and hydrogen gas barrier properties were evaluated. With increasing amount of the talc filler, the NBR grades exhibit an increase in modulus, whereas the glass transition temperature remains unaffected. The platelet-shaped fillers show a good distribution and orientation in the rubber matrix and hence create obstacles for permeating gas molecules. The coefficients related to hydrogen transport properties in the material, solubility, diffusivity, and permeability, all exhibit a decrease with increasing loading of the high aspect ratio filler, leading to overall enhanced gas barrier properties of the rubber materials.

Details

Original languageEnglish
Pages (from-to)404-411
Number of pages8
JournalInternational Journal of Hydrogen Energy
Volume91.2024
Issue number19 November
DOIs
Publication statusPublished - 19 Nov 2024