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Compound Development of Treated Nanoclays in Rubber

ARTIS have studied the effect of nano fictionalised montmorillonite clays in a range of rubber formulations.  Of particular interest was the effect on permeability of solvents with EPDM rubber.  From literature and previous studies it was believed that intercalation of the nano-clay platelets within the EPDM polymer matrix could be exploited to produce a torturous permeation path and decrease permeability.

EPDM formulations were studied using organoclay/carbon filler systems.  Though a significant effect on cure was found using a moving die rheometer only minimal effects on mechanical properties were found.

Diffusivity coefficients were calculated from mass uptake measurements in ethyl acetate showing a 53% reduction in diffusivity co-efficient.  Dynamic mechanical testing of the compounds at low strain amplitudes shows considerable changes in dynamic behaviour which are indicative of excellent intercalation of the nano-clay platelets.  SRD and TEM analysis confirm this.

  • Summary:

    ARTIS have studied the effect of nano fictionalised montmorillonite clays in a range of rubber formulations.  Of particular interest was the effect on permeability of solvents with EPDM rubber.  From literature and previous studies it was believed that intercalation of the nano-clay platelets within the EPDM polymer matrix could be exploited to produce a torturous permeation path and decrease permeability.

  • Category Tag:
    • Case Studies
    • Compound Development

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