Characterization of permeability of elastomers part II

authored by

X. Yang, L. K.A. Schneider, U. Giese, R. H. Schuster

Abstract

The diffusion and permeation process of t-butylbenzene were studied in unfilled NBR as a function of nitrile content and temperature. For filled NBR vulcanizates the influence of the type and volume fraction of iso-dimensional and plate like fillers was investigated. By increasing the nitrile content, both the diffusion and the permeation coefficients are seen to decrease on a gradient similar to that for HNBR elastomers. Platelet fillers are seen to have much higher barrier properties than spherical fillers. Micro-glass platelets with a volume fraction of 0.04 reduce the diffusive transport by ca. 28 %. The best barrier function obtained with pristine montmorillonite that was dispersed in the composite via a new technique based on latex compounding. For a volume fraction of 0.05 a 40 % reduction in the permeation rate and constant respectively was obtained.

External Organisation(s)

German Institute of Rubber Technology (DIK e.V.)

Type

Article

Journal

KGK Kautschuk Gummi Kunststoffe

Volume

63

Pages

496-505

No. of pages

10

ISSN

0948-3276

Publication date

11.2010

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Mechanical Engineering, Polymers and Plastics, Industrial and Manufacturing Engineering, Materials Chemistry