Effect of carbon black loading on fluoroelastomer–solvent interactions

✍ Scribed by Tejraj M. Aminabhavi; Sujata F. Harlapur

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 265 KB
• Volume: 68
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19980502)68:5<815::aid-app13>3.0.co;2-p

✦ Synopsis

An analysis of the molecular transport of organic liquids into fluoroelastomer membranes containing varying amounts of carbon black has been undertaken by the sorption-desorption gravimetric method. The variation in carbon black loading and temperature showed a significant effect on their transport characteristics. Diffusion coefficients were calculated from Fick's equation. Experimental sorption-desorption results were analyzed in terms of concentration profiles obtained from a solution of Fick's equation as well as by a numerical method based on the finite difference technique. Arrhenius activation parameters were estimated from the temperature-dependent diffusion and permeation data. The results of this study are discussed in terms of polymer-solvent interactions.