Mechanical, thermal and transport properties of nitrile rubber (NBR)-nanoclay composites

作者：Balachandran Meera; Bhagawan S S^*

来源：Journal of Polymer Research, 2012, 19(2): 9809.

DOI：10.1007/s10965-011-9809-x

• Nanocomposite
• Organoclay
• Rubber
• Mechanical properties
• Dynamic mechanical properties
• Diffusion
• Swelling

The article describes the properties of nitrile rubber (NBR)-nanoclay composites prepared by a two-step method. viz. preparation of a 3:1 [by weight] masterbatch of NBR and nanoclay followed by compounding on a two roll mill and molding at 150 degrees C and 20 MPa pressure. The tensile strength, elongation at break, modulus, storage modulus (E') and loss modulus (E '') increased with the nanofiller content, reached the maximum value at 5 phr and decreased thereafter. The solvent uptake, diffusion, sorption and permeation constants decreased with nanoclay content with the minimum value at 5 phr nanoclay. The mechanism of solvent diffusion through the nanocomposites was found to be Fickian. Thermodynamic constants such as enthalpy and activation energy were also evaluated. The dependence of various properties on nanoclay content was correlated to the morphology of the nanocomposites. supported by morphological analysis.

• 出版日期2012-1