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Thakur, V. ; Das, A. ; Mahaling, R. N. ; Rooj, S. ; Gohs, U. ; Wagenknecht, U. ; Heinrich, G.
Influence of layered double hydroxides on the curing of carboxylated nitrile rubber with zinc oxide

Unmodified (LDH) and modified (mLDH) layered double hydroxides have been added to gum and ZnO-cured carboxylated nitrile rubber (XNBR). It was observed that both LDH and mLDH inhibit the formation of ionic cross-links between XNBR and ZnO quite significantly, as is evident from DMA and FT-IR studies. The suppression of ionic cross-links formation was also reflected in the mechanical properties of the resulting composites. A tentative sketch has also been suggested for the possible mechanism involved in the inhibition of ionic cross-links by LDHs. X-ray diffraction and STEM studies were performed to see the dispersion of LDH's in the elastomer matrix.

Source
Macromolecular Materials and Engineering 294

Pages
561-569

DOI
http://dx.doi.org/10.1002/mame.200900083

Published
September 2009
 
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