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Use of carbon and aluminosilicate nanofillers in XNBR composites designed for protective materials against oils

Krzemińska S. M., Smejda-Krzewicka A. A., Leniart A.

Polish Journal of Chemical Technology

2018

Vol. 20, nr 2

15--23

The objective of the work was to investigate the possibility of application of carbon and bentonite nanoparticles in carboxylated acrylonitrile-butadiene rubber (XNBR) and the related effects of the nanofi llers on the structure, as well as mechanical and barrier properties, of the resulting composites. The composites were designed for use in protective clothing and gloves. XNBR compounds were modifi ed with 2 phr of graphene fl akes, graphene oxide, or modifi ed bentonite, and crosslinked with sulfur-accelerator system. Rubber compounds were prepared using a conventional method with a laboratory rolling mill. The composites were studied in terms of structure (WAXS), surface morphology (AFM), the presence of functional groups (ATR-FTIR) barrier properties against chemical substances (mineral oil) and swelling properties, as well as mechanical properties (abrasion resistance and tensile strength). The composites were characterized by very high resistance to oil permeation (breakthrough time >480 min). The type of nanofi ller added to the XNBR blend in the amount of 2 phr did not signifi cantly affect mechanical parameters.