Transport properties of carboxylated nitrile butadiene rubber (XNBR)-nanoclay composites; a promising material for protective gloves in occupational exposures

This study was conducted in response to one of the research needs of national institute for occupational safetyand health (niosh), i.e. the application of nanomaterials and nanotechnology in the field of occupational safetyand health. in order to fill this important knowledge gap, the equilibrium solubility and diffusion of carbontetrachloride and ethyl acetate through carboxylated nitrile butadiene rubber (xnbr)-clay nanocomposite, as apromising new material for chemical protective gloves (or barrier against the transport of organic solventcontaminant), were examined by swelling procedure. near fickian diffusion was observed for xnbr basednanocomposites containing different amounts of nanoclay. decontamination potential is a key factor in developmentof a new material for reusable chemical protective gloves applications, specifically for routine or highly toxic exposures.a thermal decontamination regime for nanocomposite was developed for the first time. then, successive cycles ofexposure/decontamination for nanocomposite were performed to the maximum 10 cycles for the first time. this resultconfirms that the two selected solvents cannot deteriorate the rubber-nanoclay interaction and, therefore, such glovescan be reusable after decontamination.