Barrier properties in hydrogenated acrylonitrile butadiene rubber compounds containing organoclays and perfluoropolyether additives

2010 ◽  
Vol 119 (6) ◽  
pp. 3476-3482 ◽  
Author(s):  
Roberto Valsecchi ◽  
Luca Torlaj ◽  
Stefano Turri ◽  
Claudio Tonelli ◽  
Marinella Levi
Materials ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2654 ◽  
Author(s):  
Hanna J. Maria ◽  
Martin George Thomas ◽  
Marco Morreale ◽  
Francesco Paolo La Mantia ◽  
Ange Nzihou ◽  
...  

In this paper, gas permeability studies were performed on materials based on natural rubber/acrylonitrile butadiene rubber blends and nanoclay incorporated blend systems. The properties of natural rubber (NR)/nitrile rubber (NBR)/nanoclay nanocomposites, with a particular focus on gas permeability, are presented. The measurements of the barrier properties were assessed using two different gases—O2 and CO2—by taking in account the blend composition, the filler loading and the nature of the gas molecules. The obtained data showed that the permeability of gas transport was strongly affected by: (i) the blend composition—it was observed that the increase in acrylonitrile butadiene rubber component considerably decreased the permeability; (ii) the nature of the gas—the permeation of CO2 was higher than O2; (iii) the nanoclay loading—it was found that the permeability decreased with the incorporation of nanoclay. The localization of nanoclay in the blend system also played a major role in determining the gas permeability. The permeability of the systems was correlated with blend morphology and dispersion of the nanoclay platelets in the polymer blend.


2012 ◽  
Vol 2012 ◽  
pp. 1-5
Author(s):  
Mirosława Prochoń ◽  
Anita Przepiórkowska ◽  
Yves-Herve Tshela Ntumba

The current investigation treats about the influence of waste fodder potato proteins (WFPP) recovered from the starch industry on the mechanical-properties of carboxylated acrylonitrile-butadiene rubber (XNBR). WFPP were characterized and used as a filler of the above mentioned XNBR rubber without or after blending with zinc oxide. The obtained rubber compounds were cured, and mechanical properties such as tensile strength, hardness, and cross-linking density were investigated. It was found that the introduction of WFPP previously blended with zinc oxide into rubber compound increases the cross-linking density of the obtained composites, compared with the vulcanizate without protein, which in turn increases the mechanical properties of the obtained vulcanizates. That occurs thanks to the formation of ion nodes, as testified by equilibrium swelling. The introduction of WFPP into the elastomer matrix also increases the susceptibility of the elastomer to biodecomposition.


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