Acrylonitrile-butadiene rubber powdered rubbers

FIGURE 38.8 Ambient ground acrylonitrile butadiene rubber (NBR) waste powder. (Reprinted from Anandhan, S., De, P.P., Bhowmick, A.K., Bandyopadhyay, S., and De, S.K., J. Appl. Polym. Sci., 90, 2348, 2003. With permission from Wiley InterScience.)... 

Abstract Smart composites based on carbonyl iron powder, micro and nano size Fe304 in ethylene - propylene and acrylonitrile - butadiene rubber were manufactured and studied. Elastomer samples with various volume fractions of magnetic particles were tested. To improve dispersion of applied fillers in polymer matrix, ionic liquids were added during the process of composites preparation. To align particles in elastomer, cross-linking process took place in magnetic field. 

PE/hydrolyzed collagen (98) PE/hydrolyzed collagen (98) PE/acrylonitrile-co-butadiene (100) PE/scrap rubber powder (165)... 

The main markets for the dispersions are paints and coatings (26%), paper coating (23%), adhesives (22%), and carpet backing (11%) [2], They are also used in such niche applications as diagnosis, drug delivery, and treatment [3], The main dry products are styrene-butadiene rubber for tires, nitrile rubber, about 10% of the PVC production, acrylonitrile butadiene styrene (ABS), and redispersable powders for construction materials. 

MRE composites were prepared according to commonly used methods. Micro- and nanosized iron oxides and carbonyl iron powder were the active fillers of acrylonitrile -butadiene and ethylene - propylene rubber. It was found that micro- and nano- sized iron oxides and carbonyl iron powder improved mechanical properties of elastomers. They also changed their magnetic properties and reinforced the magnetorheological effects of the composites. 

Workers in India [18] have also blended both waste plastic and waste rubber. In this instance they took scrap computer plastics (e.g., acrylonitrile-butadiene-styrene and styrene-acrylonitrile) and blended them with waste NBR powder. The blends were analysed by TGA in a nitrogen atmosphere and their activation energies of decomposition determined using Friedman and Flynn-Wall-Ozawa methods. 

Table 3.5 The Specific Volume of Powdered Rubber, using Butadiene-Acrylonitrile Copolymer...

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