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Blends of nylon/acrylonitrile butadiene rubber: Effects of blend ratio, dynamic vulcanization and reactive compatibilization on rheology and extrudate morphology

Publication Type : Journal Article

Publisher : Polymer Engineering & Science

Source : Polymer Engineering & Science, Volume 43, Number 9, p.1555-1565 (2003)

Url : https://onlinelibrary.wiley.com/doi/abs/10.1002/pen.10131

Campus : Amritapuri

School : School of Biotechnology

Department : biotechnology

Year : 2003

Abstract : Abstract The melt flow behavior of thermoplastic elastomers from nylon and nitrile rubber (NBR) was studied as a function of blend ratio, dynamic crosslinking, compatibilization and temperature. The morphology of the extrudates, i.e., the size, shape and distribution of the domains, was analyzed. Uncompatibilized and compatibilized blends showed pseudoplastic behavior. The viscosity of the blends showed positive deviation from a linear rule of mixtures. Compatibilization using chlorinated polyethylene (CPE) increased the melt viscosity of the blends. The addition of the compatibilizer decreased the domain size of the dispersed phase, followed by an increase after a critical concentration of the compatibilizer, where the interface was saturated. The influence of dynamic vulcanization on the rheological behavior was also studied. The extrudate morphology depended on blend ratio, compatibilization and shear rate.

Cite this Research Publication : R. C. Kumar, Dr. Sobha V. Nair, George, K. E., Oommen, Z., and Thomas, S., “Blends of nylon/acrylonitrile butadiene rubber: Effects of blend ratio, dynamic vulcanization and reactive compatibilization on rheology and extrudate morphology”, Polymer Engineering & Science, vol. 43, pp. 1555-1565, 2003.

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