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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.