caa a22 4500 445291869 CHVBK 20180317142530.0 cr unu---uuuuu 170323e20101201xx s 000 0 eng 10.1007/s12588-010-0016-0 doi (NATIONALLICENCE)springer-10.1007/s12588-010-0016-0 RETRACTED ARTICLE: Investigation on the improvement of physico-mechnical, viscoelastic and morphological properties of isotactic polypropylene (iPP)/ethylene-propylene diene rubber (EPDM)/ nitrile rubber (NBR) elastomeric blends [Elektronische Daten] [Krishna Chauhan, Rakesh Soni, Harjeet Singh] An attempt has been made to study the mechanical, viscoelastic and morphological behavior of various dynamically cross-linked blends of isotactic polypropylene (iPP) with ethylene-propylene diene rubber (EPDM) and nitrile rubber (NBR) were examined and compared with these of uncross-linked blends of iPP/EPDM/NBR. These blends were prepared by melt blending in an internal mixer at 190°C in the composition range of 10-40wt. % EPDM/NBR elastomeric content. The variation in the strength of fibrils of the craze, yield stress and the number density of the EPDM/NBR elastomeric domains (morphology) which are important factors for enhancing the interfacial adhesion and toughness in dynamically cross-linked blends were determined. The toughness and ductility of these blends were discussed with main emphasis on the composition between crack formation and the degree of plastic deformation through crazing and shear yielding. The physico-mechanical properties such as hardness, impact strength, flexural strength and flexural modulus of dynamically cross-linked blends were found to be consistent and displayed enhanced mechanical properties values as compared with uncross-linked blends. The decreases in crystallinity and nucleation effect in cross-linked blends of iPP/EPDM/NBR were considered to contribute in the improvement in the impact strength behavior of the blends prepared. Central Institute of Plastics Engineering & Technology, 2011 Isotactic polypropylene (iPP) nationallicence Ethylene propylene-diene rubber (EPDM) nationallicence Nitrile rubber (NBR) nationallicence Polymer blend nationallicence Impact strength nationallicence Physico-mechanical properties nationallicence Fracture mechanics nationallicence Crystallinity nationallicence Nucleation nationallicence Chauhan Krishna Department of Chemistry, Ch .Charan Singh University, 200005, Meerut, UP, India aut Soni Rakesh Department of Chemistry, Ch .Charan Singh University, 200005, Meerut, UP, India aut Singh Harjeet Department of Chemistry, Ch .Charan Singh University, 200005, Meerut, UP, India aut International Journal of Plastics Technology Springer India 14/2(2010-12-01), 117-141 0972-656X 14:2<117 2010 14 12588 https://doi.org/10.1007/s12588-010-0016-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12588-010-0016-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chauhan Krishna Department of Chemistry, Ch .Charan Singh University, 200005, Meerut, UP, India aut NATIONALLICENCE 700 1- Soni Rakesh Department of Chemistry, Ch .Charan Singh University, 200005, Meerut, UP, India aut NATIONALLICENCE 700 1- Singh Harjeet Department of Chemistry, Ch .Charan Singh University, 200005, Meerut, UP, India aut NATIONALLICENCE 773 0- International Journal of Plastics Technology Springer India 14/2(2010-12-01), 117-141 0972-656X 14:2<117 2010 14 12588 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer