The Influences of Blend Compatibilizers on the Structural, Rheological, Mechanical, Thermal, and Morphological Properties of Nitrile Rubber/ Polypropylene Thermoplastic Elastomer Blends.
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Date
2023-06-22
Journal Title
Journal ISSN
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Publisher
UNIVERSITE DE 20 AOUT 1955 SKIKDA
Abstract
The objective of this work is to study the effects of the incorporation of a 50/50 blend of Epoxidized Natural Rubber /
Polypropylene-grafted maleic anhydride (ENR/PP-g-MA) as a compatibilizing agent (CA) for a thermoplastic elastomer
based on a 50/50 Nitrile Rubber / Polypropylene NBR / PP blend on the rheological and mechanical properties.
Several formulations of this type of elastomer containing different concentrations of CA (from 5 to 15 Phr) were prepared by
mixing in the molten state Nitrile Rubber and Polypropylene using a Brabender plasticorder. The rheological behavior was
examined by means of a Brabender plasticorder. The mechanical properties were determined by the tensile measurements.
The Brabender plastograms as well as FTIR analysis revealed that upon mixing ENR reacts with PP-g-MA and a crosslinked
structure results. Evidence of compatibilizing effects was obtained from an improved mechanical properties; which was
attributed to a reduction of the interfacial tensions and an enhanced interphase interactions imparted by the CAs.