Studies on rubber–filler interaction in carboxylated nitrile rubber through microhardness measurement

The influence of carbon black filler loading on the microhardness characteristics of two types of carboxylated acrylonitrile butadiene rubber (XNBR) vulcanizates having different (ionic or covalent) crosslinking reaction systems has been studied. The microhardness measurement predicts that the rubbe...

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Bibliographic Details
Published in:Polymer testing Vol. 20; no. 3; pp. 305 - 311
Main Authors: Mandal, U.K, Aggarwal, S
Format: Journal Article
Language:English
Published: Oxford Elsevier Ltd 2001
Elsevier
Subjects:
Applied sciences
Composites
Exact sciences and technology
Forms of application and semi-finished materials
Polymer industry, paints, wood
Technology of polymers
Ionomer
Carbon black
Volume fraction
Property composition relationship
Prediction
Mechanical properties
Dispersion reinforced material
Nitrile rubber
Experimental study
Microhardness
Composite material
Polymer filler interaction
Vulcanizate
Carboxylate copolymer
Comparative study
ISSN:0142-9418, 1873-2348
Online Access:Get full text
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Summary:The influence of carbon black filler loading on the microhardness characteristics of two types of carboxylated acrylonitrile butadiene rubber (XNBR) vulcanizates having different (ionic or covalent) crosslinking reaction systems has been studied. The microhardness measurement predicts that the rubber–filler interaction in the ionic crosslinking system is higher than that in the covalent crosslinking system. The high hardness values and strong rubber–filler interaction in the ionic crosslinking system has been explained on the basis of ionic cluster formation for the carboxylate salt in XNBR. The microhardness measurement result helps to evaluate the rubber–filler interaction and shows good correlation with the dynamic mechanical result. The theoretical predicted data deviate highly in the ionic crosslinking system, although there is a good correlation in the covalent crosslinking system.
ISSN:0142-9418
1873-2348
DOI:10.1016/S0142-9418(00)00036-2