Long time stress relaxation of filled amorphous networks under uniaxial tension: dynamic constrained junction model
Authors: Konyali, H.1; Menceloglu, Y.2; Erman, B.3
Source: Plastics, Rubber and Composites, Volume 38, Number 8, October 2009 , pp. 327-332(6)
Publisher: Maney Publishing
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Abstract:
The dynamic constrained junction model, based on the equilibrium theory of rubber elasticity, is applied to study the effects of fillers on the relaxation of stress in uniaxially deformed rubbers. Only low degrees of reinforcement are considered where complications such as filler-filler interactions are not pronounced. The proposed model is based on a purely molecular picture of the network and attempts to explain the molecular origins of the deformation and time dependence of stress in filled rubbers. Comparison with experimental data on filled (poly)isoprene networks showed that the deformation and time dependence of lightly filled samples can be predicted satisfactorily by the model.Keywords: MOLECULAR THEORY OF RUBBERS; VISCOELASTICITY; CONSTRAINTS; STRESS RELAXATION
Document Type: Research article
DOI: 10.1179/146580109X12473409436869
Affiliations: 1: Faculty of Engineering and Natural Sciences, Sabanci University, Tuzla 34956, İstanbul, Turkey, Tekno Kaucuk, GOSB, İhsan dede cad. Gebze 41480 Kocaeli, Turkey 2: Faculty of Engineering and Natural Sciences, Sabanci University, Tuzla 34956, İstanbul, Turkey 3: Department of Chemical and Biological Engineering, Koc University, Rumelifeneri Yolu, Sariyer 34450, Istanbul, Turkey;, Email: berman@ku.edu.tr
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