Properties of Vulcanized Polyisoprene Rubber Composites Filled with Opalized White Tuff and Precipitated Silica
Joint Authors
Marinović-Cincović, Milena
Samaržija-Jovanović, Suzana
Jovanović, Vojislav
Marković, Gordana
Zeković, Ivana
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-02-06
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Opalized white tuff (OWT) with 40 μm average particle size and 39.3 m2/g specific surface area has been introduced into polyisoprene rubber (NR).
Their reinforcing effects were evaluated by comparisons with those from precipitated silica (PSi).
The cure characteristic, apparent activation energy of cross-link ( E a c ) and reversion ( E a r ), and mechanical properties of a variety of composites based on these rubbers were studied.
This was done using vulcanization techniques, mechanical testing, and scanning electron microscopy (SEM).
The results showed that OWT can greatly improve the vulcanizing process by shortening the time of optimum cure (t c90) and the scorch time (t s2) of cross-linked rubber composites, which improves production efficiency and operational security.
The rubber composites filled with 50 phr of OWT were found to have good mechanical and elastomeric properties.
The tensile strengths of the NR/OWT composites are close to those of NR/PSi composites, but the tear strength and modulus are not as good as the corresponding properties of those containing precipitated silica.
Morphology results revealed that the OWT is poorly dispersed in the rubber matrix.
According to that, the lower interactions between OWT and polyisoprene rubber macromolecules are obtained, but similar mechanical properties of NR/OWT (100/50) rubber composites compared with NR/PSi (100/50) rubber composites are resulted.
American Psychological Association (APA)
Samaržija-Jovanović, Suzana& Jovanović, Vojislav& Marković, Gordana& Zeković, Ivana& Marinović-Cincović, Milena. 2014. Properties of Vulcanized Polyisoprene Rubber Composites Filled with Opalized White Tuff and Precipitated Silica. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1051576
Modern Language Association (MLA)
Samaržija-Jovanović, Suzana…[et al.]. Properties of Vulcanized Polyisoprene Rubber Composites Filled with Opalized White Tuff and Precipitated Silica. The Scientific World Journal No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-1051576
American Medical Association (AMA)
Samaržija-Jovanović, Suzana& Jovanović, Vojislav& Marković, Gordana& Zeković, Ivana& Marinović-Cincović, Milena. Properties of Vulcanized Polyisoprene Rubber Composites Filled with Opalized White Tuff and Precipitated Silica. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1051576
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1051576