Analysis of Bulk Dynamic Properties in Two-Layered Natural Rubber Vulcanisates

Two-layered vulcanisates were prepared from two rubbers with different dynamic properties, and the bulk dynamic properties of the layered rubber vulcanisates were assessed. The results reveal that the bulk dynamic properties are strongly dependent on a layer thickness ratio. For the specimens in whi...

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Bibliographic Details
Published in:Polymer-plastics technology and engineering 2006-02, Vol.45 (1), p.77-83
Main Authors: Sajjayanukul, Tibhawan, Saeoui, Pongdhorn, Sirisinha, Chakrit
Format: Article
Language:English
Subjects:
Applied sciences
Dynamic properties
Exact sciences and technology
Layered vulcanisates
Natural rubber
Organic polymers
Physicochemistry of polymers
Properties and characterization
Rheology and viscoelasticity
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Summary:Two-layered vulcanisates were prepared from two rubbers with different dynamic properties, and the bulk dynamic properties of the layered rubber vulcanisates were assessed. The results reveal that the bulk dynamic properties are strongly dependent on a layer thickness ratio. For the specimens in which each layer has similar compressive modulus and dynamic properties, the relationship between the bulk dynamic properties and the layer thickness ratio obeys a rule of mixture. However, for the specimens in which each layer has a large difference in compressive modulus, some deviation from the rule of mixture towards the layer with relatively large deformability (i.e., the layer with relatively low compressive modulus) is observed.
ISSN:0360-2559
1525-6111
DOI:10.1080/03602550500371687