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|Title:||A study of rheological properties in sulfur-vulcanized CPE/NR blends|
Thailand National Metal and Materials Technology Center
|Citation:||Polymer Testing. Vol.24, No.2 (2005), 227-233|
|Abstract:||The use of natural rubber (NR) for partly substituting elastomeric chlorinated polyethylene (CPE) was investigated. Sulfur curing was used to vulcanize NR phase in the blends. Rheological properties of CPE/NR blends were determined from two rheometers with different shear modes; the rate-controlled capillary rheometer and the oscillating die rheometer (Rubber Process Analyser, RPA2000). Results obtained reveal that the viscoelastic behavior of neat CPE and the blends with CPE as a major component is governed by the viscous response, which could be observed from the time-dependent properties. By contrast, the viscoelasticity of neat NR and blends with NR as a matrix is influenced strongly by vulcanization of the NR phase in the blends. The time-dependent properties become time-independent after the NR phase is cured by sulfur. Furthermore, results measured with these two rheometers could successfully be superimposed. © 2004 Elsevier Ltd. All rights reserved.|
|Appears in Collections:||Scopus 2001-2005|
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