Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1887012 | Radiation Physics and Chemistry | 2008 | 13 Pages |
Abstract
Electron beam (EB)-cross-linked natural rubber (NR) gels were prepared from latex and characterized by various techniques. The addition of a small amount of these gels to raw NR was found to reduce the apparent shear viscosity and die swell remarkably. This effect was further enhanced with the addition of butyl acrylate as a sensitizer. The apparent shear viscosity first decreased up to 8Â phr of gel loading and then increased. However, the percent die swell value decreased steadily upon gel loading. These were explained by calculating principal normal stress difference, the activation energy of melt flow and characteristics of EB-cross-linked gels. These effects were also reflected in the changes of mechanical and dynamic mechanical properties of gel-filled raw NR. Tailoring of the above properties could be done with the help of these gels.
Keywords
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Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
Suman Mitra, Santanu Chattopadhyay, Y.K. Bharadwaj, S. Sabharwal, Anil K. Bhowmick,