Publication: Experimental analysis of viscoelastic properties in carbon black-filled natural rubber compounds
Issued Date
2005-09-15
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ISSN
00218995
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2-s2.0-25444502421
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Applied Polymer Science. Vol.97, No.6 (2005), 2197-2203
Suggested Citation
Tibhawan Sajjayanukul, Pongdhorn Saeoui, Chakrit Sirisinha Experimental analysis of viscoelastic properties in carbon black-filled natural rubber compounds. Journal of Applied Polymer Science. Vol.97, No.6 (2005), 2197-2203. doi:10.1002/app.21855 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/16430
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Title
Experimental analysis of viscoelastic properties in carbon black-filled natural rubber compounds
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Abstract
Processability and viscoelastic properties of natural rubber (NR) compounds filled with different carbon black loadings and types were investigated with the use of a steady shear rheometer, namely, the Mooney viscometer, and an oscillatory rheometer, namely, the Rubber Process Analyser (RPA2000). It was found that the type and amount of carbon black strongly influence the viscoelastic properties of rubber compounds. Both the dilution effect and filler transient network are responsible for the viscoelastic properties, depending on the vulcanization state. In the case of uncured compounds, the damping factor of the uncured NR decreases with increasing black loading. This is attributed to the reduction of mobilized rubber content in the compound (or the dilution effect). However, in the case of the cured NR vulcanizates, the filler transient network is the dominant factor governing the damping factor of the vulcanizate. With increasing black loading, the damping factor of the vulcanizate clearly increases. © 2005 Wiley Periodicals, Inc.