Paper Title:
Characterization of the Aging Behavior of Microorganism Coagulated Natural Rubber
  Abstract

The characterization of the aging behavior of raw natural rubber (NR) coagulated by microorganisms (NR-m) was performed on a rubber processing analyzer (RPA) by tests of frequency sweep, strain sweep and stress relaxation, respectively. With the prolongation of the aging time, the storage modulus (G'), storage torque (S'), complex viscosity (η*) and stress relaxation time of raw NR-m decreased while the damping factor (tanδ) were increased. As the oscillation frequency was increasing, the G' rose gradually but the tanδ decreased. The η* diminished over the whole range of frequency shear rate (γƒ) values. Its change remained all almost the same at low strain shear rate (γs) but began to decrease sharply when the rate reached a higher value. The S' soared up in the region of less than 10°, but began to slow down after that point.

  Info
Periodical
Advanced Materials Research (Volumes 287-290)
Chapter
New Energy Materials
Edited by
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
Pages
1517-1520
DOI
10.4028/www.scientific.net/AMR.287-290.1517
Citation
W. J. Luo, S. D. Li, S. Q. Liao, L. Fang, Z. F. Wang, "Characterization of the Aging Behavior of Microorganism Coagulated Natural Rubber", Advanced Materials Research, Vols. 287-290, pp. 1517-1520, 2011
Online since
July 2011
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Price
$32.00
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