Characterization of the Aging Behavior of Microorganism Coagulated Natural Rubber

Abstract:

Article Preview

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)

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 et al., "Characterization of the Aging Behavior of Microorganism Coagulated Natural Rubber", Advanced Materials Research, Vols. 287-290, pp. 1517-1520, 2011

Online since:

July 2011

Export:

Price:

$35.00

[1] A.F. Martins, L.L.Y. Visconte and R.C.R. Nunes: J. Appl. Polym. Sci. Vol. 97 (2005), p.2125.

[2] M. Karrabi and S. Mohammadian-Gezaz: J. Vinyl Addit. Technol. Vol. 16 (2010), p.209.

[3] R.W. Whorlow: Rheological Techniques (Jhon Wiley & Sons, London 1980).

[4] S.D. John and A.P. Henry: In Chinese Rubber Industry Vol. 45 (1998), p.301.

[5] Z.F. Wang, S.D. Li and X.D. She: Advanced Materials Research Vols. 160-162 (2011), p.1181.

[6] Z.F. Wang, Z. Peng and S.D. Li: Composites Science and Technology Vol. 69 (2009), p.1797.

[7] Z.F. Wang, S.D. Li and X. Fu: e-Polymers Vol. 115 (2010), p.1.

[8] C.K. John: Journal of the Rubber Research Institute of Malaya Vol. 19 (1966), p.286.

[9] G.Y. Wang: In Chinese Special Purpose Rubber Products Vol. 22 (2001), p.56.

[10] C. Nakason, A. Kaesaman and A. Rungvichaniwat: J. Appl. Polym. Sci. Vol. 89 (2003), p.1453.

[11] J. Dick and Alpha Technologies: Rubber World Vol. 235 (2007), p.36.

[12] P.Y. Wang, H.L. Qian, C.L. Yang and Y. Chen: J. Appl. Polym. Sci. Vol. 100 (2006), p.1277.

[13] T.M. Gao, P.Y. Wang and M.Z. Lu: Special Purpose Rubber Products Vol. 31 (2010), p.29.

[14] R.R. Babu, N.K. Singha and K. Naskar: J. Appl. Polym. Sci. Vol. 117 (2010), p.1578.

[15] Z.Q. Zeng, H.P. Yu and Q.F. Wang: J. Appl. Polym. Sci. Vol. 109 (2008), p. (1944).

[16] C. Sirisinha, P. Saeoui and S. Pattanawanidchai: J. Appl. Polym. Sci. Vol. 93 (2004), p.1129.

In order to see related information, you need to Login.