Abstract
In this paper, the thermal conductivity and thermal diffusivity of four kinds of polymer melts were measured by using the transient short-hot-wire method. This method was developed from the hot-wire technique and is based on two-dimensional numerical solutions of unsteady heat conduction from a wire with the same length-to-diameter ratio and boundary conditions as those in the actual experiments. The present method is particularly suitable for measurements of molten polymers where natural convection effects can be ignored due to their high viscosities. The results have shown that the present method can be used to measure the thermal conductivity and thermal diffusivity of molten polymers within uncertainties of 3 and 6%, respectively. Further, the thermal conductivity and thermal diffusivity of solidified samples were also measured and discussed.
Similar content being viewed by others
REFERENCES
H. Lobo and C. Cohen, Polymer Eng. Sci. 30(2):65 (1990).
M. Luba, T. Pelt, and R. G. Griskey, J. Appl. Polym. Sci. 23:55 (1979).
M. G. Kulkarni and R. A. Mashelkar, Polymer 22:867 (1981).
R. G. Ross, P. Anderson, B. Sundqvist, and G. Backstrom,Rep. Prog. Phys. 47:1347 (1984).
K. N. Madhusoodanan, M. R. Thomas, and J. Philip, J. Appl. Phys. 62:1162 (1987).
B. Dessain, O. Moulaert, R. Keunings, and A. R. Bunsell, J. Mater. Sci. 27:4515 (1992).
X. Zhang, T. Tomimura, and M. Fujii, Proc. 14thJapan Symposium on Thermophysical Properties (1993), p. 23.
M. Fujii, X. Zhang, N. Imaishi, S. Fujiwara, and T. Sakamoto,Int. J. Thermophys. 18:327 (1997).
T. Tomimura, X. Zhang, S. Maki, and M. Fujii, Proc. 19th Japan Symposium on Thermophysical Properties (1998), p. 275.
X. Zhangand M. Fujii, Int. J. Thermophys. 21:71 (2000).
N. Nagasaka and A. Nagashima, Rev. Sci. Instrum.52:229 (1981).
C. A. Nieto de Castro, S. F. Y. Li, A. Nagashima, R. D. Trengove, and W. A. Wakeham, J. Phys. Chem. Ref. Data 15:1073 (1986).
X. Zhang, S. Fujiwara, Z. Qi, and M. Fujii, J. Jpn. Soc. Microgravity Appl. 16(2): 129 (1999).
K. Eiermann and K.-H. Hellwege, , J.Polymer Sci. 57:99 (1962).
D. E. Kline, J.Polymer Sci. L:441 (1961).
C. L. Choy, W. P. Leung, and Y. K. NG, J. Polymer Sci.: B: Polymer Physics 25:1779 (1987).
J. Morikawa, J. Tan, and T. Hashimoto, Polymer 36:4439 (1995).
C. L. Yen, H. C. Tseng, Y. Z. Wang, and K. H. Hsieh, J. Applied Polymer Sci. 42:1179 (1991).
P. Dashora and G. Gupta, Polymer 37:231 (1996).
W. M. Underwood and R. B. McTaggart, Heat Transfer (Storrs), Chem. Eng. Progr. Sym., Series 56, No. 30, 261 (1960).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Zhang, X., Hendro, W., Fujii, M. et al. Measurements of the Thermal Conductivity and Thermal Diffusivity of Polymer Melts with the Short-Hot-Wire Method. International Journal of Thermophysics 23, 1077–1090 (2002). https://doi.org/10.1023/A:1016394104244
Issue Date:
DOI: https://doi.org/10.1023/A:1016394104244