Resistivity and Hugoniot Measurements of Polytetrofluoroethylene (Teflon) under Shock Compression

Experimental results of resistivity and Hugoniot measurements for the Teflon of home-made (SFB-1) in the pressure range of 10~45 GPa are reported in this paper. The main results are: the resistivity is a monotonous decrease function of pressure, from 2.45105 #8226;cm at 10 GPa to 1.73103 #8226;cm at 45 GPa, and the corresponding shock adiabat may be expressed as D=1.571+1.961u-0.0537u2 (D, u are shock velocity and particle velocity, respectively, both units are in km/s). In comparison with the data reported by others, it is found that there exists definite difference in the values of resistivity of the Teflon samples made by different factories, but in the shock adiabat expressed as D-u relation there is no detectable difference.