Thermophysical and Mechanical Properties of Polystyrene: Influence of Free Quenching

Table 3

The values of the thermal conductivity and the thermal diffusivity of PS annealed and the second quenching at different temperatures and their standard deviations.

Thermal history of PS	Thermal conductivity (𝑘𝑐) (Wm^−1 K^−1)	Standard deviation ± 2𝜎𝑑	Thermal diffusivity 𝑎𝑐 (m^2s^−1)	Standard deviation ± 2𝜎𝑑
Annealed sample	0.15	0.01	1.22×10^−7	0.06×10^−7
Second quenching at 0°C	0.14	0.01	1.40×10^−7	0.18×10^−7
Second quenching at 20°C	0.15	0.01	1.42×10^−7	0.18×10^−7
Second quenching at 30°C	0.14	0.01	1.23×10^−7	0.10×10^−7
Second quenching at 40°C	0.15	0.01	1.37×10^−7	0.10×10^−7
Second quenching at 60°C	0.14	0.01	1.23×10^−7	0.18×10^−7