(A) Heat uptake of transgenic fibers.
The heat gain/loss characteristics of fibers were measured by DSC.
Sample sizes of 10 mg (no. 7148) and 10.06 mg (DP50) were used.
(B) Thermal conductivity measurements of transgenic fibers.
The heat flow rate through samples no. 7148 and control DP50 fibers was
monitored against temperature using steady-state equilibrium heat flow
method. A modified DSC (TA Instruments) was used for the thermal
conductivity measurements. Experimental conditions and results are
summarized in the figure. All conditions for DP50 were identical to
those shown for no. 7148, except: dimension = 6.61 mm × 2.36
mm and T2 = 302.18 K. T1, temperature at the bottom of the sample;
T2, temperature at the top of the sample; q, heat flow; L, heat flow
path; A, total area of the sample. (C) Comparison of
specific heat values of transgenic and control fibers by DSC. Specific heat values were obtained for
36°C and 60°C each. A sample size of 10 mg was used in the DP50
control, whereas 10.5 mg was used for no. 7148. Zero baseline was
established by measurement of Sapphire. Cell constant values are
E36°C = (0.7978 × 10 × 60.83)/(60
× 0.8 × 9.6) = 1.053. E60°C = (0.8432 ×
10 × 60.83)/(60 × 0.8 × 10.05) = 1.063.