The Effect of Starch and Magnetite on the Physicochemical Properties of Polyurethane Composites for Hyperthermia Treatment

Figure 11

Ultrasonic wave velocity for PU with different starch content (a) without magnetite and (b) with 1% of magnetite and for PU with different magnetite content (c) without the addition of starch and (d) with 100% of starch.

(a)

(b)

(c)

(d)