Abstract
The temperature-dependent mechanical properties of polyethylene terephthalate (PET) polymers are investigated using force–distance curves, adhesion force, and atomic force microscope (AFM) nanolithography combined the heating techniques. The results show that the width of grooves on the polymers at 20–60°C were in the range of 14–363nm. The wear depth of the polymers increased with increasing heating temperature. A volume of 251.85–2422.66μm3 at a load of 30–50nN with heating to 30–60°C was removed, as compared to that of 26.60–70.30μm3 obtained at room temperature. The contact forces of PET started increasing at 9nN, whereas the size of the holes was average at a pressure. The results may be of importance in explaining the heating relationship among adhesion force, volume removal rate, and pressure.
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