Table 2 Thermal properties and shape memory of nanocomposites and pristine polymer
From: Vegetable Oil-Based Hyperbranched Thermosetting Polyurethane/Clay Nanocomposites
Sample codes | Glass transition temperature (Tg °C) | Melting temperature (Tm °C) | Melting enthalpy (∆Hm J/g) | Shape retention (%) | Shape recovery (%) |
|---|---|---|---|---|---|
HBPU | −41 | 50 | 58.3 | 84.20 | 97 |
HBPU1 | −32 | 53 | 55.8 | 83.8 | 98.3 |
HBPU2.5 | −34 | 54 | 54.4 | 82.5 | 98.9 |
HBPU5 | −35 | 56 | 53.7 | 82.0 | 99.1 |