Mechanical Behavior of Shape Memory Polymers by 1WE Method: Application to Tecoflex (R)

作者：Schmidt Christina; Chowdhury A M Sarwaruddin^*; Neuking Klaus; Eggeler Gunther

来源：Journal of Thermoplastic Composite Materials, 2011, 24(6): 853-860.

DOI：10.1177/0892705711407785

• thermomechanical
• shape memory polymer
• programming
• Tecoflex (R)
• mechanical analysis

Thermomechanical cycles including programming, cooling, unloading, and heating to trigger the 1WE were examined for a shape memory polymer, Tecoflex (R) (TFX EG - 72D). Cycles were performed at 60 degrees C with 300% strain and a recovery time of 10 min. Strains evolving with time were estimated during the thermomechanical treatments for the total 50 cycles using 300% strain. Recovery ratios for the 300% strain were also estimated. It turns out that programming, cooling, unloading and heating to trigger the 1WE causes an increase of irreversible strain and is associated with a corresponding decrease of the intensity of the 1WE in particular during the first thermomechanical cycles.

• 出版日期2011-11