Salah Tamem, Ziout Aiman
Department of Mechanical Engineering, UAE University, AlAin 15258, United Arab Emirates.
Materials (Basel). 2021 Mar 7;14(5):1264. doi: 10.3390/ma14051264.
In this research, polyester-based polymers/FeO nanocomposite foams were prepared in order to study their performance; namely shape recovery speed and actuation load. A foamed structure was obtained through a solid-state foaming process, which was studied and optimized in previous research. The optimum foaming parameters were applied in an attempt to achieve the highest foaming ratio possible. A Taguchi Map was then designed to determine the number of experiments to be conducted. The experimental results showed that the maximum actuation load obtained was 3.35 N, while optimal (fastest) recovery speed was 6.36 mm/min. Furthermore, temperature had no impact on the actuation load as long as a temperature above the T was applied. Moreover, the addition of nanoparticles reduced shape recovery speed due to discontinuity within the polymer matrix.
在本研究中，制备了聚酯基聚合物/FeO纳米复合泡沫材料，以研究其性能，即形状恢复速度和驱动负载。通过固态发泡工艺获得了泡沫结构，该工艺在先前的研究中已进行过研究和优化。应用最佳发泡参数以试图实现尽可能高的发泡倍率。然后设计了田口图来确定要进行的实验次数。实验结果表明，获得的最大驱动负载为3.35 N，而最佳（最快）恢复速度为6.36 mm/min。此外，只要施加高于T的温度，温度对驱动负载就没有影响。而且，由于聚合物基体内部的不连续性，纳米颗粒的添加降低了形状恢复速度。
