Alipanah Zhila, Zakerhamidi Mohammad Sadegh, Movla Hossein, Azizi Batool, Muševič Igor, Ranjkesh Amid
Faculty of Physics, University of Tabriz, Tabriz 5166614761, Iran.
Photonics Center of Excellence, University of Tabriz, Tabriz 5166614761, Iran.
ACS Omega. 2023 Mar 10;8(11):10555-10564. doi: 10.1021/acsomega.3c00417. eCollection 2023 Mar 21.
Recently, the design and fabrication of light-powered actuators have attracted immense attention because of the manufacturing of intelligent soft robots and innovative self-regulating devices. Accordingly, a liquid crystal polymer network (LCN) provides a promising platform due to its reversible and multistimulus-responsive shape-changing behaviors. In particular, doping nanoparticles with exclusive properties into the LCN can produce interesting results. In this work, we investigated a TiO nanoparticle-based LCN polymer light-powered actuator. TiO nanoparticles as an inorganic ultraviolet (UV)-light absorber can substantially affect the LCN polymer's oscillatory behavior. Our results demonstrate that the oscillation characteristics are directly influenced by the presence of nanoparticles, and we studied the influencing factors. The effectiveness of the elastic modulus, thermomechanical force, and curvature was investigated using different weight percentages of TiO nanoparticles. Our results show that, in the presence of TiO nanoparticles, the polymer chain order and inter-chain interactions in the polymer matrix as well as the structural deformation of relevant polymer surfaces are changed.
最近，由于智能软机器人和创新的自调节装置的制造，光驱动致动器的设计和制造引起了极大关注。因此，液晶聚合物网络（LCN）因其可逆和多刺激响应的形状变化行为而提供了一个有前景的平台。特别是，将具有独特性能的纳米颗粒掺杂到LCN中可以产生有趣的结果。在这项工作中，我们研究了一种基于TiO纳米颗粒的LCN聚合物光驱动致动器。TiO纳米颗粒作为一种无机紫外线（UV）吸收剂，可显著影响LCN聚合物的振荡行为。我们的结果表明，振荡特性直接受纳米颗粒存在的影响，并且我们研究了影响因素。使用不同重量百分比的TiO纳米颗粒研究了弹性模量、热机械力和曲率的有效性。我们的结果表明，在TiO纳米颗粒存在的情况下，聚合物基体中的聚合物链序和链间相互作用以及相关聚合物表面的结构变形会发生变化。
