4D fibrous materials: characterising the deployment of paper architectures
4D fibrous materials: characterising the deployment of paper architectures
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DOI：
10.1088/0964-1726/25/9/095052
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发表时间：
2016-09-01
影响因子：
4.1
通讯作者：
Trask, Richard S.
中科院分区：
文献类型：
--
作者：
Mulakkal, Manu C.;Seddon, Annela M.;Trask, Richard S.
使用流体介质作为变形刺激的折叠纸结构的部署提出了一种能够自致动的简单且廉价的方法;其中基本原理可以被转化为开发能够可编程致动的智能纤维材料。在这项研究中，我们研究了不同的纸张结构和它们的刺激机制折叠部署，包括孔隙率，水分，表面活性剂浓度，温度和角质化的影响。我们观察到，驱动时间减少与纸张克重，通过添加表面活性剂，当温度升高时，在流体-蒸汽界面。在纤维结构内存在水化、水运输和氢键相互作用的明显效果，其驱动折叠区域的展开。纤维体积分数和功能性填料在形状恢复的重要性也被观察到，以及多层复合纸系统的效果。这里所示的设计指南将告知合成纤维致动器的重复部署的发展。
Deployment of folded paper architecture using a fluid medium as the morphing stimulus presents a simple and inexpensive methodology capable of self-actuation; where the underlying principles can be translated to develop smart fibrous materials capable of programmable actuations. In this study we characterise different paper architectures and their stimuli mechanisms for folded deployment; including the influence of porosity, moisture, surfactant concentration, temperature, and hornification. We observe that actuation time decreases with paper grammage; through the addition of surfactants, and when the temperature is increased at the fluid-vapour interface. There is a clear effect of hydration, water transport and the interaction of hydrogen bonds within the fibrous architecture which drives the deployment of the folded regions. The importance of fibre volume fraction and functional fillers in shape recovery was also observed, as well as the effect of a multilayer composite paper system. The design guidelines shown here will inform the development of synthetic fibrous actuators for repeated deployment.