School of Engineering, Zhejiang A&F University, Lin'an 311300, China.
School of Engineering, Zhejiang A&F University, Lin'an 311300, China; Key Laboratory of Wood Science and Technology, Lin'an 311300, China.
Carbohydr Polym. 2017 Jul 15;168:265-273. doi: 10.1016/j.carbpol.2017.03.089. Epub 2017 Mar 29.
A self-reporting aerogel toward stress sensitive slectricity (SSE) was presented using an interconnected 3D fibrous network of Ag nanoparticles/cellulose nanofiber aerogel (Ag/CNF), which was prepared via combined routes of silver mirror reaction and ultrasonication. Sphere-like Ag nanoparticles (AgNPs) with mean diameter of 74nm were tightly anchored in the cellulose nanofiber through by the coherent interfaces as the conductive materials. The as-prepared Ag/CNF as a self-reporting material for SSE not only possessed quick response and sensitivity, but also be easily recovered after 100th compressive cycles without plastic deformation or degradation in compressive strength. Consequently, Ag/CNF could play a viable role in self-reporting materials as a quick electric-stress responsive sensor.
一种自报告气凝胶的压力敏感电致伸缩效应(SSE)被提出,使用的是通过银镜反应和超声结合的方法制备的 Ag 纳米粒子/纤维素纳米纤维气凝胶(Ag/CNF)的互联 3D 纤维网络。AgNPs(Ag 纳米粒子)的平均直径为 74nm,呈球形,通过相干界面紧密地固定在纤维素纳米纤维中,作为导电材料。所制备的 Ag/CNF 作为 SSE 的自报告材料,不仅具有快速响应和灵敏度,而且在 100 次压缩循环后可以轻松恢复,没有塑性变形或抗压强度下降。因此,Ag/CNF 可以在自报告材料中作为一种快速电应力响应传感器发挥作用。