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Is Chitosan the Promising Candidate for Filler in Nature-Friendly Electrorheological Fluids?
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2021-02-26 , DOI: 10.1021/acssuschemeng.0c08793 Nikita M. Kuznetsov 1 , Yuriy D. Zagoskin 1 , Artem V. Bakirov 1, 2 , Artem Yu. Vdovichenko 1, 2 , Sergey N. Malakhov 1 , Alina P. Istomina 1 , Sergei N. Chvalun 1, 2
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2021-02-26 , DOI: 10.1021/acssuschemeng.0c08793 Nikita M. Kuznetsov 1 , Yuriy D. Zagoskin 1 , Artem V. Bakirov 1, 2 , Artem Yu. Vdovichenko 1, 2 , Sergey N. Malakhov 1 , Alina P. Istomina 1 , Sergei N. Chvalun 1, 2
Affiliation
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In this study, an electrorheological effect of the suspensions containing porous chitosan particles in olive oil in a wide range of electric fields is reported. Porous chitosan particles were produced by freeze-drying. The structure of the filler was characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, and X-ray scattering. Electrorheological behavior of low-filled fluids (0.1, 0.2, 0.5, and 1.0 wt %) was studied in shear and oscillation modes. Rheological data were fitted by Bingham, Cho–Choi–Jhon, and Seo–Seo models. Conductivity measurements were carried out to characterize the electrophysical properties of studied fluids. Polarization processes were considered from the standpoint of the Cole–Cole equation. Natural biodegradable materials such as chitosan and olive oil were used as components. The fluids showed high response to electric field and stable cyclic operation in on/off mode at extremely low concentrations. The yield stress reaches about 100 Pa for a 1 wt % suspension under an electric field of just 1 kV/mm. The sedimentation stability of the samples dramatically increases when the percolation threshold is passed. The sedimentation ratio at 1 wt % of the filler content remains at the level of 90% after almost a month. Thus, suspensions were considered as an alternative to typical silicon oil-based electrorheological fluids.
中文翻译：
壳聚糖是否是适合自然界的电流变液中填充剂的有前途的候选者？
在这项研究中，报道了在广泛的电场中橄榄油中含有多孔壳聚糖颗粒的悬浮液的电流变效应。通过冷冻干燥产生多孔的壳聚糖颗粒。填料的结构通过傅里叶变换红外光谱，扫描电子显微镜和X射线散射进行表征。在剪切和振荡模式下研究了低填充流体（0.1、0.2、0.5和1.0 wt％）的电流变行为。流变学数据由Bingham，Cho–Choi–Jhon和Seo-Seo模型拟合。进行电导率测量以表征所研究流体的电物理性质。从Cole-Cole方程的角度考虑了极化过程。天然可生物降解的材料，如壳聚糖和橄榄油被用作成分。在极低的浓度下，流体在开/关模式下显示出对电场的高响应和稳定的循环运行。在仅1 kV / mm的电场下，对于1 wt％的悬浮液，屈服应力达到约100 Pa。超过渗滤阈值时，样品的沉降稳定性会大大提高。在近一个月后，填料含量为1 wt％时的沉降率保持在90％的水平。因此，悬浮液被认为是典型的基于硅油的电流变流体的替代品。超过渗滤阈值时，样品的沉降稳定性会大大提高。在近一个月后，填料含量为1 wt％时的沉降率保持在90％的水平。因此，悬浮液被认为是典型的基于硅油的电流变流体的替代品。超过渗滤阈值时，样品的沉降稳定性会大大提高。在近一个月后，填料含量为1 wt％时的沉降率保持在90％的水平。因此，悬浮液被认为是典型的基于硅油的电流变流体的替代品。
更新日期：2021-03-15
中文翻译：
壳聚糖是否是适合自然界的电流变液中填充剂的有前途的候选者？
在这项研究中，报道了在广泛的电场中橄榄油中含有多孔壳聚糖颗粒的悬浮液的电流变效应。通过冷冻干燥产生多孔的壳聚糖颗粒。填料的结构通过傅里叶变换红外光谱，扫描电子显微镜和X射线散射进行表征。在剪切和振荡模式下研究了低填充流体（0.1、0.2、0.5和1.0 wt％）的电流变行为。流变学数据由Bingham，Cho–Choi–Jhon和Seo-Seo模型拟合。进行电导率测量以表征所研究流体的电物理性质。从Cole-Cole方程的角度考虑了极化过程。天然可生物降解的材料，如壳聚糖和橄榄油被用作成分。在极低的浓度下，流体在开/关模式下显示出对电场的高响应和稳定的循环运行。在仅1 kV / mm的电场下，对于1 wt％的悬浮液，屈服应力达到约100 Pa。超过渗滤阈值时，样品的沉降稳定性会大大提高。在近一个月后，填料含量为1 wt％时的沉降率保持在90％的水平。因此，悬浮液被认为是典型的基于硅油的电流变流体的替代品。超过渗滤阈值时，样品的沉降稳定性会大大提高。在近一个月后，填料含量为1 wt％时的沉降率保持在90％的水平。因此，悬浮液被认为是典型的基于硅油的电流变流体的替代品。超过渗滤阈值时，样品的沉降稳定性会大大提高。在近一个月后，填料含量为1 wt％时的沉降率保持在90％的水平。因此，悬浮液被认为是典型的基于硅油的电流变流体的替代品。
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