Preparation of Cellulose/Laponite Composite Particles and Their Enhanced Electrorheological Responses

Cellulose, as a natural polymer with an abundant source, has been widely used in many fields including the electric field responsive medium that we are interested in. In this work, cellulose micron particles were applied as an electrorheological (ER) material. Because of the low ER effect of the raw...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2021-03, Vol.26 (5), p.1482
Main Authors: Liu, Zhao, Zhao, Zhenjie, Jin, Xiao, Wang, Li-Min, Liu, Ying Dan
Format: Article
Language:English
Subjects:
cellulose
Cellulose - chemistry
composite
Electricity
electrorheological fluid
Laponite
Microscopy, Electron, Scanning - methods
sedimentation stability
Silicates - chemistry
Spectroscopy, Fourier Transform Infrared - methods
Suspensions - chemistry
X-Ray Diffraction - methods
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Summary:Cellulose, as a natural polymer with an abundant source, has been widely used in many fields including the electric field responsive medium that we are interested in. In this work, cellulose micron particles were applied as an electrorheological (ER) material. Because of the low ER effect of the raw cellulose, a composite particle of cellulose and Laponite was prepared via a dissolution-regeneration process. Scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) were used to observe the morphologies and structures of the composite particles, which were different from pristine cellulose and Laponite, respectively. The ER performances of raw cellulose and the prepared composite were measured by an Anton Paar rotational rheometer. It was found that the ER properties of the composite were more superior to those of raw cellulose due to the flake-like shapes of the composite particles with rough surface. Moreover, the sedimentation stability of composite improves drastically, which means better suspension stability.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules26051482