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Dispersion and Rheological Properties of Aqueous Graphene Suspensions in Presence of Nanocrystalline Cellulose
- Source :
- Journal of Polymers and the Environment. 26:3502-3510
- Publication Year :
- 2018
- Publisher :
- Springer Science and Business Media LLC, 2018.
-
Abstract
- The possibility and feasibility of nanocrystalline cellulose (NCC) for dispersing hydrophobic graphene in aqueous solutions were studied in the present work. The dispersion properties of graphene particles in aqueous media as a function of various amounts of NCC were investigated. The rheological behavior of NCC-dispersed graphene suspensions was studied, and a polynomial model was proposed and employed to simulate the obtained shear flow of graphene suspensions. The results of UV–Vis analysis and sedimentation test suggested that the increased NCC addition significantly led to the improved dispersion properties of graphene suspensions. Rheological behavior measurements demonstrated that graphene suspensions exhibited a reduction trend in the shear viscosity, shear stress, and viscoelasticity with the increased amount of NCC addition. Meanwhile, the shear viscosity and shear stress of graphene suspensions were found to show a dependency on the process temperature. The above results supported the conclusion that NCC is a promising candidate for improving the dispersion and flowability of graphene in aqueous media.
- Subjects :
- Environmental Engineering
Materials science
Aqueous solution
Polymers and Plastics
Graphene
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Viscoelasticity
Nanocrystalline material
0104 chemical sciences
law.invention
Rheology
Chemical engineering
law
Materials Chemistry
Shear stress
0210 nano-technology
Shear flow
Dispersion (chemistry)
Subjects
Details
- ISSN :
- 15728919 and 15662543
- Volume :
- 26
- Database :
- OpenAIRE
- Journal :
- Journal of Polymers and the Environment
- Accession number :
- edsair.doi...........65290619a2c41267e421d984f07a8d1c