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Study on Gelation, Properties and Micromorphology of Modified Nano-TiO2 Crosslinking Hydroxypropyl Guar Gum.
- Source :
- Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ); Jun2022, Vol. 47 Issue 6, p7001-7011, 11p
- Publication Year :
- 2022
-
Abstract
- In the study, a hydroxypropyl guar gum (HPG) gel was prepared using modified nano-TiO<subscript>2</subscript> particles as a crosslinking agent. Firstly, nano-TiO<subscript>2</subscript> particles were prepared using the sol–gel method. Nano-TiO<subscript>2</subscript> particles were spherical and densely distributed; the effective particle size was 29.0 nm, and particle size distribution was uniform. Then, the modified nano-TiO<subscript>2</subscript> particles were synthesized by modifying nano-TiO<subscript>2</subscript> with polyhydroxy carboxylate. The microstructure of nano-TiO<subscript>2</subscript> and modified nano-TiO<subscript>2</subscript> crosslinked HPG gel were investigated. The layered distribution and crosslinked network of the modified nano-TiO<subscript>2</subscript> gel were denser than that of nano-TiO<subscript>2</subscript> crosslinked HPG gel. The modified nano-TiO<subscript>2</subscript> crosslinked HPG gel shows stable viscoelasticity at 60 ℃. Compared with nano-TiO<subscript>2</subscript> crosslinked HPG gel, it has better temperature resistance and shear resistance, and can adapt to formation fracturing at 140 ℃, indicating that this gel may have potential application in fracturing. [ABSTRACT FROM AUTHOR]
- Subjects :
- GUAR gum
PARTICLE size distribution
SOL-gel processes
GELATION
Subjects
Details
- Language :
- English
- ISSN :
- 2193567X
- Volume :
- 47
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. )
- Publication Type :
- Academic Journal
- Accession number :
- 157261984
- Full Text :
- https://doi.org/10.1007/s13369-021-06242-x