Rheological behavior of fumed silica suspension in polyethylene glycol
β Scribed by Wu, Qiu-mei ;Ruan, Jian-ming ;Huang, Bai-yun ;Zhou, Zhong-cheng ;Zou, Jian-peng
- Book ID
- 107506488
- Publisher
- Chinese Electronic Periodical Services
- Year
- 2006
- Tongue
- English
- Weight
- 653 KB
- Volume
- 13
- Category
- Article
- ISSN
- 1005-9784
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## Abstract The rheological properties of hydrophilic fumed silica dispersed in polyethylene glycol (PEG) were investigated. The dispersion was prepared by dispersing the fumed silica in PEG with various concentrations. The reversible solβgel transition was observed over 5 wt % of silica concentrat
Fumed silica was surface treated by hexyl (C6), octyl (C8), decyl (C10), hexadecyl (C16), and octadecyl(C18)trimethoxysilanes, and the products were evaluated from various aspects. The amounts of alkyl group introduced on silica surface were all within the range from 22 to 25 mmol/100 g. Such fumed
Aqueous suspensions of fumed silica and pyrocarbon/silica (CS) in the presence of dissolved poly(ethylene glycol) (PEG) were studied using 1 H NMR spectroscopy with freezing-out of bulk water and quantum chemical computations of the chemical shifts. The freezing effect for PEG/water is akin to that