Solution-processed crack-free oxide films formed using SiO2 nanoparticles and organoalkoxysiloxane precursors

Na, Moonkyong; Rhee, Shi‐Woo

doi:10.1016/j.apsusc.2015.03.043

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2016

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“…[1][2][3][4] The traits of nanoparticles are hardly embodied in usage because they are usually dispersed in medium of micro-size aggregation. [5][6][7] The study of improving dispersivity of Nano-SiO 2 in organic solvents has become very popular recently. Because Nano-SiO 2 can't be sufficiently dispersed on the O/W interface, its surfaces need to be organically modified.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Modified Nano-SiO₂ Oil Dispersion System and the Stability of Its O/W Emulsion

Zhou¹,

Wang²

2016

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Nano-SiO 2 was organically modified with silane coupling agent-KH570 to prepare the modified Nano-SiO 2 oil dispersion system. By increasing the dosage of KH570, the ζ-potential (absolute value) and the char yield values decreased gradually. When KH570 was 5%, the maximum contact angle with water reached 79.8 o. Then, the modified Nano-SiO 2 was composed with petroleum sulfonate (PS) and its ability of reducing the O/W interfacial tension was measured. The results showed that, O/W interfacial tension reduced to about 5.86×10-3 mN/m when the Nano-SiO 2 and petroleum sulfonate composite was mixed with the mass fraction of 0.2:0.3%. The emulsion stability coefficient was 2.15 after 120 min which was the minimum. It indicated that this compounded system had the best emulsifying ability because Nano-SiO 2 particles were dragged onto the O/W interface by the PS molecules to improve the intensity of O/W interface.

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Section: Introductionmentioning

confidence: 99%

Preparation of Modified Nano-SiO₂ Oil Dispersion System and the Stability of Its O/W Emulsion

Zhou¹,

Wang²

2016

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show abstract

Solution-processed crack-free oxide films formed using SiO2 nanoparticles and organoalkoxysiloxane precursors

Cited by 1 publication

References 20 publications

Preparation of Modified Nano-SiO₂ Oil Dispersion System and the Stability of Its O/W Emulsion

Preparation of Modified Nano-SiO₂ Oil Dispersion System and the Stability of Its O/W Emulsion

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