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Preparation of stable aqueous suspensions of antimony-doped tin oxide nanoparticles used for transparent and thermal insulation fluorocarbon coating

Authors
  • Tan, Quan1
  • Yu, Gang1
  • Liao, Yuan1
  • Hu, Bonian1, 2
  • Zhang, Xueyuan1
  • 1 Hunan University, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Changsha, 410082, People’s Republic of China , Changsha (China)
  • 2 Hunan Institute of Technology, Department of Materials and Chemical Engineering, Hengyang, 421002, People’s Republic of China , Hengyang (China)
Type
Published Article
Journal
Colloid & Polymer Science
Publisher
Springer-Verlag
Publication Date
Aug 23, 2014
Volume
292
Issue
12
Pages
3233–3241
Identifiers
DOI: 10.1007/s00396-014-3372-z
Source
Springer Nature
Keywords
License
Yellow

Abstract

In order to prepare the highly stable aqueous suspensions of antimony-doped tin oxide (ATO) used for the transparent and thermal insulation fluorocarbon coating, the effect of sodium polyacrylate (PAAS) and polyvinyl alcohol (PVA) on the stability of the suspensions was investigated. The stability and dispersity of the suspensions were characterized using zeta potential analyzer, ultraviolet–visible spectrophotometer, and scanning electron microscope. No sediments were observed after 6-month storage of the ATO suspensions containing 0.1 wt% PAAS and 2.0 wt% PVA. The reason why aqueous suspensions were capable of stabilization was explained from a theoretical perspective. A new model of steric hindrance for colloid particles stabilized by binary dispersant was proposed, which may have positive contribution to other colloid system containing two dispersants. A nano-composite fluorocarbon coating, exhibiting a good thermal insulation and high transmittance, was formed after ATO suspensions were added in fluorocarbon emulsion. The temperature inside the chamber was decreased by 6.0 °C, and 75.0 % visible light rays could pass through the coating.

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