Fabrication of Flake‐Like Boehmite/Ceria or Zinc Oxide Composites for UV Shield Coating

Preparation of boehmite-silica composite particles using heterocoagulation was studied to improve the packing ratio and flowability of the particles used as fillers and flame retardants in resins. By measuring the zeta potential of each particle, silica showed a negative charge at pH > 2, and boehmite showed a positive charge at pH < 9. Therefore, mixing of each suspension of silica and boehmite prepared at pH 4 successfully produced boehmite-silica composite particles by heterocoagulation. We used two different silica particle sizes. Using smaller silica particles, composite particles uniformly coated with silica were obtained. The composite particles showed excellent fluidity in liquid paraffin, which suggested improved packing ratio.

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Preparation of Boehmite-Silica Composite Particles by Heterocoagulation

Dochi

Obata

Yoshida

et al. 2018

Funtai Kogakkaishi

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Fabrication of Flake‐Like Boehmite/Ceria or Zinc Oxide Composites for UV Shield Coating

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References 11 publications

Preparation of Boehmite-Silica Composite Particles by Heterocoagulation

Preparation of Boehmite-Silica Composite Particles by Heterocoagulation

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