High-Stable Hybrid Pigments Prepared From Organic Chromophores and Fluorinated Hydrotalcites

Magali Hernández; Carlos Felipe; Ariel Guzmán-Vargas; José Luis Rivera; Enrique Lima

doi:10.20944/preprints202312.2242.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 29 December 2023 / Approved: 29 December 2023 / Online: 29 December 2023 (03:40:38 CET)

Structural hydroxide groups in layered magnesium-aluminum double hydroxides were partially replaced by fluoride ions. Fluorinated and fluorine-free materials were used as hosts for two dyes, carminic acid and hydroxyl naphthol blue, resulting in a hybrid pigment color palette. Additionally, the pigments were protected with a magnesium hydroxide phase to prevent the color from fading over time. The color properties of the pigments were significantly influenced by the host of dye, since the presence of fluorine directly influences the acid-base properties of the layered double hydroxides. Finally, the pigments were successfully applied to prepare colored creams.

hydrotalcite; layered double hydroxides; pigment; color; dyes; hybrid materials

Chemistry and Materials Science, Materials Science and Technology

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High-Stable Hybrid Pigments Prepared From Organic Chromophores and Fluorinated Hydrotalcites

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