Inorganic-organic hybrid pigments based on carminic acid and clay minerals
نویسندگان
چکیده
Hybrid pigments based on carminic acid (CA) stabilized by clay minerals have been prepared. Three different pathways were used: [email protected]; protected] saponite; and hydrogels of saponite-CA or montmorillonite-CA covered polyorganosilane (POS). Pigments characterized a set techniques including X-Ray diffraction (XRD), transmission electron microscopy (TEM), infrared spectroscopy (FTIR), solid state nuclear magnetic resonance (NMR) time-resolved fluorescence (TRF) spectroscopies. The color parameters, i.e., L*a*b*, measured. In addition, the photostability samples under visible light was evaluated. results showed that presented greater stability compared to obtained from greatest due coverage with POS acts as protective layer.
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ژورنال
عنوان ژورنال: Dyes and Pigments
سال: 2021
ISSN: ['1873-3743', '0143-7208']
DOI: https://doi.org/10.1016/j.dyepig.2021.109306