A new chemical strategy: Mineralizer-free synthesis of iron zircon ultrafine particles by an epoxide assisted sol–gel route

Cui, Hongtao; Ren, Wanzhong

doi:10.1016/j.jnoncrysol.2008.08.009

Cited by 8 publications

(4 citation statements)

References 13 publications

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“…Previously, various red pigments based on hematite have been developed. Contemporary research on hematite red pigments has focused on controlling the particle size, distribution, dispersibility, and nanostructure of hematite, yielding novel red pigments with bright color and high chemical and/or thermal stabilities. − …”

Section: Introductionmentioning

confidence: 99%

Bright Yellowish-Red Pigment Based on Hematite/Alumina Composites with a Unique Porous Disk-like Structure

et al. 2020

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Inspired by a bacteriogenic, iron-based oxide material and a traditional Japanese red pigment, a bright yellowish-red pigment was prepared by heating an Al-containing iron oxyhydroxide precursor. The obtained red pigment had a unique porous disk-like structure, comprising Alsubstituted hematite particles and crystalline alumina nanoparticles. Although these disk-like structures loosely gathered to form an aggregate in powder, they can be easily dispersed into a single, disk-like structure by simple ultrasonic irradiation. The powder exhibited a bright yellowish-red color and high thermostability, making it attractive as a coloring material for various industrial products needing a bright-red color, high weather resistance, and durability. Quantitative color measurements revealed extremely high L*, a*, and b* values that are much greater than those of commercially available hematite. The thermostability test showed that even after exposure to high temperatures, the pigment retained the red color, indicating its high thermostability. The unique microstructure should be strongly related to the bright yellowish-red color and the high thermostability of the developed red pigment.

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Section: Introductionmentioning

confidence: 99%

Bright Yellowish-Red Pigment Based on Hematite/Alumina Composites with a Unique Porous Disk-like Structure

et al. 2020

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“…[14][15][16][17] Thus, ultrafine pigments have been widely applied in textile, papermaking, plastics, and other fields. However, few articles about ultrafine pigments usage in electropheretic paints have been reported.…”

Section: Introductionmentioning

confidence: 99%

An improvement of color electrophoretic paint via ultrafine modified pigment paste

Mao

Wang

et al. 2013

Journal of Adhesion Science and Technology

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The ultrafine paste used in electrophoretic paint was prepared via ultrasonic method with pigment yellow 83 (P.Y.83), octadecyl dimethyl benzyl ammonium chloride, and deionized water. The average particle size of the ultrafine paste was only 196 nm and zeta potential was 30 mV with ultrasound for 30 min and 2 wt.% cationic dispersant. The conductivity of the paint was improved as the cationic dispersant increased. Centrifugal stability of the paint with ultrafine paste reached the maximum at 2 wt.% cationic dispersant. Compared with the performances of cathodic electrophoretic paint with the ultrafine yellow paste, the anodic film was smooth, uniform, and neat with 0.5 wt.% cationic dispersant in the ultrafine yellow paste. Deposited amount of the anodic film was 27 g/m 2 , which was higher than the cathodic film. The curing property, adhesion, and chemical resistance of the cathodic film were better than the anodic film. Properties of five color cathodic paints (blue, yellow, red, black, and green) were discussed and were compared with the film of electrophoretic paint containing commercial pastes. Except the green film, the blue, yellow, red, and black films were smooth, fine, and uniform, and also provided good L-effect. The deposited amount of these films with excellent adhesive force was about 14-19 g/m 2 . The electrophoretic paints containing modified pigment pastes and commercial pigment pastes present good adhesion and chemical resistance.

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“…Among most processes, ferrous or ferric salts were often selected as starting materials to synthesize iron-inclusion pigments , in which hematite particles were produced and occluded in zircon simultaneously. Recently, we reported a modified sol−gel method to prepare gray and pink pigments by dispersing carbon black or hematite powders into a zircon precursor gel .…”

mentioning

confidence: 99%

“…Iron-pink and cadmium-sulfoselenide-red zircon pigments are representative inclusion pigments in which hematite or cadmium sulfosele-nide particles are occluded in a zircon matrix to give a pink or red color. [14][15][16][17] Among most processes, ferrous or ferric salts were often selected as starting materials to synthesize iron-inclusion pigments 18,19 in which hematite particles were produced and occluded in zircon simultaneously. Recently, we reported a modified sol-gel method to prepare gray and pink pigments by dispersing carbon black or hematite powders into a zircon precursor gel.…”

mentioning

confidence: 99%

Reactive Formation of Zircon Inclusion Pigments by Deposition and Subsequent Annealing of a Zirconia and Silica Double Shell

2009

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A novel general method for coating particles with a complex oxide was described. Zirconia precursor and silica layers with careful control of film thickness were coated separately onto hematite particles in corresponding solutions. A zircon shell was subsequently obtained by heat treatment at 800 degrees C for 3 h using LiF as a mineralizer. The as-prepared zircon-occluded hematite pigment gave a pink color to the glazed sample after annealing at 1120 degrees C. The current research suggests that various chromophoric particles can be encapsulated with zircon to prepare ceramic pigments for high-temperature use.

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A new chemical strategy: Mineralizer-free synthesis of iron zircon ultrafine particles by an epoxide assisted sol–gel route

Cited by 8 publications

References 13 publications

Bright Yellowish-Red Pigment Based on Hematite/Alumina Composites with a Unique Porous Disk-like Structure

Bright Yellowish-Red Pigment Based on Hematite/Alumina Composites with a Unique Porous Disk-like Structure

An improvement of color electrophoretic paint via ultrafine modified pigment paste

Reactive Formation of Zircon Inclusion Pigments by Deposition and Subsequent Annealing of a Zirconia and Silica Double Shell

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