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A kind of inorganic composite orange pigment and preparation method thereof

An orange pigment and inorganic composite technology, applied in the field of inorganic pigments, can solve the problems of poor weather resistance, temperature resistance and chemical stability, poor thermal stability and weather resistance, and affect the color performance of pigments, etc., to achieve good dispersion, thermal stability, etc. Good stability and weather resistance, strong hiding power

Active Publication Date: 2021-11-26
JINGDEZHEN CERAMIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since iron yellow is a monohydrate of iron oxide (Fe 2 o 3 ·H 2 O), the pigment is easy to lose crystal water and turn red after being heated, so its thermal stability and weather resistance are poor
In addition, the orange pigment prepared by mixing a certain proportion of inorganic red and yellow pigments generally has a darker color, which will affect the color performance of the pigment
Compared with inorganic pigments, although organic orange pigments have more types and bright colors, their weather resistance, temperature resistance and chemical stability are poor, and most of them contain toxic or volatile carcinogens, and their applications are also strictly restricted. Replaced by environmentally friendly inorganic pigments

Method used

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  • A kind of inorganic composite orange pigment and preparation method thereof
  • A kind of inorganic composite orange pigment and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0028] A kind of inorganic composite orange pigment of present embodiment, its chemical composition is Sn 1.3 Zn 0.7 Ti 1.5 Nb 0.5 o 7-δ , prepared by solid-phase method, the steps are as follows:

[0029] (1) with SnO, ZnO, TiO 2 , Nb 2 o 5 as raw materials, according to the chemical composition, mix evenly by wet ball milling with ethanol as the dispersion medium, the ball milling speed is 450r / min, and the ball milling time is 6h, to obtain the mixed material;

[0030] (2) The above mixed material is dried at a temperature of 75° C. to obtain a powder;

[0031] (3) The above-mentioned powder is packed in a corundum crucible, put into a tube furnace, and argon is introduced as a protective atmosphere, and the flow rate is 40mL / min; then the temperature is raised to 850°C at 5°C / min for firing, and the holding time is After 5 hours of firing, it was naturally cooled to room temperature, and a brightly colored inorganic composite orange pigment was obtained.

[0032] ...

Embodiment 2

[0034]A kind of inorganic composite orange pigment and preparation method thereof of the present embodiment, differs from embodiment one in that:

[0035] 1. Step (3) of the preparation method: heat up to 800° C. for firing.

[0036] 2. The inorganic composite orange pigment prepared in this example has L*, a*, and b* values ​​of 67.2, 29.1, and 47.7, respectively.

Embodiment 3

[0038] A kind of inorganic composite orange pigment and preparation method thereof of the present embodiment, differs from embodiment one in that:

[0039] 1. The chemical composition of the inorganic composite orange pigment is SnZnTi 1.2 Nb 0.8 o 7-δ .

[0040] 2. Step (3) of the preparation method: heat up to 850° C. for firing.

[0041] 3. The inorganic composite orange pigment obtained in this example has L*, a*, and b* values ​​of 71.4, 27.8, and 58.6, respectively.

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Abstract

The invention discloses an inorganic composite orange pigment, the chemical composition of which is Sn 2‑x Zn x Ti 2‑y Nb y o 7‑δ , 0.4≤x≤1.3, 0≤y≤1.0, by changing the content of Zn and Nb ions, orange pigments with different shades can be obtained. In addition, the preparation method of the above-mentioned inorganic composite orange pigment is also disclosed. The inorganic composite orange pigment of the present invention has uniform particle size and good dispersibility, has the advantages of environmental protection and non-toxicity, bright and bright color, strong hiding power, good thermal stability and weather resistance, and can completely replace traditional cadmium containing heavy metal ions Orange or iron oxide orange with poor stability and toxic organic orange pigments can meet the application requirements of different industries such as ceramics, glass, enamel, paint, ink and colored plastics.

Description

technical field [0001] The invention relates to the technical field of inorganic pigments, in particular to a novel environmentally friendly, non-toxic, brightly colored inorganic composite orange pigment and a preparation method thereof. Background technique [0002] Inorganic pigments have excellent weather resistance, temperature resistance, chemical stability and other performance advantages, and are widely used in the fields of ceramics, high-grade coatings, enamel, glass, ink, and environmental engineering plastic coloring. At present, the common inorganic pigments on the market mainly include black (such as copper chrome black, wrapped carbon black), red (such as cadmium red, cerium sulfide red, iron red), yellow (such as praseodymium yellow, titanium yellow, bismuth yellow, cadmium yellow ), blue (such as cobalt blue) and green (such as cobalt green, chrome green), etc., while single-phase inorganic orange pigments are rare. In practical industrial applications, ino...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G33/00
CPCC01G33/006C01P2004/61C01P2004/62C01P2006/62C01P2006/63C01P2006/64
Inventor 张小珍周小坚刘华锋江瑜华陈仁华陶锐常启兵汪永清
Owner JINGDEZHEN CERAMIC UNIV
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