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Black ceramic toner free of heavy metal and preparation method thereof

A technology of black ceramics and heavy metals, applied in the field of ceramic tile decoration, can solve the problems of physical injury of production personnel, restrict the development of ceramic ink, environmental pollution, etc., and achieve the effects of pure color, low package rate and cost reduction.

Inactive Publication Date: 2016-10-26
FOSHAN GAOMING HAIDI CERAMIC RAW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of using Zn, Pb, Cd, Sn and other heavy metal compound raw materials to make colorants, the pollution to the environment and the physical injury to production personnel all restrict the development of ceramic inks. It is urgent to develop a heavy metal-free ink. Method for making non-toxic colorant from raw materials

Method used

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  • Black ceramic toner free of heavy metal and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The invention discloses a heavy metal-free black ceramic toner, which is a black pigment wrapped in zirconium silicate, and the black pigment is a composite of multi-walled carbon nanotubes and carbon black. The preparation process of this black ceramic toner is as follows:

[0019] (1) Preparation of multi-walled carbon nanotubes / carbon black composite: reflux carbon black and multi-walled carbon nanotubes with concentrated nitric acid for 7 hours, filter with deionized water until neutral, and dry for later use. The weight ratio of black to multi-walled carbon nanotubes is 10:1; the carboxylated carbon black and KH540 are placed in a water bath for 3 hours under nitrogen protection conditions at 72°C, and are filtered with deionized water until neutral; in dilute ethanol solution Hydrolyze the carbon black grafted with KH540, and react with carboxylated multi-walled carbon nanotubes in toluene at 62°C for 5 hours after drying, then filter the product with deionized wa...

Embodiment 2

[0023] Based on Example 1, the only difference is that the molar ratio of Si:Zr in solution B and solution C=1:0.5, and the volume ratio of dispersion A:solution B=1:125; the colorant is pure and stable.

Embodiment 3

[0025] Based on Example 1, the only difference is that the molar ratio of Si:Zr in solution B and solution C=1:0.8, and the volume ratio of dispersion A:solution B=1:130; the colorant is pure and stable.

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Abstract

The invention discloses black ceramic toner free of heavy metal and a preparation method thereof. The preparation method comprises the following steps of 1, preparation of a multi-walled carbon nanotube / carbon black compound; 2, preparation of multi-walled carbon nanotube / carbon black compound dispersion liquid; 3, preparation of ceramic black pigment. The multi-walled carbon nanotube / carbon black compound is adopted as a color generation body, the purpose of effectively lowering the cost is achieved, and the problem that the encapsulation rate is not high and the problem that the multi-walled carbon nanotube / carbon black compound is likely to be agglomerated in the preparation process are solved. The black ceramic toner has the advantages of being pure in color, easy to prepare, wide in raw material, low in price, easy to obtain and environmentally friendly, and can be applied to coloring ceramic glaze or blanks, and therefore the wide market space is achieved.

Description

technical field [0001] The invention relates to the technical field of ceramic tile decoration, in particular to a preparation method of heavy metal-free black ceramic toner. Background technique [0002] With the continuous development of modern society, the field of use of wall tiles is also expanding, followed by wall tiles not only to meet the basic requirements of the two basic attributes of practicality and aesthetics, but also environmental protection attributes are becoming increasingly important. Wall tiles that do not contain heavy metals just cater to the modern people's pursuit of "green and environmental protection" for home life. It makes the product of wall tiles become people's "Health Guardian Messenger". [0003] The black ceramic inks currently used in the market are mainly inks made of color-developing heavy metal oxides, silicates and aluminates and other auxiliary raw materials fired into colorants. In the process of using Zn, Pb, Cd, Sn and other he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/00C09C1/56C09C3/06C09C3/08
CPCC09C1/0009C09C1/56C09C3/006
Inventor 邱杰华江潺
Owner FOSHAN GAOMING HAIDI CERAMIC RAW MATERIAL CO LTD
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