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Sericite powder and preparation process thereof

A sericite powder and preparation technology, which is applied in the field of sericite powder, can solve the problems of low apparent whiteness, incorrect color tone, and decreased chroma of pigments, and achieve the effect of pure color tone, high whiteness, and color change

Inactive Publication Date: 2021-01-22
滁州方大矿业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since sericite is a low-grade metamorphic mineral produced in sericite schist, it often has certain variegated colors. Directly applying sericite powder to pearlescent pigments will result in low apparent whiteness, poor color and luster. Not correct, the chroma decreases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A sericite powder, composed of the following raw materials in parts by weight: 70 parts of sericite powder, 10 parts of nano-titanium dioxide, 5 parts of nano-zinc oxide, 4 parts of nano-calcium carbonate, 3 parts of nano-silica, 3 parts of nano-alumina , 1 part of whitening agent, 1 part of antioxidant and 4 parts of auxiliary agent;

[0023] The brightener is a stilbene type brightener;

[0024] The antioxidant is one or more of butyl hydroxyanisole, dibutyl hydroxytoluene and tert-butyl hydroquinone;

[0025] The auxiliary agent is one or more of antimony trioxide, magnesium hydroxide and aluminum hydroxide.

[0026] A kind of preparation technology of sericite powder, comprises the following steps:

[0027] S1. Weigh the corresponding quality of the above raw materials (sericite powder, nano-titanium dioxide, nano-zinc oxide, nano-calcium carbonate, nano-silicon dioxide, nano-alumina), and put the above raw materials into a ball mill for ball milling. The ball mil...

Embodiment 2

[0034] A sericite powder, composed of the following raw materials in parts by weight: 75 parts of sericite powder, 15 parts of nano-titanium dioxide, 7 parts of nano-zinc oxide, 6 parts of nano-calcium carbonate, 8 parts of nano-silica, 5 parts of nano-alumina , 2 parts of whitening agent, 2 parts of antioxidant and 5 parts of auxiliary agent;

[0035] The brightener is a stilbene type brightener;

[0036] The antioxidant is one or more of butyl hydroxyanisole, dibutyl hydroxytoluene and tert-butyl hydroquinone;

[0037] The auxiliary agent is one or more of antimony trioxide, magnesium hydroxide and aluminum hydroxide.

[0038] A kind of preparation technology of sericite powder, comprises the following steps:

[0039] S1. Weigh the corresponding quality of the above raw materials (sericite powder, nano-titanium dioxide, nano-zinc oxide, nano-calcium carbonate, nano-silicon dioxide, nano-alumina), and put the above raw materials into a ball mill for ball milling. The ball m...

Embodiment 3

[0046] A sericite powder, composed of the following raw materials in parts by weight: 80 parts of sericite powder, 20 parts of nano-titanium dioxide, 10 parts of nano-zinc oxide, 8 parts of nano-calcium carbonate, 12 parts of nano-silica, 8 parts of nano-alumina , 3 parts of whitening agent, 3 parts of antioxidant and 6 parts of auxiliary agent;

[0047] The brightener is a stilbene type brightener;

[0048] The antioxidant is one or more of butyl hydroxyanisole, dibutyl hydroxytoluene and tert-butyl hydroquinone;

[0049] The auxiliary agent is one or more of antimony trioxide, magnesium hydroxide and aluminum hydroxide.

[0050] A kind of preparation technology of sericite powder, comprises the following steps:

[0051] S1. Weigh the corresponding quality of the above raw materials (sericite powder, nano-titanium dioxide, nano-zinc oxide, nano-calcium carbonate, nano-silicon dioxide, nano-alumina), and put the above-mentioned raw materials into a ball mill for ball milling...

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PUM

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Abstract

The invention relates to the technical field of sericite powder, in particular to sericite powder and a preparation process thereof. The sericite powder is prepared from the following raw materials inparts by weight: 70-80 parts of sericite powder, 10-20 parts of nano titanium dioxide, 5-10 parts of nano zinc oxide, 4-8 parts of nano calcium carbonate, 3-12 parts of nano silicon dioxide, 3-8 parts of nano aluminum oxide, 1-3 parts of a brightening agent, 1-3 parts of an antioxidant and 4-6 parts of an auxiliary agent. The modified sericite powder is prepared by grinding, mixing, calcining, cooling, grinding, mixing and collecting the raw materials, and the sericite powder is modified, so that the sericite powder is higher in whiteness, brighter in color and luster and pure in tone, and can be better applied to pearlescent pigments.

Description

technical field [0001] The invention relates to the technical field of sericite powder, in particular to a sericite powder and a preparation process thereof. Background technique [0002] In the prior art, sericite belongs to silicate minerals with a layered structure, which has good abrasion resistance and wear resistance, heat resistance and insulation, is difficult to dissolve in acid-base solutions, and has stable chemical properties. In addition, the chemical composition, structure and structure of sericite are similar to kaolin, and it has some characteristics of clay minerals. Therefore, sericite has many characteristics of mica minerals and clay minerals, and is widely used in rubber and plastics. , coatings, paints, ceramics, thermal insulation, cosmetics, pigments, papermaking, metallurgy and other industries. [0003] However, since sericite is a low-grade metamorphic mineral produced in sericite schist, it often has certain variegated colors. Directly applying s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/40C09C3/06C09C3/08
CPCC01P2006/65C01P2006/66C09C1/405C09C3/006C09C3/06C09C3/08
Inventor 童德双韩业平黄后林
Owner 滁州方大矿业发展有限公司