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Black pigment special for automobile glass and preparation method thereof

A technology of automotive glass and melanin, which is applied in the field of special melanin for automotive glass and its preparation, can solve the problems of masking and corrosion resistance limitations, high energy consumption at firing temperature, etc., and achieve reduced energy consumption, good hiding power, and shielding properties. and good electrical conductivity

Pending Publication Date: 2019-12-13
山东省淄博市博山长虹陶瓷装饰材料厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the raw material ratio, production process and preparation method of melanin are to fully mix the required raw materials and grind them to a certain fineness, then fire at a high temperature to 900-1200°C, and then perform secondary grinding. The required firing temperature consumes less energy. Large; melanin produced according to the ratio of existing raw materials has certain requirements for blackness, masking performance after printing silver paste, and corrosion resistance.

Method used

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  • Black pigment special for automobile glass and preparation method thereof
  • Black pigment special for automobile glass and preparation method thereof
  • Black pigment special for automobile glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The special melanin for automobile glass of the present invention, by weight percentage, raw material composition is as follows:

[0029]

[0030] in:

[0031] Hue agent is Fe 2 o 3 .

[0032] The preparation method of special melanin for automobile glass of the present invention comprises the following steps:

[0033] (1) 27% CuO, 64% Cr 2 o 3 , 2% (NH 4 ) 6 Mo 7 o 24 4H 2 O, 2% ZnO, 5% Fe 2 o 3 After mixing evenly, put it into a ball mill and grind it until the particle size is ≤60μm, of which 90% of the particle size is less than 60μm, and then dry it at a temperature of 60°C for 12 hours. After drying, put it into a sagger and put it in a kiln High temperature firing;

[0034] (2) Add the black material fired at a certain temperature obtained in step (1) into a ball mill for secondary grinding until the particle size is 5 μm, wherein 90% of the particle size is 5 μm, and pulverized into powder to obtain the special melanin for automobile glass.

[0...

Embodiment 2

[0038] The special melanin for automobile glass of the present invention, by weight percentage, raw material composition is as follows:

[0039]

[0040]

[0041] in:

[0042] Mineralizer is H 3 BO 3 .

[0043] The preparation method of special melanin for automobile glass of the present invention comprises the following steps:

[0044] (1) 31% CuO, 60% Cr 2 o 3 , 3% (NH 4 ) 6 Mo 7 o 24 4H 2 O, 3% ZnO, 3% H 3 BO 3 After mixing evenly, put it into a ball mill to grind until the particle size is ≤60μm, of which 93% of the particle size is less than 60μm, and then dry it at a temperature of 90°C for 9 hours. After drying, put it into a sagger and place it in a kiln at a high temperature firing;

[0045] (2) Add the black material calcined at a certain temperature obtained in step (1) into a ball mill for secondary grinding until the particle size is 5 μm, wherein 95% of the particle size is less than 5 μm, and pulverized into powder to obtain the special melani...

Embodiment 3

[0049] The special melanin for automobile glass of the present invention, by weight percentage, raw material composition is as follows:

[0050]

[0051] in:

[0052] The masking agent is V 2 o 5 .

[0053] The preparation method of special melanin for automobile glass of the present invention comprises the following steps:

[0054] (1) 31% CuO, 62% Cr 2 o 3 , 3.5% V 2 o 5 Mix evenly with 3.5% ZnO, add to a ball mill and grind until the particle size is ≤60μm, of which the particle size is less than 60μm, accounting for 92%, and then dry at a temperature of 120°C for 6 hours. After drying, put it into a sagger fired in a kiln at high temperature;

[0055] (2) Add the black material fired at a certain temperature obtained in step (1) into a ball mill for secondary grinding to a particle size of 5 μm, wherein 5 μm accounts for 93%, and pulverize it into powder to obtain the special melanin for automotive glass.

[0056] The high-temperature firing described in step (...

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Abstract

The invention belongs to the technical field of new material manufacturing and application, and particularly relates to a black pigment special for automobile glass and a preparation method thereof. Araw material is composed of, by weight, 20 to 40% of CuO, 50 to 70% of Cr2O3, 0 to 5% of (NH4) 6Mo7O24.4H2O, 0 to 5% of ZnO and 1 to 5% of an auxiliary agent. The black pigment special for the automobile glass has the advantages of being high in blackness, high in shielding performance and good in corrosion resistance, and the shielding performance and the corrosion resistance are not limited after silver paste printing. According to the preparation method, the firing temperature is reduced to 850-1000 DEG C, the energy consumption is greatly reduced, and the blackness, the shielding property, the corrosion resistance and the like of finished products are improved; based on the annual output of 500 tons of the black pigment, per ton of the formula provided by the invention can save 30,000cubic meters of natural gas energy consumption or 50000 kilowatt-hours of electric energy consumption.

Description

technical field [0001] The invention belongs to the technical field of manufacturing and application of environment-friendly new materials, and in particular relates to a special melanin for automobile glass and a preparation method thereof. Background technique [0002] Since automotive glass is a reprocessing of ordinary flat glass, the (tempered) glass is a glass product with high mechanical strength and impact resistance. When tempered glass is subjected to external force, it is not easy to be damaged due to its high strength. Even if it is damaged, its fragments are honeycomb-shaped obtuse-angled small particles, without cutting edges, and will not hurt people. It can achieve a safe effect. It is mainly used in cars. , bus tailgate and side windows. Both front and rear glass are fired at different processes and temperatures, and black pigments are printed on the glass before firing. The black edge block of the front of the car mainly plays the role of decoration and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C1/04
CPCC03C1/04
Inventor 任明祥刘守江
Owner 山东省淄博市博山长虹陶瓷装饰材料厂
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