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Color-changing coating for copper

A technology of color-changing paint and copper nitrate, applied in the field of paint, can solve the problems of high discoloration temperature and low accuracy of fire-resistant paint, and achieve the effects of good light resistance and weather resistance, high accuracy and low discoloration temperature

Inactive Publication Date: 2014-03-26
JIANGSU PAQINI COPPER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] This application aims at the technical problems of high discoloration temperature and low precision of existing fireproof coatings, and provides a kind of discoloration coating for copper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A color-changing paint for copper, the composition of which is expressed in parts by mass: 100 parts of potassium iodide; 15 parts of nitric acid; 15 parts of copper nitrate; 15 parts of strontium nitrate; 25 parts of aluminum nitrate; 10 parts of mercury nitrate; ; 5 parts of europium trioxide; 10 parts of dysprosium trioxide; 10 parts of ammonium carbonate; 5 parts of ammonium bicarbonate; 15 parts of sulfur dioxide; 10 parts of water.

[0018] It changes from orange to red at 35 degrees Celsius, from red to orange yellow at 40 degrees Celsius, from orange yellow to orange red at 45 degrees Celsius, and from orange red to brown at 50 degrees Celsius.

[0019]

Embodiment 2

[0021] A color-changing paint for copper, the composition of which is expressed in parts by mass: 100 parts of potassium iodide; 30 parts of nitric acid; 20 parts of copper nitrate; 25 parts of strontium nitrate; 45 parts of aluminum nitrate; 25 parts of mercury nitrate; ; 10 parts of europium trioxide; 20 parts of dysprosium trioxide; 15 parts of ammonium carbonate; 10 parts of ammonium bicarbonate; 25 parts of sulfur dioxide; 20 parts of water.

[0022] It changes from orange to red at 35 degrees Celsius, from red to orange yellow at 40 degrees Celsius, from orange yellow to orange red at 45 degrees Celsius, and from orange red to brown at 50 degrees Celsius.

[0023]

Embodiment 3

[0025] A color-changing paint for copper, characterized in that: its composition expressed in parts by mass is: 100 parts of potassium iodide; 25 parts of nitric acid; 18 parts of copper nitrate; 20 parts of strontium nitrate; 35 parts of aluminum nitrate; 20 parts of mercury nitrate; 15 parts of silver nitrate; 8 parts of europium trioxide; 15 parts of dysprosium trioxide; 12 parts of ammonium carbonate; 8 parts of ammonium bicarbonate; 20 parts of sulfur dioxide; 15 parts of water.

[0026] It changes from orange to red at 35 degrees Celsius, from red to orange yellow at 40 degrees Celsius, from orange yellow to orange red at 45 degrees Celsius, and from orange red to brown at 50 degrees Celsius.

[0027] All components in the above examples are commercially available.

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PUM

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Abstract

A color-changing coating for copper comprises the components in parts by mass as follows: 100 parts of potassium iodide, 15-30 parts of nitric acid, 15-20 parts of cupper nitrate, 15-25 parts of strontium nitrate, 25-45 parts of aluminum nitrate, 10-25 parts of mercury nitrate, 10-20 parts of silver nitrate, 5-10 parts of europium oxide, 10-20 parts of dysprosium oxide, 10-15 parts of ammonium carbonate, 5-10 parts of ammonium bicarbonate, 15-25 parts of sulfur dioxide and 10-20 parts of water. The color-changing coating turns red from orange at the temperature of 35 DEG C, turns orange yellow from red at the temperature of 40 DEG C, turns orange red from orange yellow at the temperature of 45 DEG C and turns brown from orange red at the temperature of 50 DEG C.

Description

[0001] technical field [0002] The application belongs to the field of coatings, in particular to a color-changing coating for copper. [0003] Background technique [0004] Photochromic materials refer to a class of materials that can change color after being excited by a light source. Photochromic refers to the change of molecular structure of certain compounds under the action of light of a certain wavelength and intensity. It leads to a corresponding change in the color of its absorption peak of light, and this change is generally reversible. It has been more than 100 years since human beings discovered the phenomenon of photochromism. The first successful commercial application began in the 1960s. Amistead and Stooky, two material scientists from Corning Studio in the United States, first discovered the reversible photochromic properties of silver halide glasses, and then people made contributions to its mechanism and applications. A lot of research and development ...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D5/26C09D7/12
Inventor 王惠张松岩钱忆张陈新燕
Owner JIANGSU PAQINI COPPER IND
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