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Aqueous bronze pigment and preparation method thereof

A copper-gold and pigment technology, which is applied in the field of water-based copper-gold pigment and its preparation, can solve the problems of incomplete coating, unstable hue, uneconomical and environmental protection, etc., and achieve stable hue, simple preparation method, and firm coating full effect

Pending Publication Date: 2018-12-07
清远市绚淳环保新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of incomplete coating, unstable hue, and uneconomical and environmental protection of the existing copper and gold powder surface treatment, the present invention proposes a water-based copper-gold pigment with firm and complete coating, stable hue, and economical and environmental protection in the water-based system. and its preparation method

Method used

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  • Aqueous bronze pigment and preparation method thereof
  • Aqueous bronze pigment and preparation method thereof
  • Aqueous bronze pigment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Water-based copper-gold pigments have the following components:

[0033]

[0034] The preparation method of water-based copper-gold pigment is as follows:

[0035] Step 1: Add 1,800 grams of medical white oil to 6,200 grams of copper-gold powder, and stir in a kneader for half an hour to form a copper-gold slurry.

[0036] Step 2: Add 20 grams of benzotriazole corrosion inhibitor, stir for half an hour, and mix well.

[0037] Step 3: Add 1500 grams of polyethoxy isomeric tridecanol and 100 grams of propyl phosphoric acid, stir for two hours, and mix well.

[0038] Step 4: Add 380 grams of ammonium alginate, stir for one hour, and mix well.

[0039] Step 5: Take out the slurry mixture, and use screw extrusion to granulate. The diameter of the particles is 3mm.

[0040] Step 6: Vacuum-dry the manufactured pellets in a baking tray to remove the solvent, the baking temperature is 70°C, and the vacuum degree is -100kPa.

Embodiment 2

[0042] Water-based copper-gold pigments have the following components:

[0043]

[0044] The preparation method steps of water-based copper-gold pigment are as follows:

[0045] Step 1: Add 1,350 grams of medical white oil to 5,400 grams of copper-gold powder, and stir in a kneader for half an hour to form a copper-gold paste.

[0046] Step 2: Add 60 grams of benzotriazole corrosion inhibitor, stir for half an hour, and mix well.

[0047] Step 3: Add 2250 grams of polyoxyethylene-polyoxypropylene block copolymer and 300 grams of sulfonic acid-based water-based polyester, stir for two hours, and mix well.

[0048] Step 4: Add 640 grams of polyvinylpyrrolidone, stir for one hour, and mix well.

[0049] Step 5: Take out the slurry mixture, and use screw extrusion to granulate. The diameter of the particles is 5mm.

[0050] Step 6: Vacuum-dry the manufactured pellets in a baking tray to remove the solvent, the baking temperature is 50°C, and the vacuum degree is -90kPa.

Embodiment 3

[0052] Water-based copper-gold pigments have the following components:

[0053]

[0054] The preparation method steps of water-based copper-gold pigment are as follows:

[0055] Step 1: Add 1,200 grams of medical white oil to 4,300 grams of copper-gold powder, and stir in a kneader for half an hour to form a copper-gold paste.

[0056]The second step: add 100 grams of 2-mercaptobenzothiazole corrosion inhibitor, stir for half an hour, and mix well.

[0057] Step 3: Add 3000 grams of polyoxyethylene-polyoxypropylene block copolymer and 400 grams of sodium polyacrylate, stir for two hours, and mix well.

[0058] Step 4: Add 1000 grams of cross-linked polyvinylpyrrolidone, stir for one hour, and mix well.

[0059] Step 5: Take out the slurry mixture, and use screw extrusion to granulate. The diameter of the particles is 4mm.

[0060] Step 6: Vacuum-dry the produced pellets in a baking tray to remove the solvent, the baking temperature is 90°C, and the vacuum degree is -80kP...

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Abstract

The invention discloses an aqueous bronze pigment and a preparation method thereof. The aqueous bronze pigment is prepared from following raw materials in percentage by weight: 55 to 80% of bronze slurry, 0.1 to 1% of corrosion inhibitor, 15 to 30% of organic coating material, 1 to 5% of dispersant, and 1 to 10% of disintegrating agent; wherein the bronze slurry is prepared by adding bronze powderinto a solvent (20-30%). The problems of a conventional bronze powder surface treatment are solved. The provided aqueous bronze pigment has the advantages of complete and firm coating, stable color phase, and economic and environmentally friendly process in an aqueous system.

Description

technical field [0001] The invention relates to metal powder surface treatment technology, in particular to a water-based copper-gold pigment and a preparation method thereof. Background technique [0002] Copper gold powder is a very fine flake alloy powder made of copper and zinc as the main raw materials. Because of the different zinc content, it will appear yellow, golden, red and other colors. Copper gold powder can be widely used in printing, textile, printing, architectural decoration, craft jewelry, metal sculpture and other industries. At present, the imitation metal coatings and inks prepared from copper and gold powder are still mainly solvent-based. The large amount of solvent released has caused great pressure on the ecological environment and will also damage people's health. With the enhancement of people's awareness of environmental protection and the promulgation of national environmental protection policies and regulations, water-based imitation metal coat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/62C09D11/037
CPCC09D7/62C09D11/037
Inventor 林海晖曹彩丹
Owner 清远市绚淳环保新材料有限公司
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