A kind of water-based nano flake copper-zinc alloy slurry and preparation method thereof

A nano-flaky, zinc alloy technology, applied in the direction of pigment paste, etc., can solve the problems of difficult to meet the water-based modification requirements of copper-gold pigments, difficult to meet high-brightness copper-gold pigments, small diameter and thickness of copper-gold powder, etc., to achieve good Mirror effect, regular shape, good dispersion effect

Active Publication Date: 2020-10-20
HEFEI SUNRISE PIGMENTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The copper-gold powder prepared by the traditional ball milling method is difficult to meet people's demand for high-brightness copper-gold pigments due to its small diameter-thickness ratio, wide particle size distribution, and low brightness. In recent years, people have proposed a physical vapor deposition (PVD) method to prepare nano Flaky copper-zinc alloy pigments, the prepared products have been widely used in organic solvent systems, and the preparation technology is quite mature
However, the nano-flaky copper-gold pigments prepared by physical vapor deposition method are difficult to meet the water-based modification requirements of copper-gold pigments by conventional copper-gold pigment modification methods due to the extremely thin copper-gold flakes.

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0028] A kind of water-based nano flake copper-zinc alloy slurry proposed by the present invention, its raw material comprises by mass percentage: 10% of flake copper-zinc alloy particles, 3% of alignment agent, 2% of surface treatment agent, 10% of thickener, Co-solvent 15%, deionized water 60%.

Embodiment 2

[0030] A kind of aqueous nano flake copper-zinc alloy slurry that the present invention proposes, its raw material comprises by mass percentage: flaky copper-zinc alloy particle 20%, carboxymethyl cellulose 1%, 3-aminopropylmethyl diethoxy 4% base silane, 1% non-ionic emulsion of oxidized high-density polyethylene wax, 2% modified ethylene-vinyl acetate copolymer emulsion, 5% n-propanol, 6% dipropylene glycol methyl ether, diethylene glycol butyl ether 7%, isobutanol 4%, deionized water 50%.

[0031] The preparation method of the above-mentioned water-based nano-flaky copper-zinc alloy slurry proposed by the present invention comprises the following steps:

[0032] 1, hydroxypropyl methyl cellulose is smooth rolled on the polymer film surface, then dry to obtain the first film;

[0033] II. Depositing or sputtering a smooth and smooth nano-copper-zinc alloy film on the coating surface of the first film by evaporation-condensation method or sputtering method to obtain the seco...

Embodiment 3

[0038] A kind of aqueous nano flake copper-zinc alloy slurry that the present invention proposes, its raw material comprises by mass percentage: flake copper-zinc alloy particle 12%, hydroxypropyl methylcellulose 2.5%, 3-aminopropyltrimethoxy Silane 1%, N-2-aminoethyl-3-aminopropylmethyldimethoxysilane 1.5%, modified ethylene-vinyl acetate copolymer emulsion 2%, modified paraffin anionic wax emulsion 2%, modified Non-ionic emulsion of permanent polypropylene wax 4%, ethanol 6%, ethylene glycol ether 6%, butanol 6%, dispersant BYK-2091 2%, deionized water 55%.

[0039] The preparation method of the above-mentioned water-based nano-flaky copper-zinc alloy slurry proposed by the present invention comprises the following steps:

[0040] 1, the flat roll coating of water-based acrylic resin on the polyethylene terephthalate film surface, then dry to obtain the peelable polymer film;

[0041] II. Deposit or sputter a smooth nano-copper-zinc alloy film on the coating surface of the ...

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Abstract

The invention discloses a water-based nano-sheet copper-zinc alloy paste, which comprises the following raw materials by mass percentage: 10 to 20 percent of flake copper-zinc alloy particles, 1 to 3 percent of orientated alignment agent, 2 to 4 percent of surface treatment agent, 3 to 10% of thickener, 15 to 25% of cosolvent, 0 to 2% of dispersant, and 50 to 60% of deionized water. The dispersant is one of BYK-2091, BYK-184, BYK-185, BYK-187, BYK-190, BYK-191, BYK-192, BYK-193, BYK-194N, BYK-198, BYK-199, BYK-2010, BYK-2012 and BYK-2015 or a composition thereof. The invention also discloses a preparation method of the water-based nano flake copper-zinc alloy paste. The water-based nano flake copper-zinc alloy paste obtained by the invention has the advantages of regular shape of copper-zinc alloy particles, large diameter-thickness ratio, good dispersibility and good storage stability.

Description

technical field [0001] The invention relates to a preparation process of new metal materials, in particular to a water-based nano-sheet-shaped copper-zinc alloy slurry and a preparation method thereof. Background technique [0002] Flake copper-zinc alloy powder is also called imitation gold-copper alloy powder, commonly known as "copper gold powder". Because of its bright and good light reflection effect, the metal color is lifelike like gold and magnificent. Therefore, it is widely used in various modern decorations, tobacco and alcohol Such as high-grade color printing and packaging, automobile and motorcycle topcoat, handicraft decoration and many other industrial fields. [0003] With the continuous enhancement of people's awareness of environmental protection and the continuous improvement of government environmental protection regulations, traditional organic solvent-based coatings will inevitably be replaced by environmentally friendly water-based coatings. The coppe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D17/00
CPCC09D17/004
Inventor 董前年朱胜利王蓓蓓操玉节朱双单
Owner HEFEI SUNRISE PIGMENTS
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