epoxy resin stickers wholesale notes and use methods of bronze powder - articlesfactory.com

by:ShunDing     2019-05-28
Lotus powder is a kind of floating Flake pigment.In the process of melting and grinding, a certain proportion of copper, zinc and aluminum alloy are added to meet the required specifications.The colors of copper powder are: Red Gold, Green Gold, red gold, copper gold, etc.
The thicker the bronze powder, the stronger the metal feel.It becomes more flashing and bright.If it is thinner, the sense of metal is reduced, the color is softer, and the hiding function is better.Copper Powder is stirred dozens of times in a solvent of 1:1 or 2:1 under mild stirring.
Under low shear stirring, a paste is formed about 15 minutes later.Add the required tone gold oil and stir well.The solvent is adjusted to the desired viscosity.
In order to avoid curling and crushing flaky iron powder particles during the dispersion process and reduce the optical effect, it is better to choose a blade mixer or a disk to disperse, Mediumspeed stir.At the same time, the use of nitrate cotton and epoxy resin should be avoided.Two is will Si Chemical reaction generated jelly;If these two resins are used, they should be used as much as possible in a short period of time.
Should be as much as possible "with resin of low acid value resin of acid value as low as possible.Aromatic Hydrocarbons and Ester help to completely moisten metal powder particles to achieve complete dispersion.The use of alcohol and Ketone solvents and lipid solvents with incomplete acidity should be avoided.
Be sure to use resin and solvent with high purity (low water content), containing a small amount of water, it is recommended to use a sieve to remove moisture before copper powder pigment.Fatty acids are added during grinding to reduce friction and protect copper from the surface of copper oxide on the protective layer of both fatty acids.At high temperature, water, sweat and alkaline media can easily damage the protective layer on the surface of copper powder, thus making it slowly oxidized and gradually losing its metallic luster.
Because the particle size distribution of the powder is too wide, the proportion of fine particles (
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