Year1
- 产品型号：
- 303
- 规格：
- 10~60um
- 产地：
- 中国
. It has excellent sulfide resistance and does not produce discoloration. It can withstand high temperatures of ℃ and can be used for baking paint. Excellent light resistance and weather resistance, meeting demanding usage requirements. It has been widely used in the coating of automobiles, bicycles, building materials, furniture and other products as well as decorations, toys, stationery, cosmetics, containers, leather and other products of different backgrounds. The method of using pearlescent powder is very simple. You only need to add an appropriate amount to various transparent substrates to get
pearlescent coating. However, the final pearlescent luster and unique hue will completely depend on the directional and parallel arrangement of the pearlescent powder. Normally, the flaky structure of Yixincai Pearlescent Powder will follow the laws of physics. The flowing liquid in the paint will automatically be arranged in parallel according to the direction of flow. When the solvent in the paint evaporates or chemical
After the reaction increases the viscosity, this directional parallel arrangement will be fixed, so the good pearlescent luster and
special hue are presented. However, if the coating is too thick, the solvent evaporates at a high rate or the construction temperature is extremely low, the viscosity of the coating will increase too slowly, causing the Yixincai Pearlescent Powder to return to its arbitrary arrangement. It will not produce a pearlescent effect, making the coating dull and rough, and will not produce a gorgeous hue. It can be seen that for different coating systems, appropriate drying speed and appropriate viscosity should be selected, and it is very important to find the best ratio through experiments. , The amount of pearlescent powder added is completely determined according to different coating thickness, construction method, transparency, required covering area and pearlescent effect. The general addition amount is (weight ratio), but sometimes, the pearlescent powder can produce a special transparent flash effect. For thin coatings, the addition amount should be increased appropriately. Sometimes it may Up to
Under normal circumstances, it is not recommended to use higher pigment amounts. Too much pearlescent powder will prevent the directional parallel arrangement, so that the pearlescent effect cannot be reflected., wetting, dispersing and mixing In order to make it easier to disperse and use
, it is recommended to wet the pearlescent material, preferably to prepare it into a pigment slurry, so as to avoid the generation of more air bubbles during stirring. Usually it has a considerable The specific surface area makes wetting very simple and fast. In order to ensure the stability of the hue
and avoid the occurrence of flocculation, it is recommended that the wetting time of pearlescent pigments be about an hour.
This can ensure the hue The consistency of the pearlescent material and avoid flying of the pearlescent material. When mixing, simply stir to disperse evenly. The pearlescent lamellar structure and brittleness determine that high shear force (such as high-speed dispersion) cannot be used during mixing. Machine), grinding (such as roller mill, ball mill) dispersion method. This method will cause the pearlescent powder flake crystal
to be crushed and cracked, thus reducing the pearlescent effect, or even having no luster. When it must be used High-speed dispersing machine
When dispersing, the dispersion time should be as short as possible. Generally, the pearlescent material should be added last after all other pigments are dispersed evenly. The settling of considerable flaky crystals is inevitable. This can be precisely controlled by using a certain amount of flocculant to form a loose, easily redispersible sediment that requires simple stirring or circulation during long-term storage and large-scale on-site construction. Evenly dispersed to ensure the consistency of the coating hue.
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