Overview on the application of transparent powder filler

Release time:

2024-01-29 09:36


Overview on the application of transparent powder filler


The origin of transparent powder

Transparent powder is a common name in the coating industry, because of its excellent transparency, good appearance and better filling, in order to highlight its main features for the first time and the first impression, so take the common name "transparent powder". In fact, transparent powder is not a single powder, it is in addition to the main ingredients of natural mineral rock, but also add special synthetic accessories mixed grinding modified modulation. Is a compound silicate, belongs to the inorganic salt. In addition, it contains some sulfate and impurities. Transparent powder is a new type of functional transparent filling material with high transparency, good hardness, excellent hue, high gloss, good collapse resistance and less dust during use. Widely used in furniture paint, decoration paint, adhesives, water-based coatings, paint inks and many plastic products.

Classification of Transparent Powder

  1.    Transparent powder containing crystal water

The molecular structure of the product contains chemical structure of water, its volatile matter is generally 15%-20%, the amount of volatile matter depends on the crystal rock itself, but also depends on the control of the production process. In general, the high volatile varieties of its relatively high transparency, often let many technicians worry that its volatile will directly affect the use and effect of coatings.

In addition, the transparent powder containing crystal water is easy to absorb moisture and produce coagulation phenomenon if it is not handled properly in the use process. The normal dispersion effect can only be achieved by means of grinding pressure. On the other hand, although the transparent powder containing crystal water has good transparency, it also has a certain blue light phenomenon like fumed silica. If the construction is too thick or used at one time on some dark substrates, it is easy to cause fog and whitening by the blue light phenomenon. This is also a phenomenon that some enterprise technicians do not want to see, so it is also subject to some limitations in use.

  2.    Transparent powder without crystal water

Ammi micro nano anhydrous transparent powder belongs to aluminum silicate crystal, the content of effective components reaches more than 99.5, by the natural transparent ore through strict beneficiation, cleaning, grinding, flotation, purification, modification and special drying in addition to water and other multi-channel processing technology. Most of its whiteness is lower than that of varieties containing crystal water, and its transparency is excellent, especially in polyurethane system, its transparency is better, and it has the characteristics of high temperature resistance, weather resistance, acid and alkali resistance, and high insulation.

It is characterized by the fact that the finished coating does not produce blue light, good recoatability, and overcomes the disadvantages of varieties containing crystal water. Although its hue and sanding are slightly worse than varieties containing crystal water, its stability and storage are better. Waterless transparent powder hardness is relatively high, which can improve the product wear resistance, scratch resistance, weather resistance, etc., so it is widely used!

Characteristics of transparent powder

  1.    High transparency:

Because the refractive index of transparent powder itself is very close to that of most synthetic resins, the high filling amount of transparent powder basically does not affect the transparency of the finished product; the oil is good, and the paints, coatings and other products made of transparent powder have better opening effect than traditional transparent filling materials such as talcum powder.

  2.    High hardness and gloss:

Because of its low oil absorption rate and high density, it can improve the surface gloss, hardness and abrasion resistance of the product. At the same time, it also partially affects the sanding performance of the product.

  3.    Low oil absorption:

The oil absorption is low, and the addition amount will not significantly increase the viscosity of the product, so it can be made into a high solid and low viscosity coating. Compared with other products with the same oil absorption, its sedimentation is obviously better than other products, which can improve the appearance of the product.

  4.    good collapse resistance:

Waterless transparent powder has good filling property, slightly higher hardness than talcum powder, small deformation and shrinkage, and has high filling and anti-collapse functions in products such as paint, even for coarse wood grain substrates.

  5.    Good dispersion:

Uniform particle size, good fineness, good wettability and compatibility for various resins, without sanding or roller grinding, ordinary high-speed dispersing machine high-speed (1200-1500r/min) dispersion for about 10-18 minutes can reach the required fineness.

  6.    Strong stability:

Ammi micro nano water-free transparent powder is an inorganic non-metallic material, which has the advantages of strong acid and alkali corrosion resistance, high temperature resistance and strong flame retardancy. It will not react with various resins, additives and solvents, and has good storage stability. Due to the special treatment, there is very little dust in the process of use, which is more environmentally friendly, more hygienic and safer than the traditional transparent filling material. Can be applied to a variety of fire, flame retardant coatings.

About, transparent, filled, with, product, transparency, crystal water, paint, hardness, volatile

Different applications and specifications of washed kaolin and calcined kaolin


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Source Lei gas barium sulfate ten uses


Barium sulfate is based on barite as the main raw material, through beneficiation, ore washing, crushing and other processes. Barium sulfate has a hardness of 3~3.5 (Mohs) and a specific gravity of 4.3~4.7. It has the characteristics of high specific gravity, low hardness and brittleness. Barite is almost insoluble in water, ethanol and acid, soluble in hot concentrated sulfuric acid. With the development of some high-performance barium sulfate products, the application field of barium sulfate is constantly expanding.