CAS No 7727-43-7 Barium Sulfate Paint Powder For Ink / Plastic Industry

CAS No 7727-43-7 barium sulfate paint powder for ink and plastic industry

Specifications:

1. The fine particles of “Liangjiang brand”micronized barium sulfate have a good scattering and hiding capability, and as a carrier of pigment, it can make the pigment highly decentralized and provide an even color; high whiteness can make the coating clearer and purer; special crystal structure and high refractive index can make the color rich and full.

2. “Liangjiang brand”micronized barium sulfate has a good chemical inertness, which renders it a better compatibility and makes it easy to organic composite with other materials and enhance the bonding; the suspension system is very stable and never produce flocculation or precipitation.

3. The surface of “Liangjiang brand”micronized barium sulfate can make the coating film bond with the substrate more strongly; uniform submicron fine particles can make the coating film flatter and smoother and then more robust and durable.

Applications:

1. paint, paint production of barium sulfate characteristics requirements

Powder Coatings:High whiteness, easy dispersion, black spots, and resin have good affinity, improve the powder rate, can significantly improve the surface gloss, leveling, hardness, impact resistance, adhesion.

anticorrosive paint:Stable chemical stability, good dispersion, oil absorption, with the space effect, reduce the amount of pigment.

Plastics paints:Super fine grain size and grain size distribution, good dispersion and anti sink, add a small amount of plastic paint, increase the film hardness, add paint does not affect the gloss, color density, brightness, effectively reducing the use of resin and pigment, unable to add traditional packing of high-grade paint add add the product has excellent effect.

Paper paints :Introduced in can increase the gloss, liquidity, such as art paper in white and transparent colored paper. Part of titanium dioxide available double barium sulfate instead of without losing its luster.

Emulsion coatings: Good particle size distribution, good dispersion and anti sink, adding high gloss latex paint does not affect the gloss, color concentration, bright degree.

2. Technical Data (standard:Q/VAIP1-2010)

Packing:

25 kg n.w. per plastic woven bag; or 500 kg / 1,000 kg as clients’ requirements.

Transportation and Storage Safety:

This product is safe and harmless, white powder. To prevent the moisture in the process of transportation and storage, the goods is suggested to be placed in the cool, ventilated, dry place.

Avoid inhaling dust when handling, wash with soap and water if sticked and reference material safety technical data.

1. comparison of film whiteness and hiding power

The production formula (with superfine barium sulfate instead of 15% titanium dioxide) and the original production formula under the same conditions of the plate test data as shown in Table 1

Effect of barium sulfate on the whiteness of coatings

From the table 1, we can see that the addition of ultra-fine barium sulfate coating, the hiding power but increased, the basic unchanged whiteness.

2. film artificial aging test

Put the different formulations of spray paint brush on the cement board, in the sunlight aging machine for artificial aging test. As a result, original production formula discoloration time for 580 hours, existing production formula discoloration time is 12 hours, after adding superfine barium sulfate the weather resistance of paint film can be significantly improved.

3. coating at room temperature results

Due to the small particle size of ultrafine barium sulfate, the agglomerated morphology also determines the density of not less than the general barium sulfate, so it overcomes the ordinary barium sulfate precipitation, easy lamination defects. The latex paint test samples placed a year without obvious stratification, settlement and the stability is good.

In addition, the film in the film in the water resistance, wet scrub, anti pollution, etc..

4. to 1 ~ 8 Lm barium sulfate shattering particle size, can replace part of titanium dioxide when applied in latex paint, whiteness And hiding power did not decline, although after smashing the barium sulfate is fine, but it is still on the agglomeration of the agglomeration of medium sized particles. Because of precipitated barium sulfate in formation, the crystal size is between 0.2 ~ 0.8 Lm, the agglomeration of particles clearance is too small, so that scattered resin could not enter into the agglomeration in the body, the results when the paint film after drying, these small air gap being preserved, in the form of air, thus improve the refraction between the various components. In this film, the material's refractive index is as follows: 2.76, titanium white polymer is 1.55, the water is 1.33, 1.0 air in the wet film And dry film, mainly from the following several refractive index difference determines the size of the covering power: titanium white - polymer = 2.76-1.55 = 1.55, titanium white - water = 2.76-1.33 = 1.33, titanium white - packing = 1.11, titanium white - air = 1.76. Thus it can be seen that as a result of the existence of ultrafine barium sulfate powder, after the coating film, in addition to other refractive index difference, And the difference of the titanium white And the water's refractive index. After film into a dry film, due to the evaporation, the micro air bubble in the paint film, And produced between titanium dioxide and air refractive index difference, objectively increased the scattering ability of titanium dioxide, thereby increasing the hiding power, so superfine barium sulfate can replace part of titanium dioxide, and hiding power is not decreased.

5. The quality request of barium sulfate for the production of modified plastics, transparent filler and masterbatch.

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