CAS 7727-43-7 BaSO4 Barium Sulfate Paint 98% industrial grade
Liangjiang Brand-ultrafine barium sulfate is made through the
advanced domestic and international production process, with ultra
physical and chemical processing of selected barite. Thanks to the
advanced production technology, the particle size is strictly
controlled in a narrow range; the use of advanced drying
technology, the physical properties of the products are excellent,
of good dispersion and affinity in the application process with
other intermediary agent. Coz of higher whiteness and purity, and
no other mechanical impurities, our ultrafine barium sulfate is of
the top quality and performance in domestic products. It can absorb
X rays, gamma rays, and give the high material the density and
surface finish, which is widely used in paint, ink, paint, plastic,
rubber, chips, friction plate, ceramic, glass, electronics,
cosmetics, medicine, food and other fields.
◇ High purity, good dispersion, high temperature resistance, good
resistance to salt fog and weather resistance.
◇ Tiny particle sizes, improve the mechanical properties of the
◇ Low oil absorption, good liquidity.
◇ High whiteness, neutral color, color stability being help
preserved for a long time and reduce the amount of the pigment.
◇ High surface gloss and brightness.
◇ Less impurities, no harmful substances, ensuring the safety and
cleanliness of the surface coating products
Widely used in paints, inks, coatings, plastics, rubber, chips, a
friction plate, ceramics, glass, electronics, cosmetics, medicine,
food and other fields.
Superfine Barium Sulfate
Shanghai liangjiang titanium white products co.,ltd
Technical Data (standard:Q/VAIP-2010)
105 °C Volatiles %
Water solubles %
PH (aqueous suspension)
Oil absorption (based on different mesh) % g/100g
Mesh:325, 400, 600, 800, 1,250, 2,000, 3,000, 6,000, 8,000, 12,500
(customization available based on clients’ requirements)
25 kg n.w. per plastic woven bag; or 500 kg / 1,000 kg as clients’
Liangjiang Brand barium sulfate use high grade barium sulfate ore, characterized by the
characteristics of lower hardness, lower hardness, simple procedure
and lower cost.. Due to the industrial production of precipitated
barium sulfate of large size, high cost, and has a light shield, it
was formed in the coating of dry paint film, often poor
transparency, surface gloss is not good, bond is not secure. The
performance of the above problems can be solved by using ultra fine
barium sulfate.. Ultrafine barium sulfate refers to the average
particle size of a particle in the range of 10~100Lm, and the
particles of the following 100Lm are above 90%.. Its outstanding
features are: excellent optical performance, good dispersion, good
adsorption property. Ultrafine barium sulfate can also improve the
fluidity of coatings and prevent precipitation and other
1. paint, paint production of barium sulfate characteristics
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.
Good particle size distribution, good dispersion and anti sink,
adding high gloss latex paint does not affect the gloss, color
concentration, bright degree.
Stable chemical stability, good dispersion, oil absorption, with
the space effect, reduce the amount of pigment.
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
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
Barium sulfate as an extender pigment is widely used in paint,
plays a very important role to improve the coating's thickness,
abrasion resistance, water resistance, heat resistance, surface
hardness, resistance to impact etc.. In addition, barium sulfate in
the wavelength range of 300~400Lm have very high reflective, can
protect the film from photoaging, is an effective and inexpensive
inorganic white light stabilizer.
Using special technology is made of super fine barium sulfate has
many other similar products do not have the characteristics. The
acicular crystal structure make it become good flatting agent, and
can enhance the coating leveling. It can be used for self clean
coatings were used as reinforcing agent; due to the low amount of
the oil suction, high filler content, so can decrease the cost of
coating can be used for water paint, primer, intermediate coat, oil
paint. Use it to replace the water paint in 10% ~ 25% of titanium
dioxide. The results improve the whiteness, hiding power did not
1.1 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
Covering power g/㎡
From the table 1, we can see that the addition of ultra-fine barium
sulfate coating, the hiding power but increased, the basic
1.2 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.
1.3 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..
1.4 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.
1. The quality request of barium sulfate for the production of modified
transparent filler and masterbatch.
Has the ultra good dispersibility, glossiness and liquidity.
Good chemical stability
Can significantly improve product surface gloss and the tensile
strength, thermal conductivity, wear resistance, weather
resistance, reducing forming shrinkage, reduce the friction
coefficient and reduce the cost
Good weather resistance
In the ultraviolet wavelength range has a strong light reflection
ability, has the good sun resistance and weatherability
Good Processing performance
Can improve the rigidity of plastic products, hardness and wear
resistance.With high heat conductivity and rheological property,
which can effectively help shorten the cycle of plastic injection
Improve the mechanical properties
Effectively increase the crystallinity of thermoplastic polymer so
as to improve the strength and geometric stability of products,
reduce the molding shrinkage deformation.
Good cost performance
In the wide spectrum, with extremely high reflection coefficient,
so it is white powder, and is a neutral color.So you can keep the
paint the original brilliance and color.Most of the pigments are
easy to aggregate formation, this will weaken pigment tinting
strength.Use bright jiang card - barium sulfate can significantly
reduce the all kinds of pigment dispersion problems in plastic
preparation, increase the space steric effect pigment stability,
can effectively reduce the usage of various pigments, alternative
paint effect, such as titanium dioxide, color pigments and carbon
black, can effectively save the plastic pigments dosage, usually
can be reduced by 10%.
China is the world's largest producer of barium sulfate, about 40%
of the total world output, there are more than 100 brand belongs to
plastic special.Requirements for plastic with barium sulfate, fine
particle, good dispersion performance;Good heat resistance and
light resistance, heat and the plastic forming process was finished
product does not change color in sunlight exposure and use
process.Most of the plastic with barium sulfate particle size is
Adding barium sulfate in the plastic can improve the rigidity of
plastic products, hardness and wear resistance, aging resistance,
can help to shorten the cycle of plastic injection molding, also
can increase the crystallinity of thermoplastic polymer.Due to the
characteristics of plastic products, should be considered for its
chosen barium sulfate and other coatings, printing ink, paint, etc.
When choosing different, should be taken into account in accordance
with the technical requirements of plastic products, mainly to
choose ultra-fine barium sulfate or precipitated barium sulfate.
Masterbatch: helps to improve the dispersion of pigment, the phenomenon of
lower condensation or flocculation, high filling will not affect
Engineering/modified plastics, can improve the rigidity of plastic products, hardness and wear
resistance, aging resistance, can help to shorten the cycle of
plastic injection molding, also can increase the crystallinity of
General plastic: excellent hiding power, and can gain pigment with bright colors,
and make the product surface has the perfect color and high
glossiness, and has good mechanical properties and wear resistance.
Elastomer: high chemical purity, do not contain harmful substances, does not
affect the storage stability and aging resistance.
Rubber: can enhance product ageing resistance and weatherability, product
is not easy to aging become fragile, and can significantly improve
the surface roughness and hardness of the products.
Thermosetting body: inert, color stability, combined with other pigments can obtain
better gloss, mechanical properties and low wear resistance.
Thermoplastics: thermal conductivity and easy liquidity can make its less time on
injection molding, barium sulfate can be used as a nucleating
agent, to improve its strength.
3. The drilling mud weighting agent to the requirement of barium
some oil and gas well drilling, the general use of drilling mud,
clay proportion of 2.5 or so, the proportion of water is 1, so the
mud weight is low, sometimes the mud weight can't with underground
oil and gas pressure balance, has caused the blowout accident.Under
the condition of the underground pressure is higher, you need to
increase the mud weight, supplying the mud with barium sulfate is
an effective measure to increase the mud weight.Do drilling mud
with barium sulfate general fineness to achieve more than 325 mesh,
such as barium sulfate fineness is not prone to
precipitation.Drilling mud with barite for weighting is greater
than 4.2, BaSO4 content not less than 95%, less than 1% soluble
4. Liangjiang Brand ultrafine barium sulfate in other areas of
Adhesive: good rheological property, high filling and chemical resistance,
make barium sulfate is suitable for adhesive, unsaturated polyester
and polyurethane system, etc.
Printing ink: low wear resistance, high gloss and color stability, low
coherence, and combined with its easy liquidity makes barite powder
is suitable for the high quality of printing inks, barium sulfate
recommended for people with high optical activity of ink.Wood and
paint: ultrafine barium sulfate with low coherence, optical
characteristics of low dispersion and fine particles, especially
suitable for paint paint, varnish, paint, etc. According to the
barium sulfate has the chemical resistance and weatherability.
High fill paint and thick slurry coating: coating series can be
applied to all, for example, primer, high build coating all types,
such as its low specific surface area and particle size of division
and easy mobility, make ultra-fine barium sulfate in the machining
process has low wear resistance, ultra-fine barium sulfate
recommended for primer surface automatically, even when the high
fill also keep a good uniformity and smoothness.
Paint: ultrafine barium sulfate is better than that of most other filling
agent, especially in chemical resistance coating. Its inertia,
insoluble in water, acid, alkali and organic agents. Excellent
gloss and granular precision makes the paint in long-term exposure
can be protected. Ultrafine barium sulfate recommended for paint,
it can increase the surface hardness, color stability.
Road construction: rubber and asphalt mixture containing about 10% ultrafine barium
sulfate has been successfully used in the parking lot, is a kind of
durable paving material.At present, the heavy road construction
equipment tires have been partially filled with ultra-fine barium
sulfate, to increase the weight, to consolidate fill region.Prevent
ray: cement, mortar and concrete with X-ray absorption performance,
made with ultrafine barium sulfate barium cement, mortar and
concrete, to replace the metal lead plate shielding nuclear
reactors and prevent X ray to build the scientific research,
Glass: deoxidation agent, clarifying agent, flux, increase the stability
of optical glass, gloss, and strength.
5. Barium sulfate international fineness of CRT
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