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Specification for Zinc Oxide 99.7% (French
Process)
#22511A |
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1.Appearance |
White powder/ pellet
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2.Assay (ZnO) |
99.7 min. |
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Specification for Zinc Oxide 99.5% (French
Process)
#22521A |
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1.Appearance |
White powder |
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2.Assay (ZnO) |
99.5 min. |
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Specification For Zinc Oxide 99.5% (American
Process)
#22531A |
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1.Appearance |
White powder |
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2.Assay (ZnO) |
99.5% min. |
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Specification for
Oxide
De
Zinc
Actif (BET 15-20 m2/gr)
#22541A |
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1.Appearance |
White powder |
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2.Assay (ZnO) |
93% |
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3.Surface Area (m2/g) |
15-20 m2/g |
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Specification for
Oxide
De
Zinc
Actif
(BET 25-35 m2/gr) #22551A |
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1.Appearance |
White powder |
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2.Assay (ZnO) |
90% |
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3.Surface Area (m2/g) |
25-35 m2/gr. |
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*** Special Surface area can be
provided on demand. |
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Specification for
Oxide
De
Zinc
Actif
(BET 30-50 m2/gr) #22561A |
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1.Appearance |
White powder |
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2.Assay
[(ZnO)x
(ZnCO3)y] |
85%
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3.Surface Area (m2/g) |
30-50 m2/gr. |
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*** Special Surface area can be
provided on demand. |
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Conductive Zinc Oxide Powder |
Target Properties
Product
Number |
Whiteness
(W) |
Mean Particle Size
(m ) |
Surface Area
(m2/g) |
Oil Absorption
(ml/100g) |
PH |
Resistivity
(cm ) |
|
LC-003 |
65~ 75 |
1.5~3 |
5~10 |
14~16 |
7.0~8.5 |
10~30 |
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Wet Process
Oxide
De
Zinc
Actif |
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The most important usage for zinc oxide is
as an activator in rubber industry. However
the inorganic Zinc Oxide is not so easily to
disperse in organic rubber polymer. How to
increase the dispersion on rubber is the
most important thing for Zinc Oxide
manufactory.
The Wet Process Zinc Oxide is one way we
consider. In this process, we can make more
fine particle size zinc oxide to increase
the surface area. The higher surface area of
zinc oxide, the easier to disperse in
rubber.
Here is the comparison of
Oxide
De
Zinc
Actif
with French Process Zinc Oxide.
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Oxide De Zinc
Actif |
French Process Zinc Oxide |
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True specific gravity |
4.8 |
5.27 |
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Apparent density |
0.502 |
0.87 |
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Surface Area(m2/g) |
45 |
3-5 |
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Lead (Pb)% |
0.0005 |
~0.05 |
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pH |
7.5-10.0 |
7.0 |
As compared with French type zinc oxide,
Oxide De Zinc Actif is :
-
Specific gravity is smaller.
-
The surface area is much higher, so the
crossing linking density is higher.
-
Harmful impurities are less.
-
It contains very low lead and create no
blacken, the color of vulcanized rubber is
much clear.
-
Due to its micro particle size, it is
superior in dispersion shortening of
vulcanization cycle resulting in saving of
machine time and power consumption.
ADVANTAGE FOR OXIDE DE ZINC ACTIF
-
Oxide De Zinc Actif
improves the degree of cross-linking and
thus improve the modulus, tear resistance
and abrasion resistance. It also improves
aging properties and gives good protection
against flex cracking.
-
With their extremely fine particles,
Oxide De Zinc Actif
easily disperses thereby facilitating the
process of latex compounds, thus behaving
as a good activator e.g. in teats, gloves,
balloons and similar articles, it reduces
pin holes in latex products and also
provide shine / transparency on finished
products.
-
Use of
Oxide De Zinc Actif
results in good dimensional stability to
extruded profiles, tubing and open air
cured articles in general, the effect
particularly pronounced in EPDM compounds.
-
Generally, active Zinc oxide use about
20-40% lesser than French Process ZnO
gives desired results. With fine tuning of
formulation settings, considerable savings
can accrue on account of lower inputs such
as: machine time, power consumption,
accelerators and blowing agents etc..., in
many formulations, THUS GIVING ECONOMY AND
BETTER PROCESS CONTROLS IN ULTIMATE
ANALYSIS.
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