MIO

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Micaceous Iron oxide (MIO) is a crystalline form of iron oxide that differs from Red, Yellow, and Brown variety of iron oxides. Its crystals are very easily fractured into thin flakes & looks like mica. This similarity gives rise to the term MICACEOUS and it is normally dark grey to black in colour. All MIO ores are generally occurred in Lamellar formation, along with Non Lamellar Hematite cavities.

SYNONYMS: Micaceous hematite, Natural lamellar hematite, Specular iron oxide, MIO, Micaceous iron oxide, Natural specular hematite ore

Barrier effect

When a MIO based paint is applied to a surface, the flaky pigment particles orientate themselves in multiple layers roughly parallel to the substrate in such a way that interleaving and overlapping take place. This barrier effect will reduce the diffusion of moisture and polluants such as NaCl and SO2 through the medium, thus decreasing the chances of corrosion and blistering.

UV shielding effect

MIO particles are impervious to UV radiation and therefore protect organic binders from early degradation by light and UV rays. This is due to the coherent barrier and to the drastic MIO absorption in the ultraviolet region.

Film reinforcement

Paint film reinforcement, which reduces film distortion, is due to the high aspect ratio of MIO and its preferable orientation parallel to the substrate. Consequently the film shows high mechanical properties and an improved cracking resistance.

Adhesion improvement

On galvanized surface, it has been shown that MIO enhances the adhesion of paint layers. Even allows one coat system to be efficient principally for high-voltage transmission towers. Moreover this pigment helps to obtain better recoatability, especially for epoxy coatings and thus reduces expensive and not very compliant surface treatment.

Thermal expansion

Major content of MIO is Fe2O3, which has a similar coefficient of thermal expansion to the metal substrate and consequently reduces flexing and cracking of the paint applied to the metal substrate.

Low soluble salts content

Soluble salts can form electrolytes in the paint system, and forming galvanic cells leads to film breakdown. MO is extracted in deposits, which have a particularly low soluble salts content. Moreover its airclassification process removes most of the amorphous superfine particles, which lead to high soluble salt levels.

Food contact

Since MIO is free of toxic ingredients, it is extremely useful for nonpoisonous finishes applied to food processing plants such as sugar refineries, dairy plants, breweries and distilleries.

Coloration 

MIO is grey with metallic sheen and is easily mixed with a large range range of pigments to obtain interesting dark shades (brown, red, grey…). TiO2 can be added to lighten the shade. Once again, by removing most of the amorphous super-fine particles, which are natural red oxide, air classification techniques help to ensure greater batch color control and consistency in batch-to-batch coloration.

Więcej informacji:

http://www.luh.de/eisenglimmer/?L=1

http://lamoxindustries.com/products.html

http://www.reade.com/products/35-oxides-metallic-powders/563-micaceous-hematite-natural-lamellar-hematite-specular-iron-oxide-mio-micaceous-iron-oxide-natural-specular-hematite-ore

http://www.cmmp-france.com/ironorgb.html

http://www.alibaba.com/showroom/micaceous-iron-oxide.html

http://www.onwardchem.com/pdf/CMMP,France/TDS/Ironor-P-PS-S.pdf

http://www.keysermackay.com/france/markets-france/plastics/1257-kaerntner-montanindustrie