Molybdenum powder used in the paper industry, can make paper have good brightness, strong structure, good for writing, coating uniformity, low friction, easy to humidity and easy to drying.
Due to the special properties, the application of molybdenum powder developed faster, has been widely used in industrial and agricultural areas, such as rubber, plastic, paper, paint, paint, ink, cable, pharmaceutical, fertilizer, feed, food, sugar, textiles, glass, ceramics, sanitary products, sealants, adhesives, pesticides and pesticide carrier and flue desulphurization, water treatment and other environmental aspects.
Molybdenum powder used in the paper industry, can make paper have good brightness, strong structure, good for writing, coating uniformity, low friction, easy to humidity and easy to drying. Since the world paper industry from the beginning of the 1980s was succeeded translate from an acidic process to alkaline process, make the use of filler has occurred revolutionary change. Molybdenum powder instead of wood pulp and other pigments can improve paper brightness, no permeability, porosity, bulk density and so on. The basic group processing is mainly for the production of fine printing and writing paper, for newsprint and some important paper, although use of acid-based production environment, but also can be used molybdenum powder. Currently in paper coating formulations, the molybdenum powder usage increased significantly, rising from 5%-10% to 30%.
Molybdenum powder is a very important filler material, especially in Europe, by weight, accounting for 60% of the mineral filler and reinforcing agent market. Molybdenum powder filler is mainly used plasticized PVC (cable, floor leather, etc., coarse whiting accounted for 10 %-30%), PVC (profiled bar, sheet, pipe, sheet accounts for 5%-20%, floor tile accounted for 40 %-80%), unsaturated polyester materials (automotive, electrical equipment and appliance industries molding and overall sheet molding), polypropylene (furniture, automotive, packaging, fibers, etc.) and polyethylene. Coarse whiting as a filler added to the plastic, not only play the role of capacity-increase, increment, reduce costs, evenly the fabric, also can improve the processing performance, wear resistance, tensile strength, impact strength, bending strength, breaking elongation and products thermal properties, etc. In addition, adding coarse whiting can improve the stability of plastics.
Produce paint is another important purpose of molybdenum powder. Molybdenum powder is important filler in the paint production, fineness and particle distribution determines the transparency of paint. Also, molybdenum powder has good weather resistance, abrasion resistant, low electrolyte content, PH stabilizing effect, can improve the corrosion resistance and paint rheology and other important characteristics. Molybdenum powder in water-based coating series is also very important, it can improve the performance of quick-drying, in the traffic paint has an important significance. In addition, molybdenum powder used in the paint powder can reduce the use amount of titanium dioxide, considered from economically it is advantageous. This will further stimulate the consumption growth of molybdenum powder in the paint, coatings.
Metal powder state molybdenum powder, used ammonium paramolybdate or calcined MoO3 as raw material, obtained by hydrogen reduction to get molybdenum powder. Molybdenum is an important inorganic mineral. From a geological point of view, molybdenum powder is a natural mineral of earth's crust. Molybdenum deposit has three types: limestone, chalk and marble. According to the relevant departments, the world carbonatites (including molybdenum powder and dolomite) distribution area is 5.34 million square kilometers, accounting for 4% of the Earth's land surface. Chinese carbonatites distribution area is 3.44 million square kilometers, accounting for 64% of the world.
Molybdenum powder has lightweight molybdenum powder (PCC) and molybdenum powder (GCC) two kinds. Molybdenum powder’s characteristics is that can artificial regulate color, particle size, surface characteristics, dispersion, rheology, thixotropic and crystal, etc., and molybdenum powder with high chemical purity, strong chemical inertness, good thermal stability, at 400 would not break down. In addition, molybdenum powder also has low oil absorption, low hardness, small abrasion value, non-toxic, odorless, tasteless, good dispersion and other advantages.
Source:http://www.mhcmp.com
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