The,applications,molybdenum,po business, insurance The applications of molybdenum powder in the paper industry
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Since the world paper industry from the beginning of the1980s was succeeded by from an acidic process to alkaline process change, makethe use of filler has occurred a revolutionary change. Molybdenum powderinstead of wood pulp and other pigments can improve the papers brightness, nopermeability, porosity, bulk density, etc. basic group processing is mainly forthe production of fine printing and writing paper, to newsprint and someimportant papers, although produce in the acid-based environment, but also canbe used molybdenum powder. Currently in paper coating formulations, themolybdenum powder usage increased significantly, increased from 5%-10 % to 30%. TheWorlds papermaking process from acidic shift in the alkaline was culminated inmid-1990s, calculated in paper production capacity, in 1997 the United Statesalkaline and neutral papermaking process accounted for 80% of total papermakingproduction capacity. Western Europe accountedfor 65%. To 2000, the United States in addition to a small amount of specialpaper products, 95% of the production capacity is alkaline or neutral, Europealso up to 80%. This shift gives molybdenum powder a huge market. From theinformation that metal powder exportersupplied, we know that currentlythe paper coating grade molybdenum powder produced by China cannot meet theproduction demands, the large gap needs to import to supply. Molybdenumpowder is a very important filler material, especially in Europe,by weight, it accounts for 60% of the mineral filler and reinforcing agentmarket. The main used of molybdenum powder filler is plasticized PVC (cable,floor leather, etc., coarse whiting accounted for 10 % to 30%), rigid polyvinylchloride (doors, profiles, sheet, pipe, sheet accounts for 5% to 20%, floortile 40% ~ 80%), unsaturated polyester (automobiles, appliances and applianceindustries sheet molded and integrally molded), polypropylene (furniture,automotive, packaging, fibers, etc.) and polyethylene. Coarsewhiting as a filler added to the plastic, not only plays the role ofcompatibilize, increment, reduce costs, make the fabric evenly, but alsoimprove the processing performance, wear resistance, tensile strength, impactstrength, bending strength, breaking elongation and thermal properties ofproducts, etc. In addition, adding coarse whiting can improve the stability ofplastics. According to reports, the coarse whiting is nowadays widely used inpolyvinyl chloride, polyethylene, polypropylene and various unsaturated resin,of which PVC products are the earliest and largest market of molybdenum powder.For example, in soft polyethylene wire, polyvinyl chloride, polyvinyl chloridetiles, calcium plastic material, accounts for 20%-50%, in polyethylene, polypropylenepackaging material accounts for 10%-30%, in the automotive parts, ceilingaccounts for 20%-60%. Productionof paint is another vital purpose of molybdenum powder. Molybdenum powder is the important filler in the paint production, fineness andparticle distribution determines the transparency of the paint. In addition,molybdenum powder has good weather resistance, have the importantcharacteristics of abrasion resistant, low electrolyte content, PH stabilizingeffect, can improve the corrosion resistance and paint rheology, etc.Molybdenum powder in water-based coating series is also very important, it canimprove the performance of quick-drying, in the road crossed has an importantsignificance. Whats more, use molybdenum powder in the paint can reduce theamount of titanium dioxide, it is advantageous considered economically. Thiswill further stimulate the molybdenum powder usage grows in the paint, paintconsumption. ArticleSource:http://www.mhcmp.com
The,applications,molybdenum,po