Usage And Application Cope Of Silica Powder In Coatings

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Jun 1st, 2012
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In the coatings industry, particle size, whiteness, hardness, suspended, decentralized, low oil absorption, high electrical resistivity and other properties of silica powder can improve the corrosion resistance, abrasion resistance, insulation, high temperature performance of coatings. Silicon powder has good stability and plays an important role in the paint fill. In particular for exterior paint, SiO2 raw material plays an important role in weathering resistance.

With the growing prosperity of the construction market, the paint industry has been developing rapidly, the amount of silica fume grows, and at the same time put forward higher requirements for ultra-fine silica powder, modified. Microsilica has good external decorative effect. It has characteristics of erosion resistant and low cost.

1250 mesh silica powder in the application of special coatings, application of chemical precipitation technique surface coating doped SiO2 obtained composite conductive powder is widely used in electronics, aerospace, military and electromagnetic fields. Conductive coating of the conductive powder obtained, the volume resistivity of 12.6 ohms, the indicators have reached the national standard. By joining the silica powder flame retardant insulation coating to improve the thixotropy of the paint can, the paint coating is uniform, no cracks and has a short curing time, low cost. Of waste plastics as raw materials in the road marking paint, add the filler of silica powder, etc., low production costs, because of its mobility and leveling higher construction costs low. In the epoxy resin coatings of non-toxic epoxy toughening microsilica, and developed a toughened epoxy paint non-toxic anti-corrosion function to overcome the shortcomings and deficiencies of the existing paint brush at low temperatures and spraying.

With the continuous development of the coatings industry, metal powder exporter does continuous research in micro silica and other non-metallic mineral fillers, purification and modification technology, It is more important for them to carry out ultra-fine powder in these polymers applied research, thereby promoting the industrial and technological progress.

Adding silica fume mineral fillers in polymer-based compound can not only reduce the cost of polymer materials, but also improve the performance, dimensional and stability of the material. It gives the material some of the special physical and chemical properties, such as anti- pressure, shock, corrosion-resistant, flame retardant, insulation, etc. Natural quartz stone and quartz sands are important industrial mineral raw materials. They are widely used in glass, foundry, building materials, ceramics, chemicals, metallurgy, refractories, abrasives and fillers. The silica powder processing from quartz sand and gangue can be used as fillers of polymer materials. They have aroused more and more attention.Source:http://www.mhcmp.com

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