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Application of fumed silica in various industries Ⅰ

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1、Electronic packaging materials   
Organic electroluminescent devices (OELD) is a newly developed a new type of flat panel display device, with a low turn-on and drive voltage, and can be driven by DC voltage, can be matched with the scale of integrated circuits, easy to realize the full-color, light-emitting brightness (>105cd/m2), etc., but the service life of the OELD device can not meet the requirements of the application, which needs to be resolved one of the technical difficulties Is the device packaging materials and packaging technology.
At present, foreign countries (Japan, the United States, Europe, etc.) widely used silicone-modified epoxy resin, the surface activation treatment of gas-phase silica fully dispersed in silicone-modified epoxy resin encapsulation adhesive matrix, which can significantly shorten the encapsulation material curing time (2.0-2.5h), and the curing temperature can be lowered to room temperature, so that the sealing performance of OELD devices has been significantly improved to increase the service life of OELD devices. The service life of OELD device can be increased.
2、Resin composite material   
Resin-based composites have lightweight, high strength, corrosion resistance and other characteristics, but in recent years the materials industry and the pillar industries of the national economy on the use of resin-based materials performance requirements are increasingly high, how to synthesize high-performance resin-based composites, has become an important issue of the current materials industry and the business community.
The introduction of gas-phase silica provides a new opportunity for the synthesis of resin matrix composites and a new way for the modification of traditional resin matrix materials. As long as the gas-phase silica particles can be sufficiently and evenly dispersed into the resin material, the purpose of comprehensively improving the properties of resin matrix materials can be fully achieved.
3、Plastics     
The use of fumed silica translucent, small particle size, can make the plastic become more dense, in the polystyrene plastic film after adding fumed silica, not only to improve its transparency, strength, toughness, and waterproof performance and aging resistance is also significantly improved.
By adding a small amount of fumed silica to ordinary plastic PVC, the hardness, finish and anti-aging properties of the plastic steel doors and windows produced are greatly improved. The use of gas-phase silica modification of ordinary plastics polypropylene, the main technical indicators have reached or exceeded the performance indicators of engineering plastics nylon 6, polypropylene railway fittings to replace the use of nylon 6, the cost of the product has dropped significantly, and its economic and social benefits are very significant.
4, paint   
China is a coating production and consumption of large countries, but the current domestic coatings generally have performance deficiencies, such as poor suspension stability, poor thixotropy, poor weathering, poor scrub resistance, resulting in the need to import a large number of high-quality coatings each year.
The application of fumed silica in coatings has changed the shortcomings of previous products, and its main performance indicators have been tested, except for the constant ratio, the rest are greatly improved, in addition, the combined strength of the coating film and the wall has been greatly improved, the hardness of the coating film has been significantly increased, and the self-cleaning ability of the surface has also been improved. 


Room termperature curing polysilazane, pls check IOTA 9150, IOTA 9150A
High termperature curing polysilazane, pls check IOTA 9108, IOTA 9118.     

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