Ultrafine nano silicon dioxide silica agents
Do you want to know what it is?
Nano silica is a kind of inorganic chemical materials, commonly known as white carbon black. Because it is ultrafine nano scale, size range in 1~100nm, and therefore has many unique properties, such as with UV optical properties, can improve the anti-aging, strength and chemical properties of other materials. Very wide use. Nano silica is amorphous white powder, non-toxic, tasteless, non polluting, micro structure is spherical, a quasi particle structure of floc and mesh, the molecular formula and structure of SiO2, insoluble in water.
Do you want to know the application of it?
(1) electronic packaging materials
The surface activity of nano silica treated fully dispersed in silicone modified epoxy resin encapsulation adhesive matrix, can greatly shorten the curing time of packaging materials (2.0-2.5h), and the curing temperature can be reduced to room temperature, the device improves the sealing performance, increase the service life of the device.
(2) resin composites
The nano silica particles can be fully and uniformly dispersed in the resin material, and the properties of the resin matrix can be comprehensively improved. Include: A improve strength and elongation; B improve wear resistance and improve material surface finish; C anti-aging performance.
(3) plastic
The use of nano silica light, small size, can make the plastic becomes more dense, the addition of SiO2 in the polystyrene film, can enhance its transparency, strength, toughness, water resistance and anti ageing performance. The ordinary plastic polypropylene was modified by nano silica, the main technical indexes (water absorption, insulation resistance, compression deformation, residual flexural strength etc.) have reached or exceeded the performance of engineering plastics nylon 6.
(4) paint
Can improve the suspension stability of coatings, thixotropy, poor weather resistance, scrub resistance is poor, make the film combined with wall strength increases, the film hardness increased, the surface self-cleaning ability was also improved.
(5) rubber
Known as the silica silica, adding a small amount of nano Si02 in ordinary rubber, product strength, wear resistance and anti ageing properties have reached or exceeded the high-grade rubber products, and can keep the color unchanged for a long time. Three color nano modified EPDM waterproofing membrane, its wear resistance, tensile strength, fracture resistance, anti-aging properties are improved obviously, and the bright color, the color effect was excellent.
(6), Yan (dyed) material
By adding nano Si02 on organic pigments (dyeing) material surface modification, not only make the Yan (dye) material anti aging performance is greatly improved, and the brightness, hue and saturation index were also improved to a certain extent, greatly expanded the organic pigments (dyeing) grade and range of application materials.
(7) ceramics
Nano Si02 instead of nano A1203 can not only play the role of nanoparticles, but also the second phase of particles, can improve the strength, toughness and hardness and elastic modulus of ceramic materials,.
Using nano Si02 to composite ceramic substrate, improve the substrate compactness, toughness and finish, greatly reduce the sintering temperature.
Do you want to know more about it?
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