Nano silica has a wide range of uses, mainly in the following fields:

(1) Electronic packaging materials

Fully disperse the surface-actively treated nano-silica in the silicone modified epoxy resin encapsulant matrix, which can greatly shorten the curing time of the packaging material (2.0-2.5h), and the curing temperature can be reduced to room temperature , The sealing performance of the device is significantly improved, and the service life of the device is increased.

(2) Resin composite materials

Fully and uniformly dispersing nano-silica particles into the resin material can comprehensively improve the performance of the resin-based material. Including: A to improve strength and elongation; B to improve wear resistance and improve the surface finish of the material; C anti-aging performance.

(3) Plastic

The use of nano-silica for light transmission and small particle size can make the plastic more dense. After adding silica to the polystyrene plastic film, it can improve its transparency, strength, toughness, waterproof performance and anti-aging performance. Use nano-silica to modify ordinary plastic polypropylene, so that its main technical indicators (water absorption, insulation resistance, compression residual deformation, flexural strength, etc.) all meet or exceed the performance indicators of engineering plastic nylon 6.

(4) Paint

It can improve the coating's poor suspension stability, poor thixotropy, poor weather resistance, poor scrubbing resistance, etc., so that the bonding strength of the coating film and the wall is greatly improved, the hardness of the coating film is increased, and the surface self-cleaning ability is also improved.

(5) Rubber

Silica is known as white carbon black. After adding a small amount of nano-SiO2 to ordinary rubber, the strength, wear resistance and aging resistance of the product reach or exceed high-end rubber products, and the color can remain unchanged for a long time. Nano-modified color EPDM waterproofing membrane, its abrasion resistance, tensile strength, flexural resistance, anti-aging properties are all improved significantly, and the color is bright, and the color retention effect is excellent.

(6) Yan (dye) material

The surface modification of the organic pigment (dye) by adding nano-Si02 not only greatly improves the anti-aging performance of the pigment (dye), but also improves the brightness, hue and saturation to a certain extent, greatly expanding The grade and application range of organic pigments (dye) materials have been improved.

(7) Ceramics

Using nano-SiO2 instead of nano-A1203 can not only play the role of nano-particles, but also the second-phase particles, which can improve the strength, toughness, hardness and elastic modulus of ceramic materials. The use of nano-SiO2 to composite the ceramic substrate improves the compactness, toughness and smoothness of the substrate, and greatly reduces the sintering temperature.

(8) Sealant, adhesive

The addition of nano SiO2 coats a layer of organic material on its surface to form a network structure and form a silica structure, which makes it hydrophobic, which can inhibit colloidal flow, speed up the curing speed, improve the bonding effect, and increase the sealing of the product. And impermeability.

(9) FRP products

Nano particles and organic polymers produce grafting and bonding, which increase the toughness of the material, increase the tensile strength and impact strength, and greatly improve the heat resistance.

(10) Drug carrier

The use of nano-SiO2 as a carrier can achieve a good slow-release effect.

(11) Cosmetics

Nano-Si02 is an inorganic component, easy to be compatible with other components of cosmetics, non-toxic, odorless, self-white, strong UV reflection ability, good stability, does not decompose after being irradiated by ultraviolet rays, does not change color, and will not be combined with other components in the formula. The separation of chemical reactions has laid a good foundation for the upgrading of sunscreen cosmetics.

(12) Antibacterial materials

Utilizing the huge specific surface area, surface multi-mesoporous structure, super adsorption capacity and unique physical and chemical properties of nano-SiO2, functional ions such as silver ions are uniformly designed into the mesopores on the surface of nano-SiOX to develop high-efficiency, long-lasting, and durable The high-temperature, broad-spectrum antibacterial nano-antibacterial powder can be widely used in bills, medical and health, chemical building materials, household appliances, functional fibers, plastic products and other industries.