Nano silica powder is refined through innovative processes. It has a stable particle size distribution and a large surface area. The particles are evenly distributed. This silica micro powder, spherical in shape, achieves a sphericity rate of around 95%. It exhibits excellent chemical resistance, weather resistance, insulation, reinforcement, and thermal stability.
1. What is Nano-Silica Micro Powder?
This is a spherical silica powder with a spheroidization rate of about 95%. It has excellent chemical resistance, weather resistance, insulation, reinforcement and thermal stability. SiO2 content exceeds 99.9% and whiteness ranges from 95% to 98%. Its density is 2.2, Mohs hardness is 6.0, and it has a particle size ranging from 0.2μm to 0.5μm.Its particle size is reasonably controllable and its appearance is white powder.
2. Characteristics of Nano-Silica Micro Powder
2.1 High Purity
Innovative purification technology ensures a purity range of 99.9% to 99.9999%. Meets high purity requirements for a variety of applications.
2.2 Excellent Sphericity
The powder exhibits high sphericity, high sphericity ratio and smooth surface. This results in a dense sphere with a smaller surface area.
2.3 Large Surface Area
The micro powder possesses excellent thixotropicity, reinforcing, and thickening effects. Surface modification can enhance its hydrophobicity and lipophilicity. It is suitable for coatings, glass surfaces and electronic packaging.
2.4 Small Particle Size
Its controllable nanoparticles range from 0.2μm to 10μm. It has uniform distribution, large surface area and high surface activity.
2.5 High Sphericity Technology
Mature and reliable sphericity technology, with a sphericity of more than 95%. Shape is regular and surface is smooth.
2.6 Low Radiation:
Uranium content is less than 0.1ppb; high-temperature resistance up to 1500℃ and above.
3. Parameters
- Appearance: White powder
- Microstructure: Spherical particles
- Sphericity Rate: Greater than 95%, high sphericity, uniform and regular, smooth surface
- Silicon Dioxide Content (%): 99.9%—99.9999%
- Average Particle Size: 300-1000nm controllable
- Low Radiation: Uranium content < 0.1ppb
- modified: Various silane coupling agents can be used to modify the surface of spherical silica powder, which can improve fluidity, dispersion and compatibility with the system.
4. Product Features
- The company strictly controls raw materials and processing. Ensure high purity, low metal content and no radioactive elements.
- Nano-sized particles with uniform distribution and good dispersibility.
- Good sphericity, high sphericity rate, smooth surface with no pores, and good fluidity.
5. Applications
- Lipstick, powder, eyeshadow, BB cream, foundation, etc., in cosmetic additives.
- Filling material for advanced ceramics, nano-ceramics, and composite ceramic substrates.
- Powder coatings.
- Absorbing materials.
- Plastic film anti-adhesive materials.
- Filler for precision injection molding.
- Raw material for ceramic sintered products.
- Polishing powder.
- Wax filler.
- Dental materials.
- It can be used for rubber modification.
- Polymers: It can increase the thermal stability and aging resistance of polymers.
- We add a small amount of nano-SiO2 to traditional coatings. It can effectively improve its suspension stability, thixotropy, aging resistance, and smoothness.
Nanospherical silica powder is an important functional inorganic material. It has a large surface area, developed pores, and high surface activity. Its unique structure increases the material’s physical and chemical properties.
6. Analysis of the Application of Nano-Silica Micro Powder in the Cosmetics Field
As we all know, for cosmetics, strong UV shielding ability is crucial. Short-wave ultraviolet (UVB) damage and long-wave ultraviolet (UVA) exposure should be protected against. UV protection essentially involves two aspects: UV absorption and UV reflection.
In traditional sunscreen products, organic compounds are often used as UV absorbers. People use it to protect their skin from UV rays. Sunscreen raises concerns about skin cancer and chemical allergies. Nanosilica powder is an inorganic ingredient that mixes well with other cosmetic ingredients.. It is non-toxic, odorless and does not cause associated problems. It has strong UV reflection ability and excellent stability, and does not decompose or discolor under UV irradiation. and does not react chemically with other ingredients in the formula. These outstanding features have laid a solid foundation for the upgrading of sunscreen cosmetics.
6.1 Silica ensures even pigment distribution in the brightener and prevents pigment settling. It provides rheological properties to the final product, improving spreadability. If the solvent system’s refractive index matches silica (1.48), a transparent nail polish formula, like base and topcoats, can be created. Otherwise, at higher concentrations, it acts as an opacifier, diminishing the desired gloss. Silica has both hydrophilic and hydrophobic properties and can be used in nail polish. The recommended concentration range is 0.25% to 4.0%.
6.2 Lipstick: Silica ensures even distribution of lipstick pigments. It improves the product’s temperature resistance and prevents the lipstick from softening at high temperatures. It also ensures that the color is long-lasting and does not fade.
6.3 Eye care: Many eye and facial makeup products can use silica to enhance stability. Silica is a highly effective anti-caking and free-flowing agent. It can improve the storage stability and dispersion of powder products. It allows the use of pigments in cosmetic products.
