nano-scale ultrafine spherical silicon micropowder for cosmetics

nano-scale ultrafine spherical silicon micropowder for cosmetics:

Cosmetic-grade nano-spherical silicon micropowder is produced through an innovative process, yielding a stable particle size distribution with narrow range and exceptional surface area. The spherical particles function as suspending and redispersing agents in liquid formulations, while exhibiting thickening and thixotropic properties. In powdered products like powder compact, they enhance flowability and storage stability to prevent clumping. Their high specific surface area also enables adsorption and carrier functions, effectively adsorbing gases, liquids, and solids. When applied to products such as lipsticks, powder compact, and foundation cream, these micropowders demonstrate: excellent hydrophobicity for enhanced makeup longevity; skin-friendly compatibility; superior dispersibility and oil-phase solubility; improved powder spreading properties; and a moisturizing, translucent, and refreshing sensation on the skin.

①　The spherical silica micro-powder, produced with world-class innovative and advanced techniques, exhibits the following unique properties when used in cosmetics such as lipsticks, powder compact, and foundation creams:

1: The smaller average particle size ensures its excellent smoothness;

　　2: The larger specific volume makes the cosmetic formulation more economical;

　　3. The narrow particle size distribution determines its good flowability and tactile sensation.

4: The larger specific surface area enables it to effectively absorb sweat, fragrances, nutrients, and protective chemicals.

②　It can be used to thicken and thixotropic in liquid, to suspend and re-disperse in liquid phase, to improve the flowability and storage stability of powder products such as powder cake, and to prevent caking. Because of its high specific surface area, it can also be used as an adsorbent and carrier to adsorb gas, liquid and solid substances.

It is used in lipstick, powder compact, foundation cream and other formulations with the following characteristics:

1. It has good dispersibility and solubility in oil phase.

2. Good skin affinity;

3. Good hydrophobicity, which can enhance the durability of makeup.

2. Characteristics of nano-scale high-purity spherical silicon powder for cosmetics:

1. High Purity: Our innovative purification technology ensures products achieve 99.9% purity across various applications, meeting stringent requirements for silicon micro-powder in high-tech fields.

2. Nanoscale controllable particle size technology: Meeting the technical requirements of product application departments for particle miniaturization and density adjustment, with controllable particle sizes ranging from 0.2μm to 10μm.

3. Advanced spheroidization technology: The mature, stable, and reliable spheroidization process elevates the spherical ratio of silicon micro-powder to over 95%, yielding uniformly shaped particles with smooth surfaces.

4. Low radiation: Uranium content <0.5ppb.

3. Application Scope of Nano-scale High-purity Spherical Silicon Micro-powder for Cosmetics:

u Cosmetic additives such as lipstick, powder compact, eyeshadow, BB cream, and foundation

u Copper-clad laminates, electronic adhesives, potting compounds, functional plastics, rubber, epoxy resin castings, LED encapsulation materials, etc.

u Filler for semiconductor tip forming

u high performance ceramics

u powder coating

u absorbing material

u Plastic film anti-adhesion material

u Filler for precision injection molding

u Raw materials for ceramic sintered products

u polishing powder

u wax packing

u dental material

4. Overview of characteristics and application scope of nano-scale high-purity spherical silicon micropowder:

Nanometer-scale high-purity spherical silicon micropowder is a vital functional inorganic material characterized by chemical stability, acid and alkali resistance, an exceptionally large specific surface area, well-developed pores, high surface activity, excellent oil absorption, strong thickening properties, high-temperature tolerance, superior electrical insulation, and UV resistance. Its unique spherical structure confers physical and chemical properties unmatched by conventional materials. These distinctive features enable not only the enhancement of traditional materials but also the development of novel ones, such as high-strength, ultra-hard, highly ductile, and superplastic materials; insulating and electrode materials; superconducting materials; specialized low-temperature sintered refractory materials; and advanced thermal exchange materials.

The chemical inertness and unique thixotropic properties of this compound significantly enhance the tensile strength, tear resistance, and wear resistance of rubber products, with the modified rubber exhibiting tensile strength increased by several dozen times. It serves as an additive for controlling rheological and thixotropic properties in liquid systems, adhesives, and polymers, providing anti-settling, thickening, and anti-sagging effects. Additionally, it reinforces HCR and RTV-2K silicone rubbers, regulates free flow, and acts as a anti-caking agent to improve powder characteristics.

This is why nano-scale high-purity spherical silicon micropowder has become a powder material with broad applications and growing market demand. It is now widely used in rubber, coatings and paints, electronic packaging materials, silicon-based substrates, functional chemical fibers, functional plastics, advanced ceramics, special refractory materials, sealants, adhesives, as well as in chemical, pharmaceutical, and pesticide industries.

5. Technical specifications of nano-scale high-purity spherical silicon micro-powder:

6. Basic technical parameters of conventional nano-scale ultra-fine spherical silicon micro-powder with high purity:

7. Application Analysis of Nano-Scale Spherical Silicon Micropowder in Cosmetics:

It is well known that cosmetics should have strong UV shielding ability, preferably to protect the human body from the harm of UVB and UVA. In fact, UV shielding includes two aspects, one is the absorption of UV mentioned above, the other is the reflection of UV.

Sunscreen products traditionally used organic compounds as UV absorbers. However, excessive application to protect skin from UV exposure may increase risks of skin cancer and chemical allergies. In contrast, nano-scale high-purity spherical silicon micropowder, an inorganic component, is non-toxic, odorless, and easily compatible with other cosmetic ingredients. Its white color allows simple coloring, and it excels in UV reflection with excellent stability. Notably, it remains undecomposed or discolored under UV exposure and does not chemically react with other formula components. These outstanding features establish a solid foundation for the advancement of sunscreen cosmetics.

l Nail enamel

In nail polish formulations, silica ensures uniform pigment distribution within the gloss agent, prevents pigment sedimentation, and provides rheological properties to enhance application performance. When the solvent system's refractive index matches silica's (1.48), transparent formulations such as base and top coats can be achieved. Conversely, high concentrations may cause matting effects that reduce desired gloss. Both hydrophilic and hydrophobic silica products are suitable for nail polish, with concentrations between 0.25% and 4.0% being recommended.

l lipstick

In lipsticks, silica dioxide ensures even pigment distribution and significantly enhances heat resistance, preventing softening when temperatures rise. After application, it stops the lipstick from seeping into fine lip lines, ensuring long-lasting color retention. However, higher concentrations may reduce the product's shine.

l Eye Care

Many eye and facial cosmetics, including blush, foundation, lipstick, mascara, and eyeliner, can achieve their desired properties and stability through the use of silica alone. As an effective anti-caking agent and free-flowing agent, silica enhances storage stability and powder dispersion. It also enables the use of pigments in cosmetics, particularly in high-solid formulations. Additionally, silica serves as an efficient processing aid for grinding and filtering powdered products.