Technical Specifications:
- Chemical Composition:
- Primary Ingredient: Silicon Dioxide (SiO2)
- Purity: 96.3+ wt%
- Coating: 3-4 wt% KH550-Silane Coupling Agent
- Nanoparticle Size:
- Particle Size: 20-30 nm (nanometers)
- Particle Shape: Typically spherical or irregular, depending on synthesis conditions.
- Surface Area:
- High surface area due to the nanoscale size, which enhances the reactivity and interaction with other materials.
- Surface Modification:
- Coating Agent: KH550-Silane Coupling Agent (commonly used to improve compatibility and bonding between inorganic and organic materials).
- Function of KH550-Silane: The KH550-Silane improves the dispersion of nanoparticles in various media and enhances the chemical stability and adhesion to substrates.
- Density:
- Typically low compared to bulk materials, owing to the nanoparticle size and surface modifications.
- Crystal Structure:
- Amorphous: Silicon dioxide in its nanopowder form is typically amorphous unless processed under specific conditions to form a crystalline structure.
- Other Characteristics:
- Surface Charge: May vary based on the preparation method and the chemical environment, typically displaying a negative charge in aqueous solutions.
- Reactivity: High reactivity due to the large surface-to-volume ratio of the nanoparticles.
Applications:
- Nanocomposites:
- Purpose: Silicon oxide nanopowder is widely used to enhance the mechanical properties of polymers and composites.
- Application: It is added to materials like plastics, rubber, and epoxy resins to improve their strength, thermal stability, and durability. The KH550-Silane coupling agent enhances the bonding between the inorganic SiO2 particles and the organic polymer matrix, improving the overall performance of the composite material.
- Coatings and Paints:
- Purpose: Due to its high surface area and the presence of the silane coupling agent, it improves adhesion properties and durability.
- Application: It is used in coatings for metal, glass, and plastic surfaces to provide enhanced corrosion resistance, scratch resistance, and weatherability. The nanopowder also improves the anti-fouling and anti-reflective properties of the coatings.
- Catalysis and Catalysis Support:
- Purpose: Silicon dioxide nanoparticles can act as supports for catalytic reactions.
- Application: Used in chemical catalysis, they provide a large surface area for the deposition of metal catalysts, increasing their efficiency. These are important in industrial applications like petrochemical processing and pollution control (e.g., in catalytic converters).
- Drug Delivery Systems:
- Purpose: Due to its biocompatibility and ability to be functionalized with various bioactive molecules, it is used in medicine.
- Application: Used as a drug carrier or delivery system for controlled release in pharmaceutical applications. The silica surface can be functionalized with drugs, targeting agents, or imaging agents for cancer therapy, gene therapy, and other treatments.
- Electronics and Energy Storage:
- Purpose: Silicon oxide nanopowder plays a role in enhancing the performance of electronic devices and energy storage.
- Application: It is used in batteries (such as lithium-ion batteries) and supercapacitors to improve charge capacity, cycle stability, and overall performance. The nanoparticles can be incorporated into electrodes to increase their surface area, providing better conductivity and performance.
- Environmental Applications:
- Purpose: The high surface area and reactivity make silicon oxide nanopowder useful in environmental remediation.
- Application: It is used in water purification, air filtration, and soil remediation. It can adsorb pollutants and contaminants, including heavy metals, organic compounds, and other toxic substances, making it useful for environmental cleanup.
- Sensors and Detection Systems:
- Purpose: Due to their high surface area and reactivity, these nanopowders are used in sensors for detecting various gases or chemicals.
- Application: Used in gas sensors for detecting volatile organic compounds (VOCs) or harmful gases. They can be incorporated into sensors for environmental monitoring, industrial safety, and medical diagnostics.
- Cosmetic and Personal Care Products:
- Purpose: Silicon oxide nanopowder can be used in cosmetic formulations due to its smooth texture and absorptive properties.
- Application: Added to cosmetics and personal care products such as foundations, sunscreens, and powders for its ability to provide a smooth application and absorb excess moisture or oil from the skin.
Key Benefits:
- Enhanced Performance: Due to the small particle size, it offers enhanced surface reactivity and performance compared to bulk SiO2.
- Improved Dispersion: The silane coupling agent (KH550) ensures better dispersion of nanoparticles in various matrices, improving the overall performance of the material.
- Multifunctionality: The combination of high purity, nanoparticle size, and surface modification provides multiple applications in industries ranging from manufacturing to healthcare and environmental science.
