Silicon Oxide Nanopowder (SiO2, 96.3+wt%, 20-30 nm, coated with 3-4wt% KH550-Silane Coupling Agent)

Silicon oxide nanopowder (SiO2, 96.3+wt%, 20-30 nm), coated with 3-4 wt% KH550-Silane Coupling Agent, combines the properties of silica with enhanced surface functionality due to the silane treatment. This modification enables the nanopowder to be used in a variety of advanced applications, particularly in fields requiring improved adhesion, dispersion, and compatibility with organic materials.

Composition and Structure

SiO2 (Silicon Oxide):
Silicon oxide, or silica, is a naturally abundant compound made of silicon and oxygen. It is known for its strength, stability, and high transparency. SiO2 is widely used in industries such as electronics, materials science, and pharmaceuticals due to its versatile properties.
Purity (96.3+wt%):
With a purity of 96.3+wt%, the material contains only a small amount of impurities, ensuring its high performance in specialized applications where purity is critical, such as in coatings and composites.
Particle Size (20-30 nm):
The nanopowder has a particle size of 20-30 nm, which provides a higher surface area compared to bulk silica, enhancing its chemical reactivity, mechanical properties, and compatibility with other materials.
KH550-Silane Coupling Agent (3-4wt%):
The coating with 3-4 wt% KH550-Silane Coupling Agent significantly alters the surface properties of the silica nanoparticles. KH550 is a type of silane compound that is commonly used to improve the bonding between inorganic materials like silica and organic polymers. It introduces functional groups, such as amino groups, on the surface of the silica particles, which improves the dispersion of the nanopowder in polymer matrices and enhances the overall mechanical properties of composites.

Properties

1. Enhanced Surface Reactivity:
   The KH550-Silane Coupling Agent enhances the surface reactivity of the SiO2 nanopowder. The functional groups introduced by the silane treatment provide additional reactive sites for bonding with other materials, making the powder more versatile in applications requiring strong material interfaces.
2. Improved Dispersion:
   The silane treatment helps the nanoparticles to disperse more evenly in organic matrices, preventing agglomeration and improving the uniformity of the final product. This is particularly important for applications like coatings, composites, and inks, where uniformity is essential for optimal performance.
3. Increased Adhesion to Organic Materials:
   The KH550 coating promotes better adhesion between the silica nanopowder and organic materials, such as polymers and resins. This is crucial for improving the mechanical strength and durability of composites or coatings that incorporate the nanopowder.
4. Chemical Stability:
   SiO2 is inherently chemically stable and resistant to corrosion. The silane coating does not significantly alter the chemical stability of the nanopowder but enhances its interaction with organic compounds.
5. Thermal Stability:
   The material retains the excellent thermal stability of silicon oxide. It can withstand high temperatures without degradation, which is useful in high-temperature applications such as coatings, ceramics, and nanocomposites exposed to extreme conditions.
6. Optical Transparency:
   SiO2 nanopowder remains optically transparent, making it suitable for applications in optical devices, coatings, and films that require clarity and light transmission.

Applications

1. Materials Science and Nanocomposites:
Reinforcement in Polymers:
The treated nanopowder is often used in the creation of nanocomposites, where it acts as a reinforcing agent. The improved adhesion between the SiO2 particles and the polymer matrix enhances the mechanical properties of the composite, such as its strength, flexibility, and thermal stability.
Ceramic and Coating Applications:
The SiO2 nanopowder, coated with the silane agent, is also used in ceramic materials and protective coatings. The coating improves the dispersion of the silica in the matrix, leading to more uniform coatings with enhanced durability and resistance to wear, heat, and chemicals.

2. Electronics and Semiconductors:
Insulating and Dielectric Layers:
SiO2 is widely used in the electronics industry for creating insulating layers in semiconductor devices, such as transistors and capacitors. The silane-treated nanopowder provides improved compatibility with organic materials used in flexible electronics and advanced circuitry.
Semiconductor Fabrication:
The coated nanopowder can be used in semiconductor fabrication, where it plays a role in the creation of thin films that control electrical charge and improve the performance of integrated circuits.

3. Adhesives and Coatings:
Improved Adhesion in Coatings:
The silane treatment greatly improves the bonding between SiO2 and various types of adhesives and coatings, particularly those used in automotive, aerospace, and industrial applications. This results in more durable, high-performance coatings with better resistance to environmental stressors.
Nano-Coatings for Optics:
The nanopowder is used in optical coatings, where its enhanced dispersion and improved surface interaction with organic materials allow for more effective anti-reflective coatings and optical films.

4. Pharmaceuticals and Biotechnology:
Drug Delivery Systems:
The silane-treated SiO2 nanoparticles are utilized in the development of drug delivery systems, where their functionalized surfaces allow for better drug encapsulation, controlled release, and targeted delivery. The enhanced dispersion in organic matrices can help in designing more effective and efficient drug carriers.
Biomedical Applications:
SiO2 nanoparticles are also used in biomedical applications, such as in the development of biosensors or as components of biocompatible coatings for implants. The surface functionalization with the silane coupling agent can improve the interaction with biological tissues, promoting better integration and reducing the risk of rejection.

Safety and Handling

Health Considerations:
While SiO2 is generally considered safe, it is important to handle the nanopowder with care. Inhalation of fine dust particles should be avoided as they may cause respiratory irritation. Protective gear such as gloves, masks, and goggles should be worn when handling the powder.
Environmental Impact:
The silane-treated SiO2 nanopowder is considered environmentally benign, though, like all nanoparticles, it should be disposed of properly to prevent potential contamination of the environment. Its use in industrial applications is generally regarded as safe, but ongoing research is evaluating the long-term effects of nanoparticles in ecosystems.

Summary

Silicon oxide nanopowder (SiO2, 96.3+wt%, 20-30 nm) coated with 3-4 wt% KH550-Silane Coupling Agent provides enhanced surface properties, making it suitable for a variety of high-performance applications. The silane treatment improves dispersion in organic materials, enhances adhesion, and strengthens the interaction between the nanoparticles and matrix materials. With its combination of high chemical stability, optical transparency, and improved functionalization, this modified nanopowder is ideal for use in electronics, coatings, nanocomposites, and pharmaceutical applications.