Silver Ag Nanopowder Water Dispersion (Ag, 15 nm, 1000 ppm) is a water-based dispersion containing silver nanoparticles with a particle size of 15 nm and a concentration of 1000 parts per million (ppm). Here are the key technical specifications and properties of this material:
1. Composition and Properties:
- Material: The dispersion contains silver nanoparticles (Ag), a material known for its excellent electrical conductivity, thermal conductivity, and antimicrobial properties.
- Particle Size: The 15 nm particle size indicates that the silver nanoparticles are larger than those in a 2 nm dispersion but still small enough to offer a high surface area and improved performance in various applications.
- Concentration: The 1000 ppm concentration means that for every million parts of the dispersion, 1000 parts are silver nanoparticles. This is a moderate concentration compared to higher concentrations like 2000 ppm, offering a balance between silver content and ease of handling.
- Water-Based: This dispersion is water-based, meaning that it is easier to handle and less toxic compared to solvent-based dispersions.
2. Key Features:
- Moderate Concentration: The 1000 ppm concentration provides a good amount of silver for applications requiring moderate levels of silver nanoparticles, without the high concentration of 2000 ppm.
- Fine Particle Size: At 15 nm, the silver nanoparticles in this dispersion provide a balance between high reactivity, electrical conductivity, and ease of dispersion.
- Water-Based: The water-based formulation makes this dispersion environmentally friendly, safer to handle, and easy to incorporate into a variety of applications.
3. Applications:
- Electronics and Conductive Inks: Due to its electrical conductivity, this silver nanopowder is commonly used in electronic components, conductive inks, and printed electronics. The 15 nm size allows for good conductivity and stability in the inks.
- Antimicrobial Coatings: Silver nanoparticles are well known for their antimicrobial properties. This dispersion can be used in coatings for medical devices, textiles, or surfaces that require resistance to bacterial or fungal growth.
- Catalysis: Silver nanoparticles can be used as catalysts in various chemical reactions. The moderate concentration in this dispersion allows for efficient catalytic processes while maintaining stability.
- Sensors and Biosensors: Silver nanoparticles, due to their high surface area and reactivity, are widely used in sensors and biosensors, providing high sensitivity in detecting various chemical or biological substances.
- Water Purification: The antimicrobial properties of silver make this dispersion useful in water purification systems, helping control microbial contamination.
- Photovoltaic and Optoelectronic Devices: This silver nanopowder can also be used in solar cells and LEDs, enhancing their optical properties and efficiency.
4. Advantages:
- Good Reactivity: The 15 nm particle size offers a large surface area to volume ratio, making the nanoparticles more reactive for applications in catalysis and antimicrobial coatings.
- Moderate Silver Concentration: With a 1000 ppm concentration, this dispersion provides enough silver for various applications while still being easy to handle and process.
- Environmental Safety: As a water-based dispersion, it is safer to handle than solvent-based options and more environmentally friendly.
- Antimicrobial: Silver nanoparticles are widely used for their antibacterial and antiviral properties, making this dispersion suitable for a variety of hygiene and medical applications.
5. Handling and Storage:
- Storage: The dispersion should be stored in a cool, dry place in a sealed container to prevent evaporation of the water and to avoid particle settling over time.
- Handling: Use protective gear such as gloves and goggles when handling the dispersion to avoid contact with the nanoparticles, which may pose health risks if inhaled or ingested.
- Stirring: Regular stirring or shaking may be necessary to prevent sedimentation of the nanoparticles in the dispersion over time.
6. Potential Limitations:
- Sedimentation: As with most nanoparticle dispersions, sedimentation can occur over time, which may affect the uniformity of the dispersion. This can be managed by stirring or shaking the solution periodically.
- Silver Content: The 1000 ppm concentration may be too high or too low for specific applications, so it might need to be diluted or adjusted depending on the requirements of the application.
Summary:
Silver Nanopowder Water Dispersion (Ag, 15 nm, 1000 ppm) is a moderately concentrated, water-based dispersion containing silver nanoparticles with a 15 nm particle size and a 1000 ppm concentration. The dispersion is suitable for applications requiring moderate silver content, such as electronic components, antimicrobial coatings, catalysis, sensors, and water purification. The 15 nm particle size ensures good electrical conductivity, catalytic properties, and antimicrobial activity, making it a versatile material for a wide range of industries.