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New conductive material nickel nanowires NiNWs Hongwu Nickel nanowires have a wide range of potential applications in electronic materials, catalysis, polymers, magnetic storage ultra-high density recording materials, sensors and self-lubricating materials. more
Transparent Colloidal Ag Antibacterial Nano Silver Colloid Ag (Antibacterial Nano Silver Colloid) has been well known antibacterial, antiviral and antifungal properties are enhanced by small particle size and large surface area. more
Nano silica particles used in epoxy resin, superhydrophobic coating nano silica powder Nano silica particles, 20-30nm, 99.8% purity, widely used in exposy resin and superhydrophobic coating. more
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Thermochromism refers to the phenomenon where a material undergoes color changes under temperature changes. This change is usually caused by changes in the electronic or molecular structure of the material. Its application principle mainly involves t...
With ultrasonic time and surfactant concentration increases, the powder dispersion after first increases and then decreases.
product origin:
Chinaitem no.:
A110. A112.shipping port:
Guangzhoucolor:
black powderpayment:
T/T,PaypalDifferent Surfactants Affect the Dispersion of Nano Silver Powder
Nano-silver is a new functional materials with small particle size, surface area, great activity, high catalytic activity, low melting point, good sintering performance, etc., while retaining the conductive metal silver, good antibacterial properties, electrical bright silver color cast, which is widely used as a catalyst material, anti-static materials, low-temperature superconducting materials, electronic pulp, bio-sensor materials and antibacterial, deodorant and absorb some of the UV protection materials. However, due to the presence of nano-powder surface area, surface atoms, more high surface energy, there is a lot of surface defects and dangling bonds between the particles easily agglomerate to form larger size aggregates, thus affecting the development and application of its products. At present, domestic and international research on nano silver dispersion is still relatively small, is not the system, thus further dispersion process and mechanism of nano silver dispersion has important practical significance. In this experiment, the polymer-surfactant polyvinyl-pyrrolidone (PVP), cationic surfactant cetyl trimethyl ammonium bromide (CTAB), and anionic surfactant sodium dodecyl sulfate ( SDS) and oleic acid as a dispersant for the silver to be dispersed, decentralized systems research time and surfactant concentration ultrasonic dispersion properties of nano silver in ethanol influence and make a preliminary study of its dispersion mechanism.
Fixed ultrasonic power for the next 560 W conditions, ultrasonic time, the type and concentration of surfactant has a major impact on the nano silver dispersion. With ultrasonic time and surfactant concentration increases, the powder dispersion after first increases and then decreases. PVP dispersion is better than CTAB, SDS and oleic acid. Nano silver in ethanol suitable dispersion process: ultrasonic time of 40 min, 1.5% PVP.
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