Year1
- 型号：
- VK-S01A/B
- 规格：
- 25公斤/桶
Nano-silica dispersion performance:
． Nano-silica dispersion has super acid, alkali, and high-temperature resistance: The nano-silica solution developed and produced by our company is acidic, neutral, and alkaline, and similar types of products are used in different environments. This product has strong acid resistance, alkali resistance and temperature resistance. It has good stability in strong acidic environments, such as trivalent chromium, hexavalent chromium, phosphoric acid and other solutions. In the sealed state at ℃, no gel change will occur for half a year, ensuring the performance and quality of the product itself.
． Super permeability: The size of ultra-fine nanometers is in the ~ range, and it has the characteristics of high activity, making the product highly permeable, and can be applied to edge areas that cannot be affected by metal surface treatment processes such as electroplating, and can be very It can effectively fill the defective positions such as ultra-fine micropores and improve the anti-corrosion and salt spray resistance.
3. Strong reactivity and insulation properties: Nano-silica can act on microporous defective parts in a short time (3 seconds to seconds). After baking and drying at an appropriate temperature (°C), it will interact with the substrate and the The surrounding auxiliary materials react and combine to provide anti-corrosion protection to improve the workpiece's corrosion resistance and salt spray resistance.
The mechanism of action of nano-silica dispersion:
The principle of nano-materials in improving the corrosion resistance and salt spray resistance of metals such as electroplated metal devices and coils is different from that of galvanizing, brushing protective paint, etc. Processes such as electroplating and painting cannot ensure that the corners of the device or even the main parts of the device are completely and absolutely protected by the plating or paint layer. Under a microscope, the electroplated workpiece has many ultra-fine pores (micron or even nanometer scale) exposed to the air. These unprotected defective parts will be the source of electrochemical reactions that cause the metal workpiece to rust. . Nanomaterials will use their special permeability, insulation, and reactivity to effectively target defective locations that cannot be affected by electroplating, painting, and other processes, greatly improving the corrosion resistance and salt spray resistance of metal devices.
How to use nano-silica dispersion material:
． Use in passivation liquid: In the electroplating process, add ~3 of this product directly to the passivation liquid product, stir evenly, and then use it according to the normal process.
． Directly used as a sealing agent: dilute the product ~ times with pure water, and then directly soak the device after electroplating, passivation, water washing and other processes in the pure water solution for about 3 seconds, then take it out and dry it.
3. The product can be directly added to the original passivation solution and sealing agent concentrate to improve product performance
It can also be directly added to the working solution in the electroplating process for use.
The above methods can greatly improve the corrosion resistance and salt spray resistance of metal devices. Depending on the type of process, it can generally be improved by 3~ based on the original salt spray resistance time.
, Nano-silica dispersion is still an excellent anti-sedimentation material for coatings and is widely used as an anti-sedimentation agent for coatings.
Nano silica dispersion product performance indicators:
Project
Index value
Model
Appearance
Translucent liquid
Transparent liquid
Silica content ()
Value
Particle size
Viscosity
Packing: kg/barrel
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