Hangzhou Jiupeng New Materials

Adding nano silica to coatings can improve their scrub resistance, strength, hardness, and other properties. By adding a small amount of cy-SP30T nano silica to the coating, the UV aging resistance of the coating can be improved from the original 250h to over 600h, the scrub resistance can be increased by more than 10 times, the drying time can be greatly reduced, and the problems of poor suspension stability, poor thixotropy, and low smoothness of the raw materials have also been well solved,. The opening effect of the coating with the addition of nano silica (CY-SP30T) has also been significantly improved, with no layering, anti sagging, good workability, greatly improved stain resistance, and excellent self-cleaning and adhesion properties.

Technical indicators of nano silica products:

project

index

appearance

White powder

model

CY-SP30T

Average particle size, nm

30±10

Specific surface area, m2/g

150-300

Content%

≥99.5

PH value

4-7

Loss on ignition (%) 950 ℃ x2h

≤6.0

Application characteristics of Jiupeng nano silica (CY-SP30T) in coatings:

1. Washable: The washability has increased from a few thousand times to tens of thousands of times

2. Weather resistance: The weather resistance can be increased by about three times. Adding a certain amount of Wanjing nano silica (CY-SP30T) can improve the UV aging resistance of traditional coating products from the original 250 hours to over 600 hours.

3. Stain resistance and self-cleaning properties: Research has shown that the stain resistance and self-cleaning properties of coatings can be improved through the following methods. Firstly, by utilizing the porous structure of nano silica and using certain technological means, a geometrically complementary interface structure (such as convex and concave phases) is formed on the surface of the coating film at the nanoscale, allowing it to adsorb air and form a stable gas barrier film on the surface; The second is to treat the surface of nano silica particles to present amphiphilicity or hydrophobicity, effectively improving the wettability of rainwater on the surface of building paint coatings and the adhesion of dust, thereby enhancing the stain resistance and self-cleaning ability of the coatings.

4. Antibacterial properties: In coatings, when the addition amount of CY-SP30T nano silica exceeds 0.5%, the coating exhibits significant antibacterial effects.

5. Hydrophobic and anti-corrosion properties: The hydrophobic and anti-corrosion coating of Jiupeng Nano silica (CY-SP30T) not only has good adhesion and corrosion resistance, but also high density and resistance to ion penetration.

6. Transparency: Jiupeng Nano Silica (CY-SP30T) can ensure the transparency of nano modified coatings. High wear-resistant transparent coatings can be prepared using nano silica (CY-SP30T), which increases their wear resistance by more than 10 times compared to the original.

7. Hardness: When the CY-SP30T nano silica particles are uniformly dispersed in organic materials, the nanoparticles act as rigid chains to enhance the organic material, thereby increasing the coating hardness of UV curable coatings, up to 2.5 times or more.

8. Thermal stability: In UV curable coatings, Jiupeng nano silica can increase the glass transition temperature of the coating film.

9. Viscosity: The addition of Jiupeng nano silica (CY-SP30T) can significantly improve the viscosity of coatings

Addition amount of nano silica:

It has been proven through practice that adding 2% CY-SP30T nano silica to the coating can achieve the best hardness, adhesion, weather resistance, viscosity, anti settling ability, and stability of the coating. The recommended dosage is 0.5-2%, and some product systems can reach more than 10%, depending on the actual situation.