Application of gold powder dispersant

Gold powder dispersant is mainly used to improve the dispersibility and stability of gold powder in solvents, thereby preparing high-quality transparent conductive films or other related materials. The following is a detailed analysis of the application of gold powder dispersant:

1、 Application background

During the preparation of transparent conductive films, gold powder particles tend to aggregate and form larger particles, which can reduce the transparency and conductivity of the film and affect its overall performance. To solve this problem, it is necessary to use a gold powder dispersant to reduce the surface tension between gold powder particles, so that the gold powder particles can be better dispersed in the solvent.

2、 Main function

Dispersion effect: The gold powder dispersant can wrap around the surface of the gold powder particles, forming a protective film to prevent the aggregation of the gold powder particles. Meanwhile, dispersants can also alter the surface properties of gold powder particles, making them easier to disperse in solvents.

Stabilization effect: Through the action of dispersants, gold powder particles can maintain a stable dispersion state in solvents for a long time, and are not prone to settling or agglomeration.

3、 Application Fields

Transparent conductive film: Gold powder dispersant is one of the key materials for preparing high-quality transparent conductive films. By optimizing the dispersion process and selecting appropriate dispersants, thin films with high transparency and conductivity can be prepared.

Coatings and inks: Adding gold powder dispersants to coatings and inks can improve the dispersibility and stability of gold powder, thereby enhancing the glossiness, coverage, and dispersion uniformity of coatings and inks.

Other fields: Gold powder dispersants can also be applied in electronic pastes, conductive adhesives, electromagnetic shielding materials, and other fields to improve the conductivity and dispersion uniformity of materials.

4、 Precautions

Choose the appropriate dispersant: Select the appropriate dispersant for gold powder based on the type of gold powder, the properties of the solvent, and the application requirements of the final product.

Control the dosage of dispersant: Excessive residual dispersant may affect the performance of the final product, so it is necessary to strictly control the dosage of dispersant.

Optimizing dispersion process: By adjusting parameters such as temperature, pressure, and stirring speed during the dispersion process, the dispersibility of gold powder and the performance of the film can be further improved.

In summary, gold powder dispersants play an important role in improving the dispersibility and stability of gold powder, and are widely used in transparent conductive films, coatings, inks, and other related fields. During use, it is important to pay attention to key factors such as selecting appropriate dispersants, controlling the dosage of dispersants, and optimizing dispersion processes.