Application of hyperdispersants

Application of hyperdispersants

In modern industry and scientific research, hyperdispersants, as a highly efficient and multifunctional chemical additive, are playing an increasingly important role.

1. Basic concepts of hyperdispersants

Hyperdispersants, also known as polymer dispersants or super dispersants, are a new type of highly efficient polymer dispersants with a molecular weight between 1000 and 10000. It is mainly composed of two parts: anchoring groups and solvation chains. Through a specific chemical structure, it can form multi-point anchoring on the surface of particles and effectively disperse the particles to prevent them from reaggregating.

2. Structural characteristics of hyperdispersants

Anchoring groups: Common ones include -R2N, -R3N+, -COOH, -COO-, -SO3H, -SO2-, -PO42-, polyamines, polyols and polyethers. These groups can form multi-point anchoring on the surface of particles through the interaction of multiple bond energies, improve adsorption fastness, and are not easy to desorb.

Solvation chains: Common ones include polyesters, polyethers, polyolefins and polyacrylates. These segments have good compatibility in polarity-matched dispersion media, and can form a protective layer of sufficient thickness on the surface of solid particles, playing a spatial stabilizing role.

3. Application fields of hyperdispersants

Coatings and inks: Hyperdispersants can significantly improve the dispersibility and stability of coatings and inks, improve their rheological properties, make the coating more uniform and smooth, and improve the gloss and weather resistance of the product.

Pigments and dyes: In the preparation process of pigments and dyes, hyperdispersants can quickly and fully wet the particles, shorten the grinding time, and improve the grinding efficiency. At the same time, it can also prevent the reagglomeration of pigment particles and maintain the dispersion stability of the pigment.

Plastics and rubber: In the processing of plastics and rubber, hyperdispersants can improve the dispersibility of fillers, increase the filling amount and dispersion uniformity of fillers, thereby enhancing the mechanical properties and processing properties of the materials.

Ceramics and building materials: Hyperdispersants are also widely used in the fields of ceramics and building materials. It can improve the dispersibility of ceramic powders and increase the density and strength of ceramic products. At the same time, it can also play the role of thickening, strengthening and waterproofing in building materials.

Food and medicine: In the field of food and medicine, hyperdispersants are used to improve the dispersibility and stability of food additives and drugs, and improve the taste and efficacy of products.

Other fields: In addition, hyperdispersants also play an important role in magnetic recording materials, lithium battery positive electrode materials, nanomaterials and other fields.

4. The important role of hyperdispersants

Improve dispersion efficiency: Hyperdispersants can significantly reduce the interaction force between particles, making particles easier to disperse in the medium. At the same time, it can also form a protective layer on the surface of particles to prevent particles from re-agglomerating.

Improve product performance: By improving dispersibility and stability, hyperdispersants can significantly improve the physical and chemical properties of products, such as gloss, weather resistance, mechanical properties, etc.

Reduce production costs: Hyperdispersants can shorten grinding time and processing cycle, and improve production efficiency. At the same time, it can also increase the filling amount of fillers and reduce raw material costs.

Environmental protection and sustainability: Many hyperdispersants are made of environmentally friendly materials and will not pollute the environment. At the same time, they can also improve the durability and service life of products, reduce resource waste and environmental pollution.

5. Conclusion

As a highly efficient and multifunctional chemical additive, hyperdispersant plays an important role in many fields such as coatings, inks, pigments, plastics, rubber, ceramics, building materials, food, and medicine. By improving dispersibility and stability, it can significantly improve product performance and quality, reduce production costs, and improve production efficiency. At the same time, it also meets the requirements of environmental protection and sustainability, and has made important contributions to the development of modern industry. In the future, with the continuous advancement of technology and continuous innovation of products, the application field of hyperdispersants will be more extensive, bringing more convenience and beauty to people's lives and work.