Multifunctional Rheological Additives

As important additives for adjusting the rheological properties of liquids, they are widely used in modern industry. By adjusting viscosity, yield value and thixotropy, rheological additives can significantly improve the processing performance and user experience of products. With the development of technology, rheological additives are moving towards environmental protection, high efficiency and multifunctionality, providing more innovative solutions for all walks of life.

Application areas of rheological additives

Coatings and Inks

In coatings and inks, rheological additives are indispensable additives. They can adjust the fluidity during construction, prevent sedimentation and sagging, and improve the smoothness and uniformity of film formation. For water-based and solvent-based coatings, there are specially formulated rheological additives to meet different performance requirements.

Cosmetics

In cosmetics, rheological additives are mainly used to adjust the touch and stability of emulsions, pastes, gels, etc., making the products easier to apply and non-stratified. Typical applications include thickening of emulsions, molding of gels, and fluidity control of anti-gravity creams.

Building Materials

In building materials such as cement paste, gypsum and tile adhesive, rheological additives improve fluidity and construction performance, while enhancing anti-sagging and sedimentation performance, ensuring smooth operation and stability of the final product.

Lubricants and Greases

Rheological additives can optimize the viscosity index of lubricants and greases, ensuring stable fluidity and lubrication performance over a wide temperature range, and are widely used in industrial and automotive fields.

Adhesives and Sealants

In adhesives, rheological additives help achieve easy coating, anti-sagging and thickening effects, suitable for manual or automatic dispensing, spraying and other operation methods. In sealants, rheological additives ensure that they do not flow in a static state, while having excellent fluidity for construction.

Characteristics of rheological additives
Viscosity control
Rheological additives can adjust the viscosity of liquid systems, making them stable when static and having excellent fluidity when dynamic. This property is particularly critical in coatings and ink applications, which can prevent sagging and improve application performance.
Dispersibility and stability
Rheological additives have good compatibility with the system, can be evenly dispersed, and have temperature resistance, shear resistance and aging resistance, and can adapt to a variety of complex process conditions. Demand. These additives play an important role in coatings, inks, cosmetics, adhesives, lubricants and building materials.
Anti-settling property
Rheological additives can increase the yield value of the system, thereby effectively preventing solid particles from settling during storage. For example, in coatings, rheological additives can evenly distribute pigments and fillers and maintain product stability.
Thixotropy
Some rheological additives have thixotropic properties, that is, the viscosity decreases under the action of shear force and the viscosity recovers after the shear force is removed. This property is suitable for scenarios where temporary changes in fluidity are required, such as spraying or coating processes.
Anti-sag property
During the application process, rheological additives can enhance the sag control ability of liquids, making it less likely to slide down when applied on vertical surfaces, forming a uniform coating film.

Selection and use of rheological additives
System compatibility
Different types of rheological additives are suitable for different systems. For example, organic bentonite is suitable for solvent-based systems, while alkali-soluble thickeners are more suitable for water-based systems.

Rheology agents are a type of functional materials used to adjust the rheological properties of liquids. Rheological properties refer to the fluidity and deformation behavior of materials under external forces, such as viscosity, yield value, thixotropy, etc. By using rheology agents, the fluidity, stability and processing properties of liquids can be optimized to meet specific application requirements. This type of agent plays an important role in coatings, inks, cosmetics, adhesives, lubricants and building materials.

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