In numerous industrial sectors such as coatings, inks, and adhesives, formulation engineers frequently encounter a common dilemma: How can a product remain stable and sediment-free during storage, yet resist sagging during application? Traditional anti-settling and anti-sagging additives, like fumed silica and bentonite, often solve one problem but introduce new challenges—compromising gloss, affecting leveling, or adding complexity to the manufacturing process. Is there a smarter, more balanced solution to this paradox? The Anjikang 4410 series of liquid rheology additives is engineered precisely for this purpose.
Rheology control is far more than just increasing viscosity. Its true value lies in constructing an intelligent, shear-responsive network. At rest, this network is robust, immobilizing pigments and fillers to resist gravitational settling. Under the shear forces of application, the network temporarily breaks down, allowing for smooth flow and leveling. Once the shear ceases, the network rapidly rebuilds, providing a three-dimensional scaffold that prevents sagging.
Anjeka-4410, as a modified polyurea solution, is a perfect embodiment of this philosophy. It forms a three-dimensional network within the system via hydrogen bonding, delivering high thixotropy. Its key advantage lies in its liquid form: it requires no pre-activation or grinding, dispersing easily and uniformly under moderate shear. This significantly simplifies production and minimizes the risk of grit formation caused by poor dispersion.
True universality must withstand the test of diverse systems. The strength of Anjeka-4410 lies in its excellent system compatibility and broad performance efficacy.
In UV-Curable and Epoxy Systems: Whether in high-gloss UV topcoats or heavy-duty epoxy floor intermediates, Anjeka-4410 effectively prevents the sedimentation of dense materials like titanium dioxide and barium sulfate. It ensures excellent sag resistance while having minimal impact on gloss and leveling. Tests show that in epoxy-anhydride systems, Anjeka-4410 effectively inhibits pigment settling, maintaining a uniform and stable system.
In Inks and Adhesives: For screen inks, it resolves the issue of ink leakage from the mesh during press stops. In one-component epoxy adhesives, it enhances the anti-settling properties of inorganic pigment pastes. Even in highly demanding applications like LED encapsulation and electronic pastes, Anjeka-4410 is valued for its low impact on viscosity and excellent transparency.
Exceptional Performance in PVC Plastisols: Anjeka-4410 demonstrates significant potential for thickening and anti-settling in PVC plastisols. Internal Anjikang testing shows that at appropriate processing temperatures (e.g., 60°C), 4410 provides remarkable thickening, with performance comparable to, or even exceeding, some international benchmark products. This offers a new, efficient option for PVC processing.
Empowering Process and Sustainability: Deeper Advantages
Beyond its core rheological performance, the 4410 series reflects Anjeka deep understanding of user pain points.
Process Friendliness: It can be added either before the grinding stage or post-addition for viscosity fine-tuning, offering great flexibility for production adjustments and on-site customer use.
Eco-Conscious Option: For applications with strict odor requirements, Anjeka offers the 4410-NBP variant. This version uses N-Butylpyrrolidone as a solvent, effectively reducing the pungent odors associated with traditional solvents and supporting more environmentally friendly production.
Stability Assurance: With clear guidance on potential reactions with specific driers (e.g., cobalt salts) that may cause discoloration, the product data encourages thorough testing, demonstrating a responsible and meticulous approach.
Choosing 4410 is the first step; proper application is key to unlocking its full potential. We recommend:
Ensure Adequate Dispersion: Introduce it under moderate shear and mix thoroughly.
Be Patient in Evaluation: The rheological structure takes time to build. Assess final performance 2-4 hours after incorporation.
Leverage Temperature: In specific systems like PVC, allowing the process temperature to rise moderately (e.g., to 50-60°C) can significantly activate 4410's thickening power.
Conduct Validation Tests: For entirely new systems or those containing reactive components, always perform small-scale storage stability tests.
Faced with the complexity of different systems and stringent end-use requirements, rheology control need not be a compromise. With its broad applicability, exceptional balance of anti-settling and anti-sagging properties, minimal impact on appearance, and user-centric design, the Anjeka-4410 series is becoming a standard solution for engineers tackling rheological challenges.
If you are seeking a better solution for product sedimentation or sagging, or wish to explore the performance of 4410 in your specific system, contact us today. The Anjeka technical team is ready to provide free samples and professional application support, helping you achieve the perfect match and optimize your formulations!
Your message must be between 20-3,000 characters!
