Pregelatinized Cassava Starch delivers remarkable improvements in powder agglomeration status and is widely adopted as a functional auxiliary in powder processing, construction powder, feed powder, chemical powder and other industries to boost powder fluidity and eliminate particle agglomeration and caking. Its functional mechanism precisely targets the root causes of common powder agglomeration problems. Ultra-fine powders possess large specific surface areas and high surface energy, which easily trigger electrostatic and moisture adsorption between particles. Excessively narrow inter-particle gaps further lead to adhesion and agglomeration under extrusion. This issue worsens under high ambient humidity, uneven particle size distribution, and formulations containing hydrophilic additives, ultimately causing inconsistent material mixing, unsmooth discharging and unstable finished product quality.
Manufactured through high-temperature gelatinization, drying and pulverization, Pregelatinized Cassava Starch breaks the crystalline structure of native starch and acquires stable properties including rapid cold-water dispersion, resistance to secondary agglomeration and uniform particle size - these constitute its core advantages in improving powder dispersion. Unlike native starch, it functions efficiently via direct dry blending without the need for high-temperature gelatinization. When incorporated into powder systems, fine starch particles uniformly adhere to the surface of base material particles and form a thin isolating protective film. This barrier prevents direct contact between base particles, significantly reduces inter-particle electrostatic adsorption and molecular adhesion, and physically eliminates the fundamental conditions for powder agglomeration.
Meanwhile, it exhibits mild water absorption behavior, distinct from high-absorbency additives that cause instant caking. It slowly absorbs residual free moisture within powder systems, balances overall powder humidity, and prevents wet caking induced by localized over-hydration. In practical production, the addition of 2% to 5% Pregelatinized Cassava Starch to agglomeration-prone powders such as ultra-fine calcium carbonate, talc powder, feed premix and dry-mixed mortar substantially improves powder looseness and eliminates caking and pellet formation during transportation, stirring and storage.
Strict dosage control is critical, as excessive addition leads to starch self-agglomeration and worsens powder caking. For high-humidity and high-viscosity specialized powder systems, the modification effect can be further stabilized by compounding with a small amount of lubricant. Overall, in conventional powder processing scenarios, Pregelatinized Cassava Starch provides stable anti-agglomeration performance with wide applicability and high cost efficiency, serving as a high-quality powder modification auxiliary agent.
