Agricultural surfactant technology has long faced a critical bottleneck in the evolving landscape of crop protection: balancing solid particle dispersion with stable emulsification in Oil Dispersion (OD) formulations, which are gaining traction—particularly for active ingredients sensitive to hydrolysis, as well as in high-load, multi-component, or biological systems.
According to a recent deep-dive by AgroPages, Ajinomoto Agricultural surfactant has introduced a breakthrough to address this challenge: Tensiofix®, a dual-function surfactant designed to act as both a dispersant and an emulsifier in a single package.
The Interface Challenge for agricultural surfactant:
OD formulations are fundamentally governed by two distinct interfaces. During storage, solid particles must remain uniformly suspended in the oil phase, requiring effective dispersion. Upon dilution with water for spraying, the oil phase must break into stable droplets, requiring emulsification.
Historically, managing these two interfaces meant juggling separate additives, often leading to instability, crystallization, or phase separation. Tensiofix® resolves this by integrating both functions into a single block-copolymer structure, allowing for “one-agent, two-effect” performance .
Enabling Complex and Green Formulations
Industry data indicates that this unified approach simplifies formulation development while enhancing robustness. It is proving effective not only for high-load chemical pesticides but also for emerging biologicals and nutrient blends.
A case study cited by AgroPages demonstrated that using the dual surfactant allowed for a physically stable Nicosulfuron OD formulation (40 g/L) that remained viable for at least two years at room temperature—a significant feat for an active ingredient known to be sensitive to pH and solubility parameters .
Market Impact
As the agricultural industry shifts toward more sustainable yet highly effective products, the demand for versatile adjuvants is rising. The “all-in-one” surfactant model reduces the number of components in a formulation, lowering manufacturing complexity and quality control risks while meeting the performance demands of precision agriculture
