Industrial additives cover fields such as coatings, metal processing, plastics, and pesticides. Surfactants are mainly used for "dispersion, lubrication, antistatic, and emulsification" to solve stability problems during production/use.
Application Field | Core Requirements | Common Types and Examples of Surfactants | Effect |
Coatings / Inks | 1. Pigment dispersion (prevent sedimentation) | - Dispersants: Anionic (Sodium Polycarboxylate), Non-ionic (Polyoxyethylene Polyoxypropylene Block Ether) | 1. Sodium polycarboxylate adsorbs on pigment particles to form a negative charge layer, preventing aggregation and improving dispersion stability by 50%; |
Metal Processing (Cutting Fluid, Rust Inhibitor) | 1. Emulsification and lubrication (reduce tool wear) | - Emulsifiers: Non-ionic (AEO-12, Span-85) | 1. AEO-12 emulsifies mineral oil to form an O/W cutting fluid; the lubricating film thickness reaches 5-10μm, extending tool life by 30%; |
Plastic Processing (Antistatic Agent, Mold Release Agent) | 1. Antistatic (reduce static adsorption of dust on plastics) | - Antistatic Agents: Cationic (Stearamidopropyl Dimethylamine), Non-ionic (Glycerol Monostearate) | 1. Stearamidopropyl dimethylamine migrates to the plastic surface, absorbing moisture to form a conductive layer; the surface resistance is reduced from 10¹⁴Ω to below 10⁹Ω; |
Pesticides (Emulsifiable Concentrates, Suspension Concentrates) | 1. Emulsification (stabilize active ingredients of pesticides) | - Emulsifiers: Non-ionic (Pesticide Emulsifier 600#, Styrylphenol Polyoxyethylene Ether), Anionic (Pesticide Emulsifier 500#, Calcium Dodecyl Benzene Sulfonate) | 1. Pesticide Emulsifier 600# and 500# are compounded (ratio 1:1) to emulsify organophosphorus pesticides, forming stable emulsifiable concentrates with a shelf life > 2 years; |
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