Antistatic agent MOA3PK-70 (fatty alcohol polyoxyethylene (3) ether phosphate potassium salt) is a liquid anionic antistatic additive with an effective content of ≥70%. It is easily soluble in oil and water and has good processability. Its usage methods are divided into two categories: internal mixing method and surface coating method, depending on the application. Since the product is in liquid form, it facilitates precise metering and uniform dispersion, making it suitable for conventional mixing, injection molding, coating, and oiling processes.
In plastic modification applications, MOA3PK-70 is used as an internal antistatic agent. It is directly added to the resin matrix during the mixing process, migrates to the product surface to form a conductive layer, thereby continuously dissipating static charges. In the synthetic fiber field, this product serves as a core component of spin finish, evenly applied to the fiber surface via oiling rollers or immersion, imparting good cohesion, smoothness, and antistatic properties to the fiber. In coating and ink systems, it is added directly as a functional additive and mixed uniformly.
According to the Guoli Chemical product database, MOA3PK-70 has broad compatibility with various general-purpose resins such as PE, PP, PS, ABS, and soft PVC. Its antistatic effect is durable and stable, not easily失效 due to washing or wiping. Its flash point is >100°C, with no significant combustion risk under normal processing temperatures, but operation still requires wearing protective gloves and goggles to avoid direct skin and eye contact.
The database does not provide precise dosage parameters. The following are general suggestions based on industry practice. It is recommended that users determine the optimal dosage through small-scale trials:
| Application Area | Usage Method | Recommended Dosage (Reference Range) |
|---|---|---|
| PE/PP/PS/ABS Plastics Injection Molding, Extrusion, Blow Molding | Premix with resin pellets, then melt-blend using mixing equipment (twin-screw extruder, internal mixer) | 0.5%~3.0% (relative to total resin weight) |
| Soft PVC Calendered and Extruded Products | Premix with plasticizer, then add to PVC resin for mixing | 1.0%~5.0% (relative to plasticizer weight) |
| Polyester/Nylon/Polypropylene Spin Finish | Add to spin finish formulation, mix evenly, apply via oiling system | 3%~10% (relative to total finish formulation weight) |
| Coatings and Printing Inks | Add directly during paint or ink mixing stage and stir thoroughly | 0.2%~1.0% (relative to total coating/ink weight) |
Plastic Modification: It is recommended to pre-mix MOA3PK-70 with a small amount of resin powder or white oil to form a masterbatch, then mix with the remaining resin before extrusion or injection molding. Processing temperature should not be too high, and prolonged high-temperature residence should be avoided to prevent thermal decomposition of the product. Uniform mixing is key to ensuring consistent antistatic performance.
Spin Finish: This product has excellent emulsifying and wetting properties and can be well compounded with various spin finish components. It is recommended to dissolve it in deionized water before adding to the formulation and stir evenly. It has good hard water stability and good tolerance to calcium and magnesium ions.
Coatings and Inks: Add slowly under low-speed stirring during the paint mixing stage to avoid excessive bubbles from high-speed shear. Since the product has an HLB value of about 4.5, a compatible co-solvent or emulsifier may need to be added when used in water-based systems to maintain system stability.