N-490 Pure Star-Shaped Polymer

N-490 Pure Star-Shaped Polymer

• Product Name: N-490 Pure Star-Shaped Polymer

• Chemical Type: Tetrafunctional Block Copolymer (Alkoxylated Ethylenediamine)

• CAS No.: 9003-11-6 (Commercial routing for regulatory compliance)

Technical Specifications (Factory Standard)

• HLB Value: 34.5 (Calculated via Davies' group contribution method for multi-arm branched structures)

• Cloud Point (1% Aqueous Solution): 64°C

• Average Molecular Weight: 2700

• Physical Form: 100% Active, Solvent-Free Liquid

Product Description

N-490 is a high-performance, 100% active, solvent-free tetrafunctional block copolymer derived from an ethylenediamine core. Possessing an ultra-hydrophilic Davies-calculated HLB value of 34.5 and a clear cloud point of 64°C, its unique four-arm star-shaped polymeric architecture delivers exceptional thermal-shear stability and high-affinity metal surface adsorption. It functions as an elite emulsifier, solubilizer, and wetting agent for advanced aqueous industrial fluid formulations.

Key Applications & Benefits

• High-Tier Aqueous Emulsification: Exceptionally engineered for establishing stable, long-lasting oil-in-water (O/W) emulsions. The multi-arm branched chains form a dense steric hindrance barrier, preventing droplet coalescence in complex ionic environments.

• Electro-Chemical Metal Affinity: The nitrogen-containing amine core provides inherent electro-chemical attraction to metal substrates, forming a resilient lubricating film under severe mechanical shear in fully synthetic metalworking fluids (MWFs).

• Industrial Detergency & Wetting: Delivers superior dynamic wetting and soil-penetration performance, making it highly effective in specialized industrial alkaline cleaners and metal degreasing concentrates.