Polyethylenimine (PEI), branched, is a highly cationic, water-soluble polymer composed of primary, secondary, and tertiary amines. Its high charge density and strong nucleophilic properties make it an effective agent for adhesion, dispersion, and complex formation. PEI is widely used in industrial applications, including coatings, adhesives, flocculants, and surface modifications, where strong ionic interactions and crosslinking are required.

Applications:
Adhesives & Sealants: Acts as a crosslinking agent to enhance adhesion and mechanical strength in industrial formulations.
Coatings & Surface Treatments: Modifies surfaces for improved wettability, charge control, and functionalization.
Flocculants & Water Treatment: Facilitates particle aggregation and separation in wastewater treatment processes.
Polymer Blends & Composites: Enhances dispersion and binding in composite materials for improved mechanical properties.