Polyethyleneimine

Physical properties

Polyethyleneimine is a cationic polymer formed by the polymerization of aziridine under specific conditions, with each… PEI Each monomer contains two. C And one N , which contains primary amines, secondary amines, and tertiary amines in its molecular chain 3 The ratio of the number of amine groups is 1:2:1 。

1. In coatings, fibers, electroplating, and on metal surfaces, it can form intermolecular interactions such as hydrogen bonds, thereby enhancing surface adhesion—particularly effective for substrates that are difficult to bond to.

2. Papermaking, paper processing, and the petroleum industry: neutralizing anionic charges to enhance fixing efficiency and retention, exerting resin‑control and white‑water‑treatment effects, and promoting the dispersion and fixation of enone dimers. PEI After the addition of other substances, it exhibits exceptionally high wet strength and is widely used as a plugging agent in paper processing and the petroleum industry.

Packaging and Storage

The packaging specification is 25Kg Plastic drums, user-specified packaging. Store this product under dry, cool, and airtight conditions; be sure to avoid contact with acids and oxidizing agents. The shelf life of the product, when stored in its original packaging, is as follows, starting from the date of manufacture: 12 Month; non-flammable and non-explosive, classified as a general hazardous material.