1. Application of daily necessities

The polyurethane resin has good adhesion and is used as an adhesive for food packaging. It is also used in the sealing materials of diapers and water purifiers, and plays an important role as a Chinese adhesive influence factor for various shoes.

2. Application of electronic products

Polyurethane adhesive has good abrasion resistance and adhesion. It is used as a binder for magnetic materials of various recording media in the manufacturing process of computer magnetic disks, audio tapes, IC cards and electronic tickets, so that the recording density is remarkable. improve. In recent years, polyurethane adhesives have also been applied to the printed circuit of mobile phones, and further development and application to meet the requirements of the times.

3. Application in railway construction

The ballastless track laying (the development direction of high-speed rail engineering technology) is mainly made of domestic polyurethane adhesive. The single rail is embedded into a convex block every five meters. Each side of the block needs to be filled with polyurethane adhesive of about 17.8kg per kilometer. The construction of ballastless track requires more than seven tons of polyurethane potting adhesive.

In addition to the use of railways, the demand for polyurethane adhesives in the production of high-speed trains is gradually increasing. Polyurethanes are responsible for caulking, glass bonding, subway bonding, and sealing waterproof lamps on vehicles.