Key Factors Affecting PE Adhesive Film Performance

Many believe PE adhesive and static films differ, but this is a misunderstanding. In the protective film industry, based on adhesive material, films are classified as adhesive-coated and self-adhesive. PE adhesive film is typically multi-layer co-extruded, with one layer using adhesive material, eliminating the need for glue coating.

Factors influencing PE adhesive films include PE crystallinity (lower crystallinity means better adhesion) and flexural modulus (lower modulus indicates softer film, better surface conformity).

PE adhesive films, made via processes like calendering, extrusion, and blow molding, are widely used in hardware, plastic, and optical products due to their excellent physical and chemical properties.

Static films, which are adhesive films, rely on electrostatic adsorption for adhesion. This method is ideal for smooth surfaces like glass, mirrors, and acrylic.

The production of PE adhesive film involves forming tubular material through plasticization, extrusion, and blowing, followed by cooling and winding. Blowing methods include flat blow, upward blow, and downward blow, each with distinct advantages and limitations based on the film's thickness, cooling efficiency, and production needs.