Classification of main components of press-sensitive adhesives

① Elastic type press-sensitive adhesive

The elastomer used for this kind of pressure sensitive adhesive was originally natural rubber, and then gradually expanded to a variety of synthetic rubber and thermoplastic elastomer. According to the elastomer used, this kind of pressure sensitive adhesive can be further divided into natural rubber pressure sensitive adhesive, synthetic rubber pressure sensitive adhesive, and thermoplastic elastomer pressure sensitive adhesive.

• a. Natural rubber pressure sensitive Adhesive
• b. Synthetic rubber and reclaimed rubber pressure sensitive adhesive
• c. Thermoplastic elastomer pressure sensitive adhesive

② Resin-type press-sensitive adhesive

This kind of pressure sensitive adhesive used resin as polyacrylate, polyurethane, polyvinyl chloride, polyethylene ether, etc. Among them, polyacrylate is the most used at present, and its output has exceeded that of natural rubber pressure sensitive adhesive.

• a. Acrylic pressure sensitive adhesive
• b. Silicone and other resin type pressure sensitive adhesives

Polyvinyl ether is a kind of resin pressure sensitive adhesive developed earlier, but its importance has been gradually replaced by acrylate pressure sensitive adhesive.

In addition, ethylene. Vinyl acetate copolymer (EVA), polyurethane, polyester, PVC, and other resins can also be prepared into a variety of pressure sensitive adhesives.