Pressure-sensitive adhesive is an adhesive that can be bonded instantaneously under a slight pressure. Pressure-sensitive adhesive is an adhesive for making adhesive tapes. It is divided into three types: solvent-activated, heated and pressure-sensitive. Among them, pressure-sensitive type is the most convenient and rapid development.




Classification of pressure sensitive adhesives




The pressure-sensitive adhesive can be divided into a rubber-type pressure-sensitive adhesive and a resin-type pressure-sensitive adhesive according to the type of the adhesive material, and the rubber-type pressure-sensitive adhesive is composed of a rubber as a binder, a tackifier, a filler, an anti-aging agent and the like. According to the type of rubber, it can be divided into natural rubber, polyisobutylene rubber, styrene-butadiene rubber pressure sensitive adhesive and the like. The adhesive of the resin type pressure sensitive adhesive is a synthetic resin, and has a homopolymer resin and a copolymer resin. When preparing pressure sensitive adhesives, it is necessary to add tackifiers, softeners, fillers and anti-aging agents. According to the type of resin, it can be classified into polyolefin, chloroacetic acid copolymer, acrylic resin, silicone and fluororesin pressure sensitive adhesive.