Talking about the seven systems of hot melt adhesive

Existing hot melt adhesives can be roughly divided into 7 types, and there are some small classifications in each type, which are summarized as follows:

 

Type 1: Ethylene and its copolymers

Under this type are EVA (ethylene-vinyl acetate copolymer), EEA (ethylene-ethyl acrylate copolymer), EAA (ethylene-acrylic acid copolymer), EVAL (ethylene-vinyl acetate-vinyl alcohol terpolymer)

 

Type 2: Polyolefin (PO) 

Polyolefin hot melt adhesives include: PE (polyethylene), PP (polypropylene)

 

Type 3: APAO (ethylene-propylene-1-butene polymer)

 

Type 4: PES (polyester)

 

Type 5: PU (Polyurethane)

 

Type 6: PA (polyamide)

 

Type 7: Styrene and its block copolymer

This type basically includes SBS (styrene-butadiene-styrene block copolymer) and SIS (styrene-isoprene-styrene block copolymer)