PO hot melt adhesive film is a major category in the hot melt adhesive film product classification. PO is an abbreviation for polyolefins, and polyolefins is translated as polyolefin. Therefore, PO hot melt adhesive film is also called polyolefin hot melt adhesive film.
So what are polyolefins? Polyolefin is a general term for a class of polymer polymers. It usually refers to a class of thermoplastic resin obtained by the individual polymerization or copolymerization of α-olefin such as ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 4-methyl-1-pentene, and certain cycloolefins. Polyolefin is most commonly used in hot melt adhesive films: polyethylene (PE) and polypropylene (PP), that is, PE hot melt adhesive film and PP hot melt adhesive film. These are collectively known as PO hot melt adhesive films.
PO hot melt adhesive film is often produced using the casting method, or it can also be produced using a coating method. It depends on the characteristics of the specific formulation material. PO hot melt adhesive film has good washing resistance. Depending on the material, it also has good low temperature resistance or high temperature resistance, and can withstand high temperatures up to around 100℃.
The application of PO hot melt adhesive film is not very common in traditional hot melt adhesive film applications. For example, the garment manufacturing and shoe industry do not make extensive use of PO hot melt adhesive film. This is not because PO hot melt adhesive films have problems with the adhesion strength of these materials; even PO hot melt adhesives have better adhesion strength. The reason it has not been used in these fields is because PO hot melt adhesive films do not feel good to the touch, and they usually require relatively high temperatures to be used, increasing the energy costs of enterprises.
The advantage of PO hot melt adhesive film is that it has a very good bonding effect on materials such as metal, plastic, and wood. It not only has strong adhesion, but is also resistant to high temperature cooking and weather resistance. This gives PO hot melt adhesive film an opportunity to be used in building materials that often have high requirements for weather resistance. The relatively mature application of PO hot melt adhesive film, which is currently the most used, is the manufacture of aluminum-plastic panels, which are used to bond aluminum skin to plastic sheets. In addition, the manufacture of aluminum honeycomb panels also has some demand for this type of hot melt adhesive film.
In short, PO hot melt adhesive film is a type of hot melt adhesive film product with excellent performance. It has good application results for specific materials and specific fields. I believe that in the future, more and more material developers will understand and apply it.
