PP plastic is a difficult material to stick. There are relatively few adhesive products that can be bonded, and at the same time, there are very few adhesives suitable for industrial production. Therefore, the adhesion of PP materials has always been a difficult problem to solve.
PP honeycomb panels are a common application of PP plastic. PP honeycomb panels have the advantages of being lightweight, high-strength, moisture-proof and waterproof, energy-absorbing and soundproof, green and environmentally friendly. It is mainly used in some situations where the strength to weight ratio is relatively high. It is necessary not only to meet certain requirements for strength, but also to keep the weight as low as possible. For example, car cases, container panels, soundproof decorative panels, etc.
Hot melt adhesive film has made an outstanding contribution to solving the bonding problem of PP materials. Using PO hot melt adhesive film can have good adhesion performance to PP materials. According to the principle of similar compatibility, PO hot melt adhesive films and PP are the same polyolefin materials, so they have good compatibility and can produce better adhesion. However, it is important to note that not all PO hot melt adhesives have good adhesion results to PP plastics. If the adhesive strength is to reach a certain target, the hot melt adhesive film itself also needs to be modified to a certain extent.
