Aluminum honeycomb panel has become a widely used non-ferrous metal structure material in industry. It has also been widely used in other industries and fields, such as machinery manufacturing, shipbuilding and chemical industry, etc. What are the impacts?
1.Aluminum honeycomb panel is made of polyurethane and epoxy resin type room temperature curing adhesive. The aluminum honeycomb panel has low bonding strength. It is measured for the aluminum honeycomb panel with a honeycomb core length of 4mm, a panel thickness of 1mm and a total thickness of 10mm. The 180°peel strength is about 4 N / mm. This aluminum honeycomb panel has poor adhesiveness and weather resistance, and the adhesive performance is greatly reduced after one year of use. Aluminum honeycomb panels produced by this process are not suitable for outdoor use, but can be used as decorative partitions indoors.
2. Aluminium honeycomb panel The aluminum honeycomb panel produced by the epoxy adhesive film process has low bonding strength. The 180°peel strength measured for the aluminum honeycomb panel with a honeycomb core length of 4mm, a panel thickness of 1mm, and a total thickness of 10mm. It is about 4N / mm, however, its bonding performance is good and weather resistance, and its peeling strength decreases little after 1 year of use. The disadvantage is that the bonding layer of the aluminum honeycomb panel is relatively brittle, and the aluminum honeycomb panel will delaminate after long-term vibration.
3.Aluminum honeycomb panel Adhesive strength of aluminum honeycomb panel produced by the continuous composite process of thermoplastic film is 3-5 times that of aluminum honeycomb panel produced by the previous two processes. For regular hexagonal honeycomb core, the side length is 4mm. An aluminum honeycomb panel having a thickness of 1 mm and a total thickness of 10 mm has a measured 180 ° peel strength value of about 18 N / mm. Its adhesion and weather resistance are good, and its peeling strength decreases little after 1 year of use.
Due to continuous production, aluminum honeycomb panels are highly efficient and can meet short-term high-volume supply requirements. The disadvantage of this process is the high cost of the planar continuous thermal laminator equipment and the huge investment. Thermoplastic adhesive film is a special type of hot-melt adhesive film. The adhesive film itself must have high cohesive strength and tensile strength, so that the aluminum honeycomb panel can be firmly bonded. If a general hot-melt adhesive film is used, the adhesive strength is very low, and the 180 °peel strength value is only 3N/mm.
