The production of aluminum plastic board seems very simple to the layman, but it is actually a new product with high technology. Therefore, there are some technical difficulties in the quality control of aluminum plastic sheet products. Today, we will talk about the factors that affect the 180-degree peel strength of aluminum plastic panel.
1.The quality of aluminum foil itself
On the one hand, it is the heat treatment process of aluminum materials. On the other hand, some aluminum plates and producers have poor quality control when using recycled aluminum scrap.
2. Pre-treatment of aluminum plates
The cleaning and chemical quality of the aluminum plate are directly related to the composite quality of the aluminum plastic plate. During the pre-treatment process, the temperature, concentration, treatment time, and renewal of the treatment liquid of the treatment liquid are not strictly controlled, which affects the cleaning quality. All of these will lead to poor composite quality, 180 ° peel strength is low, or unstable.
3. Selection of core materials
The difference in the composite temperature due to different types of PE, aging, etc., results in unstable final composite surface quality.
4.Selection of polymer membrane
The polymer film is a kind of adhesive material with special properties, which affects the main factors of the composite quality. The use of the polymer film has directionality, and the positive and negative surfaces cannot be swapped.
5.The peel strength of aluminum plastic panel has a lot to do with the production equipment.
After the equipment has pressed the aluminum layer, the plastic layer, and the polymer film together, it is baked for a certain period of time after being heated to a preset temperature. Even if the compounding is completed, and then cool down.
6.There is also a method of producing aluminum-plastic board using a co-extrusion process
When the PE core board is extruded, the melt glue is extruded onto the surface of the core board. The performance of the aluminum plastic board produced by this process is also excellent, especially the peel strength is higher.
The above is the factors that affect the peel strength of aluminum plastic board, I hope it will be helpful to you.