The causes of aluminum-plastic panels peeling

A brand-new kind of decorative material is the aluminum-plastic composite panel. It has quickly developed and is extensively utilized both domestically and internationally because of its robust decorating, vibrant color, durability, lightweight, and simple processing.

A novel product with high technological content, aluminum-plastic composite panels appears to be produced in a fairly straightforward manner to laypeople. As a result, there are some technical challenges associated with the quality control of aluminum-plastic composite panel products. You may learn more about the elements influencing the 180° peel strength of aluminum-plastic composite panels from the following vendors of aluminum-plastic composite panels:

The aluminum foil itself is of poor grade. Although this is a relatively unnoticed issue, it has already affected the way aluminum-plastic panels are made. The heat treatment of aluminum materials is one aspect of it. On the other hand, when employing recycled aluminum scrap, some producers of aluminum plates do not properly regulate the quality. To assure the quality of the materials, this necessitates that the manufacturers of aluminum-plastic panels analyze the suppliers of the raw materials from all angles and create business relationships after identifying suitable subcontractors.

1. The issue with aluminum plate pretreatment

The composite quality of the aluminum-plastic plate is directly correlated with the cleaning and layer quality of the aluminum plate. To generate a dense chemical layer on the surface and enable the polymer film to produce a good bond, the aluminum plate must first be washed to eliminate surface oil and contaminants. Some manufacturers, however, do not rigorously manage the temperature, concentration, treatment time, and renewal of the treatment liquid throughout the pretreatment process, which has an impact on cleaning quality. Furthermore, some new manufacturers do not pretreatment the aluminum plate and use it directly. All of these factors will inevitably result in poor composite quality, low 180° peel strength, or instability.

2. The choice of the core material

When compared to other plastics, the bonding effect of the polymer film and PE is the best, and the price is reasonable, non-toxic, and simple to process. As a result, the primary material is PE. To save money, some small manufacturers employ PVC, which has a weak bonding effect and emits lethal noxious gas when burned recycled PE materials or PE raw materials mixed with the bottom material. As a result of the diverse types of PE, aging degrees, and so on, the final surface will be unstable in terms of composite quality.

3. The choice of polymer film

Polymer membrane is a type of bonding material with unique qualities; it is the primary factor influencing composite quality. The polymer film is co-extruded in three layers and has two sides. One side is bonded with metal, the other with PE, the middle layer is a PE substrate, and the properties of the two sides are opposed. Material costs differ greatly on both sides. The materials used in the aluminum plate shop must be imported and are costly. Materials containing PE can be manufactured in China. As a result, some polymer filmmakers make a big deal out of it and employ a lot of PE fusion ingredients to save money. The front and back sides of the polymer film cannot be swapped out since their use is directional. A polymer membrane is a type of membrane that decomposes on its own; improper melting results in a false composite. Early on, when the strength is great and the period is long, the strength will decrease as a result of weathering, and possibly even bubbling or opening of the glue.

I hope everyone finds the information I just shared useful. Additionally, the business offers Feve Aluminum Composite Panel; if you require one, don't hesitate to contact us.