The origin and Prospect of aluminum-plastic plate | aluminum-plastic composite plate is referred to as aluminum-plastic plate. It is a new material made of aluminum plate with surface treatment and baking paint as the surface layer and polyethylene plastic plate as the core layer through a series of technological processes.
Aluminum plastic plate was first developed and produced by aiusingen in Germany, and then improved by Forken and Aloca in the Netherlands. After the 1990s, the product quality has gradually stabilized and reached a high level. Because the aluminum-plastic plate is composed of two materials with different properties (metal and non-metal), it not only retains the main characteristics of the raw materials (metal aluminum, non-metal polyethylene plastic), but also overcomes the shortcomings of the raw materials, and then obtains many excellent material properties. Such as luxurious and beautiful, colorful and decorative; Weather resistance, corrosion resistance, impact resistance, fire resistance, moisture resistance, heat insulation, sound insulation and earthquake resistance; Light weight, easy processing and molding, easy handling and installation, rapid construction and other characteristics. These properties open up a broad application prospect for aluminum-plastic plate.
Due to its many advantages in material performance, aluminum-plastic panels are widely used in various architectural decorations, such as ceilings, wrapped columns, counters, furniture, telephone booths, elevators, storefronts, billboards, dustproof room walls, plant walls, etc., and have become the representative of metal curtain walls (natural stone, glass curtain walls, metal curtain walls) among the three curtain walls. In developed countries, aluminum-plastic panels are also used in the manufacture of bus and train boxes, aircraft Partition wall materials of ships, external boxes of equipment and instruments, etc.
The development of aluminum-plastic composite board in China is only a short decade, and has made remarkable achievements. It will achieve greater development in the future. Its prospect is very broad. The main reasons are as follows.
1、 Aluminum plastic plate is a new decorative material, which has many incomparable advantages over other traditional decorative materials, and has strong competitiveness in decorative materials.
2、 China's urban construction, real estate and decoration industry are developing rapidly, and there is a great demand for decoration materials. Moreover, after the national economy develops to a certain level, the decoration grade of the construction industry begins to rise, and the consumption proportion of high-grade decoration materials increases year by year, which provides favorable objective conditions for the development of aluminum-plastic plate.
3、 After more than ten years of efforts, the product performance and application technology of aluminum-plastic composite plate have been gradually accepted by China's construction industry. In the future, with the improvement of construction specifications, its application in curtain wall will be further expanded. At present, the glass curtain wall, which occupies the mainstream of curtain wall in China, has the defect of light pollution, and its development will be limited in the future.
4、 At present, the export situation of China's aluminum-plastic composite board is very good, which is because China's products have strong competitiveness in both quality and price. As long as we grasp the quality, we will make greater progress on this basis in the next stage.
5、 As a new type of composite material, aluminum-plastic composite plate has a wide range of applications. It can not only be applied to curtain walls, indoor and outdoor decoration, but also be further extended to other fields, such as civil engineering of tunnels and vehicle decoration of automobiles.
Although China's aluminum-plastic composite board has achieved rapid development, it should be noted that it still faces many challenges in the future, and there is still a lot of work to be done in production technology and application technology. For example, the following aspects.
1、 Aluminum plastic plate raw material problem. Raw materials are the basis for producing qualified products. On the basis of meeting the performance requirements of aluminum-plastic plate, we should continue to carry out the research and development of auxiliary raw material technology that can help improve product quality or reduce cost. For example, research on low melting point polymer films. This can not only avoid the scald of fluorocarbon coating, but also reduce the energy consumption in the composite process. Another example is to carry out research on PE recycled materials to ensure the quality of aluminum-plastic composite board products.
2、 Further development of aluminum plastic plate function. At present, the development trend of decorative materials is towards the integration of decorative materials and functional materials, that is, when designing materials, we should consider the decoration and function of materials as much as possible. As a new decorative material, aluminum-plastic plate must make great efforts in the functional development of products. For example, carry out research on electromagnetic shielding function and thermal insulation function. In the coating materials, some development and research with antibacterial and fireproof functions are carried out.
3、 In depth study on the durability of aluminum plastic plate. A large part of the products of aluminum-plastic plate are used outdoors for curtain wall or outdoor decoration. The outdoor environment is very bad, and it has to withstand wind, rain and sunlight for a long time. Although aluminum-plastic sheet has been tested for more than 30 years since its birth in Europe in 1969, its durability (service life) is still the focus of attention. At present, the service life promised by aluminum-plastic plate manufacturers is generally determined according to the information provided by the paint. However, this is not complete, because the performance of the coating depends not only on the type of coating used, but also on the coating process. In addition, as the durability of aluminum-plastic plate, the environmental corrosion behavior of polymer film, core material and their composite should also be considered. In addition, the peeling strength of exterior wall aluminum-plastic plate is very high, but when applied to engineering, aluminum-plastic delamination occurs.
4、 In depth study of production technology. Compounding is the key process of aluminum-plastic composite plate production. At present, the determination of technical parameters such as temperature, time and pressure of compounding mainly depends on experience and has certain limitations. It is very important to find out some regular things through further research, rise to theory and guide production practice.