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If you want to know the service life of the Hollow Polycarbonate Sheet, how can you do it without looking at the anti-aging properties?
The development of solar panels in China began in the 1990s. In the late 1990s, with the rapid development of China's economy, many plastic sheet manufacturers have also joined the ranks of the production of this product.
With the expansion of the Hollow Polycarbonate Sheet market, the products on the market has become uneven, making it difficult for consumers to judge when buying and selling. In particular, the most critical service life, there is no established standard to follow. So, how should we judge the service life of the Hollow Polycarbonate Sheet? The aging resistance of the panels can be a good criterion.
Hollow Polycarbonate Sheet curtain wall system
As we all know, the aging of organic chemical materials, mainly due to the influence of ultraviolet radiation and the stability of the material itself. Well, to ensure the anti-aging of sunlight panel, on the one hand, to ensure the stability of raw materials, on the other hand, to do a good job on the surface of the board anti-ultraviolet ray (UV) protective layer.
Hollow Polycarbonate Sheet light window
The stability of the raw material depends on two aspects: the quality of the raw material itself (with or without the addition of recycled materials) and the formulation of different raw materials for the panels and the additives that improve the physical properties.
Ultraviolet (UV) resistant process technology directly affects the service life of sunlight panels. There are three specific approaches to UV protection of sunlight panels.
Coating technology. The anti-UV absorber is applied to the surface of the Hollow Polycarbonate Sheet or added to the PC raw material in very low concentrations of UV absorber. UV resistance under this process is less durable.
On-line co-extrusion of anti-UV technology. That is, a certain concentration of anti-UV absorber added to the PC raw materials (general concentration of 5% -7%), to a certain thickness (30 ~ 50um) co-extruded on the surface of the Hollow Polycarbonate Sheet. In this process, the anti-UV effect of sunlight plate greatly improved. However, due to the anti-UV absorber in the PC raw materials in the concentration can not be too high, so it can not be guaranteed that 100% of UV light can not penetrate. In addition, the anti-UV absorber itself also has quality and life cycle limitations. At the same time, the UV absorber in a certain thickness of the anti-UV co-extruded layer may have an impact on the molecular structure of the PC feedstock.
Chemical coating anti-UV and thermal curing technologies. The chemical coating layer consisting of highly stable UV absorbers and intrinsically weather resistant materials is heat cured on the surface of the solar panel to ensure better weather resistance and less yellowing, overcoming the differences in weathering performance caused by different types and concentrations of UV absorbers. However, this process is expensive, and is basically used in the military or scientific research fields where the use of stringent requirements.
Interior partitioning with solar panels
As you can see, Hollow Polycarbonate Sheet are an excellent choice as a building lighting material. However, just like any other product, there are differences in the quality of sunlight panels. Therefore, a good choice of products is an important part of ensuring the quality of the Hollow Polycarbonate Sheet project.
Translated with www.DeepL.com/Translator (free version)