2024 Author: Beatrice Philips | [email protected]. Last modified: 2024-01-18 12:09
Modern construction is not complete without material such as polycarbonate. This finishing raw material has unique properties, therefore, it confidently displaces the classic and familiar to many acrylics and glass from the construction market. Polymer plastic is strong, practical, durable, easy to install.
However, most summer residents and builders are interested in the question of whether this material transmits ultraviolet rays (UV rays) . After all, it is this characteristic that is responsible not only for the period of its operation, but also for the safety of things, the well-being of a person.
Does polycarbonate transmit ultraviolet rays and why is it dangerous?
Naturally occurring ultraviolet radiation is an electromagnetic type of radiation that occupies a spectral position between visible and X-rays and has the ability to change the chemical structure of cells and tissues. In moderate amounts, UV rays have a beneficial effect, but in case of excess they can be harmful:
- prolonged exposure to the scorching sun can provoke burns on the skin of a person, regular sunbathing increases the risk of oncological diseases;
- UV radiation negatively affects the cornea of the eyes;
- plants under constant exposure to ultraviolet light turn yellow and deplete;
- due to prolonged exposure to ultraviolet radiation, plastic, rubber, fabric, colored paper become unusable.
It is not surprising that people want to protect themselves and their property as much as possible from such a negative impact. The first polycarbonate products did not have the ability to withstand the effects of sunlight. Therefore, after 2-3 years of using them in areas illuminated by the sun (greenhouses, greenhouses, gazebos), they almost completely lost their original qualities.
However, modern manufacturers of the material have taken care of increasing the wear resistance of polymer plastic . For this, polycarbonate products were coated with a special protective layer containing special stabilizing granules - UV protection. Thanks to this, the material has acquired the ability to withstand the negative effects of UV rays for a long period without losing its initial positive properties and characteristics.
The effectiveness of the extrusion layer, which is a means of protecting the material from radiation during the guaranteed service life, depends on the concentration of the active additive.
What is radiation-shielded polycarbonate?
In the process of researching the material, manufacturers changed the technology of protection from hazardous sun exposure. Initially, a varnish coating was used for this, which had a number of disadvantages: it quickly cracked, became cloudy, and was unevenly distributed over the sheet. Thanks to the development of scientists, a new technology of protection against ultraviolet radiation using the co-extrusion method was created.
Manufacturers of polycarbonate with UV protection produce several types of material, which differ in terms of wear resistance and, accordingly, cost.
UV protection can be applied to polymer plates in several ways
- Spraying . This method consists in applying a special protective film to polymer plastic, which resembles industrial paint. As a result, polycarbonate acquires the ability to reflect most of the ultraviolet rays. However, this material has significant drawbacks: the protective layer can be easily damaged during transportation or installation. And also it is characterized by weak resistance to atmospheric precipitation. Due to the impact on polycarbonate of the above unfavorable factors, the protective layer is erased, and the material becomes vulnerable to UV radiation. The approximate service life is 5-10 years.
- Extrusion . This is a complex and costly process for the manufacturer, which involves the implantation of a protective layer directly into the polycarbonate surface. Such a canvas becomes resistant to any mechanical stress and atmospheric phenomena. To optimize the quality, some manufacturers apply 2 protective layers to the polycarbonate, which significantly improves the quality of the product. The manufacturer provides a warranty period during which the material will not lose its properties. As a rule, it is 20-30 years old.
The range of polycarbonate sheets is wide: they can be transparent, colored, tinted, with an embossed surface. The choice of a particular product depends on many circumstances, in particular, on the coverage area, its purpose, the buyer's budget and other factors. The degree of protection of polymer plastic is evidenced by a certificate that the distributor of the goods must provide to the client.
Application area
Canvases made of polymer plastic with UV protection are used in various areas of construction
- For covering gazebos, stationary cafeterias and open-air restaurants . People, furniture and various household appliances can be under the shelter made of protective polycarbonate for a long time.
- For the construction of roofs of huge structures: railway stations, airports . Strong and reliable material will make people stay under it as comfortable and safe as possible.
- For seasonal buildings: pavilions, stalls, sheds over the shopping arcade . For canopies over entrance doors, wickets, ordinary polymer plates are more often chosen - products with a thickness of 4 mm will protect from bad weather and at the same time will be much more practical and economical than plexiglass or awning covering.
- For agricultural buildings: greenhouses, greenhouses or greenhouses . It is not worth completely isolating plants from UV radiation due to the fact that they take an active part in plant photosynthesis. Therefore, the degree of protection of the polymer plates that are used for this purpose should be minimal.
Summer residents and builders increasingly began to use polymer plastic, which protects against UV rays, which indicates its practicality. Polycarbonate canvases are durable, lightweight, safe and have an attractive aesthetic appearance.
Correctly selected material will help not only to preserve property, but also make a person's stay under it as comfortable as possible.
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