engleski

The influence of aging on the transparency of plastic films

It is known that the mechanical properties of polymer materials exposed to atmospheric influences are significantly reduced. But when it comes to films, especially when they are used in greenhouses to protect plantations, they must retain certain mechanical properties after a long period of exposure to the sun and water and they must have a certain transparency so that the plant can continue to grow. The purpose of this study was to compare the transmittance of three different types of films: ethylene tetrafluoroethylene (ETFE), polyethylene (PE) clear, and PE diffused, before and after their aging (water, UV rays and humidity). Upon exposure to weather aging, decrease in the degree of transmittance in all three types of films was observed. This may indicate a certain degree of polymer degradation.

aging ; ethylene tetrafluoroethylene ; films ; greenhouses ; polyethylene

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