Environmentally induced, colour change during natural degradation of selected polymers

The aim of this study was to examine the simultaneous effect of multiple degradation agents on selected polymer materials in natural environments, and the relative effect of atmospheric pollutants compared to other environmental parameters (heat, humidity and light). A complex exposure experiment was set up to investigate the colour change of 17 different types of polymers (cellulose carboxylate, polyamide, poly(vinyl chloride), polystyrene, polyethylene, polypropylene, polycarbonate, polyurethane, and melamine formaldehyde and phenol formaldehyde resins) in real time in different environmental conditions over a 2-year period at 11 sites across Europe and North Africa, sheltered from UV light and precipitation. (…)

Gianluca Pastorelli, Costanza Cucci, Oihana Garcia, Giovanna Piantanida, Abdelrazek Elnaggar, May Cassar, Matija Strlič, Polymer Degradation and Stability, Volume 107, Pages 198–209, September 2014

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