Photodegradation of Polyethylene

Through the synthesis using FT - IR showed stearic acid iron (FeSt3) photosensitizer. The photosensitizer and the preparation of nanometer titanium dioxide (TiO2) homemade photocatalytic degradation of thin film, through artificial accelerated ultraviolet aging degradation test, determine the containing photosensitizer, the mechanical properties of low density polyethylene (LDPE) film, FT - IR spectra and adhesion are the change of relative molecular weight. The result is: the iron stearate in low density polyethylene has strong photocatalytic degradation, and the content is higher, the stronger the photo catalysis. Nanometer titanium dioxide can delay the degradation of low density polyethylene induction period, and as its content increases, the more obvious effect.