具有表面富集性能的三嗪紫线吸收剂的的合成及表征

Most of polymer materials are directly exposed to sunlight, leading to serious degradation on their surfaces.Functional triazine ultraviolet absorbers (FT-UVAs) were synthesized to protect the polymer materials surface betterfrom sunlight. The optical performance of FT-UVAs was studied by ultraviolet-visible spectroscopy. It is revealed thatthe FT-UVAs exhibit stronger UV radiation absorption. Compared to traditional UVAs, the distribution of FT-UVAs onpolymer surfaces has been improved almost 3 times, supported by X-ray photoelectron spectroscopy and attenuated totalreflection Fourier-transform infrared spectrometry. Contact angle measurements and surface energy analysis also suggest that polymer materials mixed with FT-UVAs exhibit excellent hydrophobicity and oleophobicity. Furthermore,calculation of dynamic process was conducted to gain insights into the surface enrichment mechanism of FT-UVAs in polymer.