In practical applications, the selection of light stabilizers is often not easy, generally you can pay attention to the following points:
(1) According to the maximum sensitive wavelength of the polymer, select varieties that have the highest possible absorption coefficient in this wavelength range.
(2) The effect of other additives, such as antioxidants, heat stabilizers, lubricants, colorants, etc., on the performance of the light stabilizer must be considered, and should not reduce the effect of the light stabilizer.
(3) Some light stabilizers have a certain degree of toxicity, so when the stabilizer is used in what kind of products, it should be carefully considered that it should not be added to food-contact plastic raw materials.
