Why white masterbatch plastic products made of used yellow?
Release time：2016/9/23
white masterbatchmainly of titanium dioxide, titanium dioxide itself also have a aging period, when using a phase, titanium dioxide under ultraviolet light and thermal oxidation environment, slowly will be aging, become yellow, this is inevitable. Some yellow plastic raw material itself, such as ABS, once the titanium pigment, aging, ABS products yellowing degree is higher than that of PP, PE products. Titanium dioxide pigment, the more white (often with a certain proportion whitening agent, whitening agent will also ageing, slowly failure). Had made the product more white, yellow back, feeling the greater the contrast. In order to prevent or reduce such phenomenon can take the following measures.
(1) selection of rutile type titanium pigment, better than sharp titanium type TieBaiFen anti-aging performance.
(2) the appropriate adding antioxidants or uv absorber, increase titanium dioxide anti-aging cycle.
