One of the reasons for the fading of polycarbonate tube

According to customer feedback and practice, there are many factors that affect the fading of polycarbonate tubes. The fading of plastic colored products is related to the light resistance, oxidation resistance, heat resistance, acid and alkali resistance of pigments and dyes, and the characteristics of the resin used. In the production of color masterbatch, it can be selected after a comprehensive evaluation of the above-mentioned properties of the required pigments, dyes, surfactants, dispersants, carrier resins and anti-aging additives. The following is one of the conventional reasons that affect product discoloration. For your reference.

Lightfastness

The light fastness of the colorant directly affects the fading of the product. For outdoor products exposed to strong light, the light fastness (light fastness) grade of the colorant used is an important indicator. If the light fastness is poor, the product will fade quickly during use. So this is why, for example, the anti-glare boards on the highway, water horses, etc., after a few years of use, the color will become lighter after being exposed to the sun, but generally when blow molding, a certain amount of anti-UV components will be added to ensure Persistence of product color retention time.

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