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Why is the black plastic tube aging slow?
- Jul 02, 2018 -

Why the black plastic tube to put the years on the sunlight can slow aging? The white plastic tube put the years on the sunlight, aging faster?

Plastics exposed to sunlight or strong fluorescence due to the absorption of UV energy, causing the oxidation reaction, resulting in degradation of the polymer, so that the deterioration of the appearance or the intrinsic performance of the products, a process known as photo-oxidation or photo-aging. The black plastic pipe is added carbon black in plastics, carbon black is a UV-screening agent, its mode of action of the reflection UV and that it does not enter inside the plastic products, reduce the aging rate, while the white plastic in the sun, of course aging on faster.