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Why does some plastic yellow over time?

April 26, 2017plastic time Yellow

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Why does some plastic yellow over time?

1 Answer

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Materials change color over time for a number of reasons. Some chemical reaction is happening to change the structure of some molecule or molecules in the object. These reactions could be facilitated by exposure to light, oxygen, heat, or other things. Without knowing the chemical composition of the material in question and the storage conditions, it really isn’t possible to write the specific chemical reaction(s).