why do new plastics/rubber off-gas?

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just got a new mousepad and it stinks. curious as to why this happens.

In: Chemistry

2 Answers

Anonymous 0 Comments

Most foamlike plastics and rubbers are made by mixing the rubber/plastic precursor with what is called a “blowing agent,” these are added to chemically create “air” in the mixture to make the air pockets we have in foam. There are a variety that can be used but they tend to be some kind of hydrocarbon/gasoline-like things which gives it that smell as it leaks out of the foam, particularly more so than harder plastics.

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