Can plastic last 10,000 years?

Durability of Plastics Over Time

Due to the slow degradation rates of most plastics by microbes—some plastics may not be degraded at all—these materials could potentially remain intact on Earth for a minimum of 10,000 years, and likely even longer, possibly spanning millions of years. The specific duration of their preservation relies not only on the environmental conditions in which the plastic is buried but also on the particular type of plastic present.