Saturday, January 18, 2020

Plastics



Plastics are typically organic polymers of high molecular mass and often contain other substances. They are usually synthetic, most commonly derived from petrochemicals, however, an array of variants are made from renewable materials such as polylactic acid from corn or cellulosics from cotton linters.
This image has an empty alt attribute; its file name is plastics-carpenter_img.jpg

No comments:

Post a Comment