PLA is a biodegradable environmentally friendly material (in the composting conditions, broken down into carbon dioxide and water), widely used in injection molding, blown films, extruded sheets, fibers and other industries and areas.it takes annually renewable resources – corn, cassava and other plants as raw material. After fermentation by microorganisms,lactic acid will be extracted, then PLA will be produced through a process of refining, dehydration polymerization, high temperature pyrolysis and final polymerization. PLA has excellent biodegradable property. After disposal, within one year, it can be degraded into carbon dioxide and water by microorganisms in the soil, and do no harm to our environment. PLA is a kind of aliphatic polyester with basic characteristics of general micromolecule materials.PLA has good machanical properties, low shrinkage, and is competent to the application of most synthetic plastics, also it's widely used in the production of package materials, disposable tableware, household electrical appliance shell, fiber, 3D supplies etc.
https://www.chemicaladditive.com/polylactic-acid-pla/