Polülaktihape

Polülaktihape, often abbreviated as PLA, is a biodegradable and biocompatible thermoplastic polyester derived from renewable resources such as corn starch or sugarcane. It is a polyester made from lactic acid monomers. The production of PLA typically involves the fermentation of sugars from these sources to produce lactic acid, which is then polymerized to form PLA.

PLA is known for its good stiffness, transparency, and ease of processing, making it suitable for a wide range of applications. It can be processed using standard thermoplastic methods like injection molding, extrusion, and 3D printing. Its mechanical properties are comparable to those of conventional plastics like polystyrene and PET, though it is generally more brittle.

One of the key advantages of polülaktihape is its biodegradability. Under industrial composting conditions, PLA can break down into lactic acid, which is then further decomposed by microorganisms into water and carbon dioxide. This makes it an attractive alternative to petroleum-based plastics for single-use items and packaging, contributing to a reduction in plastic waste and reliance on fossil fuels.

Common uses for PLA include food packaging, disposable tableware, medical implants (due to its biocompatibility and resorbability), and filament for 3D printing. Its wide availability and relatively low cost have led to its increasing adoption across various industries. However, its biodegradability is dependent on specific conditions, and it does not readily degrade in natural environments like oceans or landfills without these specific conditions.